Verified
Had new boiler now in its 6th year pay for yearly service but it came with 10year guarantee .First major problem I have had and it's so good to call and get a human to speak with ! Was not a strai... See more
Company replied
While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more
To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more
Review summary
Based on reviews, created with AI
Based on these reviews
Verified
Engineer arrived on time, Knew what he was doing, Did thorough service, Pointed out things previously missed by other engineers and gave advice on how to look after boiler,day to day ,to keep it... See more
Company replied
Verified
I emailed ATAG as my boiler had an issue. They sent someone out within 48 hours of the contact. Tommy who was a very professional and highly skilled technician from Harvey’s diagnosed the problem and... See more
Company replied
Verified
Had a boiler pump problem which was covered by the Atag guarantee. It was repaired swiftly and effectively by Atag contractor. Even after a minor hiccup, the engineer wouldn't give up till all was wor... See more
Company replied
Verified
We replaced an old boiler that had reached the end of its useful life (repeated faults, difficulty in getting parts etc.) with a new ATAG boiler integrated with a new Tado smart thermostat syste... See more
Company replied
Verified
Last December we moved into a new house. We had no experience of gas central heating having lived for many years in flats.we had no information about the system in the house. A local heating engineer... See more
Company replied
Verified
We needed a new boiler and our local plumber recommended Atag as he fits a lot of them to customers and family alike. It's easy to use , it's quiet and has saved us money on fuel consumption. It's... See more
Company replied
Verified
We’ve been having an error with our boiler for a few days which cleared with a reset. However it wasn’t permanent, the fault reappeared again. After a call to ATAG call centre a representative was ons... See more
Company replied
Verified
Purchased a new Atag Economiser Boiler in 2023 complete with a massive 14 year parts and labour guarantee on provisio the combi boiler is serviced every 12 months to maintain the guarantee. It's been... See more
Company replied
Verified
The fault was found on Tuesday the part was ordered the same day and the repair was carried out on Friday. The engineer checked both the hot water and heating and said that both were working properly... See more
Company replied
Verified
Been excellent since day one, great pressure throughout the house, especially since we have a downstair loo, bathroom and Ensuite, however currently getting Ensuite redone so will update if my experie... See more
Company replied
Verified
We have had the boiler about two years now, no issues, very easily adjusted for summer/winter. Very happy with the long time warranty as it basically means we'll only pay for services yearly and shoul... See more
Company replied
Verified
I have had the Economiser 35 combi for 2 years now and it has been a great investment. Large initial outlay in comparison to others however the savings on bills are huge and the long warranty for me... See more
Company replied
Verified
We have just had our 2nd annual service on our ATAG iC Econ 27plus boiler, with no issues found. It was recommended to us by our heating installer and we are very pleased with his recommendation. It... See more
Company replied
Verified
From the first report of a fault on my ATAG boiler the team were fantastic. No waiting in long queues, no background music just well trained caring staff who were competent and concerned. They follow... See more
Company replied
Verified
Was recommended this boiler by a local plumbing firm. Hadn’t heard of Atag but a bit of research showed they have excellent reviews so took the leap. Circulation pump which previous setup gave trouble... See more
Company replied
Verified
We've got the boiler thanks to our plumber , we trusted him completely with his recommendation. It is a great boiler, I feel sorry we haven't decided earlier to change the old one. The remote is so co... See more
Company replied
DO NOT BUY THIS BOILER AS THE WARRANTY IS NOT WORTH THE PAPER ITS WRITTEN ON !!! Leaking heat exchanger after 18 months, a technical sales man got called out to it who was going to change the heat... See more
Company replied
Verified
Very good efficient boiler, we had it since 2023 as recommended by plumber; is economic, does not cost a fortune and is very handy, easy to use, in a click of a button on your phone, which is what we... See more
Company replied
Verified
Got ATAG boiler 2 years ago when my old Valiant gave up the ghost. I was thinking of replacing it like for like, but my Boiler engineer recommended ATAG, as it comes with 10 year warranty and is, as p... See more
Company replied
Verified
Very friendly people and engineers. We had to have three visits as sadly the second engineer forgot, in his haste, to turn the return valve so we were without heating for 4 days! Apart from that e... See more
Company replied
We bought our ATAG boiler just under 3 years ago - and had it serviced iaw the Warranty each year. Over the past few months it has become unrelaible and it now fails several times a day, requiring a... See more
Company replied
Verified
I have had 2 ATAG boilers now and frankly can’t praise them enough. They are very efficient, very reliable and have great warranty terms. For me as well it integrates well with my HomeAutomation s... See more
Company replied
Verified
The boiler is very efficient. Instant hot water with good pressure. Heating also gets to temperature quickly. Customer care is brilliant to deal with and a great warranty comes with all boilers if... See more
Company replied
Verified
The boiler was recommended by my plumber when a fault occurred on my old boiler. The new Atag boiler was installed. It has been 2yrs.now since fitted. It is an extremely well made boiler. The... See more
Company replied
Verified
Called Atag local engineer on a Friday morning, was told needed new valve. Contacted Atag, originally an appointment was made for following Monday. Then got a call to say Atag Engineer could call on t... See more
Company replied
Verified
I have had my ATAG boiler in for several years now and never had any problems with it at all. It has been excellent. It amazing many people still don't know the name ATAG but these are excellent b... See more
Company replied
Verified
Quick in answering call and helpful advisor. Local plumber assigned and in contact with me, as promised, just a few hours later. Appointment made. Helpful advice and quickly dealt with.
