Cost guide
How much does a Boiler replacement cost?
Thinking about a new boiler? It's a big decision, but a modern, efficient condensing boiler can make your home much warmer and save you money on energy bills in the long run. At CertifySpace, we make finding the right solution simple. You can compare free quotes from trusted, verified UK firms, ensuring you get a great deal for a professional installation.
Typical price
£2,200 to £3,000
What changes the price
Boiler Type and Brand
Different boiler types and brands come with varying price tags and features.
Installation Complexity
Straightforward swaps are cheaper than moving your boiler or upgrading your system.
Property Size
Larger homes often need more powerful, more expensive boilers to heat them effectively.
Flue Location
Difficult or extended flue routes can add extra labour costs to the job.
System Upgrades
If you need new pipework, radiators, or controls, this will affect the total price.
Installer Fees
Labour costs vary between firms and reflect their experience and service.
Prices by region
| Region | Low | Typical | High |
|---|---|---|---|
| London | £2,500 | £3,100 | £3,800 |
| South East | £2,400 | £2,900 | £3,600 |
| South West | £2,300 | £2,800 | £3,400 |
| East of England | £2,300 | £2,800 | £3,400 |
| Midlands | £2,200 | £2,600 | £3,200 |
| North West | £2,200 | £2,500 | £3,100 |
| North East and Yorkshire | £2,100 | £2,400 | £3,000 |
| Scotland and Wales | £2,200 | £2,500 | £3,100 |
Questions people ask
How long does a boiler replacement take?
Most standard boiler replacements can be completed within one to two days. More complex jobs, like converting your system, might take a little longer.
Will my heating system need flushing?
Yes, it is highly recommended to power flush your heating system when installing a new boiler. This removes sludge and debris, improving efficiency and protecting your new boiler.
What type of boiler should I choose?
Your installer will help you choose between a combi, system, or conventional boiler, depending on your home's hot water needs and existing setup. Each type has its own advantages.
Do I need a new thermostat with my boiler?
Upgrading your thermostat, especially to a smart thermostat, is a great idea for better control and energy savings. Many new boilers are compatible with modern control systems.
What happens to my old boiler?
Your installer will usually disconnect and remove your old boiler as part of the service. They will also dispose of it responsibly and safely for you.
How can I get the best boiler replacement deal?
Comparing multiple quotes from different verified installers through CertifySpace is the best way to ensure you get competitive pricing and excellent service for your new boiler.