When my last boiler became unreliable I asked my gas service engineer which brand he recommended. He suggested ATAG and although I had not come across them before I went with his suggestion. Installat... See more
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Review summary
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Reviews shaping this summary
We are a household of two adults aged 60+. The ATAQ boiler completely suits our needs. We can regulate the hot water on a timer to our needs as we dont require constant hot water. The ATAQ boiler is e... See more
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
Company replied
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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Company details
- #30 of 57 best companies in Boiler supplier
- #4 of 12 best companies in Boiler Manufacturer
- #70 of 121 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
- 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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Excellent all round service
The engineer was knowledgeable, helpful, respectful and friendly. An excellent job done promptly and efficiently.
6 June 2025
Reply from ATAG Heating Technology UK Ltd
Dear Rob Low
We're glad to hear that your warranty visit went smoothly and that our engineer provided prompt, efficient service with professionalism and courtesy.
We’ll be sure to pass on your comments to the team—it means a lot to us.
If you need anything in the future, we’re always here to help.
Thank you for taking the time to review.
Kind regards
ATAG Heating Technology
The boiler was installed by a trusted…
The boiler was installed by a trusted plumber that I have know for may years. The boiler is very quiet compared to the old boiler. The boiler is energy efficient. The long warranty was very important to me. The boiler has been 100% reliable. I have owned the boiler for two years now.
6 June 2025
Reply from ATAG Heating Technology UK Ltd
Dear Mr Wilbraham
Thank you for taking the time to share your experience!
It’s great to hear that your trusted plumber recommended the boiler and that it’s been running quietly and efficiently for you.
We're especially pleased to know it’s been 100% reliable over the past two years—that kind of long-term performance is exactly what we aim for.
The long warranty is there for peace of mind, and it’s wonderful to know that was an important factor in your decision. We do ask that your boiler is serviced on an annual basis in order to maintain the warranty.
Thanks again for your review.
Best wishes
ATAG Heating Technology
Very satisfactory boiler
Very satisfactory boiler. Now reaches towel racks etc that hadn't been warming for a while. Heating control box not entirely intuitive, but we've found a decent modus vivendi.
6 June 2025
Reply from ATAG Heating Technology UK Ltd
Dear RW
We're delighted to hear that your new boiler is performing well and heating areas that were previously missing out—like those towel racks!
We appreciate your feedback on the control box interface; it's great that you've found a workable setup, and we'll certainly pass your comments on for future improvements.
If you ever need help optimizing the settings, don’t hesitate to get in touch!
Thank you for taking the time to review.
Best wishes
ATAG Heating Technology
My ATAG combi boiler was installed by a…
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 2 years and have been pleased with its performance. It is quiet
and very efficient to run. I have my heating on constantly throughout the winter months and my bills have been very reasonable.
5 June 2025
Reply from ATAG Heating Technology UK Ltd
Dear DAG
Thank you so much for taking the time to share your experience!
We're delighted to hear that your ATAG combi boiler has been performing well over the past two years.
It's great to know that you're enjoying its quiet operation and energy efficiency — especially during the colder months when reliable heating is essential.
We're also glad that the recommendation and warranty offered peace of mind.
If you ever need support in the future, please don’t hesitate to get in touch!
Best wishes
ATAG Heating Technology
Top Support
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 warranty on offer, I’d say they got a good thing going on.
2 June 2025
Unprompted review
Reply from ATAG Heating Technology UK Ltd
Dear Nigel Yates
Thank you for your continued support over the past 8 years! We're proud to hear that your experience with ATAG has consistently been excellent.
Our technical support team is always committed to helping installers like yourself, and it's great to know their efforts have made a positive impact.
We're especially glad you see the value in our extended warranty—18 years of peace of mind is something we’re proud to offer.
Thanks again for being part of the ATAG journey and for taking the time to review. We look forward to supporting you on many more successful installs!
Kind regards
ATAG Heating Technology
Fantastic boilers - long warranty
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 wrong on them.
I also has 3 x domestic i40R boilers aswell, they are going 2 years strong now, no issues whatsoever.
They have a great technical support team, who are only a phone call away.
When there was a Nationwide shortage after covid of boilers and I was in the middle of my building project,I turned to these guys who had plenty of availability. Service was fast and quick. I will be using these boilers again in my future projects. I highly recommend them, low maintenance, reasonable prices, extra long warranty , better than any other manufacturer.
30 May 2025
Reply from ATAG Heating Technology UK Ltd
MR Mohammed Kassim Mughal
Thank you so much for your fantastic review!
