WarmZilla Opiniones 1992

TrustScore: 4.5 sobre 5

4,5

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Consulta las opiniones de los clientes

Valorada con 1 estrellas sobre 5

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... Ver más

Valorada con 5 estrellas sobre 5

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... Ver más

La empresa ha respondido

Valorada con 5 estrellas sobre 5

Paid the amount we were quoted. The engineer was very nice and managed everything in a day. We were very impressed and incredibly grateful after a very cold start to moving into our forever home.

La empresa ha respondido

Valorada con 5 estrellas sobre 5

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... Ver más

La empresa ha respondido

Información sobre la empresa

  1. Proveedor de calderas
  2. Estación de carga de vehículos eléctricos
  3. Ingeniero de gas
  4. Servicio de instalación de gas
  5. Gasista
  6. Servicio técnico de calefacción y calderas

Acerca de WarmZilla

Escrito por la empresa

Promotional GIF
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.

Información de contacto

4,5

Excelente

TrustScore: 4.5 sobre 5

2 mil opiniones

5 estrellas
4 estrellas
3 estrellas
2 estrellas
1 estrella

Ha contestado el 86% de las opiniones negativas

Suele responder en menos de 1 semana

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Valorada con 5 estrellas sobre 5

New Boiler Installation (#120527)

Engineer, Kevin McGlynn, turned up exactly when scheduled and was extremely helpful and friendly. Old boiler removed and new one fitted in a very short period of time, and with an extremely high standard of workmanship. New system and controls fully explained, and all waste removed and tidied up.
Would highly recommended WarmZilla, and Kevin, for their efficiency and standards of workmanship.

3 de diciembre de 2025
Opinión espontánea
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Respuesta de WarmZilla

Hi,

Thank you so much for your kind feedback!

We’re delighted to hear that Kevin provided such a helpful, friendly, and efficient service, and that the installation met such high standards. It’s great to know the new system and controls were clearly explained, and that everything was left tidy.

We really appreciate your recommendation and your support—it means a lot to both Kevin and the team!

Valorada con 5 estrellas sobre 5

Excellent

I've requested a Warmzilla quote after local plumbers were giving me quotes for a new boiler at way higher prices. Paul was sent out to my property in Aberdeen, and he was really professional and friendly. He was done with the whole thing in a day.

I can't speak of the aftercare, but so far my experience with this company has been excellent.

3 de diciembre de 2025
Opinión espontánea
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Respuesta de WarmZilla

Hi Daniel,

Thank you for taking the time to share your experience!

We’re delighted to hear that Paul provided a professional and friendly service, and that the installation was completed efficiently in just one day. It’s great to know we were able to offer a competitive alternative to the quotes you’d received locally.

We really appreciate your positive feedback so far, and we’re always here if you need anything going forward.

Valorada con 5 estrellas sobre 5

🔥 Shoutout to WarmZilla

🔥 Shoutout to WarmZilla! 🔥
I recently purchased a boiler from WarmZilla, and I couldn’t be happier with their service. From start to finish, everything was smooth and professional. They offered a Blue Light Card and Emergency Worker discount, which was a great bonus. The team arrived exactly on time, completed the installation within the promised timeframe and provided excellent advice throughout the process.
Their 0% finance option made the purchase even more convenient, and the entire experience felt hassle-free. WarmZilla truly delivers on their promises brilliant service, reliable, and customer focused. I highly recommend them to anyone looking for a new boiler! WarmZilla is the way to go! 💯

25 de noviembre de 2025
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Respuesta de WarmZilla

Hi Buddi,

Thank you so much for your fantastic review!

We’re thrilled to hear that your experience was smooth and professional from start to finish, and that the Blue Light Card and Emergency Worker discount helped add extra value. It’s great to know the installation team arrived on time, completed everything as promised, and provided helpful advice throughout.

We’re also delighted that the 0% finance option made things more convenient for you. Delivering reliable, hassle-free, customer-focused service is exactly what we aim for, so your recommendation means a lot.

Thank you again for choosing WarmZilla—and for the kind words!

Valorada con 5 estrellas sobre 5

Boiler replacement

Turned up on time and did a great job fitting it in a very quick time. Clean job, nothing left, no mess, explained everything on how to operate and great value for money. Now have hot water on demand instead of an inefficient boiler and tank.

