Range from the cheapest replacement of an oil boiler £800 (Qual-Serve Plumbing and Heating Services based in WD23) to the dearest replacement of an oil boiler £956 (786 HEATSAFE SOLUTIONS based in WD18).
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 £2,500
Member since September 2025
Relax... you have found a reliable heating engineer in Watford. E U Plumbing Ltd is a friendly and reliable company based in Watford who consider n...
From £2,522
Experienced heating engineer ready to quote for your work. Plumber Expert is the best heating engineer in Watford. No obligation free quotes and ma...
From £2,566
Flame Fx Ltd is a trusted heating engineer serving customers in Watford and the surrounding area. Contact us to today to get a competitive quote fo...
From £2,608
Established in 2012, with over 30 years of industry experience, Gateville Group has a deep commitment to professionalism, quality and integrity.\n\...
From £2,638
Sustain Homes Limited is a trusted heating engineer serving customers in Watford and the surrounding area. Contact us to today to get a competitive...
From £2,498
Member since August 2026
Honest and reliable Tradesman
Good communication throughout the work
From £2,592
Ayako Ltd is an established and experienced local heating engineer in Watford. Please contact us for a free, no obligation quote and competitive ra...
From £2,612
Trusted and professional heating engineer in Watford. Experienced in all heating engineering work and keeping within budget and on quote. Xpert Hea...
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 Watford we...
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 Watford by posting a job with HaMuch and we will send it to heating engineers in Watford.
*Prices are estimates based on the hourly or day rate of heating engineers in Watford, oil boiler offers and materials.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Replace An Oil Boiler near Watford | £67 | £345 |
| Replace An Oil Boiler near Bushey | £67 | £343 |
| Replace An Oil Boiler near Rickmansworth | £68 | £349 |
| Replace An Oil Boiler near Borehamwood | £66 | £348 |
| Replace An Oil Boiler near Harrow | £67 | £343 |
| Replace An Oil Boiler near Hillingdon | £64 | £329 |
| Replace An Oil Boiler near Gerrards Cross | £68 | £364 |
| Replace An Oil Boiler near St Albans | £67 | £362 |
| Replace An Oil Boiler near Dacorum | £66 | £344 |
| Replace An Oil Boiler near Hemel Hempstead | £65 | £344 |
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 - £1,210
Service a gas fire - £195
Replace a heating programmer - £220
Powerflush - £557 Visit
Heating oil tank installation - £1,251
Replace an oil boiler - £2,580
Install a new boiler - £1,600
Cost to move / relocate boiler - £1,024
Install heated skirting boards - £1,382
LPG boiler installation - £1,518
Install hydrogen boiler - £1,365
Install gas fire - £800
Install chimney liner - £527
Install biomass boiler - £5,324
Install a ground source heat pump - £14,931
Fix a boiler fault code - £130
Fit smart heating controls - £265
Fit a magnetic filter - £172
Fit a radiator - £194
Connect a gas cooker or hob - £207
Boiler service - £95
Boiler repair - £150
Boiler Insurance - £140 per month
Install an air source heat pump - £6,299
