Replaced my boiler two years ago, hadn't even heard of Atag when installers offered them as the best due to 12 year warranty and lifetime heat exchanger warranty. The boiler is so quiet 🤫 when runnin... See more
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Review summary
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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
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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
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When it came to us needing a new boiler, our heating engineer gave us 4 quotes. After doing some research we decided on the ATAG. It has been extremely reliable, easy to use and the extended warranty... See more
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Company details
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
- office@atagheating.co.uk
- atagheating.co.uk
4.7
Excellent
5K reviews
Replied to 90% of negative reviews
Typically replies within 48 hours
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ATAG iC Economiser 39 Plus HB
After a lot of research the decision was made to go with the ATAG iC Economiser 39 Plus HB which was installed in 2024.
The installation went smoothly, and since then the boiler has been completely reliable with no issues at all. It delivers strong, consistent hot water and easily keeps up with the demand of a busy household, which was one of the main reasons I chose this model. The performance has been exactly what I was hoping for.
One feature I’ve found particularly useful is the online portal, which lets you see how the boiler is performing. It’s handy to keep an eye on efficiency and usage, and gives a bit of extra peace of mind that everything is running as it should.
Overall, I’d definitely recommend the ATAG iC Economiser 39 Plus HB. It’s been dependable, efficient, and easy to monitor, and so far it’s lived up to expectations with zero problems since installation.
22 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear Richard Kaad
Thank you for taking the time to share such a detailed review.
We’re delighted to hear that after careful research you chose the iC Economiser 39 Plus HB and that it has delivered the strong, reliable performance you were looking for.
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 great to know the installation went smoothly and that the boiler is meeting the demands of a busy household with consistent hot water and dependable operation.
We’re also pleased to hear you’re finding the online portal useful for monitoring efficiency and usage—it’s designed to provide exactly that extra peace of mind.
Thank you for your recommendation and for placing your trust in ATAG.
Kind regards
ATAG Heating Technology
We recommend ATAG boilers
We had an ATAG boiler fitted into our previous house in 2024 and were very happy with the product. We found it economic and efficient. We had confidence in the warranty offered. When we moved to another property in February of 2026 a new boiler was needed, we immediately opted for another ATAG boiler and again are very happy with our choice.
22 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear customer
Thank you for choosing ATAG for your replacement boiler for your new home. As you know from your previous property, you have made an excellent choice.
The ATAG i range of boilers are not only quiet but also the most efficient in Europe, due to the exceptional build quality of brass and stainless steel components. That is why we are confident to provide a lengthy warranty (up to 18 years) on all our boiler range with a lifetime guarantee on the heat exchanger as standard.
We really appreciate you taking the time to share your experience and writing this review.
Best wishes
ATAG Heating Technology
Had our ATAG boiler a couple of years…
Had our ATAG boiler a couple of years and very happy. Quiet, reliable and love being able to turn heating on remotely via internet.
22 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear D&P
We’re delighted to hear you’ve been very happy with your boiler over the past couple of years and that you’re enjoying its quiet, reliable performance.
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 also great to know you’re making good use of the thermostat on your app.
We really appreciate you taking the time to share your experience with ATAG.
Take care
ATAG Heating Technology
Brilliant boiler
Brilliant boiler. Great installer & installation, the heat in the house feels different. I know heat is heat, but the house feels so much more comfortable. & it's efficient.
Brilliant company and equipment
21 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear gary turner
Thank you for your fantastic feedback.
We are so pleased to hear you’re enjoying the comfort and efficiency of your boiler, and that the installation experience was a positive one.
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 great to know your home feels warmer and more comfortable—that’s exactly what we aim for.
We really appreciate your kind words about both the equipment and the company.
Kind regards
ATAG Heating Technology
Service was prompt
Service was prompt. The engineer was proactive and pre ordered the part required ,based on information he had of the fault , even before visiting to attend to the repair. So the whole operation was seamless and quick .
16 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear Yogarani Stal
Thank you for your feedback.
We’re pleased to hear the service was prompt and that the engineer took a proactive approach by pre-ordering the required part ahead of the visit.
It’s great to know the repair process was seamless and completed quickly.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
We appreciate you taking the time to share your experience with ATAG.
