Boiler brands rated British Gas

British Gas

UK-based British Gas is the UK's largest energy supplier, and also installs boilers. As well as installing branded boilers, it sells its own models, including the British Gas 330+ and the British Gas 5 series range of combi boilers.

British Gas gas boilers

The British Gas 330+ heat-only boiler has a built-in energy use indicator, which enables you to monitor gas consumption and compare trends over a seven-day period. Unusually it is a 'one size fits all' boiler, how much heat it can give out is set by the installer, so it doesn't come in a range of different heat output 'sizes'. It was developed for British Gas by Glow-worm. 

The 5 series range of combination boilers was developed by Worcester and comes in three different heat outputs. The British Gas Precision range was developed with Potterton.

British Gas customer satisfaction

We survey thousands of boiler owners to find out how satisfied they are with their brand. In our boilers reliability survey, we found that 6% of the people we asked had a British Gas boiler. We asked these people how satisfied they were with their British Gas boiler and whether they have had any problems with it since it was installed.

Which? members can log in to unlock and view full scores for British Gas boilers in the table below. If you're not already a member, sign up to try out full access for one month, for just £1.

Brand data for Baxi gas condensing boilers
Which? Survey resultsScore
Brand reliabilitySubscriber only content
Which? Customer ScoreSubscriber only content
Ownership among Which? members with gas boilersSubscriber only content
Most common faults experienced by owners
Boiler keeps switching itself offSubscriber only content
Control panel displays an error code that cannot be resetSubscriber only content
Boiler noisy in operationSubscriber only content
Water leaking from the boilerSubscriber only content
Water leaking from the condensate pipeSubscriber only content
Boiler completely broke downSubscriber only content
Problem with built-in controlsSubscriber only content

Table notes

Figures are based on responses from 4,354 condensing gas boiler owners who have bought a boiler since April 2006. Brand reliability sample size (177); customer score sample size (178).

Boiler reliability

Check out our boilers reliability survey to see the average scores for all boiler brands for quick comparison.

To find out exactly how each other boiler brand scored, see the full results of our boiler owners' views survey.

Warranties and servicing

The length of the warranty supplied with a British Gas boiler depends which manufacturer developed the boiler for British Gas - they are usually 12 to 24 months. New installations receive 12-month British Gas Homecare boiler repair cover.

British Gas offers boiler installations, maintenance and heating repair services including one-off repairs and boiler cover contracts

British Gas contact details

Send your letters to:

British Gas
PO Box 4805
BN11 9QW

You can contact British Gas by calling 0800 009 4450, or through the British Gas website.

British Gas technical support

0800 048 0505

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