Combi-boiler replacement completed neatly by polite and competent gas-fitter in one visit lasting about 5 hours. Seems to be working fine. A follow-up visit was offered to improve the boiler contro... Mehr ansehen
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Das sagen Bewerter
A very good service in terms of a video survey in advance of work to look at the boiler and flue etc, very professional. Customer service was good although sometimes it was hard to get through. Disapp... Mehr ansehen
Amazing service! I ordered a new boiler and it was delivered and fitted just two days later. The gas engineer was brilliant and highly professional, swapping my old system for the new one in a single... Mehr ansehen
We got air con across two bedrooms and our living room. There were a few bumps along the way with scheduling and pipe routing, but WarmZilla really bent over backwards to get it right, listening prope... Mehr ansehen
Unternehmen hat geantwortet
Unternehmensdetails
- Anbieter von Heizkesseln
- auch in
- Anlagenmechaniker Sanitär-, Heizungs- und Klimatechnik
- Gasinstallateur
- Gasinstallation
- Kessel- und Heizungstechnik
- Ladestation für Elektrofahrzeuge
Über WarmZilla
Vom Unternehmen geschrieben
WarmZilla is an online home services provider transforming how the UK buys and installs new boilers, EV chargers, air conditioning, and home heating solutions. Founded by experienced Gas Safe engineers, WarmZilla was built to eliminate pushy salespeople, hidden fees, and lengthy home visits by taking the entire quote and ordering process online. Using our quick online survey, customers receive fixed-price, tailored quotes in minutes. You simply choose the ideal boiler from leading brands - such as Worcester Bosch, Ideal, Vaillant, and Baxi - pick your preferred installation date, and let our team handle the rest. Every installation is carried out by handpicked, local Gas Safe registered engineers ("WarmInstallers") who deliver exceptional workmanship, complete system cleanses, and a clean, hassle-free setup.
We back all our work with a 1-year workmanship guarantee, top manufacturer warranties up to 10 years, and a price match promise. To make home upgrades accessible to everyone, we offer flexible payment options, including 0% interest-free finance. Beyond boiler installations, WarmZilla provides comprehensive home cover plans, annual servicing, emergency repairs, and EV charger installations across England, Scotland, and Wales.
Whether you need a quick boiler replacement or routine home care, WarmZilla delivers speed, transparent pricing, and 24/7 customer support - making home services simpler, fairer, and completely stress-free.
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 684 152
- ask@warmzilla.co.uk
- warmzilla.co.uk
4,3
Hervorragend
2130 Bewertungen
Bittet Kunden um Bewertungen
Das Unternehmen lädt seine Kunden ein, Bewertungen zu hinterlassen – ob positive oder negative.
Hat 72 % seiner negativen Bewertungen beantwortet
Antwortet meist innerhalb von 2 Wochen
So nutzt dieses Unternehmen Trustpilot
Erfahren Sie, woher die Bewertungen stammen und wie sie ausgewertet und moderiert werden.
I am absolutely delighted with my new…
I am absolutely delighted with my new boiler .
The two boys that came to do the installation were pleasant and helpful and explained everything to me .
They are a credit to their company .
28. Mai 2026
Antwort von WarmZilla
Hi Alexis,
Thank you for your wonderful review. We're absolutely delighted to hear that you're so pleased with your new boiler.
It's great to know that our installation team provided a positive experience and took the time to explain everything clearly. We take great pride in our engineers, and we're sure they'll be delighted to hear your kind words.
Thank you for choosing WarmZilla. We hope you enjoy many years of reliable heating from your new boiler.
Antwort von WarmZilla
Thank you for your great feedback on WarmZilla. We’re really pleased to hear you were happy with the prompt installation and professional service provided.
We truly appreciate your support and thank you for choosing WarmZilla.
Great price, good communication
Great price, great customer service, thorough and friendly installer. Exactly how it should be
26. Mai 2026
Antwort von WarmZilla
Thank you for the fantastic review! We’re delighted to hear you were happy with the price, communication, and customer service from WarmZilla.
