Reported broken boiler Wednesday morning 48hrs later no contact made at all not to mention having an engineer booked. So with no joy water since Tuesday and no light of having this fixed anytime. noon... Toon meer
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Lees wat reviewers zeggen
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... Toon meer
Bedrijf heeft geantwoord
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... Toon meer
Bedrijf heeft geantwoord
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... Toon meer
Bedrijf heeft geantwoord
Bedrijfsgegevens
- Boiler leverancier
- Laadstation voor elektrische voertuigen
- Gasingenieur
- Gasinstallatieservice
- Gasfitter
- Ketel- en verwarmingsdienst
Info over WarmZilla
Geschreven door het bedrijf
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.
Contactgegevens
Capital Tower, Greyfriars Road, CF10 3AG, Cardiff, Verenigd Koninkrijk
- 02921 684 432
- ask@warmzilla.co.uk
- warmzilla.co.uk
4,5
Uitstekend
2K reviews
Heeft 90% van zijn negatieve reviews beantwoord
Reageert doorgaans binnen 1 week
Zo gebruikt dit bedrijf Trustpilot
Ontdek hoe ze hun reviews verzamelen, beoordelen en modereren.
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.
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
Antwoord van 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 maart 2026
Review zonder uitnodiging
Antwoord van 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.
Excellent service
Warmzilla`s website gave me a good choice of boilers and made it easy to pick one. After I picked one, I sent pictures over and no costs were added on. Engineer came out and fitted on the chosen day no hassles. Excellent job done. Very happy. Would recommend.
23 maart 2026
Antwoord van WarmZilla
Hi Jack,
Thank you for your fantastic review. We’re really pleased to hear that you found the website easy to use and that it gave you a good choice of boilers to suit your needs.
It’s great to know the process of sending photos was straightforward, with no unexpected extra costs, and that the installation went smoothly on the chosen day without any hassle. We’re delighted you’re very happy with the result.
Thank you for your recommendation — we truly appreciate your support.
Antwoord van WarmZilla
Hi Charles,
Thank you for the amazing feedback!
We’re delighted to hear you had such a great experience and rated our service 10/10.
We really appreciate your recommendation — it means a lot to the whole team.
Easy from start to finish
Easy from start to finish. Excellent price. The lads who fitted my boiler were great.
23 maart 2026
Antwoord van WarmZilla
Hi,
Thank you for your great review.
We’re really pleased to hear the whole process was easy from start to finish and that you were happy with the price.
It’s also great to know the engineers who fitted your boiler did a great job — we’ll be sure to pass on your kind feedback to them.
Thanks again for choosing Warmzilla!
Great communication and quick install
Great communication and quick install, Scott came out and changed my old standard system to combi boiler. He kept me informed all through the job and ensured everything was completed to a high standard.
19 maart 2026
Antwoord van WarmZilla
Hi James,
Thank you for your great review. We’re really pleased to hear you were happy with the communication and quick installation.
It’s fantastic to know Scott kept you informed throughout and completed the conversion to a combi boiler to a high standard. We’ll be sure to pass on your kind feedback to him — he’ll really appreciate it.
Thanks again for choosing Warmzilla!
Boiler service good, everything else was poor
Where the service of the boiler was top notch, having to be at least 2 months from boiler should have been done was disappointing part of the process. Having to keep getting in touch to see when the boiler was going to be serviced was not good.
15 januari 2026
Antwoord van WarmZilla
Hi John,
Thank you for your feedback.
We’re really pleased to hear that the boiler service itself was top notch, but we’re very sorry to hear about the delays and the need to chase for updates.
Waiting that long for a service and having to follow up multiple times is not the experience we want for our customers, and we completely understand your frustration. Your comments are really important and will be shared with the team to help improve our scheduling and communication.
Thank you again for bringing this to our attention, and we appreciate your patience.
ZERO communication
ZERO communication.
Spent a grand getting an EV charger installation booked. They allowed me to book a good date.