Company replied
Verified
ATAG build quality if fantastic.. all components are far superior to their competitors. 10 to 15 year warranties on their boilers. Their call centre is based in Scotland.. an all round great product.... See more
Company replied
Verified
Our plumber recommended an ATAG boiler, he said he never has problems with them and are very well made. We agreed and have been very happy with our purchase. It works really well and is very quiet whe... See more
Company replied
I had an ATAG boiler fitted in 2019 and this had been reliable until recently when the boiler was constantly firing up and I couldn’t work out why. A plumber attended who also couldn’t establish the... See more
Company replied
I’ve been installing ATAG boiler for about 8 years and my dealings with them have always been excellent. Tech support do their utmost to resolve any and all issues as best they can, with a 18year war... See more
Company replied
Verified
Excellent customer service, after 6 years our ATAG boiler went wrong (the heating came on when running the hot water) The problem was diagnosed over the phone by ATAG. They sent an engineer within a c... See more
Company replied
Verified
I have had an ATAG Central Heating boiler for about five years. Recently I had a problem with it due to extremely cold weather, this was quickly rectified by a Central Heating engineer, and it is ba... See more
Company replied
Verified
Just agood service,very pleasent enginner,explaned everthing he was doing to me and why,which i like that,you know what you get, no mess all good
Company replied
Verified
we had a boiler problem i contacted ATAG technical department i explained the fault . they passed my fault to one of there approved ATAG boiler engineer company , GO2 GAS solutions who contacted us w... See more
Company replied
Verified
Fantastic boilers at a reasonable price. I have had 3 x XL Atag Commercial boilers for coming up to 6 years now ( I do get them serviced annually ), however so far not 1 thing has ever gone... See more
Company replied
Verified
The Initial Contact with Atag is straightforward. Based upon where You live makes a difference. I live in Reading and was Informed about the 2 Companies that Provide the Full Service of Atag Boil... See more
Company replied
Verified
My ATAG combi boiler was installed by a local heating engineering company. They had recommended the product to me and explained that it came with an extensive warranty. I have had the boiler for... See more
Company replied
Verified
We were told about ATAG by the plumbers we have used for years and we were not disappointed. The boiler is quiet and very efficient and comes with the bonus of a long warranty. The house has never bee... See more
Company replied
Verified
Very quiet, monitors usage, and you get your latest monthly usage. Very easy to repressurise if required. Wonderfully long guarantee, not that I've needed to use it. It has lowered my energy costs.... See more
Company replied
Verified
On a Friday after a service, the engineer said there was a fault that needed to be fixed by Atag who would probably contact me the following week. I received a call from Atag just a few hours later o... See more
Company replied
This company repeatedly sends me weekly text messages and emails. I never signed up to any mailing list, and I strongly dislike this kind of unsolicited contact. There is no option to block them... See more
Company replied
Company details
- #41 of 58 best companies in Boiler supplier
- #6 of 12 best companies in Boiler Manufacturer
- #94 of 124 best companies in Heating service
Written by the company
We do things differently at ATAG. Our constant commitment to engineering precision, matched with our commitment to only using quality components, means that our boilers are built to last. Spending money on a new boiler is a big investment, and you need to be sure that it’s going to keep you warm for years to come. That’s why every ATAG boiler comes with a 12-year warranty, with the option to upgrade to 18 years on all parts and all labour. For us, it’s about your long-term peace of mind. ATAG boilers can only be bought through an ATAG Selected Partner (ASP). All of our ASPs are legally qualified Gas Safe Registered installers who know how to install an ATAG boiler correctly. We only sell to gas-safe installers because we need to know you’re in safe hands all the way. To find out more, visit www.atagheating.co.uk.
