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... Vis mer
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Se hva andre synes
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... Vis mer
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... Vis mer
fantastic service from start to finish. this is my second time using Warmzilla. I got a boiler from there 3 years ago and had such a good experience that i decided to get air con from them too. qualit... Vis mer
Informasjon om virksomheten
- Leverandør av varmtvannsbeholdere
- også i
- Gassingeniør
- Gassinstallasjon
- Gassmontør
- Ladestasjon for elektriske biler
- VVS-firma
Om WarmZilla
Skrevet av virksomheten
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.
Kontaktopplysninger
Capital Tower, Greyfriars Road, CF10 3AG, Cardiff, Storbritannia
- 02921 684 152
- ask@warmzilla.co.uk
- warmzilla.co.uk
4,3
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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. mars 2026
Anmeldelse skrevet uten oppfordring
Svar fra 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. mars 2026
Svar fra 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.
Svar fra 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. mars 2026
Svar fra 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. mars 2026
Svar fra 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. januar 2026
Svar fra 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. mars 2026
Anmeldelse skrevet uten oppfordring
Svar fra 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. mars 2026
Svar fra 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. mars 2026
Anmeldelse skrevet uten oppfordring
Svar fra 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.
Svar fra 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. mars 2026
Svar fra 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.
Svar fra 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.
Great service
Great service, especially Caryl. Thank you!
11. mars 2026
Anmeldelse skrevet uten oppfordring
Svar fra 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. mars 2026
Svar fra 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. mars 2026
Svar fra 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.
Extremely Poor Radiator Installation and Stressful Aftercare Experience with WarmZilla
I am extremely disappointed with the radiator installation carried out by WarmZilla in my living room. The quality of the work was far below what any homeowner would reasonably expect from a professional heating company.
The installation was left in a very poor and unfinished condition. The pipework was exposed and poorly aligned, the wall around the radiator was left damaged, and the overall finish looked careless and unprofessional. Instead of a clean installation that blends into the room, it looked as though the work had been abandoned halfway through, making the radiator area look messy and poorly executed. Seeing this every day in the main living space of my home was extremely upsetting.
What made the experience even worse was the long and stressful process of trying to get WarmZilla to resolve the issue. I spent over one and a half months raising complaints and communicating with them repeatedly. Despite the significant amount of time, emails, and effort involved, the problem was never properly resolved. Throughout this period, I felt there was no genuine intention to correct the poor workmanship.
In the end, I had no option but to hire an independent professional heating engineer to correct the installation. The engineer had to reinstall the radiator to a proper professional standard and repair the damage left behind. He also managed to hide the pipework and leave the installation looking neat and properly finished.
This resulted in significant additional costs that I should never have had to pay, as well as a prolonged period of stress dealing with the situation.
This experience caused unnecessary financial loss and a great deal of stress, negatively affecting my daily life. Based on my experience, I strongly recommend that others think very carefully before using this company. The installation left in my home and the lack of resolution afterwards were extremely disappointing.
23. januar 2026
Anmeldelse skrevet uten oppfordring
Svar fra WarmZilla
Hi Hadeel
We're really sorry about this situation. I can see that the team has sent you proof that we were trying to contact you to do whatever was necessary regarding the work but those emails were missed by yourself.
We regret that we weren't able to come to an agreement but thank you and wish you all the best :)
Great Service
26. februar 2026
Svar fra WarmZilla
Hi Kevin,
Thank you for your review!
We’re really pleased to hear you received great service and appreciate you taking the time to share your feedback.
Svar fra WarmZilla
Hi,
Thank you for your review.
We’re really pleased to hear you found our service trustworthy and effective.
We truly appreciate your feedback and your support.
New boiler
Great value , very professional fitters , next day delivery on the hole great company and would recommend
26. februar 2026
Svar fra WarmZilla
Hi Christopher,
Thank you so much for your fantastic review!
We’re delighted to hear you were pleased with the value, our professional fitters, and the next-day delivery. It’s great to know everything came together smoothly for you.
Your recommendation means a lot to all of us— thank you for choosing us!
Absolutely 5 star professional service
Absolutely 5 star professional service. Arrived as planned - Rob was lovely, quick and efficiently fit with no mess. Couldn’t ask for better. Cost may be little more but it was worth every penny. Excellent throughout.
17. februar 2026
Svar fra WarmZilla
Hi,
Thank you so much for your wonderful 5-star review!
We’re delighted to hear you were happy with the service and that everything went smoothly on the day. Rob will be especially pleased to hear your kind words about his efficiency and professionalism.
We always aim to deliver a high standard of workmanship with as little disruption as possible, so it’s great to know you felt it was worth every penny.
Thanks again for taking the time to share your experience — it truly means a lot!
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