From £210
Reliable and experienced heating engineers with competitive rates and good at keeping within budget. Happy to provide examples of heating engineeri...
From £160
Multivega+ Heating Services prides in delivering an excellent heating engineering service and value for money in SW20 and the surrounding areas. O...
From £210
Lambert Heating & Renewables Ltd is a Carshalton-based heating company providing boiler servicing, boiler repairs and fault finding, new boiler ins...
From £200
Member since September 2026
24/7/365 Gas and Heating, plumbing Services: We undertake complete Gold standard domestic Gas, plumbing and central heating service, repairs a...
From £154
Experienced heating engineer ready to quote for your work. J&J Building Solutions is the best heating engineer in SW20. No obligation free quotes a...
From £152
Fast response for all your heating engineering needs around SW20
JM HEATING AND PLUMBING SERVICES LTD are an establis...
From £162
If you are looking for a SW20 heating engineer and you need something replaced, fitted, or fixed, contact Majestic Building Maintenance Ltd today. ...
From £166
Fast response for all your heating engineering needs around SW20
East London Gas & Heating are an established and exp...
From £168
Get a Heating Engineer in SW20 who you can trust. Madyson Global Trade Ltd provide friendly and reliable heating engineering services to the SW20 a...
From £150
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...

Comparing gas heating engineer estimates for boiler repairs in SW20 gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - If your boiler is playing up, quickly get rates and quotes for boiler repairs by clicking "Get quotes" to post your job to heating engineers in SW20
"(Traditional system) boiler will only heat water when heating is also on. Zone valve buzzes/is stuck/broken, needs replacing so that boiler will heat water without having heating on as well" - SW19, job posted 01/01/70
With energy prices rising, it’s important to do all you can to keep your bills as low as possible. And if you’ve got an old boiler, it could be wasting your money. But how much will it set you back to replace your boiler? We’ve got the answer plus costs for other heating sources like ground and air source heat pumps in our cost guides.

Fit underfloor heating - £1,510

Service a gas fire - £230

Replace a heating programmer - £232

Powerflush - £639 Visit

Heating oil tank installation - £1,401

Replace an oil boiler - £2,880

Install a new boiler - £1,900

Cost to move / relocate boiler - £1,473

Install heated skirting boards - £1,682

LPG boiler installation - £1,818

Install hydrogen boiler - £1,964

Install gas fire - £950

Install chimney liner - £677

Install biomass boiler - £5,773

Install a ground source heat pump - £17,177

Fix a boiler fault code - £153

Fit smart heating controls - £288

Fit a magnetic filter - £195

Fit a radiator - £217

Connect a gas cooker or hob - £242

Boiler service - £107

Boiler repair - £173

Boiler Insurance - £163 per month

Install an air source heat pump - £6,599