Contact info
Operational Address: 1 Masterton Park, South Castle Drive, KY11 8NX, Dunfermline
- 0800 680 0100
- [email protected]
- atagheating.co.uk
4.6
Excellent
5K reviews
Replied to 100% of negative reviews
Typically replies within 24 hours
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Verified
Reply from ATAG Heating Technology UK Ltd
Dear Jacqui SUmmersgill
We’re glad to hear everything went smoothly, the engineer arrived as promised, and your boiler is back up and running.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Thank you for your feedback.
Best wishes
ATAG Heating Technology
Verified
Just agood service,very pleasent…
Just agood service,very pleasent enginner,explaned everthing he was doing to me and why,which i like that,you know what you get, no mess all good
6 February 2026
Reply from ATAG Heating Technology UK Ltd
Dear customer
Thank you for your review.
We’re pleased to hear you received good service and that the engineer was pleasant, took time to explain everything clearly, and left no mess behind.
It’s great to know you felt informed and comfortable throughout the visit.
We really appreciate your feedback.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Best wishes
ATAG Heating Technology
DO NOT BUY THIS BOILER AS THE WARRANTY…
DO NOT BUY THIS BOILER AS THE WARRANTY IS NOT WORTH THE PAPER ITS WRITTEN ON !!!
Leaking heat exchanger after 18 months, a technical sales man got called out to it who was going to change the heat exchanger under warranty however couldn't be bothered as he was due to break off for Christmas !! referred it back to the office and told them the heat exchanger failed due to the suspected water quality in the system. This system had perfectly clean water in it running underfloor heating only and their supplied inhibitor. 2 months later and still no one has called me the installer back to give me any feed back as to why they have not repaired the boiler !! they only sell to gas safe engineers and I can't see how they will sell boilers if their back up warranty and service isn't good. its not worth it stay away from ATAG Boilers as the warranty just isn't a warranty I'm afraid !!
4 February 2026
Unprompted review
Reply from ATAG Heating Technology UK Ltd
Dear Andy Robinson
Thank you for taking the time to share your feedback.
I'm so sorry to learn that you’ve experienced issues with the replacement of a heat exchanger.
To ensure this matter can be investigated and responded to, can you please email me at [email protected].
Kind regards
Dawn Allan
Head of Operations
Verified
Reply from ATAG Heating Technology UK Ltd
Dear Jason Mitchell
Thank you for taking the time to review.
We are so pleased that you were happy with the Warranty Partner who attended your property when you recently had an issue with your boiler.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Kind regards
ATAG Heating Technology
This company repeatedly sends me weekly…
This company repeatedly sends me weekly text messages and emails. I never signed up to any mailing list, and I strongly dislike this kind of unsolicited contact. There is no option to block them from texting, which makes the situation even more frustrating.
If harassment were an option, I would give zero feedback, but unfortunately that is not available.
They have obtained and used my personal data without consent, despite me never being a client. If this is how they handle people’s data before you even become a customer, it raises serious concerns about how your data will be used after installing a boiler in your home.
As an engineer myself, I understand advertising—but ethical advertising does not involve aggressive, repeated messaging to people who have not requested contact. This approach is unprofessional and unacceptable.
29 January 2026
Unprompted review
Reply from ATAG Heating Technology UK Ltd
Dear Andras Zsilak
Thank you for taking the time to write this review.
Please accept our sincere apologies for the unsolicited messages you have received and for any frustration they have caused.
We would like to clarify that this contact formed part of a marketing campaign directed at Gas Safe registered engineers. The contact details used were obtained from information that is publicly available on the Gas Safe Register website, which is accessible to anyone.
That said, we fully understand your concerns and respect your position.
In order for me to instruct our marketing team to remove your details from our contact list with immediate effect, can you please email me at [email protected] with your Gas Safe Number
Once again, please accept our apologies for the inconvenience caused.
Kind regards
Dawn Allan
Head of Operations
Verified
Good customer service fixed faulty…
Good customer service fixed faulty part. Hot water now working. Polite amd respected property.
25 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear Robert Dunn
Thank you for your feedback.
We’re pleased to hear our Warranty Partner was able to fix the faulty part and get your hot water working again.
It’s also great to know the engineer was polite and respectful of your property.
