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 le... Voir plus
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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... Voir plus
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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... Voir plus
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A company that gets customer service. If only all companies were like Warmzilla. Just made my second major purchase with them of air con having bought a boiler off them before. I also have a boiler co... Voir plus
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À propos de l'entreprise
- Fournisseur de chaudières
- Borne de recharge pour véhicules électriques
- Ingénieur gaz
- Service d'installation du gaz
- Gazier
- Fournisseur de chauffage
À propos de WarmZilla
Écrit par l'entreprise
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.
Coordonnées de contact
Capital Tower, Greyfriars Road, CF10 3AG, Cardiff, Royaume-Uni
- 02921 684 432
- ask@warmzilla.co.uk
- warmzilla.co.uk
4,5
Excellent
2 k avis
A répondu à 100 % de ses avis négatifs
Répond généralement dans un délai de 2 semaines
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Découvrez comment les avis de l’entreprise sont collectés, notés et modérés.
Very efficient service
Very efficient service. Friendly staff throughout the experience.
Excellent customer service.
Installers were efficient, friendly and knowledgeable.
29 décembre 2025
Avis spontané
Réponse de WarmZilla
Hi Amanda,
Thank you for your kind words!
We’re thrilled to hear that our installers were efficient, friendly, and knowledgeable, and that you had a positive experience with our customer service.
We really appreciate your feedback! 😊
I was really scared but the lady on the…
I was really scared but the lady on the front desk was so kind and patient with me. Made it a much better experince
31 décembre 2025
Avis spontané
Réponse de WarmZilla
Hi,
Thank you for sharing your experience! We’re so glad our team could make you feel comfortable and supported. It’s wonderful to hear that their kindness and patience helped make the experience better for you. 😊
Just had a brand new boiler installed
Just had a brand new boiler installed! Excellent service which was easy to use and the staff were excellent throughout the whole thing! Will recommend every time to family and friends.
29 décembre 2025
Avis spontané
Réponse de WarmZilla
Hi Alex,
Thank you so much for your fantastic review!
We’re thrilled to hear that the whole process was easy and that our team provided excellent service.
Your recommendation means a lot to us — we really appreciate you spreading the word to family and friends! 😊
Excellent service
Friendly and polite lads. Carried work out quickly and efficiently
30 décembre 2025
Réponse de WarmZilla
Hi Wendy,
Thank you for the kind review!
We really appreciate you taking the time to share your experience. It’s great to hear you found the team friendly and the work was carried out quickly and efficiently.
We’re glad we could help and look forward to working with you again in the future 😊
Horrific company to deal with
I have a monthly payment plan with WarmZilla which has been a completely unsatisfactory experience. It took ages to actually book a routine boiler service and MANY emails. Once it was serviced, the boiler was left dripping and leaking. It has been like this for 20 days and despite being reassured it was being dealt with urgently, it has still not been fixed. They simply do not care. Avoid this company at all costs. They are a scam and just want your money for no customer service.
10 décembre 2025
Avis spontané
Réponse de WarmZilla
Hi Matt,
We’re very sorry to read this and sincerely apologise for the experience you’ve had — this is not the standard of service we aim to provide. We fully understand how frustrating this must be, especially given the delays in arranging your service and the ongoing issue following the visit.
Please be assured that we do care and take feedback like this seriously.
Thank you for bringing this to our attention — we regret that we’ve let you down on this occasion and want to work towards a proper resolution.
Great communication & and quick…
Great communication & and quick install, would def recommend!
23 décembre 2025
Réponse de WarmZilla
Hi,
Thank you for your great feedback!
We’re delighted to hear you were happy with the communication and the quick installation.
We really appreciate your recommendation!
Recently
Recently, I got a new boiler installed. Everything was perfect and smooth. Really great experience with Warmzilla, I would highly recommend it!
30 décembre 2025
Réponse de WarmZilla
Hi,
Thank you for your great feedback!
We’re delighted to hear that everything went smoothly and that you had such a positive experience with WarmZilla.
Your recommendation means a lot to us — thank you for choosing WarmZilla!
Had to chase for updates/poor install
Had to chase for updates, let me down on install two days before, poorly installed flue (used duct tape to secure)
22 décembre 2025
Réponse de WarmZilla
Hi
We’re very sorry to hear about your experience and apologise for the delays and issues with your installation.
Please rest assured that we take concerns like yours seriously, and we would like the opportunity to investigate the installation and ensure any issues, including the flue, are corrected properly.
