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This is Part Two of the Halewood Road Project. Part One covered the brief, the plant room build, the 45kW commercial heat-only boiler, the dual Y-Plan zoning, and the removal of the old vented tanks . This post focuses on the technical details: why we chose a Keston boiler, how a plate heat exchanger solved the problem of an old steel system, the six-month wait for listed building consent on the flue, and what it took to route that flue through a Grade II listed property in Gateacre without making a mark on the building. If you have a large, older, or listed property and you are trying to work out how to upgrade the heating without ripping the whole house apart, this is worth reading. Why We Specified a Keston Boiler in a Grade II Listed Liverpool Home The Keston range may not be the first name that comes to mind when homeowners search for a new boiler. However, it is often the right choice in specific situations. Keston boilers are designed for challenging installations. Their engineering brief focuses on flexibility: flexible flue options, suitability for difficult locations, and reliable performance in environments where standard choices simply do not fit. In this property, the boiler was installed in the basement. The flue needed to exit the building discreetly, run along the exterior, and terminate at the back, all without altering the Grade II listed facade. This requirement rules out most standard domestic boilers. Keston's concentric flue system combines the exhaust outlet and air intake in a single pipe configuration, designed specifically for this kind of routing. The flue can be extended, turned, and terminated at a high level without the performance penalties seen in domestic boilers pushed beyond their design limits. Keston boilers are heat-only (also known as regular or conventional boilers). They work with a separate hot water cylinder rather than producing hot water on demand. For a property with high hot water demand across multiple bathrooms, this is the correct approach. The stored supply means you are not waiting for the boiler to respond every time someone turns on a tap. Our boiler installations page explains how heat-only and combi configurations compare, but for a property this size, the choice is straightforward. The boiler operates on the pressurised side of the system. This distinction is crucial and leads us to the most technically interesting part of this installation. The Plate Heat Exchanger - Protecting a New Boiler From an Old Steel System Watch Ste Walk Through the Installation Our engineer Ste explains the plate heat exchanger setup and the listed building flue route on camera, filmed on site at the Gateacre property. This property has a lot of old steel pipework, which is common in older houses. The steel pipework and steel radiators in an open-vented system corrode slowly over time, releasing iron oxide particles, commonly called sludge, into the water. When you introduce a new, high-efficiency condensing boiler into an old open-vented system, that sludge and oxygen content can attack the boiler's heat exchanger. This can lead to premature boiler failure, and any warranty is likely to be voided. The conventional solution is to replace all the steel pipework and radiators with modern copper and aluminium equivalents. However, in a property like this, with steel running through multiple floors and throughout the structure, that means significant disruption: lifting floors, opening walls, and replastering. In a listed building, that level of work has planning implications of its own. It is expensive, disruptive, and in this case, entirely unnecessary. Instead, we installed a plate-to-plate heat exchanger between the new pressurised circuit and the existing open-vented circuit. A plate heat exchanger is a compact unit made up of corrugated metal plates stacked together. Two separate fluid circuits flow through alternate channels between the plates. Heat transfers from the hot fluid to the cooler one through the plate surfaces, but the two fluids never mix. In this installation: The pressurised side carries clean water flowing through the Keston boiler, the unvented cylinder, and clean copper pipework. The open-vented side remains unchanged, with the loft tank intact, at low pressure, carrying the existing steel pipework and radiators. The Keston boiler heats the water on the pressurised side. That heat transfers across the plate exchanger to the open-vented side. The pump on the open-vented circuit, responding to the room thermostat, then distributes that heat through the radiators. The boiler never sees the old water. The steel system continues to function without modification. The homeowner enjoys the efficiency and reliability of a new pressurised system without the cost and disruption of a full strip-out. This approach is not unusual in commercial heating, where mixed systems and complex existing infrastructure are the norm. Applying that thinking to a large domestic property with old steel is exactly what our commercial gas engineers are qualified to do. The solution is more robust and far less expensive than the alternative. If you have an older property with steel pipework and are considering a new boiler, do not assume you have to replace everything. Get a proper assessment first. Request a quick quote and we can look at what the system actually needs. The Listed Building Challenge - Six Months Without Heating This property is Grade II listed. In England, that means it is recognised as a nationally important building of special interest. Any works that affect its character must be approved by the local planning authority before they begin. Under the Planning (Listed Buildings and Conservation Areas) Act 1990, carrying out unauthorised works to a listed building is a criminal offence. There is no retrospective approval process: if you do the work without consent, you may be required to undo it at your own cost. Grade II is the most common listing, covering around 91.7% of all listed buildings in England according to Historic England. However, common does not mean straightforward. The constraints are real, and the process takes time. The challenge on this job was the flue. Running a flue pipe through or along the exterior of a listed building is an alteration to the fabric of the building and requires listed building consent from the local authority. The customer had been without a functioning heating system for six months while that consent was being obtained. That is not unusual for listed buildings. The process is thorough because it needs to be, and trying to rush it or circumvent it creates far bigger problems later. Our relationship with this customer goes back years. Darren Wilson first met them when they were students. He has installed heating in every house they have lived in since, watching each move take them to a bigger, more complex property. By the time they reached this one, a large Grade II listed house in Gateacre, the trust between customer and engineer was well established. That matters on a job where the customer needs to be confident in the advice they are getting, particularly when that advice involves telling them to wait six months for a planning decision rather than finding a shortcut. We were involved in advising on the flue route early in the process. This ensured that when consent was granted, the installation could proceed efficiently. Understanding what the planning authority will and will not accept, and presenting a flue route that is both compliant and aesthetically sympathetic, is part of the value a specialist engineer brings to a job like this. Our commercial gas safety work frequently involves navigating regulatory and building control requirements, and this listed building consent process followed the same principle: get the paperwork right before the pipe goes in. Routing the Flue: From Basement to Building Exterior Once consent was granted, the flue installation itself was a carefully considered piece of work. The Keston boiler sits in the basement. The flue needed to exit the building, travel along the exterior, and terminate at the back of the property at a point that met Building Regulations requirements for clearance from windows, doors, and boundaries. Stephen Boardman, our commercial engineer on this project, planned the route meticulously. The flue exits the basement, runs close to the ground along the side of the building, then rises to mid-height at the rear before terminating with the combined exhaust and air intake. Keeping the flue low to the ground for as long as possible minimised its visual impact on the building's main elevations. The termination point at the back of the