As soon as they had my money they went quiet. Ended up having to speak to their live chat nearly every day. Excuses about suppliers letting them down, but they made no attempt to update me. On day of delivery, they say their supplier tried to deliver but nobody replied. I was here all day and nothing showing on ring doorbell.
Excuse after excuse and no communication. Even after raising a written complaint I was ignored.
AVOID
19 maart 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi Nick,
Thank you for your review.
I can see that we are currently in contact with you regarding this matter and are working to resolve it as quickly as possible.
Thank you for your patience.
I had an extremely good service from…
I had an extremely good service from start to finish. Staff were very informative snd removal of my old boiler and installation of the new one was carried out efficiently. Overall a good experience.
18 maart 2026
Antwoord van WarmZilla
Hi Sharmini,
Thank you for your kind review.
We’re delighted to hear you had such a positive experience from start to finish and found our team informative throughout.
It’s great to know the removal of your old boiler and installation of the new one was carried out efficiently.
We really appreciate your feedback and are pleased everything went smoothly for you.
Terrible service
I have home care boiler cover with Warmzilla. They have been awful. I have had a problem with my boiler for over 6 weeks now and it’s still not fixed.
It takes days for the company to reply to my emergency breakdown requests and then days more to get an engineer out. I waited 2 wees for 1 engineer.
In the mean time I’m paying a fortune in bills because my boiler won’t turn the heating off!
I’ve finally had an engineer identify the problem but have been waiting a week to hear from Warmzilla about getting the problem fixed now we know what the problem is.
Terrible service. Won’t be renewing my contract
14 maart 2026
Review zonder uitnodiging
Antwoord van WarmZilla
Hi,
Thank you for taking the time to share your feedback. We’re very sorry to hear about your experience and the frustration this has caused.
I can confirm that we are currently in contact with you and working to resolve the issue as quickly as possible.
Thank you again for bringing this to our attention.
Antwoord van WarmZilla
Hi Simona,
Thank you for your review! We’re delighted to hear you received excellent customer service.
We really appreciate you taking the time to share your feedback.
Easy to use website
Easy to use website, great communication, didnt hassle me with a sale, I chose the next working day for installation. Engineer was professional, friendly and all installed within half a day! cant fault warmzilla on any part of the process
13 maart 2026
Antwoord van WarmZilla
Hi Hannah,
Thank you for your fantastic review.
We’re delighted to hear that you found the website easy to use and appreciated the clear communication without any sales pressure. It’s great to know the next-day installation worked well for you and that the engineer was professional, friendly, and able to complete everything within half a day. We’re really pleased the whole process met your expectations from start to finish.
Thank you for choosing Warmzilla and for your kind feedback — it’s truly appreciated.
Antwoord van WarmZilla
Hi,
Thank you for your review!
We’re really pleased to hear you had a great experience and appreciate you taking the time to share your feedback.
Antwoord van WarmZilla
Hi,
Thank you for your lovely review!
We’re really pleased to hear you received great service, and we’ll be sure to pass your kind words on to Caryl. She’ll really appreciate the mention.
Thanks again!
Combi boiler installation
We are very pleased with the job quick and professional would highly recommend great work by Gary and Josh.
9 maart 2026
Antwoord van WarmZilla
Hi,
Thank you for your kind review.
We’re really pleased to hear you’re happy with the work and that everything was completed quickly and professionally. We’ll be sure to pass your great feedback on to Gary and Josh — they’ll really appreciate it.
Thank you for the recommendation!
Simple
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 time, did a good job, tidied up & took away the old boiler & all other rubbish from the job. Would highly recommend WarmZilla.
9 maart 2026
Antwoord van WarmZilla
Hi,
Thank you for your fantastic review.
We’re really pleased to hear that the whole process was simple and efficient from start to finish, and that the online ordering and photo submission made things straightforward for you.
It’s great to know you were kept informed throughout and that the installer arrived on time, completed the job to a high standard, and left everything clean and tidy while removing the old boiler and waste.
Thank you for your recommendation — we truly appreciate your support and are delighted you chose WarmZilla.
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