I had a AC unit fitted and cannot thank the company and Engineer enough. i had fantastic service from the call centre especially Abbi who went out of her way to explain everything in great detail and... Toon meer
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Nothing wrong with actual service and the company was very helpful. Unfortunately for the 2nd year running , the booking date was not honoured and no call received to postpone visit. It’s just the... Toon meer
Boiler installation carried out. Kyle the engineer called ahead of time to inform me the time he was arriving. Him and the other engineer were very friendly and efficient. Few hours and the house was... Toon meer
Fast and efficient Amy is wonderful and very quick to reply . This is my second time using them and was taken care of properly. Website easy to navigate and staff very friendly. Shout out to Mason... Toon meer
Bedrijfsgegevens
- Boiler leverancier
- Gasfitter
- Gasingenieur
- Gasinstallatieservice
- Ketel- en verwarmingsdienst
- Laadstation voor elektrische voertuigen
Best Price Guarantee
We won't be beaten on price
If you find a cheaper price on a like-for-like installation elsewhere, we guarantee to beat the price and take an extra £50 off your order.
Contactgegevens
Capital Tower, Greyfriars Road, CF10 3AG, Cardiff, Verenigd Koninkrijk
- 02921 684 432
- ask@warmzilla.co.uk
- warmzilla.co.uk
4,3
Uitstekend
2K reviews
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Heeft 82% van zijn negatieve reviews beantwoord
Reageert doorgaans binnen 2 weken
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Antwoord van WarmZilla
Hi,
Thank you for your review!
We’re really pleased to hear you received excellent customer care and a quick response.
We truly appreciate you taking the time to share your feedback.
Very positive experience
Paid the amount we were quoted. The engineer was very nice and managed everything in a day. We were very impressed and incredibly grateful after a very cold start to moving into our forever home.
8 april 2026
Antwoord van WarmZilla
Hi Emily,
Thank you so much for your kind review!
We’re really pleased to hear that everything went smoothly and that our engineer was able to get everything sorted for you in a single day. Moving into a new home can be stressful, so we’re glad we could help make your start a warm and comfortable one.
Wishing you many happy years in your forever home, and thank you again for choosing us!
Let down by British Gas, but Warmzilla didn't disappoint!
British Gas had let me down when it came to providing a quote so I thought I'd go directly to the manufacturer for a price.
Warmzilla are the national installation partners for Worcester Bosch and their pricing was very competitive and the agent I dealt with (Kian) for the quote and survey (via a WhatsApp video call) was helpful, efficient and in no way overbearing or pushy for me to go ahead with the quote.
On the day of installation, everything went smoothly and the engineer that fitted the boiler was very tidy, friendly and professional, making sure that everything was left working as it should and made sure to answer any questions I had.
All in all, this was a first rate service and I would recommend them to friends and family and also use them again if the need arose.
22 april 2026
Antwoord van WarmZilla
Hi Kate,
Thank you for taking the time to leave such a detailed review, we really appreciate it.
We’re glad we could step in after your initial experience and provide a competitive quote and a smoother process. It’s great to hear that Kian made the survey straightforward and pressure-free, and that your installation day went smoothly with a tidy and professional finish from the engineer.
Your recommendation to friends and family means a lot to us, and we’re delighted that you were happy with the service from start to finish.
Thank you again for choosing Warmzilla—we’re always here if you need us in the future.
great service
21 april 2026
Antwoord van WarmZilla
Hi,
Thank you for your kind feedback!
We're really pleased to hear you were happy with the service.
If you ever need us again in the future, we’ll be more than happy to help.
Antwoord van WarmZilla
Hi David,
Thank you for your lovely feedback!
We're really pleased to hear that you found our team friendly and that the regular updates kept you well informed throughout.
We appreciate you choosing us and look forward to helping you again when the time comes.
The only problem I have is that I have…
The only problem I have is that I have to contact you every year to get my boiler serviced
17 april 2026
Antwoord van WarmZilla
Hi,
Thank you for your feedback—we really appreciate you taking the time to share it.