property is functional without being prominent. The local planning authority approved the route on one condition: the flue needed to match the existing building. The property has black cast-iron-effect downpipes and guttering. We specified the flue in matching black. The council was satisfied, the consent was confirmed, and the installation proceeded. It is a small detail, but it is the kind of detail that determines whether a listed building application succeeds or fails. Presenting a proposal that respects the building's existing palette rather than asking the authority to accept something out of character is practical advice that saves time and application cycles. This experience comes from working on older and listed stock across Liverpool and the wider North West. Our commercial boiler service team has completed work in everything from Victorian terraces to 1930s institutional buildings, and the approach to flue routing and building consent follows similar principles each time. Hive Smart Controls: Running a Complex System Simply A system this involved—two Y-Plan zones, an unvented cylinder, a heat-only boiler, and a plate heat exchanger—needs straightforward controls. The more complex the engineering, the more important it is that the homeowner can manage the system without thinking about the plumbing behind it. We integrated the system with Hive smart controls. Hive is a well-established platform in UK domestic heating. It works well for zoned systems because you can set individual schedules and temperatures for different parts of the building from a single app. The main house and any secondary zones can be managed independently, remotely if needed, without the homeowner having to understand the mechanics of the Y-Plan valve configuration underneath. Smart controls on a system this size deliver genuine running cost benefits. A large property with an older, single-zone approach tends to heat rooms and spaces that are not being used. Intelligent scheduling, combined with the dual-zone configuration installed here, means the system fires only when and where it is needed. The Keston boiler's efficiency rating provides the baseline, and the Hive controls deliver it correctly in practice. For anyone interested in upgrading the controls on an existing system, our page on central heating upgrades covers the options. A control upgrade is one of the most cost-effective improvements you can make to an older system without replacing the boiler itself. The Unvented Cylinder: High-Pressure Hot Water Throughout We covered the unvented cylinder in Part One of this series, but it is worth returning to it here in the context of the plate heat exchanger. The unvented cylinder sits on the pressurised side of the system, receiving clean, mains-pressure water. It is completely isolated from the old open-vented circuit by the plate heat exchanger. This means the cylinder is always fed with clean water, at consistent mains pressure, without any risk of contamination from the old steel side of the system. The result is strong, consistent hot water pressure at every tap and shower in the building. In a house this size, with multiple bathrooms and potentially several people using hot water simultaneously, a well-specified unvented system is the right choice. Vented systems simply cannot deliver the same pressure at upper-floor outlets without a booster pump, which adds complexity and noise. Our engineers are G3 qualified, which is the legal requirement for installing and commissioning unvented hot water systems. If you are considering an unvented hot water cylinder for your property, the qualification and experience of the installer matter. The system includes several safety devices that must be set up correctly at commissioning, and the annual servicing requirement is mandatory under most manufacturers' warranties. We offer unvented cylinder servicing across Liverpool and the wider North West. What This Project Means for Larger and Listed Properties The Halewood Road project is a useful illustration of what is possible when a heating upgrade is approached with the right expertise rather than the standard template. The property had every complicating factor: old steel infrastructure, a listed building constraint on the flue route, high hot water demand, multi-zone requirements, and a basement location for the plant room. None of those factors required the house to be torn apart. The plate heat exchanger preserved the existing radiator circuit. The Keston boiler provided the flue flexibility the listed building required. The planning process, though slow, produced a consent that protects both the building and the installation against future challenges. The smart controls give the homeowner an accessible interface for a technically complex system. This is not the kind of job that a standard domestic installation company takes on. It requires commercial-grade knowledge applied to a residential setting, regulatory understanding, and experience with non-standard equipment. Our commercial gas engineers hold the qualifications and have the project experience to handle it correctly. If you own a large property, an older property with mixed pipework, or a listed building that needs a heating upgrade, we are worth speaking to before you assume the job is too complicated or too expensive. Often, the engineering solution that looks complex from the outside is more straightforward in practice, once you know what you are working with. See more case studies and commercial projects on our commercial heating in Liverpool blog post, or read our earlier case study from Tree Tops Nursery . Frequently Asked Questions What is a plate heat exchanger and why is it used in older properties? A plate heat exchanger transfers heat between two separate water circuits without the water mixing. In older properties with steel pipework, it allows a new, high-efficiency boiler to operate on a clean pressurised circuit while the existing open-vented steel circuit continues to function as normal. This avoids the cost and disruption of replacing all the old pipework and radiators. It is a common approach in commercial heating and increasingly used in large residential installations with legacy steel infrastructure. Can I install a new boiler in a Grade II listed building? Yes, but any works that affect the exterior of a listed building require listed building consent from the local planning authority before work begins. This includes running a flue through or along an external wall. The process takes time, and timescales vary by authority, but it is manageable with the right preparation. Choosing a boiler with flexible flue options, such as a Keston, and presenting a sympathetic flue route to the planning authority significantly improves the chances of a straightforward consent. Do not attempt to install a flue on a listed building without obtaining consent first. How long does listed building consent take for a heating installation? Listed building consent applications are typically decided within eight weeks, though complex cases or those requiring additional information can take longer. In practice, the total time from application to decision, including preparation and any back-and-forth with the authority, is commonly three to six months. Planning this stage into the project programme from the outset avoids leaving a property without heating while waiting for approval. Is a Keston boiler right for my property? Keston boilers are particularly well suited to properties where the flue route is difficult: long runs, unusual angles, or constraints imposed by listed building status or tight urban sites. They are heat-only boilers, so they require a separate hot water cylinder, which makes them most appropriate for properties with high hot water demand. If your property has a challenging flue requirement or you are replacing heating in an older building, Keston is worth discussing with a qualified engineer. Contact us to discuss your specific situation. Do I need to replace steel radiators when fitting a new boiler? Not always. If the steel radiators are in reasonable condition and the system is open-vented, a plate heat exchanger can isolate your new boiler on a clean pressurised circuit while the existing steel circuit continues to supply the radiators. This approach preserves the existing infrastructure and reduces installation costs significantly. A power flush of the steel circuit is advisable before installation to remove accumulated sludge. Our power flushing service is available across Liverpool and the North West. What areas do DD Wilson cover for commercial and complex residential heating projects? We cover Liverpool, Wirral, Merseyside, Cheshire, South Lancashire, and the wider North West. For commercial and complex residential projects, we work across the region. See our areas we cover page for full details, or call us on 0151 739 8945 to discuss your project directly. Can my heating system be upgraded without disrupting the whole house? In most cases, yes. As the Halewood Road project shows, careful specification means you can introduce modern, efficient equipment into an older property without dismantling the existing infrastructure. The right approach depends on what you have and what you want to achieve. A thorough site assessment before quoting means we can give you an accurate picture of your options. Central heating maintenance and system assessment are part of what we offer before any upgrade work begins. Related Reading The Halewood Road Project, Part One: System Design and Plant Room Build Commercial Heating in Liverpool: What Building Managers Need to Know Case Study: Commercial Boiler Installation at Tree Tops Nursery The Dangers of Neglected Unvented Cylinders Megaflo Unvented Cylinders: Servicing in the North West Upgrading Boilers in Liverpool: What to Expect

