Boiler brands rated British Gas
About British Gas boilers
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 boiler range
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.
Only logged in Which? members can view full scores in our boiler reliability table below. If you're not already a member, you can sign up to try out full access for one month, for just £1.
| Brand data for Baxi gas condensing boilers | |
|---|---|
| Which? Survey results | Score |
| Brand reliability |  |
| Which? Customer Score | |
| Ownership among Which? members with gas boilers | |
| Most common faults experienced by owners | |
| Boiler keeps switching itself off | |
| Control panel displays an error code that cannot be reset | |
| Boiler noisy in operation | |
| Water leaking from the boiler | |
| Water leaking from the condensate pipe | |
| Boiler completely broke down | |
| Problem with built-in controls | |
Table notes
The average customer score is 74% and the average brand reliability score is 74%. Both of these figures are based on responses from 4,501 condensing gas boiler owners who have bought a boiler since April 2005. Brand reliability sample size (219); customer score sample size (253); faults sample size (268).
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 servicing contracts.
British Gas contact details
Send your letters to:
British Gas
PO Box 4805
Worthing
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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