New boiler installation cost in HP12 from £1,539

Install a new boiler cost in HP12 - Sort by rates or availability

Cheapest gas heating engineers to install a new boiler in HP12

Estimates for install a new boiler near HP12

New combi boilers cost from around £650 to £2,500 depending on the manufacturer and kW output.

Comparing HP12 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 HP12.

^*Prices are estimates based on the hourly or day rate of heating engineers in HP12, UK boiler offers and materials.

Price range for Combi Boilers

Low

£643

Glow-Worm Compact 28kW Combi Boiler

Middle

£1,755

Vaillant ecoTEC Plus 836 36kW Combi Boiler

High

£1,973

Vaillant EcoTEC Plus 840 40kW Combi Boiler

"New boiler installation (reliable brand such as Vaillant, Alpha, Veissmann), 30 kw to replace an existing combi boiler. Quote for supply of boiler, full installation including flue cementing (boiler is in loft space mounted on an outside wall)." - HP13, job posted 05/10/25

"New boiler installation Replace combi" - BUCKINGHAMSHIRE, job posted 08/05/24

Get heating engineer rates instantly

Get heating engineer rates instantly (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Install A New Boiler near High Wycombe	£67	£374
Install A New Boiler near Wycombe	£68	£384
Install A New Boiler near Hazlemere	£68	£382
Install A New Boiler near Maidenhead	£66	£364
Install A New Boiler near Chesham	£70	£362
Install A New Boiler near Gerrards Cross	£69	£367
Install A New Boiler near Slough	£68	£371
Install A New Boiler near Windsor & Maidenhead	£69	£369
Install A New Boiler near Windsor	£69	£372
Install A New Boiler near Rickmansworth	£68	£350

Estimates for common heating engineer jobs in HP12;

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.