Spring is the most sensible time of year to replace a boiler. Engineers have more availability than during the winter rush; you are not sitting without heating in freezing temperatures while the work is done, and you have months before the cold weather returns to make sure everything is running as it should. If your gas bills still make you wince every month, your boiler could be a big part of the problem. Many Liverpool homes are still running on older, inefficient boilers that waste energy every time the heating comes on. The result? You pay more than you need to for less warmth and comfort. Modern condensing boilers are designed to do the opposite. They use far less fuel to produce the same amount of heat, recover more energy from exhaust gases, and run more reliably day to day. Over the lifetime of a boiler, that extra efficiency can add up to significant savings on your energy bills – especially if you’re upgrading from an older, G‑rated appliance. At DD Wilson Gas & Heating Engineers, we’re seeing more homeowners across Liverpool choose efficient Alpha and Vaillant boilers as a way to take control of their heating costs. When combined with simple changes like smart controls, correct boiler sizing, and a well‑maintained system, a modern boiler can help reduce wasted energy and keep your home comfortable for less. In this article, we’ll look at how newer boilers save energy, what to consider when upgrading, and how our Spring Boiler Deals for April 2026 can help you spread the cost of installation while you start saving on your bills. Upgrade Your Home with DD Wilson: New Boiler Installation Deals Now Available! Visit ddwilson.com for More Information. Easter Egg Hunt 2026: Are You Here for the Egg? If you have landed on this page as part of our Easter Egg Hunt 2026, welcome. Your egg is hiding somewhere on this page, so keep scrolling until you find it. Tap the egg to reveal your letter, then head back to the Easter Egg Hunt landing page  to submit your entry. Five winners each take home a £50 Amazon voucher. The hunt closes 8 April 2026. While you are here, have a read through our spring boiler deals below. You might find a saving worth a lot more than £50. Upgrade Your Home with DD Wilson: New Boiler Installation Deals Now Available! Visit ddwilson.com for More Information. Spring Boiler Installation Deals This April, DD Wilson is running three time-limited boiler deals across Liverpool, Merseyside, Wirral and Cheshire, our Spring Boiler Installation Deals . All three are available only for April 2026. Once the month is done, the pricing returns to standard. Here is what is on offer. The Three April 2026 Boiler Deals at a Glance Before going into the details of each deal, here is the quick summary: Deal 1: Combi-to-combi swap, £600 labour only. You supply the boiler and all materials. We provide the installation. Terms apply. Deal 2: Alpha boiler, fully fitted, £1,599. Down from £1,999. Saving of £400. Includes a free service in 12 months, a magnetic filter and a thermostat. Deal 3: Vaillant Pro 30kW, fully fitted, £2,200. Down from £2,599. Saving of £399. Includes a free service in 12 months, a magnetic filter and a thermostat. All three deals close on 30 April 2026. To book or get a quote, call us on 0151 739 8945 or request a quick quote online . Deal 1: Combi-to-Combi Swap - £600 Labour Only This deal is aimed at homeowners who have already sourced their own boiler or who want to keep the overall cost as low as possible by supplying their own materials. The price of £600 covers labour only. You are responsible for purchasing the boiler itself, the flue, fittings, controls and any other materials required for the job. Who is this deal for? It suits homeowners who are confident in sourcing their own materials, who have been quoted for a boiler elsewhere and want a Gas Safe engineer to carry out the installation, or who have a boiler through a supplier deal and simply need fitting. It is also popular with landlords who manage their own procurement for multiple properties. The boiler being installed must be a combi replacing a combi. If your current setup is a system or heat-only boiler, or if you are looking to change your heating configuration, this deal does not apply, and we would put together a separate quote. You can read more about the different routes available on our boiler installations page . What the £600 covers The £600 covers all labour for a standard combi-to-combi swap in a domestic property. This includes removal of the old boiler, installation and commissioning of the new one, gas and water connections, and the standard checks required under Gas Safe regulations. Any work beyond a standard swap, such as relocating the boiler, extending pipework, or upgrading the flue arrangement, would be priced separately before the job is booked. Terms apply. Please call us on 0151 739 8945 before purchasing your materials so we can confirm the job qualifies and agree on the scope of work. Deal 2: Alpha Boiler, Fully Fitted - £1,599 (Was £1,999) The Alpha boiler deal is our most popular April package. For £1,599, we supply and install a new Alpha combi boiler, and include three things that are often quoted as extras elsewhere: a magnetic system filter, a new thermostat, and a free boiler service booked for 12 months' time. The standard price for this package is £1,999. The April savings are £400. About Alpha boilers Alpha is a UK-manufactured boiler brand with a strong reliability record and a wide range of domestic models. They are A-rated for efficiency and carry manufacturer warranties of up to 10 years, depending on the model installed. Alpha boilers are a solid choice for most standard UK homes and a common recommendation for straightforward combi replacements where the priority is a dependable, efficient boiler at a fair price. We have installed a large number of Alpha boilers across Liverpool, Merseyside and Cheshire over the years. If you have questions about whether an Alpha is the right fit for your property, we are happy to talk through it before you commit. What is included in the £1,599 deal Supply and installation of a new Alpha combi boiler, a magnetic system filter installed in line with the central heating system, a new programmable thermostat, and a free boiler service scheduled for 12 months after the installation date. The service helps protect your manufacturer's warranty and keeps the boiler running at peak efficiency through its first year. To see what a typical installation entails, visit our  boiler installations page  or read about the  timeline for standard and complex boiler installations . Deal 3: Vaillant Pro 30kW, Fully Fitted — £2,200 (Was £2,599) The Vaillant Pro 30kW is our premium April deal. At £2,200 fully fitted, this is a saving of £399 on the standard price of £2,599. The deal includes the same three extras as the Alpha package: a magnetic system filter, a new thermostat, and a free boiler service in 12 months. About the Vaillant Pro Vaillant is one of the most respected boiler brands in the UK market. The Pro range sits at the top of the domestic product line and is designed for homes with higher hot water demand or larger heating systems. The 30kW output is well suited to properties with multiple bathrooms, larger floor areas or open-plan layouts where a lower-output boiler can struggle to keep up during peak demand. DD Wilson is a Vaillant Advance Master Tech-approved installer. This is the highest tier of Vaillant installer certification, and it means we have met Vaillant's own standards for technical competence, training, and quality of installation. Not