124 City Road, London EC1V 2NX Mon-Fri 8:00-16:00 · Sat 9:00-13:00 office@refurbsquad.co.uk 07460 046234 HomeAboutServices Service Area Our WorkReviewsContact 07460 046234Request Estimate Home/Services/Heating InstallationsHeating Installations · London # Heating installationsin London,sized right, installed clean. Boiler upgrades, full central heating, radiator upgrades and underfloor heating installed by a Gas Safe registered engineer, on a fixed price agreed before install day. Request a free estimate 07460 046234 5.0★ on Google · Gas Safe registered · Written quote back in the same week. 15 yrs On the tools £1M Public liability 5.0★ Google rated 12 mo Workmanship guarantee Same wk Written quote Service overview ## Heating installed by Gas Safe engineers under one contract ### What it is New combi and system boiler installs, boiler upgrades and swaps, full central heating design and install, radiator upgrades, underfloor heating (electric and hydronic), power-flushing and system commissioning. ### Who it's for Homeowners upgrading a failing boiler, landlords bringing a rental up to spec, and clients on renovation projects who need heating designed around a new layout. ### When you need it Boiler over 10 years old, cold radiators, low pressure, noisy pipework, or a renovation / extension that changes the heating load of the property. ### Why professional matters Boilers are the most warranty-conditioned appliance in the house. Skipped flushes, undersized pipework or wrong flue routing all void manufacturer warranties, we install so the warranty holds. The cost of getting it wrong ## What goes wrong with cheap heating installs A £100 saving on a boiler install can cost £2,000 in a voided warranty two years later. The economics only work if the install is done to manufacturer spec. If ignored - Voided boiler warranties Manufacturers require a magnetic filter, correct gas supply, system flush and commissioning notes. Skip any of those, the 10-year warranty is gone. - Undersized boiler, cold rooms Boiler capacity calculated on square metres alone (not heat-loss) leaves rear extensions and top-floor rooms permanently cold. - Sludge kills new boilers Installing a new boiler onto an old, unflushed system dumps sludge straight into the heat exchanger, expensive failure inside 2-3 years. - Wrong flue = CO risk Flue routing that doesn't meet manufacturer clearances is a life-safety issue, not just a compliance one. Common mistakes - Sizing on square metres, not heat loss Real heating design uses room-by-room heat-loss calculations. Anything less is a guess. - No system flush on boiler swap BS 7593 requires a power-flush and inhibitor on any boiler change. Skipping it is the #1 cause of premature failure. - No magnetic filter fitted Manufacturers require a magnetic system filter on install, it's now warranty-critical, not optional. How it works ## A step-by-step system,not a guess. - 01 Step 1 ### Free survey & heat-loss check We check current boiler, system age, gas supply size, flue routing and room-by-room heat loss. - 02 Step 2 ### Fixed written quote Itemised quote back inside the same week with recommended boiler, controls, filter and any pipework upgrades. - 03 Step 3 ### Install & pipework upgrades New boiler installed to manufacturer spec, magnetic filter fitted, gas supply upgraded if required, flue routed to clearance rules. - 04 Step 4 ### Power-flush & commissioning System power-flushed to BS 7593, inhibitor dosed, boiler commissioned with benchmark record signed off. - 05 Step 5 ### Sign-off & guarantee registration Gas Safe certificate issued, benchmark completed, manufacturer warranty registered on your behalf, 12-month workmanship guarantee. What you actually get ## Concrete outcomes,not adjectives. ### Warranty-safe installation Every boiler installed to full manufacturer spec so the 7-10 year warranty holds. ### Heat-loss designed Room-by-room heat-loss calc so every radiator is sized to actually warm the room. ### System power-flushed BS 7593-compliant flush and inhibitor on every boiler swap. ### Gas Safe registered All gas and boiler work carried out under Gas Safe registration with certificate issued. ### One accountable team Plumbing, gas, electrics and controls under one contract. ### 12-month guarantee Written workmanship guarantee on top of the manufacturer warranty. Materials & methods ## Boilers, controls & heating systems we install The right heating system depends on the property, the hot-water demand and the fuel supply. Here's the range we work in. ### Materials we work with - Combi boilers (Worcester Bosch, Vaillant, Viessmann, Ideal) - System boilers with unvented cylinders for high hot-water demand - Weather-compensating and load-compensating controls - Smart