WarmZilla Omdömen 

2 134
•
TrustScore 4.5 av 5

4,3

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Det här tycker kunderna

Betygsatt 5 av 5 stjärnor

From ordering to delivery and fitting my new boiler, everything went exactly as planned. This is my second time using Warmzilla's services this year — first for my new home and most recently for my re... Se mer

Betygsatt 3 av 5 stjärnor

The engineer left the old boiler and all the packaging, loads of mess (brick dust, cable cut offs on the floors and benches), had my teen bleed the radiators and didn't replace the cupboard that the b... Se mer

Betygsatt 5 av 5 stjärnor

Your booking staff (Amy) were very helpful and patient. Your engineers (Rayen and Steve) were professional and thorough throughout. Well done all

Betygsatt 4 av 5 stjärnor

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... Se mer

Företagsinformation

  1. Leverantör av vattenkokare
  2. också i
  3. Gasingenjör
  4. Gasinstallation
  5. Gasinstallatör
  6. Laddningsstation för elfordon
  7. Uppvärmningstjänster

Om WarmZilla

Skrivet av företaget

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.

Kontaktuppgifter

4,3

Utmärkt

TrustScore 4.5 av 5

2 tn omdömen

5 stjärnor
4 stjärnor
3 stjärnor
2 stjärnor
1 stjärna

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4,3

Alla omdömen

(2 134)

301 omdömen under de senaste 12 månaderna

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Betygsatt 5 av 5 stjärnor

Fantastic air con insatallation experience

We first used Warmzilla for a boiler installation, and thanks to the excellent service, they were the only one's we thouht of for an air con installation.

We wanted AC installed in our bedrooms, as it gets particularly hot upstairs in the summer, especially the summer we just had.

When we contacted them, they answered all our queries and filled us with confidence in their abilities with AC.

We had plenty of questions about where the units would go inside the house, how the pipework would be run, where the outside unit would need to be located, and whether the sytem would be noisy when used at night.

The team took the time to talk through what options would work best for the layout of our home.
They were reassuring, and we never felt pressured into making a decision.

On istallation day, the engineers arived on time, and checked the proposed positions for the installation with us before commencing work.

They kept us informed as the work progressed, made sure that we were happy with the work, and the finished appearance of the units.

They gave us a demostration of how the units worked, and answered our questions, making sure that we knew exactly how to operate them before they left.
They were very professional, and treated our home respectfully.

The difference the AC units have made upstairs has been fantastic. We can set the units to cool the bedrooms before we go to bed, and can even keep them on throught the night if needed as they are so quiet.

We even tested the heating function this morning as it was chilly, I am pleased to say that this feature also works great, and quickly.

I am writing this review, as Warmzilla has given us a fantastic service over this, and our past insatllation.

From our initial enquiry, to the completed installation, we have felt well looked after.

I highly recommend Warmzilla to anyone that is considering AC for thier home.

24 september 2026
Omdöme utan inbjudan
Betygsatt 1 av 5 stjärnor

Absolute shambles.

Absolute shambles.

It’s a shame to leave such a negative review because the people we dealt with were generally lovely when we could actually get hold of them, and the air conditioning itself is great. Unfortunately, WarmZilla’s processes and communication were astoundingly poor.

We ordered in June for installation around four weeks later. WarmZilla then called offering to bring the installation forward to within a week, which we happily accepted, only to call again and say the units were actually out of stock and move us back by a month.

As the new date approached, we were told the units were still unavailable and our installation was cancelled altogether. Then, silence.

After chasing, we were eventually told there was a nationwide shortage. I completely understand that shortages happen, particularly following unusually hot weather. What I don’t understand is why WarmZilla continued selling the same installations to new customers, with its website quoting dates around two weeks away, while existing customers who had already ordered couldn’t even get an installation date.

Had we known this at the outset, I would simply have gone elsewhere. By the time it became apparent how long we would be waiting, lead times with other companies had increased significantly, leaving us little choice but to stick with WarmZilla.

Eventually, we were told our unit was available and installation could finally go ahead.