every heating company carries this accreditation. It matters because a Vaillant installed by an Advanced Master Tech-approved company typically carries a longer manufacturer warranty and gives Vaillant confidence to back the product fully. For more on the Vaillant installations our team has carried out, see our Vaillant boiler installation review . What is included in the £2,200 deal Supply and installation of a new Vaillant Pro 30kW combi boiler by Vaillant Advance Master Tech-approved engineers, a magnetic system filter, a new programmable thermostat, and a free boiler service booked for 12 months after installation. Why the Magnetic Filter and Thermostat Matter Both the Alpha and Vaillant deals include a magnetic system filter and a new thermostat. These are often sold as optional add-ons by other companies, but we include them as standard in both April packages because they make a genuine difference to how long a boiler lasts and how efficiently it runs. Magnetic system filters Over time, the water circulating through a central heating system picks up iron oxide particles, commonly called sludge. This builds up in the heat exchanger inside your boiler and in the base of your radiators. It forces the boiler to work harder, reduces efficiency, and is one of the most common causes of boiler breakdowns and early failure. A magnetic filter is fitted in line with the heating circuit and captures these particles before they reach the boiler. It is one of the most effective protective measures available and is recommended by all major boiler manufacturers. Many warranties require one to be fitted as a condition of the guarantee. We also recommend combining this with a power flush if the existing system is more than 10 years old, to clear any existing sludge before the new boiler goes in. New thermostat Fitting a new thermostat alongside a new boiler means the two are calibrated together from the start. An old thermostat on a new boiler can cause the system to short-cycle, which is where the boiler fires up and switches off too frequently rather than running through a full cycle. Short-cycling wastes energy and increases wear on the boiler components. A new thermostat also gives you the opportunity to upgrade to a programmable or smart control if you prefer. Why Spring Is the Right Time to Replace a Boiler Most boiler replacements happen in winter, when a breakdown leaves people with no heating and no choice. That reactive pattern is expensive and stressful. Spring replacements are planned, unhurried and almost always cheaper. There are three practical reasons to act in April rather than wait. First, the engineer's availability is better. Between November and February, our diary fills up quickly with emergency callouts and breakdown repairs. In April, we can usually get an installation scheduled within a few days rather than a few weeks. Second, you are not without heating during cold weather. A boiler installation takes the better part of a day for a standard swap. Being without heating in April is a much smaller inconvenience than being without it in January. Third, if your boiler is already showing signs of age, it is unlikely to make it through another winter without a problem. Our blog post on boiler lifespan covers the warning signs in detail. An old or inefficient boiler is also costing you more to run each month than a modern A-rated model, as we cover in our post on why an old boiler is your home's biggest value killer . If you are not sure whether your boiler needs replacing or just servicing, we are happy to give an honest assessment. Call us on 0151 739 8945 , and we can talk it through . Finance Options If the upfront cost is a consideration, DD Wilson offers finance options on boiler installations. Rather than paying the full amount on the day, you can spread the cost over a period that suits your budget. To find out more about what is available and how to apply, visit our finance options page . DD Wilson Gas and Heating Engineers Ltd is an Introducer Appointed Representative of Switcha Limited (FCA registration: 1017595). What Our Customers Say "Had a new boiler installed and couldn't be happier. The whole team were professional, tidy and explained everything clearly. Would recommend to anyone." Sandra Welford, Google Review, February 2025 "Excellent service from start to finish. Competitive price, great communication and the installation was completed on the day as promised. Very happy with the result." Paul Newby, Trustpilot, January 2026 DD Wilson carry a 4.9-star rating from 2,365+ reviews across Google and Trustpilot. To read more, visit our testimonials page . About DD Wilson Gas and Heating Engineers DD Wilson Gas and Heating Engineers Ltd are a family-run heating and plumbing company based in Liverpool. Founded in 1998 by Darren Wilson, we have been installing, servicing and repairing boilers across Merseyside, Wirral, Cheshire, South Lancashire and the wider North West for more than 25 years. We are Gas Safe registered (583586), Vaillant Advance Master Tech approved, and ATAG approved. All our engineers are fully qualified and work to the standards required by the Gas Safe Register on every job. Beyond boiler installations, we cover boiler repairs , annual boiler servicing , central heating upgrades , full bathroom installations , power flushing , unvented cylinder installation and servicing , general plumbing and landlord gas safety certificates . To see the full list of areas we cover, visit our local areas page . Frequently Asked Questions Are the April deals available throughout April? Yes. All three deals are available from 1 April 2026 and close on 30 April 2026. Installations do not need to be completed by the end of April, but they must be booked and confirmed in April to qualify for the deal pricing. What does the £600 combi swap deal include? The £600 covers labour only for a standard combi-to-combi swap in a domestic property. The customer is responsible for supplying the boiler and all associated materials, including the flue, fittings and controls. Any non-standard work beyond a like-for-like swap is quoted separately. Terms apply. Call us before purchasing materials to confirm your job qualifies. Can I choose a different Alpha model or output? Yes. The April deal applies across a range of Alpha combi models suited to your property. When you get in touch, we will recommend the right output based on your home size, number of bathrooms and hot water demand. The £1,599 price applies to a standard domestic installation. Is the Vaillant Pro suitable for a large house with multiple bathrooms? The Vaillant Pro 30kW is designed for higher demand properties. It is a strong choice for homes with two or more bathrooms or larger floor areas. If your property is unusually large or has more than three bathrooms, we would assess whether a higher output model is more appropriate before confirming the deal price. What does the free service in 12 months cover? The free service scheduled at 12 months is a full annual boiler service carried out by a DD Wilson Gas Safe engineer. It covers a visual inspection of the boiler and flue, combustion analysis, heat exchanger cleaning, a check of all controls and safety devices, and a gas pressure test. It forms part of the standard annual maintenance recommended by all boiler manufacturers to keep the warranty valid. Do you offer finance on the April deals? Yes. Finance is available on the Alpha and Vaillant fully-fitted packages. Visit our finance options page or ask when you call for more information on repayment terms. What areas do you cover? We cover Liverpool, Merseyside, Wirral, Knowsley, Sefton, St Helens, Halton, West Lancashire, Cheshire West and Cheshire East. For a full list of specific towns and postcodes, see the local areas we cover page . Book Your April Boiler Deal DD Wilson Gas and Heating Engineers Ltd / family-run in Liverpool since 1998. Gas Safe Registered: 583586  |  Vaillant Advance Master Tech Approved  |  4.9 stars, 2,365+ reviews Three deals, April 2026 only: £600 labour-only combi swap   |  Alpha from £1,599   |  Vaillant Pro 30kW from £2,200 Book Online   Quick Quote   Call 0151 739 8945 Serving Liverpool, Merseyside, Wirral, Cheshire and the wider North West   |  Areas we cover   |  Read our reviews |