We're thrilled to hear that both your i40R domestic boilers have been performing flawlessly over the years. It's great to know that our products' reliability, combined with regular servicing, has delivered real peace of mind.
We're also glad our technical support team could be there when you needed them, and that we were able to assist during the boiler shortage—it's always our goal to provide prompt and dependable service.
Your recommendation means a lot to us, and we’re proud to be part of your past and future projects.
Thank you again for your trust and continued support!
Kind Regards
ATAG Heating Technology
New Atag Combi Boiler
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 great so far, no problems, its easy to use and is more economical meaning cheaper gas bills along the way. I would say we made the right choice in selecting Atag as the tech support is brill and is there to answer any questions if you're unsure of anything. So well pleased with our new Economiser Combi Boiler.
30 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear Keith Nicholson
Thank you for your wonderful feedback!
We're delighted to hear that your ATAG Economiser Boiler has been performing so well and that you're already noticing the benefits of improved efficiency and lower gas bills.
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.
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 14-year guarantee and our tech support have added to your confidence in your choice.
We’re so pleased you’re happy with your boiler and really appreciate you taking the time to share your experience!
Best wishes
ATAG Heating Technology
Solid build, great price and very dependable…
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 per him, "solidly made". Been using it for 2 years, did have an issue with the expansion tank in the first 3 months, but that was very efficiently and effectively dealt with by ATAG and no issues since then. I found it to be really well made and definitely more efficient than my previous boiler. Would happily recommend this to all.
27 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear Deepak Chinnam
We're pleased to hear your engineer recommended ATAG and that you've been pleased with the performance over the past two years.
It's great to know that the early issue with the expansion tank was resolved quickly and effectively, and that you're finding the boiler both well-built and more efficient than your previous one.
We really appreciate you taking the time to review and your recommendation and are happy to have you as a satisfied customer!
Kind Regards
ATAG Heating Technology
Fast service to rectify fault on boiler.
28 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear William
Thank you for your review.
Customer satisfaction is a top priority for us, so we're pleased to hear that your warranty call was handled promptly and efficiently, and that the reported fault has been successfully resolved.
As a reminder, we kindly ask that you continue to have your boiler serviced annually to ensure the validity of your warranty.
Best regards
ATAG Heating Technology
Reply from ATAG Heating Technology UK Ltd
Dear Clair Challenor-Chadwick
Thank you for taking the time to review.
We're delighted to hear that you're happy with the boiler's efficiency and quiet operation.
You’ve made an excellent choice by selecting our Economiser boiler, which is part of our premium range.
The i-series of ATAG boilers is renowned as the most efficient in Europe, and the Economiser is also among the quietest boilers in the UK, having been awarded the Quiet Mark in 2021.
Additionally, our entire boiler range now comes with a minimum 12-year parts and labour warranty, with the option of an extended 18-year warranty for added peace of mind.
We take pride in offering excellent customer service from start to finish, and it’s wonderful to know we've met your expectations.
Warm regards ATAG Heating Technology
Great quality boiler
Great quality boiler. Had it for 2 years now and no problems at all. Huge capacity for hot water
27 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear Natalie
We're glad to hear your boiler has been running smoothly for the past two years.
It's great to know you're enjoying the quality and the generous hot water capacity.
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.
Warm regards
ATAG Heating Technology
Great quality product with long…
Great quality product with long warranty and excellent customer service.
As an independent gas and heating engineer, I am always on the lookout for good quality and reliable boilers for my customers.
I regularly have reps from all different manufactures contact me to showcase their products and I occasionally install other brands as that's what the client requests.
Since 2014 whin I fitted my first Atag boiler I have found that the reliability is well above the other mainstream manufacturer on sale in the UK, this is backed up by Atag now offering upto 18 years warranty. this is almost double what most other manufacturers offer.
If your thinking Atag wont honor their warranty, well Ive been installing them for over 10 years and have never come across an incident where they have refused to honor the warranty.
As and installer and service agent I find these boiler very easy to install, service and repair. The components are good quality with all brass components and a stainless steel heat exchanger (most manufacturers use aluminium which corrodes much quicker compared to steel).
with regards to pricing I have found Atag to be competative if not cheaper if you take into account the length of warranty, inline filter, chemicals, smart thermostat, scale filter, flue and boiler.
1 May 2025
Unprompted review
Reply from ATAG Heating Technology UK Ltd
Dear Plumbing Plumbers Ltd
Thank you so much for your detailed and thoughtful review. We really appreciate the trust you've placed in ATAG over the years and are so pleased to hear how our products have supported your work as an independent gas and heating engineer.