The day before installation, the equipment unexpectedly arrived at our house despite us previously being told it would arrive on installation day. Luckily I happened to be home. The delivery driver arrived stressed because WarmZilla had apparently given him the address of a community centre miles away, where he had been sitting for half an hour before eventually being given our correct address.

Installation day then arrived. Our engineer was due between 8am and 11am, so we arranged our morning around being ready from 8am. By 11:05 nobody had arrived, so we started chasing WarmZilla and the engineer ourselves.

The engineer had no idea about our booking.

WarmZilla subsequently explained that the engineer apparently hadn’t realised they now had units available. Somehow, we knew our equipment was in stock and had literally had it delivered to our house, but the person booked to install it didn’t.

We then discovered that all the photographs and information we had already supplied to WarmZilla hadn’t been passed to the engineer either, so we had to gather everything again and send it directly to him ourselves.

The installation was rearranged for two days later. Thankfully, the engineer turned up, did a great job and the air conditioning itself is wonderful.

What really topped the experience off was what happened next.

After months of struggling to get updates from WarmZilla, the day after installation I suddenly received numerous emails followed by a WhatsApp message chasing me to confirm that the work was complete so they could get paid. Within hours, I was being reminded that they had contacted me multiple times and asked to confirm completion “as soon as possible”.

The sudden urgency when they were waiting for me so that they could be paid was quite remarkable.

Throughout the process, contacting WarmZilla had been incredibly difficult. Their phone line would direct us to online chat and then hang up, while online chat often seemed to have nobody available. At one point, the only way I could reliably get a callback was to submit an enquiry as though I were interested in buying a new system.

That probably sums up the experience.

A nationwide stock shortage is understandable and outside WarmZilla’s control. Offering installation dates without confirmed stock, failing to keep existing customers updated, sending a delivery driver to the wrong address, failing to tell an engineer about his installation, not passing him the information we had already provided, and then suddenly becoming extremely communicative when payment was due are not.

We could have tolerated the wait. It was the chaos surrounding it that made the whole experience so stressful.

I genuinely wish I had gone elsewhere. The finished product is great and the individuals we dealt with were pleasant, but based on our experience I would not use WarmZilla again. If you're reading this as a potential future customer, look at Boxt instead. We had a fantastic experience with them for our new boiler.

24 september 2026
Betygsatt 3 av 5 stjärnor

The fitter was ok but the trunking…

The fitter was ok but the trunking inside was poorly fitted. With an explanation that residential AC is a new thing and in commercial they don’t us trunking.
There was also a problem with electric connection. At one
Point he was going to connect it to a
13 amp plug!!!

9 september 2026
Betygsatt 5 av 5 stjärnor

Boiler installation carried out

Boiler installation carried out. Kyle the engineer called ahead of time to inform me the time he was arriving. Him and the other engineer were very friendly and efficient. Few hours and the house was nice and warm. They left the house spotless.

1 september 2026
Omdöme utan inbjudan
Betygsatt 1 av 5 stjärnor

DISHONEST COMPANY

After more than 20 calls, over 50 email messages with thousands of photos and hundreds of What's up messages a delivery date was agreed and hours before the scheduled installation Warmzilla CANCELLED! A combination of utter incompetence and complete irresponsibility delivers disservice to the consumer. They will promise delivery without hesitation, require 100% upfront payment and at the end leave a family without hot water for a week, having signed a contract. This type of company has no place in our society. It is up to us consumers to drive dishonest and irresponsible businesses like that out of business. DO NOT USE!

17 september 2026
Omdöme utan inbjudan
Betygsatt 1 av 5 stjärnor

They would give Cowboys a bad name!