Three heating engineers visited a five-star Cheshire wedding venue. All three came back with the same quote: a single heat-only boiler with a vertical flue. All three missed something that should have been obvious once they looked at the building properly. When Dorfold, a prestigious wedding venue near Nantwich with capacity for up to 200 guests, approached DD Wilson Gas & Heating Engineers, our first job was to listen. What the venue needed was not just a replacement boiler. They needed a solution that would reliably handle the heating load, protect the building's aesthetics, and be completed before the March 20th deadline, with their season about to begin. This is how we delivered all three in five days, with a five-year parts-and-labour guarantee included. If you manage a commercial property with significant heating requirements, read on. Our commercial gas engineers  page has more on the range of work we cover across Cheshire and the Northwest. The Client / A Five-Star Cheshire Wedding Venue Commercial Boiler Installation at a Cheshire Wedding Venue Dorfold is not a typical commercial premises, but a  Commercial Boiler Installation at a Cheshire Wedding Venue is just another day for the DDWilson team . It is a high-end rural wedding venue with a ceremony and dining capacity of 160 guests and a total capacity of 200 guests, including evening arrivals. The venue operates a late-night licence until 1 am and hosts events throughout the year, so reliable heating is not a seasonal concern. It is a year-round operational requirement. The barn at Dorfold is known for its atmosphere: advanced heating systems, roaring fires, candles, and outdoor fire pits for evening guests. Given the English weather, the building needs to be warm and inviting regardless of what is happening outside. Guests pay a premium for an experience, and that experience depends in part on the space's physical comfort. When a commercial property like this has a heating problem, the consequences of getting it wrong are serious. There are no quiet conversations to be had when heating fails on a wedding day. You have 200 guests, a six-figure event, and a couple whose day cannot be rescheduled. That is the context in which the management team sought new boiler installations  quotes from three heating engineers before contacting us. What Three Other Engineers Got Wrong Each of the three engineers who visited produced a quote for a single heat-only boiler with a vertical flue. On a straightforward job, that might be a perfectly reasonable approach. But nobody bothered to think about where that flue would terminate. The boiler plant room is housed in a building adjacent to the main venue structure. The side of the building visible to guests and photographers. The side that appears in wedding photographs taken on what is, for any couple, one of the most important and photographed days of their lives. A vertical flue rising visibly from the side of a five-star venue is not a detail the management team were prepared to accept, and rightly so. The other issue none of the three engineers addressed was redundancy. A single boiler serving a commercial venue of this scale means that a single fault leaves the entire building without heating. No backup, no continuity, no fallback. For a venue of this kind, that is an unacceptable risk. Our commercial boiler repair  team regularly visits venues that have had exactly this problem with single-boiler installations. The DD Wilson Approach / Understanding the Job Before Specifying the Kit When our commercial manager, Steve Boardman, visited Dorfold on quote day, the first thing he did was look at the existing flue. The current boiler was venting through the loft space and terminating through the parapet at the side of the building. Steve could see the corrosion on the steelwork around the terminal point. He could see exactly why a vertical flue in that position was a problem. And he knew immediately that a custom flue route was the answer. By specifying custom boilers rather than standard units, we could engineer the flue configuration to deflect the run and exit through the wall into the kitchen area at the rear of the plant room. The flue termination would be entirely out of sight from the main photographic angles. A detail that had apparently not occurred to any of the other engineers became the centrepiece of our solution. We also specified a cascade system from the outset. Two 55kW Keston Heat boilers operating together, each with its own Belimo zone valve controls, so that if one unit ever experiences a fault, the second continues to run independently. The venue never loses heating entirely. This is the right architecture for any commercial building where continuity of service is not optional. You can read more about our approach to central heating upgrades  for larger properties on our service pages. The Full System Specification The complete installation at Dorfold covered the following: 2 x Keston Heat 55kW heat-only boilers in cascade configuration Custom flue routing, deflecting through the kitchen wall and away from the photographic sight lines Automatic microfill pressurisation system, maintaining system pressure without manual intervention Belimo brushless DC actuator zone valves controlling both heating circuits and the domestic hot water circuit New strainer and zone valve pipework configuration throughout 35mm LPGA gas supply reducing to 22mm at the final half-metre connection to each boiler Integration with the existing approximately 500-litre domestic hot water cylinder 5-year parts and labour guarantee on the full installation Complete installation across five working days, finished before the March 20th venue deadline The Belimo actuators are worth a specific mention. These are high-performance electric motors designed to precisely control HVAC valves and dampers. They use brushless DC motor technology, which makes them significantly more reliable and energy-efficient than older valve actuation methods. Rather than manually operated valves requiring staff intervention, the zone valve configuration at Dorfold enables the system to operate automatically. Combined with the microfill unit, the result is a system that largely manages itself. For a venue without a dedicated facilities engineer on site, this is a material benefit. Our central heating maintenance  service can also keep systems like this running at full efficiency year after year. Day by Day / How the Five-Day Installation Unfolded Quote Day | Identifying the Real Problem On his site visit, Steve identified the existing flue termination through the parapet as the key issue. The corrosion visible on the surrounding steelwork was already evidence of ongoing problems with the existing installation. The existing single boiler was not just the wrong answer architecturally. It was a boiler that was already showing signs of age. Steve's brief to the team before work began was straightforward: solve the flue visibility problem, install redundancy, and get it done before March 20th. Day One | Clearing the Way Before the new pipework could be laid, the existing expansion vessel needed to be repositioned. The team spun the vessel around and secured it, clearing a clean run for the new pipe routes to come across to where the new boilers would sit. The groundwork on day one meant that the pipe installation on subsequent days could proceed without delays or rework. Days Two and Three | Pipework and Boilers in Position By day three, both Keston Heat boilers were in position. The gas pipework was being connected, with the 35mm LPGA supply route running through the plant room and reducing to 22mm for the final connection at each boiler. The strainer, zone valves, and Belimo actuators were being fitted. The hot water circuit zone valve was connected to the existing large cylinder. Both boilers' flow and return pipework were running across and out to the main distribution circuits feeding the building. The old boilers needed to be split into sections before removal. They were simply too heavy and too large to move in one piece. This is not an unusual challenge on a commercial job in an older property, but it requires the right team and equipment to handle efficiently without causing damage to the building. Days Four and Five | Flues, Gas, and Commissioning The custom flue installation was completed on day four. The runs went up and through the wall into the kitchen area, as planned on quote day, with no visible external terminal on the photographic side of the building. Day five was commissioning, final checks, and handover. The system was live, fully operational, and covered by a five-year guarantee. If you ever need a commercial boiler service  after installation, we cover the full ongoing maintenance lifecycle as well. What We Found When We Stripped Out the Old Boilers When the team removed the old boilers, they found something that had not been visible during the pre-work survey: clear evidence of internal combustion gas spillage. The staining on the gas pipe, the pitting on the gas valve, and the discolouration across the backs of both heat exchangers were all consistent with combustion