We appreciate you taking the time to share your experience.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Warm regards
ATAG Heating Technology
Verified
Great product
I have had the Economiser 35 combi for 2 years now and it has been a great investment. Large initial outlay in comparison to others however the savings on bills are huge and the long warranty for me makes it a great decision.
No issues as of yet so I am happy.
21 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear George Ackermann
Thank you for sharing your experience.
We’re delighted to hear that your Economiser 35 Combi has been a great investment, helping you save on bills while providing peace of mind with a long warranty.
The ATAG i range of boilers is the most efficient in Europe, thanks to its outstanding build quality, featuring high-grade brass and stainless steel components.
This level of engineering excellence enables us to offer a lengthy warranty, up to 18 years, across our entire boiler range, along with a lifetime guarantee on the heat exchanger as standard.
Our top-of-the-range Economiser boilers are among the quietest in the UK, proudly earning the Quiet Mark accreditation in 2021 in recognition of their exceptionally low noise levels.
It’s wonderful to know you’ve had no issues so far and are happy with your decision.
We appreciate you choosing ATAG.
Kind regards
ATAG Heating Technology
Verified
Good response to a guarantee claim
The matter was dealt with promptly and professionally. The assigned engineer dealt completely with the problem and the same day it was authorised. You stood by your guarantee.
20 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear Oliver Bettison
Thank you for your feedback.
We’re pleased to hear the issue you had with your boiler was dealt with promptly and professionally, and that our Warranty Partner was able to resolve it the same day.
It’s great to know you feel supported by our warranty.
We appreciate you taking the time to share your experience with ATAG.
Kind regards
ATAG Heating Technology
Verified
Had new boiler now in its 6th year pay…
Had new boiler now in its 6th year pay for yearly service but it came with 10year guarantee .First major problem I have had and it's so good to call and get a human to speak with !
Was not a straight forward fix but engineer went out of his way so we had not too long for parts (next day) and hopefully now back to being it's usual reliable boiler I hope.
22 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear HILL
Thank you for your feedback.
We’re glad to hear your boiler has been reliable over the past six years and that our Technical team was easy to get in touch with.
We’re pleased the engineer was able to act quickly and minimise any delay in getting the parts you needed. We do aim to have parts out the next working day, if they are not standard to the Warranty Partners kit.
We hope your boiler continues to perform reliably, and we appreciate you taking the time to share your experience with ATAG.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Best wishes
ATAG Heating Technology
Verified
Reply from ATAG Heating Technology UK Ltd
Dear Martin J
Thank you for review and for letting us know that you were happy with the warranty partner who attended for your recent boiler issue
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Warm regards
ATAG Heating Technology
Verified
Great Boiler
The boiler is very efficient. Instant hot water with good pressure.
Heating also gets to temperature quickly.
Customer care is brilliant to deal with and a great warranty comes with all boilers if serviced.
21 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear James Barnett
Thank you for your great feedback.
We’re pleased to hear you’re enjoying the efficiency of your boiler, with instant hot water, good pressure, and fast heat-up times.
The ATAG i range of boilers is the most efficient in Europe, thanks to its outstanding build quality, featuring high-grade brass and stainless steel components.
This level of engineering excellence enables us to offer a lengthy warranty, up to 18 years, across our entire boiler range, along with a lifetime guarantee on the heat exchanger as standard.
It’s also wonderful to know our customer care team and warranty support have met your expectations.
Thank you for choosing ATAG and for taking the time to share your experience.
Best wishes
ATAG Heating Tehnology
Verified
ATAG Central Heating
I have had an ATAG Central Heating boiler for about five years. Recently I had a problem with it due to extremely cold weather, this was quickly rectified by a Central Heating engineer, and it is back to heating my house perfectly again.
20 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear George T
Thank you for your review.
We’re pleased to hear that after five years of ownership the issue you experienced during the extreme cold weather was quickly resolved and that your boiler is now heating your home perfectly again.
We appreciate you sharing your experience and thank you for choosing ATAG.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Best wishes
ATAG Heating Technology
Verified
Thoroughly professional team
Thoroughly professional and knowledgable about the Atag boiler They identified the cause of the problem, which was not initially apparent nor straightforward. Touch wood, everything about the boiler is now firing from all cylinders, and we are really cozy.
20 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear Hume voegeli
Thank you for your kind feedback.
We’re delighted to hear our engineer was thorough, professional, and knowledgeable, and was able to identify and resolve an issue that wasn’t immediately apparent.
It’s great to know everything is now running as it should and that you’re warm and comfortable again.
