Boiler Replacement Cost
A like-for-like combi boiler replacement typically costs £2,500–£4,000 supplied and installed; changing system type costs more. Gas engineers who do boiler installations
£2,500–£4,000
Typical UK range
Aug 2026
Last updated
What each option costs
| Type | 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 you need done and we'll tell you the price for your home.
on your first booking
What affects the price
- Boiler type and output
- Whether the boiler moves
- Pipework, cylinder, controls, and flue changes
What's included
- Boiler supply and fitting as quoted
- Commissioning by a suitably registered installer
Good to know
Before you book, read how to check a gas engineer is Gas Safe registered.
How to pay less
- Compare itemised like-for-like quotes
- Confirm controls, filters, disposal, and certification are included
Questions people ask
What needs doing?
Tell us what you need done. We'll tell you the price, then find a local gas engineer to do the job.