gases escaping from the backs of the heat exchangers. Both units had been leaking combustion products internally. This is not visible from outside the boiler casing, and it only became apparent once the units were physically removed and examined. This discovery added nothing to the client's project cost. The installation proceeded as planned and was completed on schedule. But it is a reminder that a boiler producing heat is not necessarily operating safely or correctly. Our commercial gas safety certificate  service is available to commercial property owners across Cheshire and the Northwest. CARBON MONOXIDE RISK: WHAT COMMERCIAL PROPERTY OWNERS NEED TO KNOW Internal combustion spillage of this kind is a serious safety matter. In a commercial premises with regular staff, guests, and large gatherings, the potential consequences are considerably more significant than in a domestic property. This is one reason why annual Gas Safe-certified inspection and servicing of commercial heating systems is not a legal grey area. It is a requirement. The old boilers at Dorfold showed no visible external warning signs. The problem was only discovered on removal. Annual commercial boiler servicing, carried out by a qualified Gas Safe engineer, is the only reliable way to identify developing faults before they become safety issues. Why a Cascade System Is the Right Choice for Commercial Properties A cascade boiler system operates two or more units together, with controls that manage the load between them. Under normal demand, both boilers contribute. Under lower demand, one may modulate down while the other carries the load. If one unit develops a fault and shuts down, the second continues to run independently. For a domestic property, a single boiler failure is inconvenient. For a commercial property with events booked weeks or months ahead, the consequences are in a different category entirely. A wedding venue with no heating on a November wedding day is facing an event cancellation, direct financial loss, and serious reputational damage. A cascade system does not eliminate the possibility of a boiler fault. It eliminates the possibility that a single boiler fault brings the whole building down. Most commercial properties of significant size should specify cascade or multiple-boiler configurations as standard. If your current heating arrangement relies on a single unit with no backup, it is worth speaking to a commercial gas engineer  about what a proper upgrade would involve. You can also browse our boiler upgrades  service page for more details on modern installation options. The Microfill System / Automatic Pressurisation for Commercial Buildings Every sealed central heating system needs to operate within a specific pressure range. In a domestic home, most homeowners learn to check the pressure gauge and manually top up the system if it drops. In a commercial building, that responsibility typically falls to whoever is on site, whether or not they have been trained to do it correctly. A microfill system is an automatic pressurisation unit that monitors system pressure continuously and tops it up from the mains supply as needed. There is no manual intervention required, no gauge to check, no valve to operate. The system simply maintains its own pressure within the correct range. For a venue like Dorfold, where staff are focused on events rather than plant room management, this removes a fault point entirely. Nobody forgets to top it up. Nobody tops it up incorrectly. The system is always at the right pressure. If your commercial building relies on manual topping up and you want to understand the alternatives, our pages on unvented cylinders and pressurisation systems  cover the full range of options. What This Means for Your Commercial Property The Dorfold project is a useful illustration of what separates a competent commercial heating specification from a generic one. Four things matter here, and all four are relevant to any commercial property owner considering their heating. The first is asking the right questions. A flue that terminates in the wrong place on a wedding venue is not a technical problem. It is a failure to understand the client. Any engineer specifying a commercial job should understand the building, the use, and the priorities before producing a design. The second is redundancy. Any commercial property with a legal obligation to provide a safe and habitable environment for guests, staff, or tenants should have a heating system that does not have a single point of complete failure. The cascade approach is not expensive relative to the cost of a heating failure. The third is safety. The combustion spillage we found at Dorfold was invisible until the boilers were removed. An annual commercial Gas Safe inspection is the only way to catch developing faults before they become crises. Our team issues commercial gas safety certificates to businesses across the Northwest, including landlords, hospitality operators, and facilities managers. The fourth is delivery. Dorfold had a hard deadline, and we met it. If your property needs work to be completed before a season, a major event, or a regulatory inspection, talk to us. We cover Cheshire, Merseyside, and the wider Northwest. You can see the full list of areas we serve , or visit our about us  page for more on our 27-year trading history and Gas Safe registration 583586. Frequently Asked Questions How much does a commercial boiler installation cost? Commercial boiler installations vary significantly depending on the number of units, their output, the complexity of the flue route, and the pipework involved. A straightforward single-boiler replacement in a smaller commercial property is a different job to a cascade installation in a listed building with unusual flue requirements. The best starting point is a site visit and a discussion of specifications. Our quick quote  page is a good first step. What is a cascade boiler system? A cascade system runs two or more boilers in parallel, with a control system managing the load between them. If one boiler develops a fault, the other continues to run. Cascade systems are the standard recommendation for commercial premises where heating continuity cannot be compromised. Do I need a commercial gas safety certificate? If you are a landlord, venue operator, or business owner responsible for gas appliances in a commercial or rented property, you have a legal obligation to maintain them and have them inspected by a Gas Safe-registered engineer. Our commercial gas safety certificates  service covers businesses across Cheshire and the Northwest. How long does a commercial boiler installation take? The Dorfold installation covered the removal of existing boilers, a full new cascade installation, custom flue routing, pipework, zone valves, microfill, and commissioning across five working days. Timescales depend on the complexity of the job, but we work to agreed deadlines and communicate clearly throughout. What is a microfill system, and do I need one? A microfill is an automatic pressurisation unit that keeps your sealed heating system at the correct pressure without manual intervention. For commercial properties where staff are not routinely monitoring plant-room equipment, a microfill eliminates a common fault source entirely. See our unvented systems  page for related options. What is a Belimo actuator, and why does it matter? Belimo actuators are high-performance electric motors that automatically control HVAC zone valves, replacing manual valve operation with precise motorised control. They use brushless DC motor technology, which makes them significantly more reliable and energy-efficient than older actuator types. In a commercial heating system with multiple zones and circuits, Belimo actuators allow the system to manage itself with minimal manual input. Can DD Wilson carry out commercial work outside Liverpool? Yes. The Dorfold project was in Cheshire, and we regularly carry out commercial and domestic work across Cheshire, Merseyside, and the wider Northwest. See our areas we cover  page for details, or contact us directly to discuss your property. Get a Commercial Heating Quote DD Wilson Gas & Heating Engineers work with commercial clients across Cheshire, Merseyside, and the wider Northwest. Call us on 0151 739 8945 or use our online booking system to arrange a site visit. Book a Site Visit: Related Reading If you found this useful, you may also want to read: The Ultimate Guide to Heating System Overhaul in Liverpool Understanding Gas Safety: What You Need to Know Unvented Hot Water Cylinders for Large Properties Or browse our full range of commercial services , check our customer testimonials , or book a consultation online .

