From £130
Trusted and professional heating engineer in GU21. Experienced in all heating engineering work and keeping within budget and on quote. Ark Heating ...
From £120
Get a Heating Engineer in GU21 who you can trust. Sub Plumbing & Heating Solutions provide friendly and reliable heating engineering services to th...
From £125
Lambert Heating & Renewables Ltd is a Carshalton-based heating company providing boiler servicing, boiler repairs and fault finding, new boiler ins...
From £120
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 £97
Experienced heating engineer ready to quote for your work. J&J Building Solutions is the best heating engineer in GU21. No obligation free quotes a...
From £97
This business has not added a description yet.
From £89
Trusted and professional heating engineer in GU21. Experienced in all heating engineering work and keeping within budget and on quote. DM Plumbing ...
From £76
We have been trading for a little over 20 years.
We are based in Ash and work mainly in the Aldershot, Farnham, Guidford, Godalming, Cam...
From £90
Member since May 2021
We always offer a professional and affordable service to our customers, where every customer is happy!
Check out our reviews! www.osmanplumbing...From £88
Member since June 2026
Giro heating and plumbing is an established and experienced local heating engineer in GU21. Please contact us for a free, no obligation quote and ...

In GU21, boiler services range from the cheapest of £76 (A & A Services based in GU12) to the dearest of £130 (Ark Heating Solutions based in GU35)
Comparing heating engineers estimates for a boiler service 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 - Get rates and quotes for a boiler service by posting your job to heating engineers in GU21
"Boiler service" - GU22, job posted 09/07/26
"Boiler service cost" - GU21, job posted 10/05/24
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Boiler Service near Woking | £71 | £361 |
| Boiler Service near New Haw | £71 | £368 |
| Boiler Service near Guildford | £68 | £366 |
| Boiler Service near Ascot | £65 | £337 |
| Boiler Service near Camberley | £70 | £353 |
| Boiler Service near Ash Vale | £66 | £339 |
| Boiler Service near Egham | £71 | £357 |
| Boiler Service near Farnborough | £68 | £350 |
| Boiler Service near Staines-upon-Thames | £68 | £349 |
| Boiler Service near Walton-on-Thames | £69 | £355 |
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 - £1,265

Service a gas fire - £220

Replace a heating programmer - £228

Powerflush - £615 Visit

Heating oil tank installation - £1,279

Replace an oil boiler - £2,635

Install a new boiler - £1,655

Cost to move / relocate boiler - £1,106

Install heated skirting boards - £1,437

LPG boiler installation - £1,573

Install hydrogen boiler - £1,474

Install gas fire - £828

Install chimney liner - £555

Install biomass boiler - £5,406

Install a ground source heat pump - £15,342

Fix a boiler fault code - £146

Fit smart heating controls - £281

Fit a magnetic filter - £188

Fit a radiator - £210

Connect a gas cooker or hob - £232

Boiler service - £103

Boiler repair - £166

Boiler Insurance - £156 per month

Install an air source heat pump - £6,354