Range from the cheapest replacement of an oil boiler £664 (Plumbrite123 based in W12) to the dearest replacement of an oil boiler £1,082 (Checkmate Gas based in W12).
Worcester Bosch Greenstar Heatslave II External 25/32 Combination Oil Boiler
From £2,362
Dunstable, W12
Need to find a Heating Engineer near you for all your heating engineering work?
Plumbrite123 provides a local, trusted heating engineering ...
From £2,658
Warmello Property Services prides in delivering an excellent heating engineering service and value for money in W12 and the surrounding areas. Our...
From £2,648
I am very reliable, honest and trustworthy. I enjoy solving difficult problems. I have over 20 years plumbing and heating experience. No job too bi...
From £2,780
Checkmate Gas are based in W12, we have over 10 years experience helping landlords, architects and home owners all over London with their h...
From £2,526
Trusted and professional heating engineer in W12. Experienced in all heating engineering work and keeping within budget and on quote. Upperplumbers...
From £2,648
National Plumbers is a trusted heating engineer serving customers in W12 and the surrounding area. Contact us to today to get a competitive quote f...
From £2,500
Member since August 2026
London, W12
Davidplumbing co.ltd specialists leak repair and general plumbing no job too big or small
From £2,574
Staunch and Flow is a small, experienced, and cost-effective London-based plumbing/heating engineering firm. We specialise in kitchen and bathroom ...
From £2,590
Need to find a Heating Engineer near you for all your heating engineering work?
Action Services UK provides a local, trusted heating engine...
From £2,638
Need to find a Heating Engineer near you for all your heating engineering work?
Gas Fitter provides a local, trusted heating engineering se...
Selected new oil boilers cost from £1,700 to £4,600 and depend on the manufacturer and kW output.
Comparing heating engineers estimates for replacing an oil boiler 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 to replace an oil boiler in W12 by posting a job with HaMuch and we will send it to heating engineers in W12.
*Prices are estimates based on the hourly or day rate of heating engineers in W12, oil boiler offers and materials.
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 - £1,222
Service a gas fire - £207
Replace a heating programmer - £224
Powerflush - £585 Visit
Heating oil tank installation - £1,257
Replace an oil boiler - £2,592
Install a new boiler - £1,612
Cost to move / relocate boiler - £1,042
Install heated skirting boards - £1,394
LPG boiler installation - £1,530
Install hydrogen boiler - £1,389
Install gas fire - £806
Install chimney liner - £533
Install biomass boiler - £5,342
Install a ground source heat pump - £15,021
Fix a boiler fault code - £138
Fit smart heating controls - £273
Fit a magnetic filter - £180
Fit a radiator - £202
Connect a gas cooker or hob - £219
Boiler service - £99
Boiler repair - £158
Boiler Insurance - £148 per month
Install an air source heat pump - £6,311