Looking for boiler installation near me? DD Wilson offers expert boiler installation near me for homes and businesses in Runcorn. Central Heating, Gas And Plumbing Installations And Repairs Runcorn Get A Fast Quote Go Back To Areas We Cover Where DDWilson By Postcodes In Runcorn Are you looking for professional boiler installation services in Runcorn? Our expert team provides top-quality boiler installation solutions tailored to your needs. With years of experience and industry-leading expertise, we ensure efficient, reliable, cost-effective installations for residential and commercial properties. Contact us today for a hassle-free installation experience and enjoy a warm and comfortable environment all year round. Book your boiler installation in Runcorn now! Say goodbye to chilly winters and hello to optimal comfort with ddwilson.com! At ddwilson.com, we specialise in delivering award-winning boiler installation solutions for Runcorn residents. Our experienced team understands the unique needs of the local community and is committed to providing reliable, energy-efficient, and cost-effective installations that will keep your home cosy all year round. Trust our expertise and book your Runcorn boiler installation today. This Filthy heating and hot water system is being removed today in Runcorn This Filthy heating and hot water system is being removed today in Runcorn; we see a lot of traditional heat-only boilers that need upgrading and replacing for a combi in the WA4, WA5, WA6, and WA7 postcode areas. Today, the team upgraded this heating and hot water system by removing the leaky water tanks in the loft. We removed the immersion hot water cylinder heater. Then, the team removed the traditional heat-only boiler. We then power flushed their heating system and radiators. To help protect the new system, we installed a magnetic protection filter and a new Vaillant eco combi boiler that's entirely Hydrogen ready. The boiler will include ten years of Parts and a labour guarantee. We will issue full safe Gas Documentation certificates and building control compliance certificates. We will even send free Reminders to have your boiler serviced yearly. We remove all the waste and rubbish on the installation day, which usually takes our team 1 day to complete to a high standard. The benefits are massive with this type of job, including: Not washing in filthy hot water. Hotter radiators heat your home faster. Better hot water flow and pressure, better showers, etc. Fuel bills usually drop 50% and more on this heating and hot water system upgrade. Full guarantee on all our work and the new condensing combi boiler. Interested in upgrading before the fuel bills rise again? We are fluent in this heating system installation and have won awards to prove it. Backed by thousands of local organic earned 5-star Reviews. Contact our friendly team now! Call 0151 739 8945 option 1 Visit DDWILSON.COM.

Gas Safe registered boiler installations, repairs, servicing and plumbing across Liverpool, Wirral and Merseyside. Family-run since 1998. Call 0151 739 8945. Boiler Installation and Repairs Liverpool DD Wilson Gas And Heating Engineers Proudly serving since 1998 Boiler Installers And Boiler Servicing - Expert Plumbers & Gas Engineers Serving Liverpool & Merseyside Areas. Vaillant Advanced Accredited, Alpha Select Installers Open 7 Days A Week - Call Us Today 0151 739 8945 - Gas Safe Number: 583586 Get Your Free Boiler Quote Watch how our Liverpool-based customer got their boiler replaced in just 24 hours. Our Customers Say I’m from Bootle, and DD Wilson helped me with a new boiler installation . I would highly recommend them for plumbing , radiator work, and bathroom installation. The service was fast, friendly, and professional." Sandra, NHS Worker – Liverpool Watch how one of our local NHS customers got their boiler replaced in just 24 hours. Commercial Clients Local Family Run Domestic And Commercial Gas Boiler Installation Specialists, No Stress & No Mess. The best boiler and heating installation service. We proudly serve Liverpool, Merseyside, South Lancashire, Greater Manchester and North Wales. When your boiler breaks down, or you're ready for a brand-new installation, you want someone you can trust. At DD Wilson Gas and Heating Engineers, that's exactly what you get. Founded by Darren Wilson over 27 years ago, we've built our reputation the old-fashioned way, through honest work, reliable service, and thousands of happy customers across Liverpool and beyond. We're Gas Safe registered, award-winning, and proud to be approved installers for both Vaillant and Alpha boilers. Whether it's a quick repair, a full boiler replacement, or a same-day emergency callout, our friendly team is ready to help, with no jargon, no hard sell, and no nasty surprises. Contact Our Team We will fix your heating issues Book Your Appointment We sign off the work for another complete job Discover Our Story DD Wilson Gas Safety Register: Heating and Plumbing Services Four easy steps to ensure your boilers are in tip-top shape, keeping your home warm and water hot all year round. We wouldn't want it any other way at DD Wilson Gas And Heating Engineers. Here's to the reliable local service you've grown to trust! Remember, at DD Wilson Gas & Heating Engineers, we're not just about business. We're about community, reliability, and friendships nurtured through years of dedicated service. Now that you know our booking process, we’re an appointment away, always ready at your service! 1: Identifying Your Needs First things first. What do you need help with? A routine boiler service? An upgrade to an eco-friendly heating system ? Or are you tackling an unexpected breakdown? Take a moment to browse through our extensive range of gas and heating services. No matter what you're dealing with, you'll find that we've got a solution tailored just for you. 2: Get Your Free Quote Transparent pricing is part of who we are. You won't find any catch or hidden fees here. Enter the details of your requirements into our user-friendly online form and receive an instant quote. You're one step closer to ticking that task off your list! 3: We will allocate a time slot for you We respect your time. With our versatile slots, you can book an engineer who'll fit right into your schedule. Early bird or night owl, we've got you covered. Sometimes jobs can be more complicated than originally thought but we will keep in touch to let you know if your time slot changes. 4: Confirmation and Ready to Go! Almost there! Just review your booking details one last time and hit the confirm button. See? A doddle, wasn't it? Plus, you won't be left in the dark about your appointment. We'll send you a confirmation email with all the details of your booking because we believe in keeping communication lines open , clear and concise. Awards And Certifications DDWilson is proud to have attained various awards and industry recognitions that solidify our reputation as a leading boiler installation provider. These distinctions include winning the UK Enterprise Awards and showcasing our commitment to outstanding service and enterprise excellence. DDWilson is a "Vaillant Mastertech Accredited," ensuring our customers uphold the highest boiler service standards. One of our most recent achievements was winning the "Global 100 Winner 2022." This recognition, along with other accolades, affirms our commitment to providing high-quality service in the boiler installation industry. Our commitment to elite quality service has also granted us an affiliation with the Guild of Master Craftsmen from 2020 to 2023. Finally, our team holds Gas Safe Certification, a mandatory qualification for UK professionals working on gas appliances. Customer Testimonials “The team's politeness and responsiveness were commendable, answering all queries and ensuring the installation of a brand new central heating and boiler system. ” BRADLEY AND ELIZABETH - MAGHULL “We had just moved into our new home and needed the Central Heating to be serviced. DD Wilson’s prices really helped us along and we could not have asked for better service.” ANNE CAMPBELL - EVERTON “DD Wilson arrived at our house in an unbelievably quick period of time as we had a burst pipe leaking water. They managed to fix it and save most of our valuables as a result.” JENNIFER HADOW - LIVERPOOL See Testimonials Trusted Plumbing & Heating Engineers in Liverpool Since 1998 For over 25 years, we have supported homeowners across Liverpool and Merseyside with reliable, Gas Safe-certified boiler installations , plumbing solutions, and emergency