It’s great to know the installer was thorough and friendly too — exactly the experience we aim to deliver for every customer. Thanks again for choosing WarmZilla and for taking the time to share your feedback.
After months of stress and repeated…
After months of stress and repeated chasing, WarmZilla have finally rectified the flue installation issue with my boiler after concerns were raised about whether it had originally been installed correctly.
While I appreciate that the issue has now been resolved, the overall experience has been extremely frustrating and time consuming.
Communication throughout the process was poor, and I had to repeatedly follow things up myself.
I also paid an additional £150 on the day of installation for electrical work relating to a fused spur, yet I still have not received the Minor Electrical Installation Works Certificate despite requesting it multiple times.
The installation issues, delays and lack of documentation caused unnecessary worry and inconvenience. Credit where it’s due that the flue issue has now been corrected, but the aftercare and handling of the complaint have fallen well below what I expected.
26. Mai 2026
Bewertung ohne vorherige Einladung
Antwort von WarmZilla
Thank you for taking the time to leave your feedback. Whilst we disagree with some parts of the review as we do not believe all aspects are fully accurate, we do accept that there were issues during the process that could have been handled better.
We appreciate you acknowledging that the flue issue has now been resolved, and we’re sorry the experience caused frustration along the way. Feedback, both positive and negative, is important to us as we continue improving our service at WarmZilla.
Take care, and please remember we’re always here to support you if you need us in the future.
Filled form, chat with Agent - No Quote Time Wasted
Filled form no results and then also discussed with chat REPRESENTATIVE but they unable to send a quote...simply wastage of time... customer need delivery....
25. Mai 2026
Bewertung ohne vorherige Einladung
Antwort von WarmZilla
Thank you for your feedback. We’re really sorry to hear that your experience didn’t meet expectations, especially after taking the time to complete the form and speak with our team.
Unfortunately, in some cases we’re unable to provide an instant quote if the information provided doesn’t meet the criteria required for an accurate or safe estimate. That said, we completely understand your frustration and appreciate that your time is valuable.
At WarmZilla we’re constantly working to improve both our systems and communication to make the process smoother for customers. Thank you again for your honest feedback.
Antwort von WarmZilla
Thank you for your great review of WarmZilla. We’re delighted to hear you found the boiler service simple and straightforward, exactly how it should be!
Excellent communication is something we work hard on, so it’s fantastic to hear that reflected in your experience. Thanks again for choosing WarmZilla — we really appreciate your support.
Great person
Great person, very knowledgeable. He has found a fault with the boiler that wasn't dealt with on the last repair done. Now I know I will log another warranty with warmzilla with the humming the boiler does and the f2 fault.
23. Mai 2026
Antwort von WarmZilla
Thank you for your review and for your continued trust in WarmZilla. We’re really pleased to hear our engineer was knowledgeable and able to identify an issue that had previously been missed.
We understand how frustrating ongoing boiler faults can be, so it’s great that the cause has now been identified.
Thanks again for your feedback — it’s greatly appreciated.
Really pleased overall with WarmZilla…
Really pleased overall with WarmZilla and would probably give 4.5 stars if Trustpilot allowed it.
The boiler installation itself was excellent value for money and the engineers were professional and knowledgeable. They also resolved a fairly significant issue for me in the end, which I appreciated.
The only reason I’ve knocked half a star off is communication. During the first visit/issue I felt a bit left in the dark and wasn’t kept updated properly, which was frustrating at the time.
That said, once things got moving again they were very good and the final outcome was genuinely strong. I’d still recommend them overall.
14. Mai 2026
Antwort von WarmZilla
Thank you for taking the time to leave such a detailed and balanced review for WarmZilla. We’re really pleased to hear you were happy with the installation, value for money, and professionalism of the engineers, especially that we were able to resolve the issue for you in the end.