Thank you for bringing this to our attention — we regret the inconvenience caused and want to make things right.
after our back boiler went bang we had…
after our back boiler went bang we had no hot water or heat warmzilla came to our rescue they were amazing professional and nothing went wrong during the whole time and had new system up and running within 2 days everything is working great and the house has never been warmer, thank you all for saving our christmas.
19 décembre 2025
Réponse de WarmZilla
Hi,
Thank you so much for sharing your experience!
We’re really glad we could step in and help when you needed it most, especially at such a stressful time. It’s fantastic to hear that everything went smoothly and that your new system was up and running so quickly. Knowing we helped save your Christmas truly means a lot to us.
Thank you for trusting WarmZilla — we’re so pleased your home is warm and comfortable again!
The guys turned up at the time they…
The guys turned up at the time they said, got straight to work and never stopped until it was finished. So polite, so friendly and left the place spotless. Love the new boiler so quiet, now we have converted to combi we got fantastic pressure for the showers , so powerful now.
Very pleased 👍👍👋👋
20 décembre 2025
Réponse de WarmZilla
Hi,
Thank you so much for your lovely feedback!
We’re delighted to hear the team arrived on time, worked efficiently, and left everything spotless. It’s great to know you’re enjoying the benefits of your new combi boiler — especially the powerful shower pressure and quiet operation!
We really appreciate your kind words and are so pleased you’re happy with the result.
Excellent costumer service
Excellent communication and costumer service. Whatever problems occur were solved fast and efficiently. I couldn't be happier.
11 décembre 2025
Réponse de WarmZilla
Hi,
Thank you for your fantastic feedback!
We’re delighted to hear that our communication and customer service met your expectations, and that any issues were resolved quickly and efficiently.
We really appreciate your kind words and are glad you couldn’t be happier!
Warmzilla is by far the best company to…
Warmzilla is by far the best company to buy a boiler off,from when when I made my order on finance I have had no problems and kept up to date with everything from Caryl from warmzilla,I have already noticed my radiators getting hotter,I always had them on maximum 5 but since my new warmzilla boiler was installed I have had to turn them down to 3 and the hot water is hotter and faster,once again I am absolutely delighted with warmzilla and would recommend them 💯% and with having a disabled child in the house it makes so much difference so thank you warmzilla I will be letting anyone I know who is getting a new boiler that there is only one firm to go with and that is warmzilla,so thank you once again caryl at warmzilla and warmzilla itself.MR A BRENNAN
17 décembre 2025
Réponse de WarmZilla
Hi,
Thank you so much for your wonderful review.
We’re absolutely delighted to hear how happy you are with your new boiler and that you’ve already noticed such a big improvement in heating and hot water performance. It’s especially rewarding to know it’s making a real difference for your family.
We’ll be sure to pass your kind words on to Caryl — she’ll be thrilled to hear them. Your recommendation truly means a lot to us, and we really appreciate you taking the time to share your experience.
Thank you again for choosing us and for your trust in us.
Excellent from order to installation
Excellent communication, had an issue with flue length (due to my mistake on the order form) but they carried out the additional work free of charge. They also offered a free limescale reducer as there was a problem with the website when I tried to add it to my order. Installation was great, complete in half a day and so far so good!
15 décembre 2025
Réponse de WarmZilla
Hi Mr Cleveland,
Thank you so much for your great feedback!
We’re delighted to hear that communication was clear throughout and that we were able to resolve the flue length issue quickly and at no extra cost. It’s also great to know the installation was completed efficiently and that you’re happy with how everything went.
We really appreciate you choosing WarmZilla and taking the time to share your experience — thank you!
This is possibly the worse insurance…
This is possibly the worse insurance company I have come across. Reported my boiler and engineer comes check the boiler and tells me what's wrong with it, he goes away and not hear anything back. I am having to chase every few days with their office, there is no contact numbers and everything is via web form and have to wait 48 hours to hear back.
All I hear back is sorry about the delay and we are working to get an engineer to you, time after time. It is almost a month and still no help with the repair, I hate to think what would have happened if this was an emergency. As it stands my boiler is getting worse and still can do anything about it.
It's ironic that they very happily respond to positive feedbacks on here and completely ignore complaints to negative feedbacks.
This must be the biggest mistake in my whole life.
17 décembre 2025
Avis spontané
Réponse de WarmZilla
Hi,
We’re very sorry to hear about your experience and sincerely apologise for the delays and frustration caused.
Please be assured that your feedback is taken seriously. We want to resolve this as quickly as possible. I can see that a date has been arranged for the visit.