services. Our experienced team is fully registered, recognised by the Guild of Master Craftsmen, and known locally for delivering high-quality work with 5-star customer service. We offer: – 0% APR boiler finance options – 24/7 emergency callouts across the North West – Professional installations with a clean, no-mess guarantee Want to know more? Why Choose DD Wilson? Award-Winning Service: We are proud to have received multiple awards for our high-quality service in boiler installations and plumbing solutions. Finance Options: We understand that a new boiler is a big investment, so we offer 0% APR finance for our installations. This way, you can get the comfort you need without breaking the bank. Learn more about our finance options here. 24/7 Emergency Callouts: We offer emergency plumbing services across the North West. If you are dealing with leaks, breakdowns, or heating issues, our team is available 24/7 to help restore your home’s comfort. Professional Installation: With thousands of successful installations, our team delivers expert, no-mess installations every time. Discover more about our boiler installation services . Boiler Installations and Upgrades We specialise in providing energy-efficient boiler installations that can help save you up to 30-50% on your annual energy bills. Upgrading to a newer, high-efficiency boiler is one of the most effective ways to improve energy usage in your home, especially with rising energy costs. Click here to learn more about our boiler upgrade options. Reliable Plumbing Services From pipe repairs to bathroom installations, we offer various plumbing services to keep your home running smoothly. Our experienced engineers ensure that every job, big or small, is carried out professionally, on time, and with minimal disruption. Please find out more about our plumbing services. Central Heating Installation and Maintenance We provide comprehensive central heating installation and maintenance services to ensure your home stays warm during cold winter months. Our preventative maintenance helps keep your heating system in top condition, reducing the chance of unexpected breakdowns. Learn more about central heating maintenance. Customer Testimonials Don’t just take our word for it; hear from our satisfied customers. With over 3,000 five-star reviews, we have built a reputation based on trust, reliability, and exceptional service. Here’s what some of our customers have said: "DD Wilson installed my new boiler, and the service was amazing from start to finish. The engineers were prompt, professional, and explained everything clearly." - Jane L., Liverpool. "Thanks to DD Wilson, my heating system is more efficient, and my bills have dropped significantly!" - Michael T., Merseyside. Read more customer testimonials . Smart Thermostat Installation Looking to make your home smarter and save on heating costs? We offer installation services for smart thermostats, which allow you to control your heating remotely while reducing your energy bills. Smart thermostats can help you save up to 15% annually on your heating costs. Discover how a smart thermostat can benefit you. Areas We Cover Our engineers are proud to serve customers across Liverpool, Merseyside, Wirral, St Helens, and surrounding areas. No matter where you are in the North West, we are here to help. Get Your Free Quote Today Whether you're in need of a new boiler, central heating maintenance , or plumbing repairs, our friendly and knowledgeable team is here to help. Contact us today for a free, no-obligation quote. Call us now on 0151 739 8945 to book an appointment or speak with one of our heating experts. We’re ready to bring warmth, safety, and energy efficiency to your home. Service Area We cover a vast area around the North West. We go further depending on the job needed to be done. Plumbers & heating engineers Local plumbers & heating engineers , serving all areas of Liverpool, Merseyside, Cheshire, Runcorn. Competitive Pricing We work closely with local trades and international manufacturers to keep getting the best quality products at competitive prices Contact Us We provide certified, Gas Safe® ( 583586 ), professional plumbing & heating services to all areas of the north West. All our plumbers & heating engineers are certified and/or Gas Safe Registered. So contact us today. Areas We Cover Across Liverpool and Beyond DD Wilson Gas & Heating Engineers proudly serves customers across Liverpool, Merseyside, and the wider North West. Our qualified team operates in both residential and commercial properties across the region, bringing trusted plumbing and heating expertise to every job. Popular service areas include: Liverpool , Allerton, Woolton, West Derby, Aigburth, Bootle, Crosby, Maghull, Huyton, Prescot, Southport, Wirral, St Helens, Ormskirk, Widnes, and more. If you're unsure whether we cover your area, call our friendly team — we're happy to help. Boiler Installation Guide | Free Resources Accsess Your Free Plumbing Guides Latest Articles | Expert Heating Advice from Liverpool's Gas Safe Engineers, DD Wilson Real heating expertise from Gas Safe engineers who actually do the work. Our blog shares practical insights from commercial and residential projects across Liverpool, Wirral, and Merseyside. From emergency boiler repairs to complex commercial installations like our League of Welldoers heating system overhaul, we document real jobs and explain technical processes in language homeowners and business owners can understand. No generic advice copied from manufacturers' websites, just honest, experienced guidance from DD Wilson's engineers who've spent decades keeping North West properties warm. Upgrading Heating in a Grade II Listed Liverpool Home: The Halewood Road Project Commercial Boiler Installation at a Cheshire Wedding Venue: How We Solved a Problem Three Engineers Missed Commercial-Grade Heating for a Large Liverpool Home: The Halewood Road Project

DDWilson's quality Combi-to-Combi Swap ensures efficient heating and hot water solutions. Depend on our expert swap services for a hassle-free experience. Quality Combi To Combi Swap Is Your Heating & Hot Water System Causing You Problems? DDWilson The Award Winning Boiler Installation Team Book A Combi To Combi Swap The Combi Boiler Revolution with DD Wilson The revolution of combi boilers has changed the game in home central heating and hot water systems. Combi boilers are an efficient and cost-effective choice for modern homes. At DDWilson, we aim to ensure that your transition from combi to combi is seamless and efficient. Here's why you should choose us for your combi swap needs. Subscribe to our newsletter • Don’t miss out! Email* Join I want to subscribe to your mailing list. Experienced Professionals We have a team of skilled professionals offering more than technical ability. They are highly trained, Gas Safe-registered engineers with expertise in combi-to-combi boiler installations. Thanks to their technical proficiency, they handle every boiler swap meticulously, ensuring everything is installed correctly, safely and cleanly. You're not just getting a quality combi boiler but peace of mind. Unrivalled Service Customer satisfaction is our top priority. We understand that a boiler installation might disrupt your day-to-day life, so we are committed to working around your schedule, ensuring minimum disruption and maximum satisfaction. With our services, you get no stress and no mess. Combi-Combi Swap Offer Our premium Quality Combi-to-Combi swap deal ensures we install a top-of-the-range Vaillant Ecotec Pro 30 kW combi boiler, guaranteed to keep your home warm for years. To top it off, until May 2026, this fantastic deal is all in for just £2,499 for the Vaillant installation. Our Guarantee We stand behind our work. With our complete 10-year parts and labour warranty, we assure you that our products and services are of the highest standards. This warranty affirms our dedication to providing reliable and durable products which meet and exceed your expectations. Aftercare Services Beyond just installations, we provide comprehensive aftercare services to keep your boiler at peak performance. Whether you need regular servicing, power flushing, repair, or even complete system overhauls, you can rest assured that DDWilson can provide prompt and practical solutions. A Proven Track Record With over 3000 5-star reviews, we are a proven and trusted company that provides quality heating solutions. We are the recipients of various recognitions, endorsed by Trustatrader and verified by the Guild of Master Craftsmen. Book A Combi To Combi Swap