We also genuinely appreciate the honest feedback regarding communication. Keeping customers updated throughout every stage is something we continually work on, and we understand how frustrating it can feel when communication falls short during important moments. Your comments are valuable and will help us improve the experience moving forward.
Thank you again for your recommendation and for choosing WarmZilla — it really does mean a lot to us.
Great price and quick installation
Great price and quick installation, guys on the phone were ace! The installation was done by Scott and his work is beyond excellent, like artwork is his pipework! We are delighted with the whole experience, thankyou for making our nightmare as easy as possible!
22. Mai 2026
Bewertung ohne vorherige Einladung
Antwort von WarmZilla
Thank you so much for the amazing review! We’re delighted to hear you were happy with both the price and speed of installation. We’ll be sure to pass your kind words onto Scott — he’ll love hearing that his pipework was described as artwork!
At WarmZilla we know how stressful boiler problems can be, so it means a lot to hear we helped make the process easier for you. Thanks again for choosing us and for taking the time to leave such fantastic feedback.
Great price and everything included
Great price and everything included. Brand new Shiney boiler working away keeping our home toasty and water hot. David our engineer was top bloke, did a fantastic job, highly recommend his work.
21. Mai 2026
Antwort von WarmZilla
Thank you for the brilliant feedback! We’re delighted to hear you’re happy with the price, the service, and your new boiler keeping the house warm and water hot 🔥
A big thank you as well for the kind words about David — we’ll be sure to pass this on to him. We’re proud to have top engineers like him representing WarmZilla. Thanks again for the recommendation!
Seamless from booking to installation.
Very easy and responsive communication from the start and an excellent boiler installation.
21. Mai 2026
Antwort von WarmZilla
Thank you so much for the great feedback! We’re really pleased to hear you found the communication easy and responsive throughout, and that you’re happy with your new boiler installation.
From all of us at WarmZilla, thank you for choosing us!
Fantastic price & service
Fantastic price & service. Our boiler developed a water leak and we decided it was time to retire it as it was 23 year old. I went straight online and found warmzilla. Was really happy with the price so made my purchase. The engineer Gary turned up exactly when they said he would and done a fantastic job. Couldn’t be happier. Well done warmzilla
21. Mai 2026
Antwort von WarmZilla
Hi,
Thank you for your fantastic review!
We’re really pleased to hear you found us online and were happy with both the price and the service provided.
After 23 years, it definitely sounds like your old boiler had earned its retirement! We’re delighted Gary was able to get everything sorted for you and that the installation went smoothly. We’ll be sure to pass on your kind words to him, he’ll really appreciate it.
Thank you again for choosing WarmZilla and for taking the time to share your experience.
Richard the Engineer turned up in…
Richard the Engineer turned up in perfect time, an apsolute Gent and did a great job much quicker than I thought. New system boiler in place of an old regular boiler. Everything great..
20. Mai 2026
Antwort von WarmZilla
Hi Thomas,
Thank you for your fantastic review.
We’re really pleased to hear Richard arrived right on time and did such a great job replacing your old regular boiler with the new system boiler.
We’ll be sure to pass on your kind words to Richard. It’s great to know the work was completed quicker than expected and that everything went smoothly.
Thank you again for choosing WarmZilla and for taking the time to share your experience.
Efficient and tidy fitters.
Our boiler was fitted on the second attempt after the first fitter broke down on route. The men were prompt and efficient fitting the new boiler and left the place tidy. Unfortunately as yet the boiler doesn't seem to be running as often as we'd like and I've yet to understand it. I have worked out how to put it on for a few hours which helps but more research is needed. I've looked at the hub but not found information yet.
12. Mai 2026
Antwort von WarmZilla
Hi,
Thank you for your review.
We’re sorry for the delay caused by the initial breakdown, but we’re pleased to hear our engineers arrived promptly on the second visit and carried out the installation efficiently and tidily.
We understand it can take a little time to get familiar with a new boiler and heating controls. It’s good to hear you’ve already found a temporary solution, but we’d be more than happy to help you get everything set up properly so the system runs exactly as you’d like.
