Boiler Price Guide

There are so many different types of boiler out there and they vary hugely in cost, so it’s not surprising if you’re left confused. It’s tricky to know whether to choose a well-known brand for more money or choose a cheaper boiler.
We’ve put together this boiler price guide to help you work out how much you might need for a new boiler.

General advice

Do your research

Do some research on different types of boilers and decide which one suits your home best. There are combi boilers, system boilers and conventional boilers to choose from.
Once you’ve decided on the type of boiler you need, you can have a look at the different brands. Worcester Bosch, Valliant and Glowworm are popular brands of boiler.

Set a budget

After you’ve done some research, set a budget and keep it in mind when you get a range of quotes. That way you’ll be able to compare quotes against what you can afford.


Installation costs

Boiler costs depend on the make, model and type of boiler you want. It will also depend on how straightforward the installation is. Here are some of the approximate installation costs for typical boiler installs:

  • Replacing a condensing combi boiler in the same position as the old one: £540-660
  • Swapping a non-condensing boiler with a condensing one in the same position as the old one: £640-770
  • Replacing a new condensing boiler in a different place and adding radiator valves and controls: £1,140-1,440
Boiler costs

Boiler prices vary depending on the make, so it’s difficult to say exactly how much you could pay. But here is a rough guide to what you can typically expect to pay for different types of boiler:

Boiler type Price range
Combi £499-825
Conventional £492-3,600
System £521-910

Which? constructed this table from the highest and lowest price of a boiler of each type from all the boiler manufacturers in the UK with a greater than 1% market share. Prices correct as of May 2017.

Savings on gas bills

A new boiler is a significant investment, so you need to ensure that you’re aware of the costs involved. It’s worth remembering that you’ll also save money if you update an old boiler with a new A-rated one:

Old boiler rating Savings per year
G (<70%) £210
F (70%-74%) £145
E (74%-78%) £125
D (78%-82%) £110

These savings are based on a semi-detached house replacing an old boiler with a programmer, room thermostat and thermostatic radiator valves (TRVs).
If you’re looking to get a new boiler, make sure you get a range of quotes. Simply fill in the form below and we’ll put you in touch with up to 4 Gas Safe-registered engineers who will be able to give you a price for the job.