Get a quote

Find an approved installer near you for a no obligation installation quote

Replacement Boilers

Boiler technology has changed significantly over the last 10 years; if your boiler is older, it might be a good time to replace it with one that is more efficient. A new high efficiency, or condensing, boiler will lower your heating bills and also reduce your impact on the environment.

Since changes to the Building Regulations in 2005, all new or replacement gas boilers installed in the UK have to be condensing boilers. Condensing boilers work by recovering more heat from flue gases, which is lost into the atmosphere with old, non-condensing boilers. This means that condensing boilers convert much more of the gas they burn, over 90%, into heating and hot water, making them much more efficient, saving you money on your fuel bills, and reducing carbon dioxide emissions.

The actual cost of a replacement boiler will vary according to where you buy it and who fits it. The typical cost of a fully installed, Energy Saving Trust Recommended high efficiency boiler is around £2,000. If you currently have a SEDBUK (2005) Band G boiler - which is likely if it is over 10 years old - you could see a saving of £310 per year, according to the Energy Saving Trust.

Product Selector

Every home and installation is unique, so our interactive product selector can help you select a suitable replacement boiler for your home, based on a number of factors including the size and type of your property, as well as your specific hot water and heating needs.

Find an Installer

We advise that you contact a qualified Gas Safe registered installer to help you to decide on the most appropriate new boiler for your home. Remember to ask to see proof of registration before your installer starts work. You can locate your nearest Gas Safe registered installer using our 'Find an installer' tool.

Find a Baxi Installer

For more information

Baxi has a wide range of high efficiency boilers that may offer a suitable replacement. To find the perfect boiler for your home, or for more information on the types of boilers we offer, check out these pages:

Find a boiler
Find out which Baxi product is best for you

If you're thinking of getting a Baxi but aren't sure what type of product is best for you, let us help you decide.

Use the find a boiler tool
Find an Installer
Find an Installer today

With over 700 installers registered across the UK, Baxi's Find an Installer tool shows you local businesses that can work on your heating system.

Find a local installer