Best wishes
ATAG Heating Technology
Perfect boiler no problems at all good…
Perfect boiler no problems at all good value for money well recommended
Good aftercare
13 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear Thomas Keane
Thank you for your great feedback.
It's great to hear your boiler has been trouble-free and that you feel it offers good value for money.
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 you’re happy with the aftercare. We have a team of Technical Advisors (who are all Gas Safe registered) here on hand to offer any help and advice on your boiler.
Take care
ATAG Heating Technology
ATAG new boiler
A great product that was installed by really qualified and extremely helpful engineer.
Michael of Gas Solutions was very thorough with every aspect of the installation. " Simply the Best"
16 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear Len
We’re delighted to hear you’re pleased with the product and that Michael from Gas Solutions carried out the installation so thoroughly and professionally.
We’ll be sure to pass your kind comments on. It’s wonderful to know you had such a positive experience.
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.
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 fantastic feedback.
Kind regards
ATAG Heating Technology
The service engineer was very…
The service engineer was very professional explaining in detail what he was doing. When the work was completed he gave an excellent tutorial on the new boiler. Tremendous service.
12 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear Mr Arthur Rollin
We really appreciate you taking the time to share your experience with ATAG.
We’re delighted to hear the service engineer was professional, took the time to explain the work in detail, and provided a clear tutorial on your new boiler.
It’s great to know you received such tremendous service.
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
iC Economiser 35+ and One Zone
Installed an iC Economiser 35+ in 2019 and it has generally been great, but after upgrading my WiFi to full fibre and changing network provider I ran into problems with the One Zone controller refusing to reconnect to the WiFi despite troubleshooting all possibilities. Ultimately ATAG instructed a warranty replacement for the controller which slotted in and connected to network no problems, so back up and running within a week. Thanks to Lewis, the technical coordinator for his swift replies and resolving the issue for me.
16 April 2026
Unprompted review
Reply from ATAG Heating Technology UK Ltd
Dear rory haye
Thank you for taking the time to share your experience.
We’re pleased to hear your iC Economiser 35+ has performed well over the years, and that when the Wi-Fi connection issue arose after your network upgrade, our team was able to resolve it with a warranty replacement.
It’s great to know everything is now back up and running smoothly.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
We’ll be sure to pass your kind thanks on to Lewis for his swift support.
We really appreciate your feedback.
Kind regards
ATAG Heating Technology
ATAG Boiler
Well made boiler and 18 year warranty. After my Worcester Bosch boiler packed in after 10 years my servicing engineer recommended ATAG. Better heating/hot water output and fully Hive connnected. Contacted direct by the company after install and after a year to ensure all going well.
10 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear Barry
We really appreciate you taking the time to share your experience with ATAG.
We’re pleased to hear your Installer recommended ATAG and that you’re enjoying the improved heating and hot water performance, along with the connectivity features.
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. To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
It’s also wonderful to know our follow-up contact after installation and at the one-year mark was helpful.
Warm regards
ATAG Heating Technology
Great appliance. had no issues in the 2…
Great appliance had no issues in the 2 years we have had boiler fitted very efficient we notice a massive difference in our heating cost compared to our old boiler.
Customer service is great and quite a lengthy warranty too
13 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear Mairi Wilson
We’re delighted to hear your boiler has been running reliably for the past two years and that you’ve noticed a significant difference in your heating costs compared to your previous system.
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 great to know you’re happy with our customer service and the length of the warranty.
We really appreciate you taking the time to share your experience with ATAG.
Kind regards
ATAG Heating Technology
Reply from ATAG Heating Technology UK Ltd
Dear Mark
Thank you for your feedback.
We’re pleased to hear you’re very happy with your replacement boiler and that you’re enjoying how quiet and efficient it is.
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.
We appreciate you taking the time to share your experience with ATAG.
Kind Regards
ATAG Heating Technology
Reply from ATAG Heating Technology UK Ltd
Dear Darren
Thank you for taking the time to share your experience with ATAG.
We’re delighted to hear you’re pleased with your boiler, the installation, and the warranty.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
We really appreciate your support.