24 de noviembre de 2025
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Respuesta de WarmZilla

Hi,

Thank you for your great feedback!

We’re really pleased to hear that the installation was completed quickly, cleanly, and to a high standard, and that everything was clearly explained before the engineer left. It’s fantastic to know you’re already enjoying the benefits of hot water on demand and improved efficiency.

We truly appreciate you choosing us and are glad you found the service great value for money!

Valorada con 5 estrellas sobre 5

We had a new boiler fitted over a year…

We had a new boiler fitted over a year ago with warmzila and they did a brilliant job cannot fault them I took out my boiler cover with them also so thank you to all

28 de noviembre de 2025
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Respuesta de WarmZilla

Hi Paul,

Thank you so much for sharing your feedback! We’re delighted to hear that you’ve been happy with your boiler installation over the past year and that everything has continued to run smoothly. It’s great to know you’ve chosen to take out boiler cover with us as well.

We really appreciate your kind words and your continued trust in our service — thank you from all of us!

Valorada con 4 estrellas sobre 5

Work men were on time seemed nice & I…

Work men were on time seemed nice & I felt contented to trust them & leave them alone

28 de noviembre de 2025
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Respuesta de WarmZilla

Hi,

Thank you for your feedback!

We’re glad to hear that our team made you feel comfortable and confident during the installation. Punctuality and professionalism are really important to us, so it’s great to know we hit the mark.

Valorada con 1 estrellas sobre 5

Joined WZ just under 9 months..pathetic!

Joined WZ just under 9 months. I decided to contact them about my boiler service which is included in my package. Considering I contact the 2 months ago about this via WhatsApp email and online chat. There incompetence exceeds their service.
Still waiting for a reply: after being told on the last two contact occasions that they will get back to me
...WHEN???

However, someone did text me at 23.30 one evening asking if I'd be in the next day.. I responded the next day to say I would, they responded saying they had already passed by...who texts at 23.30 from a reputable gas service company.??? to ask such info from a customer.

They didn't even answered my most important question as to what company they were from. Only that they were asked by WM to do a service.

I checked with WZ and NOT even they know who this dickens this person is..what the hell!

Now waiting AGAIN for WM to reply and sort out who will be attending my boiler service.

Pathetic!

So sorry I joined WZ.

27 de noviembre de 2025
Opinión espontánea
Valorada con 5 estrellas sobre 5

Professional great service

Professional great service, contacted before arriving and arrived on time.

27 de noviembre de 2025
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Respuesta de WarmZilla

Hi,

Thank you for your feedback!

We’re delighted to hear you received a professional service, with clear communication and punctual arrival. We really appreciate you taking the time to share your experience!

Valorada con 5 estrellas sobre 5

Very impressed

Excellent, efficient and reliable

25 de noviembre de 2025
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Respuesta de WarmZilla

Hi,

Thank you for your feedback!

We’re delighted to hear you found our service excellent, efficient, and reliable.

We truly appreciate your support!

Valorada con 5 estrellas sobre 5

Fantastic from start to finish

WarmZilla’s customer service is, I would say one of the best. Whether email or phone or via whatsapp, they respond quickly and give you quality customer service. They are friendly, professional, and knowledgeable. They check in with you before and after and are not pushy when it comes to selling. They sent out a good engineer who knew what he was doing, and with good experience. Im really glad I went with them, and I wouldn’t hesitate to use them again (hopefully I wont have to with a new boiler now haha).

18 de noviembre de 2025
Opinión espontánea
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Respuesta de WarmZilla

Hi Anil,

Thank you so much for your wonderful review!

We're delighted to hear that our customer service team made such a positive impression and that you felt supported throughout the entire process. It’s great to know our engineer provided the knowledgeable and professional service we aim for as well.

We’re really glad you chose us, and your kind words truly mean a lot. Hopefully your new boiler keeps you going for many trouble-free years—but if you ever do need us again, we’re always here to help!

Valorada con 1 estrellas sobre 5

Cancelled last min, wasted my time

Purchased a boiler and went through finance. Waited nearly two weeks then one working day before installation I was told they don't cover my country.

They could've easily told me this at the start

21 de noviembre de 2025
Opinión espontánea
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Respuesta de WarmZilla

Hi,

We’re very sorry for the frustration and inconvenience this caused.

We’re reviewing our processes to ensure this doesn’t happen again, so future customers have a smoother experience.