We understand that remembering to contact us each year for your boiler service can be a bit inconvenient. We’re always looking at ways to make this process easier for our customers, and your feedback is very helpful in highlighting this.
Thank you again for choosing us.
It would have been 5 stars but the…
It would have been 5 stars but the first time the engineer was supposed to be here to service our bolier they did not turn up so I had to get back to warmzilla and report it then they made another appointment and they turned up and the engineer was very professional
7 april 2026
Antwoord van WarmZilla
Hi Mark,
Thank you for your feedback.
We’re really sorry about the missed initial appointment and the inconvenience it caused.
We’re glad to hear that the follow-up visit went smoothly and that our engineer provided a professional service.
If there’s anything else we can help with, please don’t hesitate to get in touch.
I recently had an EV charger installed…
I recently had an EV charger installed by Warmzilla, and the entire experience from start to finish was exceptional. Communication was top tier throughout the process—I’ve honestly never experienced such high-quality customer service and aftercare.
From the initial contact, to arranging the appointment, and through to the installation itself, everything was handled in a professional and efficient manner. The installation was first class, and the team made the whole process smooth and stress-free.
Warmzilla truly sets the standard for how this type of service should be delivered. I wouldn’t hesitate to recommend them.
13 april 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi,
Thank you so much for your fantastic review!
We're absolutely delighted to hear that you had such a positive experience with your EV charger installation. Providing clear communication and first-class customer care is something we take great pride in, so it's wonderful to know this stood out to you.
We'll be sure to share your kind words with the whole team—they'll really appreciate knowing their professionalism and effort made the process smooth and stress-free for you.
Thank you again for choosing us and for recommending us. If you ever need any support in the future, we're always here to help.
Extremely Disappointed
Extremely Disappointed – Avoid if You Value Reliability and Safety
The ordering process was quick and easy, but everything after that was a nightmare. The installation was delayed by six weeks, with the engineer failing to turn up on four separate occasions. Each time I was promised a call back from customer service, but none ever came.
When the boiler was finally installed, the work was sloppy and unsafe — the chimney wasn’t fitted correctly, and the electrics were poorly done. Because of the chimney issue, smoke entered my home and made my family ill. It was terrifying and completely unacceptable.
After waiting again for corrections, I noticed a strong smell of oil that has only worsened. Three weeks later, my oil levels have dropped, suggesting a leak in the pipework, and the boiler is losing pressure too.
What should have been a straightforward job turned into weeks of stress, health risks, and constant chasing. I would strongly advise anyone considering this company to look elsewhere until they improve their reliability, communication, and workmanship.
27 januari 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi,
Thank you for your feedback.
This is currently with our senior management team for who will be in touch.
We appreciate your patience while this is being investigated.
Outstanding customer care
Outstanding customer care. The engineers were very informative, professional and tidied up after they'd completed the installation. I would highly recommend. Thank you.
9 april 2026
Antwoord van WarmZilla
Hi Kate,
Thank you so much for your kind words and recommendation.
We're delighted to hear that you were pleased with the service provided by our engineers and that their professionalism and attention to tidiness made a positive impression.
Your feedback means a lot to us, and we truly appreciate you taking the time to share your experience. If you ever need any assistance in the future, we’ll be more than happy to help.
Thank you again for choosing us.
Great responsive service!
9 april 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi Rebecca,
Thank you for your great feedback!
We're pleased to hear that you found our service responsive.
We really appreciate you taking the time to share your experience and look forward to helping you again in the future.
Highly recommend warmzilla
Highly recommend warmzilla
Very reliable company with great communication.
3 april 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi,
Thank you for your review!
We’re thrilled to hear you found us reliable and appreciated our communication.
Your recommendation means a lot to us, thank you for your support!
Fantastic
Fantastic, efficient service from start to finish, all work was completed to a high standard and all completed on time, boiler now working great again, would highly recommend
31 maart 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi,
Thank you for your wonderful review!
We’re delighted to hear that the service was fantastic and efficient from start to finish, and that the work was completed to a high standard and on time.
It’s great to know your boiler is now working perfectly, and we really appreciate your recommendation.
