From £1,721
Relax... you have found a reliable heating engineer in SL3. Plumbing & More is a friendly and reliable company based in SL3 who consider no job as ...
From £1,499
Need a Heating Engineer in SL3? Uptempo LTD has been helping local clients (20 mile radius) with their heating engineering jobs for many years. Get...
From £1,603
Reliable and experienced heating engineers with competitive rates and good at keeping within budget. Happy to provide examples of heating engineeri...
From £1,611
Need to find a Heating Engineer near you for all your heating engineering work?
Eco Green Grant provides a local, trusted heating engineeri...
From £1,533
Relax... you have found a reliable heating engineer in SL3. W Lewis is a friendly and reliable company based in SL3 who consider no job as too big ...
From £1,569
RMR GAS & HEATING SERVICES LTD is an established and experienced local heating engineer in SL3. Please contact us for a free, no obligation quote a...
From £1,671
Get a Heating Engineer in SL3 who you can trust. C & M Plumbing and Heating ltd provide friendly and reliable heating engineering services to the S...
From £1,609
Need a Heating Engineer in SL3? Saviour Energy Solutions Ltd has been helping local clients (20 mile radius) with their heating engineering jobs fo...

New combi boilers cost from around £650 to £2,500 depending on the manufacturer and kW output.
Comparing SL3 heating engineers estimates for combi or system boiler upgrade gives you a good idea of prices but the best way to compare costs is to get quotes.
What to do - Get boiler installation quotes by posting your job on HaMuch and we will send it to your local heating engineers in SL3.
*Prices are estimates based on the hourly or day rate of heating engineers in SL3, UK boiler offers and materials.
"New system boiler installation. There is a tank from the old boiler there. Old combi boiler is there." - SL3, job posted 01/01/70
"New boiler installation" - SL3, job posted 02/04/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install A New Boiler near Slough | £68 | £370 |
| Install A New Boiler near Windsor & Maidenhead | £68 | £368 |
| Install A New Boiler near Windsor | £69 | £372 |
| Install A New Boiler near Staines-upon-Thames | £68 | £349 |
| Install A New Boiler near Egham | £71 | £356 |
| Install A New Boiler near Hillingdon | £64 | £329 |
| Install A New Boiler near Gerrards Cross | £68 | £364 |
| Install A New Boiler near Maidenhead | £66 | £365 |
| Install A New Boiler near Ascot | £65 | £337 |
| Install A New Boiler near Sunbury-on-Thames | £65 | £348 |
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 - £1,126

Service a gas fire - £192

Replace a heating programmer - £219

Powerflush - £552 Visit

Heating oil tank installation - £1,209

Replace an oil boiler - £2,496

Install a new boiler - £1,516

Install heated skirting boards - £1,298

LPG boiler installation - £1,434

Install hydrogen boiler - £1,196

Install gas fire - £758

Install chimney liner - £485

Install biomass boiler - £5,197

Install a ground source heat pump - £14,297

Fix a boiler fault code - £128

Fit smart heating controls - £263

Fit a magnetic filter - £170

Fit a radiator - £192

Connect a gas cooker or hob - £204

Boiler service - £94

Boiler repair - £148

Boiler Insurance - £138 per month

Install an air source heat pump - £6,215