Boiler Replacement Cost
£2,500–£4,000
typical UK range
Updated
A like-for-like combi boiler replacement typically costs £2,500–£4,000 supplied and installed; changing system type costs more.
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How much does each option cost?
| Type / scope | Typical cost | Notes |
|---|---|---|
| Like-for-like combi replacementSupply and installation | £2,500–£4,000 | Supply and installation |
What would yours cost?
Those are the usual ranges. Tell us what's wrong and we'll tell you the price for your home.
What affects the price?
- Boiler type and output
- Whether the boiler moves
- Pipework, cylinder, controls, and flue changes
What's included in the price?
- Boiler supply and fitting as quoted
- Commissioning by a suitably registered installer
How long does it take?
Checkatrade says a simple installation typically takes four to six hours; system changes take longer.
Do I need one?
Replace a boiler when a qualified engineer confirms replacement is safer or better value than repair.
How do you avoid overpaying?
- Compare itemised like-for-like quotes
- Confirm controls, filters, disposal, and certification are included
Ready to get it done?
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Frequently asked questions
We’re happy to answer all your questions.
Sources & References
Before you book, read how to check a gas engineer is Gas Safe registered.
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