A qualified, tidy install from a Worcester Bosch Accredited engineer, fixed-price quote before any spanner touches your pipework, and a 2-year workmanship guarantee sitting on top of up to 12 years' manufacturer cover.
Free survey · Free fixed-price quote · 267+ five-star reviews
A full boiler installation, new appliance supplied and fitted, system flushed, controls set up, gas and water tested and commissioned to manufacturer specification. Everything registered with Gas Safe and the manufacturer so your warranty starts on the day we leave.
Homeowners and landlords in Ashford, Surrey and West London whose current boiler is unreliable, inefficient, out of warranty, or simply too old to be economical to keep repairing. Also new-build extensions and full heating overhauls.
Any time you're paying to keep patching an ageing boiler; when your energy bills are climbing without explanation; when your existing appliance is over 10 years old; when you're extending, converting a loft, or moving from a system with a hot water cylinder to a combi.
A boiler swap is the single biggest gas job most homes ever have done. Poor pipe sizing, missed flushes, wrong flue routing or an unregistered install all cost thousands to put right later. A Gas Safe engineer who fits these every week gets it right first time, and the paperwork is in your name from day one.
The mistakes that turn small jobs into big bills, and how a qualified engineer keeps them from happening.
Old boilers can run at 70% efficiency or lower. Every winter you delay, more of your gas bill goes up the flue instead of into your radiators.
Once manufacturer cover lapses, a single major failure, heat exchanger, PCB, fan, can cost more than a straight replacement. Repairing repeatedly is almost always worse value than replacing.
Boilers fail when they're worked hardest, the first cold week of the year. That's also when every engineer in the region is booked solid and emergency call-out prices spike.
The cheapest installer usually cuts the system flush, uses undersized pipework, or skips the magnetic filter. You save £200 up front and lose the boiler's warranty within 18 months.
We visit, look at your existing system, gas supply and hot water demand, and talk through what you actually need, combi, system or regular, and what size.
You get a clear scope and a fixed price. No day-rate surprises, no 'we hit a problem so it's an extra £600'.
Deposit secures the date and the appliance. Balance is only due on completion.
Old unit out, new boiler in, full power flush or chemical flush as specified, magnetic filter fitted, controls configured, gas rate and flue readings recorded.
Gas Safe notification, Building Regulations compliance certificate and manufacturer warranty registered in your name. We walk you through the controls before we leave.
The number on your quote is the number you pay. Deposit + balance, nothing else.
Up to 12 years on Worcester Bosch when installed by an Accredited engineer, minimum 5 years across our supported ranges.
Modern A-rated condensing boilers recover heat that older non-condensing units simply vent to atmosphere.
Gas Safe notification and Building Regulations certificate, the documents your solicitor and future buyer will actually ask for.
Fresh flush and magnetic filter mean quieter radiators, faster warm-up, and less pump wear over the life of the boiler.
Accredited & trusted by the brands we install
Materials, methods and variations, the specifics that separate a proper install from a rushed one.
Combi boilers for flats and homes with one or two bathrooms where space and instant hot water matter. System boilers with an unvented cylinder for larger family homes running multiple showers at once. Regular (heat-only) boilers where an existing loft tank and cylinder are staying. We'll spec the right type for your gas supply, water pressure and demand, not just whatever is on the van.
Worcester Bosch Accredited Installer, Vaillant Advance Installer, and Glow-worm Approved Installer. Accreditation matters because it unlocks the longest available warranties, up to 12 years on qualifying Worcester Bosch models, and gives you direct manufacturer support if you ever need it.
On straight combi swaps where the existing pipework and flue position are suitable, our Glow-worm Compact 24c supply-and-fit is priced from £1,895, including a 5-year manufacturer warranty, standard flue kit, system flush, magnetic filter, controls and full commissioning. Larger properties, unvented conversions or complex reroutes are priced separately after a free survey.
Every install includes a system flush and a magnetic filter. Both are conditions of most extended manufacturer warranties, miss either and your cover can be voided. We record it on the paperwork so you're protected if you ever need to claim.
For landlords we can bundle the install with a fresh Gas Safety (CP12) certificate and any tenant hand-over paperwork you need. All work is Gas Safe notified in your name, which is what letting agents and insurers need to see.
Our Glow-worm Compact 24c combi supply-and-fit is priced from £1,895 including a 5-year warranty, standard flue, filter and flush. Larger properties, Worcester Bosch or Vaillant models, and system-to-combi conversions are priced individually, always as a fixed quote after a free survey.
A straight combi swap is usually a single day. A system-to-combi conversion or an unvented cylinder job is typically 2 days. We'll give you the exact expected duration on the quote so you can plan around it.
You get our 2-year workmanship guarantee on top of the manufacturer warranty, 5 years minimum on our supported ranges, 10 years standard on many Worcester Bosch and Vaillant models, and up to 12 years on qualifying Worcester Bosch installations.
Yes. Every install is notified to Gas Safe and registered under Building Regulations. Your certificate arrives by post and email within days.
50% deposit to secure the date and the appliance, balance on completion. We take card, bank transfer or cash.
Yes, old appliance and all packaging leave with us on the same day. You get a clean site back.
Yes, subject to flue routing and freeholder/landlord permission where relevant. We'll flag anything unusual at the survey stage.
If a repair isn't economical we can usually get a new boiler in within days. Same-day emergency call-out is available for the initial visit.
A selection of real installs across Ashford, Surrey and West London, no stock photography.
Speak directly to Calvin, 24 years on the tools, no sales scripts, honest advice.
Same-day emergency response · Free call-outs
