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Boiler brand guides

ATAG boiler guide

By Matthew Knight

Article 3 of 20

Find out how reliable ATAG boilers are with the results of our unique boiler owners' survey. Once you've learned about ATAG boilers, you can look at its range in our ATAG boiler reviews.

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ATAG has been designing and manufacturing boilers for nearly 70 years, and it claims to set the highest standards for efficiency and engineering excellence. 

It also claims to have condensed all of its expertise into its 'i' range of ATAG boilers, which comprise combi, regular and system boilers. You can find out more about the individual boilers in its range in our ATAG boiler reviews.

More than 8,000 members of the general public take part in our annual boiler brand reliability and customer satisfaction survey, enabling us guide you to the best and worst boiler brands. We also conduct a survey with more than 170 trusted boiler engineers to get their independent views on which boiler brands are the best.

Boiler brand guide
Brand data for ATAG boilers
Overall score M
Customer score
Engineer recommendation
Build quality
Availability of parts and spares
Ease of fixing a common fault
Ease of servicing
Table notes
The reliability and customer score are based on responses from a May and June 2019 survey of 8,458 boiler owners.
Engineer recommendation, build quality, availability of parts and spares, and ease of fixing a common fault and ease of servicing are based on responses to a June 2019 survey of 171 Which? Trusted Traders heating engineers.


Member Content

How much do ATAG boilers cost?

ATAG gas boilers tend to cost around £1,500, which puts them at the pricier end of the market. 

ATAG boilers installation

Expect to pay up to £1,500 for a new boiler installed in a new location. For more information about how much you should expect to pay, see our guide to the cost of installing a boiler.

ATAG servicing and repairs

ATAG claims to have a network of engineers and installers that operate across the UK. You can contact its customer service helpline on the contact details below. 

ATAG contact details

You can contact ATAG at the following email address:


or by calling them on

0800 680 0100