New Boiler Installation — Compare Local Gas Safe Fitters
New combi boiler installation by an engineer
Replacing your boiler is a big decision — and getting the right engineer matters just as much as the right boiler. Whether you need a combi, system or heat-only boiler, BoilerFinder UK lists Gas Safe registered installers across the UK.
When to consider a new boiler
- Your boiler is over 10–12 years old
- Repairs are becoming frequent or expensive
- Your energy bills keep rising
- Your boiler is a non-condensing, inefficient model
- You're extending your home or adding bathrooms
What a good installation includes
A quality installer will recommend the right size and type of boiler for your home, give you a clear fixed quote, remove the old unit, fit the new boiler and controls, and register the installation with Gas Safe and the manufacturer to activate your warranty.
How much does a new boiler cost in the UK?
A new boiler supplied and fitted typically costs £1,800–£4,000+, depending on the boiler type, brand, and how complex the installation is (for example, moving the boiler or converting from a conventional system to a combi). A modern A-rated boiler can noticeably cut your heating bills.
Watch: the boiler installation process
Watch: the process of installing a new boiler in the UK
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Frequently asked questions
Which boiler is best for my home? A combi suits smaller homes with one bathroom; system or heat-only boilers suit larger homes with higher hot water demand. Your installer will advise. How long does installation take? A straightforward swap takes about a day; a system conversion can take 2–3 days.
Find a boiler installer in your area — choose your city from the menu above.