ATAG Heating Technology UK Ltd Reviews 4,962

TrustScore 4.5 out of 5

4.7

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Review summary

Created with AI, based on recent reviews

Evaluating 178 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the excellent service and the professional, highly skilled staff. Many people are very impressed with the product's build quality, quiet operation, and efficiency. The extensive warranty offered is also a significant positive point for many consumers, providing peace of mind. However, some people were dissatisfied with the warranty coverage, reporting issues where repairs were not honored or were delayed. A few other people also felt that finding qualified engineers for service was challenging, as some local technicians were reluctant to work on their boilers.

What people talk about most

Service

Clients share positive opinions on service, frequently highlighting promptness and efficiency. Many reviewers... See more

Staff

Reviewers mention positive feedback about staff. Customers frequently praise the professionalism,... See more

Product

Customers consistently note positive experiences with product quality and performance. Many reviewers praise... See more

Warranty

Consumers find the warranty to be a significant positive aspect. Many reviewers highlight the extensive... See more

Quality

Users describe positive interactions with quality, consistently praising the build and performance. Many... See more

Reviews shaping this summary

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

Company replied

Rated 5 out of 5 stars

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 anoth... See more

Company replied


Company details

  1. Boiler Supplier
  2. Boiler Manufacturer
  3. Boiler and 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

4.7

Excellent

TrustScore 4.5 out of 5

5K reviews

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Replied to 100% of negative reviews

Typically replies within 48 hours

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Rated 5 out of 5 stars

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

January 8, 2026
ATAG Heating Technology UK Ltd logo

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

Rated 5 out of 5 stars

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.

January 2, 2026
ATAG Heating Technology UK Ltd logo

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

Rated 1 out of 5 stars

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.

January 6, 2026
Unprompted review
ATAG Heating Technology UK Ltd logo

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

Rated 5 out of 5 stars

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.

January 5, 2026
ATAG Heating Technology UK Ltd logo

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

Rated 1 out of 5 stars

It’s Jan 2nd and the weekend is here.

It’s Jan 2nd. It’s turned exceptionally cold. I can’t get my central heating to work as a consequence of there being some sort of glitch with the company’s software.
Snow is forecast and now it’s Friday evening. I have no idea when I’ll be able to turn the heating on. I was told over the weekend a message could be left on an emergency hot line.
It’s not the first time this has happened. I cannot tell you just how annoying this is…it feels the same as if I’d bought a lift jacket only to find out when putting it on I sink.
I was talked into going with ATAG by a local firm and paid a premium for it.
Do you think I’d would go with ATAG again?

January 2, 2026
Unprompted review
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear JustAnswer Customer

Thank you for taking the time to share your feedback.

We’re sorry to learn that you’ve experienced issues with your ATAG boiler during the extremely bad weather

To ensure this matter can be investigated and responded to, can you please email me at d.allan@atagheating.co.uk.

Kind regards
Dawn Allan
Head of Operations

Rated 5 out of 5 stars

Super service

Our Worcester boiler broke down on the 20th of December Which sent us into panic with Christmas only 5 days away However A big thank you to all at Atag for the prompt response from purchase to installation We had a new boiler giving us heating and hot water by the afternoon of the 23rd December This boiler is far superior than the previous one we had It's definitely a five star from us Thank you

December 23, 2025
Unprompted review
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear customer

Thank you for sharing your experience and for the five-star feedback.

We understand how stressful a boiler breakdown can be—especially so close to Christmas—so we’re delighted we could help get your heating and hot water restored so quickly.

It’s great to hear you’re pleased with the performance of your new boiler and that it’s an improvement on your previous one.

We’ll pass your thanks on to everyone involved, and we really appreciate you choosing ATAG.

Please ensure that you have your boiler serviced annually by a Gas Safe registered engineer to maintain your lengthy warranty.

Kind regards
ATAG Heating Technology

Rated 5 out of 5 stars

Engineer arrived on time,

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 in good and best efficient condition.
Excellent job what more can you ask for.
Thanks Atag.

December 27, 2025
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Nuala

Thank you for such a detailed and positive review.

We’re delighted to hear that the engineer arrived on time, carried out a thorough job, and was able to offer clear advice on keeping your boiler 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.

Kind regards,
ATAG Heating Technology

Rated 5 out of 5 stars

Speedy resolution under warranty

Sent out an engineer to replace a PCB under warranty, came next day and heating back on for Christmas. Thanks you

December 21, 2025
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Clive Eley

Thank you for taking the time to leave this feedback.

