Boiler installation cost
What a new boiler costs fully installed, what the price includes and the things that can change it.
Our fixed installed prices
Fixed, fully installed prices for a like-for-like replacement start from:
- Combi boiler: from £2,049
- System boiler: from £2,599
- Regular boiler: from £2,779
The total depends on the boiler you choose, from the models and output bands listed online. See your fixed price online in about a minute. These are the totals payable by the customer.
What is included
Every price includes:
- New boiler and flue kit
- All materials and installation
- Magnetic system filter and system flush (a limescale reducer on combi boilers)
- Commissioning and Building Regulations notification
- Removal and disposal of your old boiler
Warranty length varies by model.
What can change the price
- Changing the type of boiler or system, for example regular to combi
- Moving the boiler, or a new flue route
- A gas pipe that needs upgrading to supply the new boiler
- A different or larger boiler for a bigger home
- Extra controls, radiators or a hot water cylinder
- Access, such as flats and long flue runs
Anything beyond a like-for-like replacement is assessed at the free survey and priced before you agree. See what affects the cost of a new boiler.
Cost calculator
The online boiler price tool works as a calculator: answer a few questions about your home and it shows the fixed price for each boiler.
Compare quotes properly
Compare the boiler model, what is included, the warranty and who is responsible for aftercare, not just the headline number. Use our quote checklist.
Common questions
How much does it cost to install a combi boiler?
Combi boilers start from £2,049 fully installed, including a magnetic filter, system flush, wireless thermostat and removal of the old boiler.
Is there a separate labour charge?
No. The online prices are totals for a like-for-like replacement, including materials and installation.
Is the price a quotation?
It is a fixed price for a like-for-like replacement. A free survey confirms your home needs nothing extra.