Excellent Service
Thank you so much for your prompt and courteous service. You kept us updated throughout the procedure the whole time. Special thanks to Josh who's customer service was second to none and also Gary the gas engineer who was very quick and efficient. What more can I say.
17 décembre 2025
Réponse de WarmZilla
Hi,
Thank you so much for your kind words!
We’re delighted to hear you were kept well informed throughout the process and that our service met your expectations. A special thank you for highlighting Josh’s outstanding customer service and Gary’s efficient workmanship — we’ll be sure to pass your feedback on to both of them.
If you need any assistance, please do let us know.
Réponse de WarmZilla
Hi Marie,
Thank you for your feedback!
We’re glad to hear you had a positive experience with our qualified engineer and convenient payment plan.
We really appreciate you choosing WarmZilla!
Boiler installation
Turned up on time, worked until finished. All on the same day. Polite fitters.
12 décembre 2025
Réponse de WarmZilla
Hi,
Thank you for your feedback!
We’re delighted to hear our team arrived on time, completed the work efficiently in a single day, and provided a polite and professional service.
We really appreciate you sharing your experience!
Would happily give ten stars
Genuinely world class service from Warmzilla. I'll keep this short and sweet, my wife and I have been through the mill this year. New house renovation halted a year ago due to undiagnosed, faulty electrics mean a full rip out and start again, trades letting us down left, right and centre, building control not approving very simple work, etc, the list is endless. Plus we're expecting in Feb 26, as I type it's December 25 and we've been without a kitchen since August.
Finally able to get kitchen fitted after building control incompetence, we're halfway through and the old boiler packs up.
Marvelous.
Warmzilla booked to fit new boiler in loft on the Thursday but at 8.30am on said Thursday we're told the engineer's van has broke down and the install can't go ahead. The entire year's worth of stress exploded inside of me at that minute.
A Warmzilla customer agent named Josh, promises me he'll do all he can to find another engineer. By 9.30am, after another couple of emotionally driven phone calls from me, he keeps his promise and says an engineer will be with us at noon. I never caught the engineers name but he worked tirelessly, stayed the first night until 9pm and by 5.30pm the following day our new boiler had been fully fitted.
I can't thank both the engineer and, in particular, Josh enough for the effort they both put in to get this boiler fitted. Josh even messaged a few times just to check in to see if we were ok and how the install was going. Looking back, I wouldn't have blamed Josh for showing a lack of care towards me for my, not rude but emotionally driven phone calls.
I'd recommend Warmzilla in a heartbeat and would gladly use them again. This is a genuine company who strives for customer satisfaction. Their price beat what I assume is their two main competitors, their website is very user friendly and their agents are on hand immediately once you press the purchase button.
12 décembre 2025
Réponse de WarmZilla
Hi,
Thank you so much for taking the time to share such a detailed and heartfelt review.
We’re genuinely sorry to hear about the challenges you and your wife have faced this year it sounds incredibly stressful, and we truly appreciate you trusting us during such a difficult time.
While the initial disruption was far from ideal, we’re really pleased that Josh was able to act quickly and keep his promise, and that our engineer went above and beyond to get everything completed for you. Your kind words about their dedication, care, and persistence mean a great deal to us, and we’ll be sure to pass your feedback on to both of them.
Delivering reliable service and supporting our customers when they need it most is exactly what we strive for, so your recommendation and recognition mean more than we can say.
We wish you all the very best with the remainder of your renovation and the exciting months ahead, and we’re always here if you need us in the future. Thank you again for choosing WarmZilla.
I great experience from start to finish!
I great experience from start to finish! Exceptional customer service, very competitive price, and the boiler engineer did a perfect job.
4 décembre 2025
Avis spontané
Réponse de WarmZilla
Hi,
Thank you so much for your fantastic feedback!
We’re delighted to hear you had a great experience from start to finish, with exceptional customer service, competitive pricing, and a perfectly completed installation.
We really appreciate your kind words and support!
A great experience
Everything went smoothly from start to finish and we saved over a grand compared to a quote we had from a local company.
Also the quote we had was for a lesser known boiler manufacturer rather than the Worcester Bosch we had installed by Warmzilla so overall very pleased with the whole process.
11 décembre 2025
Réponse de WarmZilla
Hi Scott,
Thank you for your great feedback!
We’re delighted to hear everything went smoothly from start to finish and that we were able to save you money while installing a Worcester Bosch boiler. It’s fantastic to know you’re pleased with both the product and the overall process.
We really appreciate you choosing WarmZilla and taking the time to share your experience!
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