Your experience speaks volumes—especially your feedback on reliability, ease of installation and servicing, and the long-term value our warranty offers. We're proud to hear our commitment to quality, from brass components to stainless steel heat exchangers, is making a tangible difference in your day-to-day operations.
We’re also glad to hear that your customers are benefiting from the full package we offer, including the extended warranty, smart thermostat, and filters.
Your continued support and recommendation mean a great deal to us.
Thanks again for being a valued installer and warranty engineer—here’s to many more years of reliable heating together!
Warm regards,
ATAG heating Technology
boiler repair
very polite when the engineer arrived did the job and left everything clean and tidy when he left all you can ask for.
24 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear Mr Chaffer
We're so pleased to hear our engineer was polite and left everything clean and tidy — just as it should be.
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.
Warm regards
ATAG Heating Technology
I have had no problems with the boiler
I have had no problems with the boiler. So far so good.
15 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear alec
We understand that investing in a new boiler is a significant decision, which is why we are committed to ensuring homeowners receive expert guidance.
To achieve this, our boilers are available exclusively through ATAG Selected Partners—trusted professionals who provide the highest level of advice and service.
Our standard offering includes a comprehensive warranty of up to 18 years covering parts and labour, along with a lifetime warranty on the heat exchanger, giving you long-term peace of mind.
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're glad to hear your boiler is working well — that's exactly what we like to hear. If you ever need anything, we're just a call or email away.
Thank you for taking the time to review.
Best wishes
ATAG Heating Technology
The ATAG engineer was courteous…
The ATAG engineer was efficient and courteous. Good all round.
22 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear Hal Robinson
Thank you for taking the time to review.
We're glad to hear that our ATAG engineer was efficient and courteous on your recent warranty visit.
We appreciate your feedback and are pleased to know you had a positive 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
I’ve been installing these boilers now…
I’ve been installing these boilers now for around 7 years fitting over 120 I’ve had very few issues.
Easily the most reliable boiler I’ve installed.
Well designed for installation and service/maintenance and a great range of controls for the combi and system boiler setups giving increased efficiency
17 May 2025
Unprompted review
Reply from ATAG Heating Technology UK Ltd
Dear Phill Peck
Thank you for your continued trust and loyalty over the past 7 years!
We're proud to hear that i-series of ATAG boilers have consistently delivered reliability and ease of installation for you.
Your hands-on experience and positive feedback mean a lot to us.
It’s great to know the design and control options are helping you provide efficient, high-quality installations for your customers.
Here's to many more successful installs!
Take care,
ATAG Heating Technology
Great value
This boiler was recommended to us by our plumber, we were a bit cautious cos they are not the cheapest but ATAG did not let us down.Very economical anc very quiet the controller takes a bit of getting used to but the info it’s holds is fantastic, the ability to remotely set it is also a great help at times.
15 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear Terry Lock
We're delighted to hear that the ATAG boiler has lived up to your expectations.
It's great to know you're finding it both economical and quiet — qualities we’re proud of.
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 understand that the controller can take a little getting used to, but we're glad you're finding its features, especially the remote access, useful.
If you ever need any help with the controls or have any questions, don’t hesitate to reach out!
Thank you for taking the time to review.
Warm regards
ATAG Heating Technology
Great service from ATAG
I had a problem with my ATAG boiler, I emailed them out of hours and by 8.40 the next morning I received an email from ATAG to say a plumber would be in touch and that the new part was being despatched to him. He called and arranged a time to fix the problem, then arrived as specified and fitted the part. Fantastic service.
15 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear Fred Hazleton
We're so pleased to hear that everything was handled promptly and smoothly—from your out-of-hours email to the quick response, part dispatch, and timely repair.
It's great to know our warranty partner was able to get your boiler back up and running efficiently.
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 taking the time to share your experience!
Warm regards
ATAG Heating Technology
The person I spoke to was very patient…
The person I spoke to was very patient and helpful and my question was answered.
14 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear David Doughton
Thank you so much for your kind words!
We're glad to hear that you had a positive experience and that your question was answered clearly.
We truly value your feedback and are always here to help if you need anything in the future.
Kind regards
ATAG Heating Technology
A energy efficient and very quiet boiler.
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. The app is great for remote functions too.
12 May 2025
Reply from ATAG Heating Technology UK Ltd
Dear Craig Fernee
We're thrilled to hear that you're enjoying the quiet operation, ease of use, and the added convenience of the app for remote functions.
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 that the system has helped lower your energy costs and that the long guarantee gives you peace of mind—even if you haven’t needed it!
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.
We truly appreciate your feedback and support.
Warm regards
ATAG Heating Technology
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