Thank you for your feedback, and we truly regret the disruption to your plans.

Valorada con 5 estrellas sobre 5

Spot on time

Spot on time
Engineer Steve brilliant 👏
Can't fault nothing

20 de noviembre de 2025
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Respuesta de WarmZilla

Hi,

Thank you so much for your kind words!

We're glad to hear everything was on time and that Steve provided brilliant service. We’ll be sure to pass your feedback along to him.

We appreciate you choosing us and hope to help again in the future!

Valorada con 5 estrellas sobre 5

Trouble free boiler installation.

Arrangement of new boiler was prompt with good communication from WarmZilla throughout. Boiler engineer chosen was to a high standard with everything sorted out and explained in good time.
Follow up call after the installation was good with any question properly answered.
A pleasure to work with from start to finish.

14 de noviembre de 2025
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Respuesta de WarmZilla

Hi Phil,

Thank you so much for taking the time to share your experience!

We're delighted to hear that the boiler installation was handled smoothly and that our communication kept things clear throughout the process. It's great to know the engineer met your expectations and that the follow-up support was helpful as well.

We truly appreciate your feedback and are glad it was a pleasure from start to finish. If you ever need anything in the future, we’re always here to help!

Valorada con 5 estrellas sobre 5

Consistency reliable and competent

Consistency reliable and competent

19 de noviembre de 2025
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Respuesta de WarmZilla

Hi,

Thank you for your kind words!

We’re thrilled to hear you found our service consistent, reliable, and competent.

We appreciate your feedback and look forward to assisting you again in the future.

Valorada con 5 estrellas sobre 5

The service was really good

The service was really good. The man that installed ( lee ) was very informative, clean and tidy and very knowledgeable

19 de noviembre de 2025
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Respuesta de WarmZilla

Hi Sean,

Thank you for your kind words!

We’re thrilled to hear that Lee provided such a professional, knowledgeable, and tidy service. We’ll make sure to pass your feedback on to him.

We really appreciate you taking the time to share your experience!

Valorada con 3 estrellas sobre 5

Opentherm Veissmann 100W

**UPDATE: We have managed to have a visit by an engineer (arranged within days) to connect up Opentherm and it is all working well. Considering this and the previous issue where the sub-contractor didn't do the job to my expectations, and the fact that the sub-contractor misled myself and the Warmzilla customer service - I will keep the rating at 3 stars. I do have faith that Warmzilla will improve on their Opentherm installations and hopefully sub-contractors tarnishing their reputation will not be used again. The only thing that I am waiting for is the boiler warranty documents - I hope to receive them soon. **

**EDIT: Rhys is looking to get this rectified and the errors are being rectified. Rhys's response is really encouraging and they seem really keen to fix the issues. I have revised the star rating since. The issues of the customer service knowledge has been refreshed, so this shouldn't happen again. **

I ordered a Veissmann 100W Combi to take advantage of the 12 year warranty along with the great reviews. I have my own smart controls that are Opentherm compatible (previous boiler wired up for opentherm), so I selected reconnect the thermostat in the ordering process.
Warmzilla were initially very helpful and proactive. Although the installation date had to be moved, it wasn't too big of an issue for me.

On installation day, a third party contractor showed up and I explained at the time that I want to retain Opentherm connections to the boiler.

At the end of the install, the engineer was packing up and didn't mention the connections until I asked if Opentherm was operating. He responded that he couldn't do it, and to my surprise didn't even know what open therm does. He made up some story about a special connection, but it turns out they just needed a £1 cable to connect it all up to the two terminals on the thermostat and the boiler. The engineer left, with the boiler in on/off configuration.

I noticed that the engineer had thrown a load of rubbish to obscure areas of the attic space and failed to reconnect the loft ladder. There was also a scattering of suitcase thrown across the place - the least of my issues.

I reported the issue to Warmzilla, but the response has been so slow. It had taken a week to contact the installer to only receive some made up story that the thermostat is not opentherm compatible from the installer- despite being connected to it before. I've also received false information from Warmzilla about veissmann claiming that the maximum efficiency of the boiler can be achieved in on/off configuration - Just google 'Veissmann Opentherm' and they have a web page devoted to the benefits in increased efficiency.

I am now getting frustrated that the company is not offering a solution to the issue. It's an easy fix, probably 20 minutes work with a £1 cable.