Thank you for choosing us!
Superb Efficient Service
Efficient, professional service, arrived when expected, good communication throughout. Highly recommended
24 maart 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi Marc,
Thank you for your fantastic review!
We’re pleased to hear that our service was efficient and professional, that our team arrived on time, and that communication was clear throughout.
Your recommendation means a lot to us. Thank you for choosing Warmzilla!
Highly recommend
Top notch service. Highly Recommend. Thanks WarmZilla.
5 maart 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi,
Thank you for your review!
We’re thrilled to hear you received top-notch service and really appreciate your recommendation.
Thanks for choosing Warmzilla!
First time using this company to…
First time using this company to install a new boiler. Shopped around and did a lot of research with other companies.
Absolutely great service, team were spot on, from the initial interest through emails, all the way from install to completion.
Family and friends are now in the process of having work done and annual servicing.
23 maart 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi,
Thank you for your wonderful review!
We’re delighted to hear that your first experience with Warmzilla was so positive, from initial contact all the way through to installation completion.
It’s fantastic to know the team provided great service and kept everything running smoothly, and we’re thrilled your family and friends are now choosing us for their own boiler installations and annual servicing.
Your support and recommendation mean a lot to the whole team, thank you!
Absolutely fantastic company
Absolutely fantastic company with amazing customer service , they could not help enough , seamless from start to finish , hassle free and had my home nice and warm again,
Would never use anyone else again , top notch service ! thank you guys !
27 maart 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi Aaryn,
Thank you for such an amazing review!
We’re absolutely delighted to hear you found the whole process seamless and hassle-free from start to finish.
It’s great to know our team were able to help every step of the way and get your home warm again quickly, that’s exactly what we aim for. Your kind words about our customer service really mean a lot to us.
Thank you for your support and loyalty. We truly appreciate it!
Absolutely brilliant service from…
Absolutely brilliant service from Warmzilla. My parents’ boiler broke down during Christmas week, which is about the worst timing possible, but they managed to sort everything out incredibly quickly.
From the first contact, they were responsive, professional, and really reassuring. They understood the urgency, especially with it being over the festive period, and went above and beyond to get everything up and running again with minimal disruption.
The installation was smooth, the engineers were friendly and efficient, and everything was explained clearly. It made a stressful situation so much easier for my parents.
Highly recommend Warmzilla if you need a reliable and fast boiler replacement, especially when timing really matters.
22 december 2025
Review zonder uitnodiging
Antwoord van WarmZilla
Hi Laura,
Thank you so much for your wonderful and detailed review.
We’re delighted to hear that we were able to help your parents during such a difficult time, especially over Christmas when a boiler breakdown is the last thing anyone needs.
It’s great to know that our team were responsive, professional, and reassuring from the very first contact, and that the urgency of the situation was handled with care. We’re also pleased the installation went smoothly and that our engineers were friendly, efficient, and kept everything clear and easy to understand.
Making a stressful situation easier for your parents is exactly what we strive for, so your feedback really means a lot to us.
Thank you for your recommendation and for trusting Warmzilla when timing really mattered.
A very friendly man who gave adequate…
A very friendly man who gave adequate warning of visit. He was on time and respected my property. I am pleased
3 april 2026
Antwoord van WarmZilla
Hi Patricia,
Thank you for your kind review.
We’re really pleased to hear that the engineer provided good notice ahead of the visit, arrived on time, and treated your property with respect.
It’s great to know you were pleased with the service — we truly appreciate your feedback.
Brilliant service
Brilliant service, product quality and efficiency. Ordered a new boiler on Wednesday afternoon and it was installed by Thursday Lunchtime!
26 maart 2026
Antwoord van WarmZilla
Hi Alex,
Thank you for your fantastic review!
We’re delighted to hear you were happy with the service, product quality, and efficiency.
Getting your new boiler installed from Wednesday afternoon to Thursday lunchtime is exactly the kind of fast turnaround we aim to deliver, so it’s great to know everything went smoothly for you.
Thank you for choosing us we really appreciate your feedback.
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