Kind regards
ATAG Heating Technology
No problem boiler
We have had our Atag boiler for two years now and have had no issues. It's quiet and I like that it can be controlled remotely with the app. Also, monthly emails tell me how much heat and hot water used compared to last year at the same time.
8 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear Julie
We’re delighted to hear your boiler has been running reliably for the past two years and that you’re enjoying how quiet it is.
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 also great to know you find the remote control features and monthly usage emails helpful for keeping track of your heating and hot water.
We really appreciate you taking the time to share your experience with ATAG.
Best wishes
ATAG Heating Technology
Great insaller
The installer quoted accurately, he installed on the agreed day, he was informative and professional giving me clear instruction using the programmable app. He tidied up well, the service the following year was on time and completed professionally keeping the warranty valid.
8 April 2025
Reply from ATAG Heating Technology UK Ltd
Dear Don Connor
Thank you for your detailed feedback.
We’re pleased to hear the installation was carried out as agreed, with clear guidance provided on using the programmable app, and that everything was left tidy afterwards.
It’s also great to know your annual service was completed on time and professionally, helping to keep your lengthy warranty valid.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
We really appreciate you taking the time to share your experience with ATAG.
Kind Regards
ATAG Heating Technology
This brand was recomended to me by my… heating engineer
This brand was recomended to me by my heating engineer.My old boiler was giving me a lot of problems and on his recomendatiin went for the Atag.Extremely quiet boiler with a long guarantee.I fully recomend Atag once youve had one youll realise what you have bought is a top quality product.
7 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear GRAHAM ELLWOOD
Thank you for your fantastic feedback.
We’re pleased to hear your heating engineer recommended ATAG and that you’re enjoying the benefits of a quiet, reliable boiler with a long warranty
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
It’s great to know you’re happy with the quality of your purchase and confident in recommending us to others.
We really appreciate you taking the time to share your experience.
Best wishes
ATAG Heating Technology
When it came to us needing a new…
When it came to us needing a new boiler, our heating engineer gave us 4 quotes. After doing some research we decided on the ATAG. It has been extremely reliable, easy to use and the extended warranty period was a great bonus. We have had it 2 years now and we are extremely happy that we choose ATAG .
6 April 2026
Reply from ATAG Heating Technology UK Ltd
Dear carol sharp
Thank you for sharing your experience.
We’re delighted to hear that after carefully comparing options, you chose ATAG and have found your boiler reliable, easy to use, and supported by a warranty that gives you added peace of mind.
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 great to know you’re still extremely happy with your decision after two years.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
We really appreciate your feedback and your trust in ATAG.
Best wishes
ATAG Heating Technology
They seem to turn up when they say
They seem to turn up when they say, very pleasant chap and sincere repairing the non working item so far so good
30 March 2026
Reply from ATAG Heating Technology UK Ltd
Dear Ros. Bartlett
Thank you for your feedback.
We’re pleased to hear the engineer arrived as promised and carried out the repair in a pleasant and professional manner.
It’s great to know everything is working well.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
We appreciate you taking the time to share your experience.
Kind regards
ATAG Heating Technology
Great product and great service
Great product and great service. When I had an issue, it was resolved without fuss very quickly and efficiently and that makes a world of difference especially with something as important to a family as a boiler. Cannot recommend enough.
27 March 2026
Reply from ATAG Heating Technology UK Ltd
Dear Mike Dorricott
Thank you for your fantastic feedback.
We’re delighted to hear you’re happy with both the product and the service, and that when an issue arose it was resolved quickly and without fuss.
We completely understand how important a reliable boiler is for a family, so it’s great to know we made a positive difference.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer
We really appreciate your recommendation and your support.
Brest wishes
ATAG Heating Technology
Well done ATAG!
Same day repair carried out by a very friendly & knowledgeable engineer. Stuart from Leeds.
22 March 2026
Reply from ATAG Heating Technology UK Ltd
Dear william walker
Thank you for your feedback.
We’re pleased to hear the same-day repair was carried out by a friendly and knowledgeable engineer.
We’ll be sure to pass your kind comments on to Stuart.
To ensure continued performance and maintain your warranty, we simply ask that the boiler is serviced annually by a qualified Gas Safe Registered engineer.
We appreciate you taking the time to share your experience with ATAG.
Kind regards
ATAG Heating Technology
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