Range from the cheapest replacement of an oil boiler £740 (John Small & Co Ltd based in WD25) to the dearest replacement of an oil boiler £972 (A Foster based in WD3).
From £2,654
BROKEN BOILER? EXPENSIVE CALL OUTS? BEEN ADVISED A NEW BOILER AND YOUR STILL IN DOUBT THEN GIVE US A SHOUT!! Honest advise,reliable service, qualit...
From £2,522
Experienced heating engineer ready to quote for your work. Plumber Expert is the best heating engineer in WD17. No obligation free quotes and many ...
From £2,526
Trusted and professional heating engineer in WD17. Experienced in all heating engineering work and keeping within budget and on quote. Watford Heat...
From £2,500
Member since September 2025
Relax... you have found a reliable heating engineer in WD17. E U Plumbing Ltd is a friendly and reliable company based in WD17 who consider no job ...
From £2,522
Plumbing & Gas is an established heating engineering business in WD17. We come highly recommended and provide competitive quotes for your work.
...From £2,614
Timothy Stanford is a one-stop solution for all your heating engineering needs. Establish over 10 years ago and covering 10 miles around WD17 we pr...
From £2,670
Get a Heating Engineer in WD17 who you can trust. A Foster provide friendly and reliable heating engineering services to the WD17 area, covering a ...
From £2,514
Trusted and professional heating engineer in WD17. Experienced in all heating engineering work and keeping within budget and on quote. Solardoctor ...
From £2,572
K R Thackham Plumbing & Heating is an established heating engineering business in WD17. We come highly recommended and provide competitive quotes f...
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 WD17 by posting a job with HaMuch and we will send it to heating engineers in WD17.
*Prices are estimates based on the hourly or day rate of heating engineers in WD17, 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 - £1,183
Service a gas fire - £173
Replace a heating programmer - £213
Powerflush - £508 Visit
Heating oil tank installation - £1,238
Replace an oil boiler - £2,553
Install a new boiler - £1,573
Install heated skirting boards - £1,355
LPG boiler installation - £1,491
Install hydrogen boiler - £1,310
Install gas fire - £787
Install chimney liner - £514
Install biomass boiler - £5,283
Install a ground source heat pump - £14,727
Fix a boiler fault code - £116
Fit smart heating controls - £251
Fit a magnetic filter - £158
Fit a radiator - £179
Connect a gas cooker or hob - £185
Boiler service - £88
Boiler repair - £136
Boiler Insurance - £126 per month
Install an air source heat pump - £6,272