We’re really pleased to hear the issue was resolved quickly and that our engineer was able to get your heating back up and running in time for Christmas.

We’ll be sure to pass your thanks 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.

Kind regards
ATAG Heating Technology

Rated 1 out of 5 stars

Do not buy their boilers

Do not buy their boilers! Absolute shambles of a company the past couple of years.
Stick with the more reputable household brands.
ATAG’s warranties and after sales aren’t worth the paper they’re written on.

December 18, 2025
Unprompted review
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Ben

We’re sorry to hear about your experience and that you feel let down. We take all feedback seriously, as it helps us identify where improvements are needed. Our aim is always to provide reliable products backed by strong warranty support, and we regret that this was not your experience.

If you’re open to it, I’d welcome the opportunity to look into your concerns further and see if there’s anything we can do to resolve the situation. Please contact myself by emailing d.allan@atagheating.co.uk with your details so I can review your case properly.

Kind regards
Dawn Allan
Head of Operations
ATAG Heating Technology

Rated 5 out of 5 stars

Called Atag local engineer on a Friday…

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 the Friday afternoon. Perfect service. Really can’t fault quickness and attitude of engineer.

December 12, 2025
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Karen Jones

Thank you for your great feedback.

We’re delighted to hear that after contacting ATAG, an earlier appointment was arranged and the engineer was able to attend on the Friday afternoon. Providing a fast, flexible service is very important to us, and it’s wonderful to know the quick response and the engineer’s positive attitude made such a good impression.

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 – it’s very much appreciated.

Best wishes
ATAG Heating Technology

Rated 5 out of 5 stars

Epic Service from Start to Finish

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 changed the parts and left where he worked like he had never been here. Very nice experience indeed I can honestly say it exceeded all expectation the service was brilliant.

December 17, 2025
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Leon

Thank you so much for taking the time to share such a positive review.

We’re really pleased to hear that ATAG were able to arrange a visit so quickly and that Tommy from Harvey’s provided such a professional and efficient service. It’s great to know he diagnosed the issue promptly, completed the repair to a high standard, and left everything so tidy. We’ll be sure to pass on your kind words to him and 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.

Your feedback means a lot to us, and we’re delighted that the service exceeded your expectations.

Kind regards
ATAG Heating Technology

Rated 1 out of 5 stars

AVOID AVOID AVOID

AVOID ATAG get a vaillant or a viessmann

The boiler itself is good it's the small issue of you need ATAG installers afterwards. They tell you any gas safe engineer can work on it, yea good luck finding one, spoken over a dozen they don't want to know as soon they find out it's an ATAG.

My local ATAG installer is completely unreliable so now I'm left with a boiler leaking water, the condensate trap seems to be a weak point it's leaked a few times and yet again the ATAG installer is not returning my calls.

I have call & message logs on my phone to prove this, and I've always given him plenty of notice it's not like I'm expecting him to drop everything and come here, I work in electrical installations myself I know what it's like juggling installs and callbacks etc. I never ever leave my customers hanging like this it's utterly ridiculous.

ATAG dont want to know, they won't supply me with other installers in my area.

It's a headache I just don't need, my boilers 6 years old and I'm going to have it replaced with a valiant, I'm done with this.

December 17, 2025
Unprompted review
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Jon Buggins

Thank you for taking the time to share your feedback.

We’re sorry to learn that you’ve experienced issues with contacting your Installer in regards to the leaking condensate trap.

I called and left a message for you this afternoon, as I would welcome the opportunity to discuss this with you and explore how we can resolve the matter.

To ensure this matter is resolved promptly, can you please call me on 0800 680 0100, selecting option 5.

Kind regards
Dawn Allan
Head of Operations
ATAG Heating Technology

Rated 5 out of 5 stars

Great 👍

Someone else dealt with the problem

December 10, 2025
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear david johnson

Thank you for taking the time to review.

We are pleased that our warranty engineer dealt with the issue with your boilers, saving you from resolving the issue yourself.

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

Rated 5 out of 5 stars

After the boiler losing pressure at…

After the boiler losing pressure at random times the engineer narrowed this down to a air purge valve, replaced and fixed very professionally and also followed up with a check call.. great service.

December 9, 2025
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Jason B

Thank you for sharing your experience!

We’re glad to hear that our Warranty Partner was able to identify and resolve the issue with your boiler so efficiently, and that the follow-up call provided extra reassurance.