Please feel free to contact our team and we can talk you through the settings.
Thank you again for your feedback and for choosing us.
Yearly boiler service
Yearly boiler service was carried out smoothly with excellent communication. The engineer showed up on time and was very respectful and well mannered.
I will be using this service again.
Thanks.
1. Februar 2026
Antwort von WarmZilla
Hi,
Thank you for your kind review.
We’re delighted to hear your annual boiler service went smoothly and that you were happy with the communication throughout. It’s great to know our engineer arrived on time and provided a respectful and professional service.
We really appreciate your support and look forward to helping you again in the future. Thanks again!
Good service
8. Mai 2026
Antwort von WarmZilla
Hi,
Thank you for your review!
We’re pleased to hear you received good service and appreciate you taking the time to share your feedback.
thoroughly recommend
Super quick. Kept informed. The engineer (Marcos) was outstanding in every way. Professional, polite, helpful, patient and highly skilled. Incredible how much he achieved in less than 2 days and left our house better than he found it (thanks for taking out some other old pipes). Can't recommend WarmZilla and especially Marcos enough. Many thanks.
5. Mai 2026
Bewertung ohne vorherige Einladung
Antwort von WarmZilla
Hi Richard,
Thank you so much for your fantastic review.
We’re delighted to hear you were kept informed throughout and that the installation was completed so quickly.
It’s especially great to hear such amazing feedback about Marcos. We’ll be sure to pass on your kind words — he’ll be thrilled to know his professionalism, skill, and care made such a positive impression. Going the extra mile to leave your home better than he found it is exactly the standard we aim for.
Thank you for your recommendation and for choosing us— we truly appreciate your support.
Good value service
We had ongoing issues with our boiler and struggled a bit with contacting Warmzilla, however once we had established communication an engineer was found and came to us within a day, and our agent was extremely helpful. A good service for the price we pay.
6. Mai 2026
Bewertung ohne vorherige Einladung
Antwort von WarmZilla
Hi,
Thank you for taking the time to share your feedback.
We’re sorry to hear there were initial difficulties reaching us regarding your boiler issue.
We’re pleased that once contact was established, an engineer was arranged promptly and attended within a day, and that your agent was helpful throughout. It’s good to know you found the service to be good value for the price you pay.
For future reference, there are several ways to contact us, including telephone, live chat, our online enquiry form, email, and WhatsApp.
We really appreciate your honest feedback, as it helps us continue to improve, and we’re glad we were able to resolve things for you.
First time needing a new boiler and…
First time needing a new boiler and lots of companies to choose from.
Warmzilla promised a smooth process and definitely delivered.
Their chosen engineer Richard was knowledgeable, clean working and polite. Completed the work in the time frame specified and all for a reasonable price.
Communication through WhatsApp made it extra easy.
1. Mai 2026
Bewertung ohne vorherige Einladung
Antwort von WarmZilla
Hi,
Thank you for your detailed review.
We’re really pleased to hear that your first experience of getting a new boiler went smoothly and that we delivered on the promise of a simple, stress-free process.
It’s great to know Richard provided such a professional service — being knowledgeable, tidy, and polite throughout the installation. We’re also glad the work was completed within the agreed timeframe and at a fair price.
We’re especially pleased you found the WhatsApp communication helpful in making everything easier.
Thank you for choosing Warmzilla and for your recommendation — it really means a lot to us.
Kian & Amy ( from Warmzilla ) were very…
Kian & Amy ( from Warmzilla ) were very helpful / replied to my questions & concerns very quickly. They kept me updated with progress of the order & delivery process. Even the Installation team were polite & professional
1. Mai 2026
Antwort von WarmZilla
Hi,
Thank you for your kind review.
We’re really pleased to hear that Kian and Amy were able to support you quickly and keep you informed throughout your order and delivery. It’s also great to know our installation team made a positive impression.
We’ll be sure to pass your feedback on to the team.
Thanks again for choosing us!
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