thermostats (Hive, Nest, Tado, Wiser) - Magnetic system filters (MagnaClean, Adey) on every install - Aluminium and steel-panel radiators, designer towel rails - Hydronic underfloor heating with manifolds and zone controls - Electric underfloor heating mats for bathroom retrofits ### Methods & standards - Room-by-room heat-loss calculation before boiler sizing - Gas supply sizing check against total appliance load - System power-flush to BS 7593 on every boiler swap - Manufacturer benchmark commissioning record signed off - Manufacturer warranty registered on your behalf ### Variations of this service Combi boiler swap Straight combi-to-combi swap with system flush, magnetic filter and controls upgrade. Typically 1-2 days on site. Conventional to combi conversion Full conversion including tank removal, pipework simplification and controls upgrade. Typically 3-5 days. System boiler with unvented cylinder For properties with high hot-water demand, multiple ensuites, family bathrooms running simultaneously. Full central heating install Complete design and install into new-builds, extensions or full renovations. Underfloor heating Hydronic UFH for extensions and open-plan spaces, electric UFH for bathroom retrofits under tile. ### Property types & settings We install into Victorian and Edwardian terraces (often needing gas supply upgrades), mansion-block flats (with landlord consent for flue routing), 1930s semis and modern new-builds. ### Areas we cover - St John's Wood - Paddington - Kensington - Bayswater - Regents Park - Hampstead - Hammersmith - Chiswick - Ealing Broadway - Highgate - Brondesbury Park Answers ## Straight answers,before you call. Still not sure? Call Jay directly on 07460 046234. How much does a boiler installation cost?Every install is quoted on a fixed-price basis after a free survey. Combi swaps, conversions and system boilers with cylinders are very different jobs, you'll have an itemised written quote back inside the same week. How long does a boiler swap take?A straight combi swap is typically 1-2 days. A conversion from conventional to combi is 3-5 days. Full central heating installs run 5-10 days depending on property size. Do you power-flush the system?Yes. Every boiler swap includes a BS 7593-compliant power-flush and inhibitor dose. This is a manufacturer warranty requirement. Do you register the warranty for me?Yes. Manufacturer warranty registration is done on your behalf as part of the handover, along with the benchmark record and Gas Safe certificate. What controls do you install?We install weather-compensating controls and smart thermostats (Hive, Nest, Tado, Wiser) depending on your preference and boiler compatibility. Do you install underfloor heating?Yes, hydronic UFH for extensions and open-plan spaces, electric UFH mats for bathroom retrofits under tile. What insurance do you carry?£1,000,000 public and employer's liability insurance, plus Gas Safe registration. What guarantee do you offer?12-month workmanship guarantee in writing, sitting on top of the manufacturer warranty (typically 7-10 years on the boiler itself). Which areas do you cover?North and West London, St John's Wood, Paddington, Kensington, Bayswater, Regents Park, Hampstead, Hammersmith, Chiswick and Ealing. Book your free survey ## Ready to price your heating installationsthe honest way? One site visit. One fixed-price written quote back the same week. No pressure, no hard sell, just the number and the plan to deliver it. Request your free estimate 07460 046234 - Free local survey - Written quote the same week - Fixed-price, staged payments - 12-month workmanship guarantee Related services ## Other work we deliver View all services Service ### Plumbing Installations Learn more Service ### Bathroom Installation Learn more Service ### Full Renovations Learn more Premium bathroom, kitchen and full-property renovations across North & West London. Founded by Jay Reid, 15 years on the tools, PRINCE2 project management, Gas Safe registered. 07460 046234 office@refurbsquad.co.uk 124 City Road, London EC1V 2NX 5.0★ on Google, read our reviewsLeave us a Google review - Services Bathroom Installation - Kitchen Installation - House Extensions - Loft Conversions - Full Renovations - Commercial Fit-Out Service Areas - St John's Wood - Paddington - Kensington - Bayswater - Regents Park - Hampstead - Hammersmith - Chiswick - Ealing Broadway - Highgate - Brondesbury Park Hours - Mon-Fri · 8:00-16:00 - Saturday · 9:00-13:00 - Sunday · Closed - 24 Hrs on the LineAccredited - Gas Safe Registered - Constructionline Gold - CHAS Accredited - £1M Public Liability © 2026 Refurb Squad Ltd. Registered in England. All rights reserved. Privacy PolicyTerms & ConditionsCookie PolicyContact Call JayRequest Estimate