So far, I have rejected to release the interest free finance to Warmzilla and will continue to do so until this is resolved and the 12 year boiler warranty is registered.

They need to improve their customer service response time and test their installers. iheat, heatable etc has plenty of information about opentherm and the benefits, I am regretting my decision to go with warmzilla. The one star is down to both the installer and warmzilla trying to mislead me on the benefits of opentherm and poor communications after installation.

10 de noviembre de 2025
Opinión espontánea
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Respuesta de WarmZilla

Hi Andrew,

Thank you for taking the time to provide detailed feedback. We sincerely apologise for the issues you experienced during and after your boiler installation. We completely understand your frustration regarding the Opentherm connection and the delays in our response.

We’re pleased to hear that Rhys has been able to engage with you and that the errors are being addressed. Please rest assured that we are committed to rectifying the remaining issues promptly and ensuring your boiler is set up correctly for Opentherm operation.

We greatly value your feedback and your patience as we work to resolve this. Our goal is to ensure your experience ends on a positive note and that you can enjoy the full benefits of your Veissmann 100W Combi and warranty.

Valorada con 2 estrellas sobre 5

Caused more issues than help

Caused more issues than help - the only reason they get 2 stars is because of their customer service response times (shout out to Josh for his persistence)

- Their contractor arrived much later than estimated on the day, with no updates
- Their contractor caused our wiring to smoke and continued to do so despite tripping the electrics several times, we were later told by a serviceman sent by the boiler manufacturer that we were lucky a house fire did not occur
- Their contractor failed to come prepared with basic materials, using our own cement instead
- This first installation left us without heating and a broken boiler despite being brand new. It was left non-functional for eight days as a result of their contractor frying the circuit board of a brand new boiler
- Two repair appointments were arranged by Warmzilla in between the first failed installation and the fix, one where no one turned up so we were left waiting, and another that was cancelled less than 24 hours before.
- Warmzilla claimed we had to take it up with the manufacturer directly as it was under warranty. When the manufacturer sent someone to look, they showed us the fried circuit board (thanks to Warmzilla's contractor) which meant the boiler was not faulty.
- It has taken almost 7 weeks to receive the gas safety certificate and warranty, supposedly a timeline outside of their control

Warmzilla eventually repaired the boiler and after some negotiation received compensation in the form of 11% of the price we paid, but it was so much hassle, back and forth, re-arranging plans/working arrangements after Warmzilla did not stick to their appointment dates.

The only reason there are stars in this review is because the customer service was quick albeit painful and stand-offish at times.

2 de octubre de 2025
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Respuesta de WarmZilla

Hi,

Thank you for sharing your feedback.

We acknowledge that some aspects of the installation did not go as smoothly as planned. However, we believe the review may not fully reflect the efforts made to resolve the situation.

We have provided compensation for the issues you experienced and hope this helps address your concerns.

Thank you again, and we wish you all the best moving forward.

Valorada con 5 estrellas sobre 5

Great service

Great service, fast, timely
Great follow up support

16 de noviembre de 2025
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Respuesta de WarmZilla

Hi,

Thank you for your kind words!

We’re thrilled to hear you found our service fast, timely, and that our follow-up support was helpful.

We really appreciate your feedback!

Valorada con 5 estrellas sobre 5

Worcester oil combi boiler

Excellent service from getting the quote to fitting .

5 de noviembre de 2025
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Respuesta de WarmZilla

Hi,

Thank you for your feedback!

We’re delighted to hear you had an excellent experience from the quote right through to the fitting.

We really appreciate your support and kind words!

Valorada con 4 estrellas sobre 5

Thank you Warmzilla!!!

I was kept informed every step of the way by the warmzilla team from the beginning to the day my boiler was fitted.
Although there was a little hiccup with the scheduled date for the boiler installation, it was worth the wait and the gentleman who came to install the boiler was very polite and professional, cleaned up afterwards and left us in a very good mood. I will definitely use them again and will strongly recommend their products and services😊.

14 de noviembre de 2025
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Respuesta de WarmZilla

Hi Juliet,

Thank you so much for your thoughtful feedback!

We’re delighted to hear that, despite the slight scheduling hiccup, your experience with our team and the installation went smoothly. It’s wonderful to know our engineer left such a positive impression and that you’re happy with your new boiler.

We really appreciate your recommendation and look forward to working with you again in the future!

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