We really appreciate you taking the time to share your experience.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Kind regards
ATAG Heating Technology
Verified
The service was swift and I was put…
The service was swift and I was put in touch with an engineer who arrived when he said he would and carried out the repair efficiently.
15 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear Mrs Naylor
Thank you for your review.
We’re glad to hear the warranty repair was swift and that the engineer arrived as promised and completed the repair efficiently.
We appreciate you taking the time to share your experience and are happy to help whenever you need us.
Best wishes
ATAG Heating Technology
Great Boiler repair service
I reported my Boiler failure the day before Hogmanay and the ATAG colleague (Sean) dealt with the repair instruction very quickly and very efficiently.
Thank you Sean well done!
30 December 2025
Unprompted review
Reply from ATAG Heating Technology UK Ltd
Dear Phillip
Thank you for your feedback.
We’re pleased to hear that Sean was able to deal with arranging your repair, under warranty, quickly and efficiently, especially at such a busy time of year.
We’ll be sure to pass on your kind comments to him.
Thanks for taking the time to share your experience with ATAG.
Kind regards
ATAG Heating Technology
Verified
Great service from ATAG
Next day service after a late afternoon call for short-cycling fault. The engineer arrived early and was knowledgeable, polite and helped direct us to how to prevent the issue from reoccurring.
6 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear Phillip L Barrett
Thank you for taking the time to leave this review.
We’re pleased to hear that after your late afternoon call we were able to arrange next-day service, and that the engineer arrived early,
Great to hear that he was knowledgeable and polite, and provided helpful advice to prevent the issue from reoccurring.
We’ll be happy to pass your feedback on to the team.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Warm regards
ATAG Heating Technology
Verified
I had a problem with an Atag boiler…
I had a problem with an Atag boiler connecting to my WiF the team at Atag sorted it out very quickly by talking me through the process one step at a time they were very patient thank you Atag team
8 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear Fred Payne
Thank you for taking the time to review.
We’re pleased to hear our Technical Team were able to resolve the Wi-Fi connection issue quickly and guide you through the process step by step.
Patience and clear support are important to us, so it’s great to know this came across.
We’ll be sure to pass your thanks on to the Technical Team.
Best wishes
ATAG Heating Technology
Verified
Great service
Quick in answering call and helpful advisor. Local plumber assigned and in contact with me, as promised, just a few hours later. Appointment made. Helpful advice and quickly dealt with.
2 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear Fiona
Thank you for your feedback.
We’re pleased to hear your call was answered quickly and that the member of our Technical Team was helpful.
It’s great to know the local plumber contacted you as promised and that everything was arranged and dealt with promptly.
We appreciate you taking the time to share your experience and are glad we could help.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Kind regards
ATAG Heating Technology
Potentially Dangerous Fault
We have had to call in the gas safety engineer because our under warranty ATAG boiler developed scorch marks on the exterior of the boiler in a period of only five hours or so. We are waiting to see what the solution is but this seems to be dangerous to me and the Emergency gas safety engineer warned that they would’ve been carbon monoxide released!!
As a follow up, I can’t fault the service from ATAG to get the boiler up and running ASAP, but it still remains a one star review because of how potentially dangerous the failure mechanism was.
6 January 2026
Unprompted review
Reply from ATAG Heating Technology UK Ltd
Dear Mr Tim Higham
We are sorry that you have felt the need to write this 1 star review.
The Technical Team are in receipt of the email you sent in earlier today and one of the Team will be in touch with you and will discuss the resolutions to this issue.
Kind regards
Dawn Allan
Head of Operations
Verified
Error 151, an error that just wouldn’t go away!
We’ve been having an error with our boiler for a few days which cleared with a reset. However it wasn’t permanent, the fault reappeared again. After a call to ATAG call centre a representative was onsite just a few hours later. Absolutely great service.
5 January 2026
Reply from ATAG Heating Technology UK Ltd
Dear Dave Smith
Thank you for taking the time to share your experience.
We’re sorry to hear about the recurring boiler fault, but we’re pleased that a reset provided temporary relief and that our Technical Team were able to arrange a prompt visit.
We’re especially glad to hear you were happy with the speed of our service.
Your feedback is greatly appreciated and will be shared with the team.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
Warm regards
ATAG Heating Technology
The Trustpilot Experience
Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.
Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.
Learn more about other kinds of reviews.
We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.
Learn about Trustpilot’s review process.
Here are 8 tips for writing great reviews.
Verification can help ensure real people are writing the reviews you read on Trustpilot.
Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.