A new combi boiler, without the guesswork.
See what you should pay, work out the right size, decode that fault code — then get a quote from one local Gas Safe installer. Not ten companies ringing you at dinner.
- ✓ Free, no-obligation quote
- ✓ Your details go to one installer
- ✓ Typical combi swap £1,800–£3,000
- ✓ Honest repair-or-replace advice
Free tools
How it works
We're paid by the installer for the introduction, so the service is free to you. We only work with Gas Safe registered engineers.
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1
Tell us about your home
Postcode, current boiler and bathrooms. About a minute.
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2
We match one installer
A local Gas Safe engineer who covers your postcode. We tell you who straight away.
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3
Get a fixed price
They survey (often by photo or video) and give you a fixed quote. No obligation.
Guides
All guides →CORGI Registered
Read →How much does a new combi boiler cost in 2026?
A like-for-like combi swap typically costs £1,800–£3,000 fitted outside London. Here is what changes the price — and a calculator to estimate yours.
Read →What size combi boiler do I need?
For a combi, size is about hot water demand, not radiators. Bathrooms and your mains water flow matter most.
Read →Combi vs system boiler: which is right for you?
Combis save space and money for most homes. System boilers win when several people need hot water at the same time.
Read →