Right where do I start, I paid to have my boiler replaced with these guys, all helpful etc at the start then the day of the installation, engineer turns up and starts work, old boiler off, I here a angle grinder going but thought nothing of it, the doors to the kitchen were closed so I waited for the cutting to stop and went in, the engineer had cut my granite splash back with out my knowledge, I was flumming at him asked the hell had he done that, the new boiler was longer than the old one he said so he cut my splash back to make it fit, I said why didn't to board it out so it missed the splash back, and there is water pissing out of my ceiling, he's melted a plumbing fitting, no response from the idiot, but I then had to go to a hospital appointment so I had to leave him working, by the time I got back he was gone, my splash back is ruined, I found a hole in my ceiling and a massive water stain, I couldn't believe it, I had a leaking radiator, the boiler it's self is out of level on the wall, the pipe work underneath is not level, the electric cables were poorly done, he told my partner we can't use the heating only hot water as he couldn't get it to work, I go outside and he's left all his rubbish laying about, I look up and the flue is leaning to one side, he's also snapped off a toilet overflow and I'm guessing he used a hammer as he took a chunk out of the face of my brickwork, I was so pissed off, I contacted warmzilla, they were not much help, so I didn't feel safe using the boiler and thank god I didn't, I got gas safe put, they came about a week later, he checked everything that's to do with safety but not workmanship, he found a few issues they needed to put right, one thing was they never connected the condense pipe back up to the waist pipe under the sink so if I ran the boiler it would of leaked, warmzilla said everything would be sorted out, another engineer came out and put the gas safe issues right, I then wait for the company to say what they are going to do about fixing my damaged granite splash back, the hole in my ceiling, the massive water stain, straighten up boiler, pipes etc, fix the brickwork, I got a email a few days later offering me £50 for having to get rid of all the rubbish and £150 as a good will gesture, that doest even come close to the cost to repair the damage and put things right, I say no to there offer, I hear nothing, they then send me a email asking if I want to join thier warranty club a monthly fee, I reply and ask are you taking the P but a bit stronger words than that, I get a response that bad words will not be tolerated, we'll I'm now going to war with this cowboy company, I paid with a credit card so they are on the case, been told to speak to CA who should put me in contact with trading standards, then after that I'm taking them to the small claims court, I was a tradesperson, I was a stone mason, I then went on my own and fitted kitchens, bathrooms, small extensions, landscape gardening, I do have a eye for detail and would never do work to the low standard of WarmZilla,I just couldn't do it, Warmzilla you should be ashamed of your workmanship!.

20 augusti 2026
Omdöme utan inbjudan
Betygsatt 1 av 5 stjärnor

Shocking service

Shocking service, took months to book in my boiler getting serviced even though I pay a monthly sub subscript.

The person came round, did it within five minutes then came back because they forgot something. It can be more rushed if they tried.

And apart from bang and crashing around my house, you left everything switched off so the Water when I get through to the radiators

Extremely suboptimal would not recommend from now on. I’ll get my own person to come and service the boiler.

18 september 2026
Betygsatt 2 av 5 stjärnor

My experience has been incredibly poor…

My experience has been incredibly poor unfortunately with Warmzilla. They book the service, then I wait the whole day and nobody turns up. They don’t even care to inform me. Then I have to chase to them for 3 weeks to get this sorted and still nothing. I personally don’t think they care as they have enough customers now. Personally I will say, avoid them.

Update: Following my review, Amy helped arrange the cancellation and refund, which I have now received. I appreciate her personal efforts. Without her help, I could have spent months chasing the refund. My original review still reflects my experience. I came to WarmZilla for a service, so the overall experience remains disappointing despite the refund.

29 augusti 2026
Omdöme utan inbjudan
Betygsatt 2 av 5 stjärnor

Very poor service

This was the quickest service I've ever had. The central heating system wasn't even run at all which has always happened in the past.
On top of that I was told I'd be emailed a copy of the service for my own records which I still haven't received. I contacted Warmzilla to chase this up but that request seems to have been ignored as well.

10 september 2026
Betygsatt 5 av 5 stjärnor

Great service

Really happy with our new boiler installation ! 😊 Both engineers were friendly and professional. Everything went smoothly and we’re very pleased with the service. Thank you!

16 september 2026
Omdöme utan inbjudan
Betygsatt 5 av 5 stjärnor

Boiler service …

Contacted the customer service team for a service date, and due to there engineer being available, everything was arranged for the next day. Excellent service from everyone involved from customer service and the Engineer (Aziz) was polite and friendly 😊

3 september 2026

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