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... Mehr ansehen
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Das sagen Bewerter
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 el... Mehr ansehen
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Highly recommended. Ordering was easy online and really prompt installation. The installation was fantastic with nothing too much trouble. Really neat install although the boiler was moved to th... Mehr ansehen
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Simple, efficient process from start to finish. Placed the order online, submitted photos of my property & boiler was fitted 4 days later. I was kept informed at all stages. The fitter turned up on ti... Mehr ansehen
Unternehmen hat geantwortet
Unternehmensdetails
- Anbieter von Heizkesseln
- Ladestation für Elektrofahrzeuge
- Anlagenmechaniker Sanitär-, Heizungs- und Klimatechnik
- Gasinstallation
- Gasinstallateur
- Kessel- und Heizungstechnik
Über WarmZilla
Vom Unternehmen geschrieben
Click, pick, and we fit your perfect boiler!
Manufacturer's Guarantee
Get up to 10 years guarantee on your new boiler for added peace of mind.
Workmanship Guarantee
As well as getting a manufacturer's guarantee of up to 10 years, we also offer a 1-year workmanship guarantee on your installation.
Choice of Brands
We supply and fit models of Worcester Bosch, Ideal, Alpha, Viessmann and Vaillant boilers.
Do you need a new boiler? If yes, then please click the 'Get Boiler Quote' button above to get your quote within a couple of minutes.
We can supply and fit boilers, EV chargers and smart home products. We can also provide home covers for peace of mind.
The price we quote is FIXED and NOT an estimate which is not subject to change. No small print, no hidden extras - only great value for money.
Once you’ve chosen your product, you can then choose an installation date that suits you.
Buy your new home heating or smart home products easier and cheaper with WarmZilla. We are the UK's leading experts.
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.
Kontaktinformationen
Capital Tower, Greyfriars Road, CF10 3AG, Cardiff, Vereinigtes Königreich
- 02921 684 432
- ask@warmzilla.co.uk
- warmzilla.co.uk
4,6
Hervorragend
1986 Bewertungen
Hat 95 % seiner negativen Bewertungen beantwortet
Antwortet meist innerhalb von 1 Woche
So nutzt dieses Unternehmen Trustpilot
Erfahren Sie, woher die Bewertungen stammen und wie sie ausgewertet und moderiert werden.
great service
21. April 2026
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
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
Antwort von 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
Bewertung ohne vorherige Einladung
Antwort von 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. Jänner 2026
Bewertung ohne vorherige Einladung
Antwort von 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
Antwort von 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
Bewertung ohne vorherige Einladung
Antwort von 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
Bewertung ohne vorherige Einladung
Antwort von 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. März 2026
Bewertung ohne vorherige Einladung
Antwort von 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. März 2026
Bewertung ohne vorherige Einladung
Antwort von 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. März 2026
Bewertung ohne vorherige Einladung
Antwort von 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. März 2026
Bewertung ohne vorherige Einladung
Antwort von 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!
Couldn’t recommend warmzilla enough
Couldn’t recommend warmzilla enough, their staff are kind, polite and very helpful.
Tried 3 other companies before this. Had no joy.
Warmzilla saved the day!
Thank you!
5 Stars*
3. März 2026
Bewertung ohne vorherige Einladung
Antwort von WarmZilla
Hi Kyle,
Thank you so much for your fantastic review!
We’re thrilled to hear that our team could step in and get things sorted after your experiences with other companies.
It’s great to know you found our staff kind, polite, and helpful — that’s exactly the service we aim to provide. Your 5⭐ rating and recommendation mean a lot to us.
Thank you for trusting Warmzilla!
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. März 2026
Bewertung ohne vorherige Einladung
Antwort von 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. Dezember 2025
Bewertung ohne vorherige Einladung
Antwort von 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
Antwort von 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. März 2026
Antwort von 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.
Highly recommended.
Highly recommended.
Ordering was easy online and really prompt installation.
The installation was fantastic with nothing too much trouble.
Really neat install although the boiler was moved to the loft Rory the gas engineer was not phased ny anything and did such a neat job.
Thank you.
2. April 2026
Antwort von WarmZilla
Hi Chris,
Thank you for your fantastic review and recommendation.
We’re really pleased to hear that ordering online was easy and that the installation was carried out so promptly.
It’s great to know that moving the boiler to the loft was handled without any issues and that Rory delivered such a neat and professional installation. We’ll be sure to pass on your kind words to him — he’ll really appreciate the recognition.
Thank you again for choosing Warmzilla — we truly appreciate your feedback.
Had to chase the for our annual boiler service
Had to chase the for our annual boiler service. They do not automatically remind you or book in advance. When I rang to arrange service the engineer came out and condemned the boiler as unsafe. The time between my annual service date and me chasing them to arrange we were living with a dangerous boiler. When the engineer cut the boiler off he said WarmZilla would be in touch to discuss a replacement, they never did so I went to BoxT (very good service).
I would not recommend WarmZilla.
2. März 2026
Bewertung ohne vorherige Einladung
Antwort von WarmZilla
Hi Gary,
Thank you for your feedback. We’re very sorry to hear about your experience and the concerns you’ve raised.
We understand how worrying it must have been to discover your boiler was unsafe, and we sincerely apologise that you felt you had to chase for your annual service and did not receive follow-up contact after the boiler was condemned. This is not the level of service we aim to provide, and we appreciate you bringing this to our attention.
Your comments regarding service reminders and the lack of follow-up have been noted, as this is something we take very seriously and will review internally.
Thank you again for sharing your experience — feedback like this helps us identify where we need to improve.
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