We’ll be sure to pass on your kind words—our team takes pride in delivering thorough and professional 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.

Warm regards
ATAG Heating Technology

Rated 4 out of 5 stars

The engineer was really good

The engineer was really good, nothing was to much, reason it’s not a 5 is because I always seem to get an issue with the boiler when I get it serviced.

December 4, 2025
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear zoe

Thank you for your feedback. We’re really glad to hear the Warranty Partner provided great service and took good care of everything during the visit.

We’re sorry to hear you’ve experienced issues around the time of servicing.

To ensure your boiler continues to perform optimally and to maintain your warranty, we ask that it is serviced annually by a qualified Gas Safe Registered engineer. Regular servicing helps identify any potential issues early—even those that may not yet be noticeable—so your boiler continues to operate safely and efficiently.

Kind regards
ATAG Heating Technology

Rated 5 out of 5 stars

Atag boiler warranty work

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 working properly again. Full marks to him. Very satisfied tenant and landlord! (p.s., I'm in u.k., not u.s. as trustpilot suggests!)😊

December 4, 2025
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear MR IAN FORREST

Thank you for your great review!

We’re really pleased to hear that your pump issue was resolved quickly and effectively, and that our Warranty Partner made sure everything was working perfectly before leaving. We’ll be sure to pass on your praise—dedication like that deserves recognition.

It’s wonderful to know both you and your landlord are satisfied with the service.

And thanks for the note about Trustpilot locations — that made us smile! 😊

Best wishes
ATAG Heating Technology

Rated 5 out of 5 stars

From the first report of a fault on my…

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 followed up on my calls , they checked with the contract company making sure they kept the appointments, reported back to me at every point and kept me updated. A special mention for the representative from the technical team, unfortunatley I cannot name him but I hope he reads this review and realises how much I appreciated his endeavours on my behalf. Thank you so much. All your hard work appreciated

December 5, 2025
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Lilian

Thank you for taking the time to share such a thoughtful review. We’re delighted to hear that our team provided the level of care, clarity, and support you deserved throughout the entire process. Ensuring you're kept informed and supported is incredibly important to us, and your kind words mean a great deal.

We’ll make sure your appreciation is passed on to the technical representative who assisted you—he’ll be very glad to know his efforts made a 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.

Best wishes
ATAG Heating Technology

Rated 5 out of 5 stars

Such a rare thing nowadays to find a…

Such a rare thing nowadays to find a wonderful caring company,Atag but especially one employee,Kenny,in sales ,I had to buy an replacement battery for my Atag thermostat,at 75 years old I'm not confident buying on line Kenny was so polite and caring and helped every step of the way and said I would receive it the next day ,well through no fault of Atag it didn't arrive Dpd hadn't picked up , but it came the following day ,and the biggest surprise was they sent me the most beautiful flowers to apologize for the inconvenience,thankyou Kenny and Atag

December 4, 2025
Unprompted review
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Sue Hinch

Thank you so much for sharing your lovely review.

We’re delighted to hear that Kenny was able to support you with such care and patience—he’ll be thrilled to know his help made a difference.

We truly appreciate your understanding regarding the delivery delay, and we’re glad the flowers brought a smile.

We take pride in offering excellent customer service from start to finish, and it’s wonderful to know we've met your expectations.

Kind regards, ATAG Heating Technology

Rated 5 out of 5 stars

First problem in 4 years and it was…

First problem in 4 years and it was dealt with quickly. Now back up and running again. Thanks for the speedy response.

December 2, 2025
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Mr Vincent Coupes

Thank you for your kind feedback!

We’re glad we could resolve the issue quickly and get your boiler 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.

Warm regards
ATAG Heating Technology

Rated 5 out of 5 stars

The best boiler by far

Atag boilers are by far the best on the market.
Customer service is incredible and the unit itself is just Soo advanced.
Saves you a small fortune to run

Amazing!

November 28, 2025
Unprompted review
ATAG Heating Technology UK Ltd logo

Reply from ATAG Heating Technology UK Ltd

Dear Mark Humphry

Thank you so much for your amazing review!

We’re thrilled to hear that you’re loving our ATAG boilers.

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 team works hard to provide great support, so it’s wonderful to know you’ve had such a positive experience.

We really do appreciate feedback from our ATAG Select Partners, like yourself, - the engineers who install our boilers.

If you ever need anything, we’re always here to help.

Kind regards
ATAG Heating Technology

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