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Rated 1 out of 5 stars

Please don't call them. Waste of time. I had booked appointment with them, came and did nothing, gave a big quote of £650. My wife asked him what kind of part needed to change, he said it seems, he wi... See more

Company replied

Rated 5 out of 5 stars

engineer Martell was very knowledgeable about the different boilers on the market, gave us good advice on which one he thought would be best for us.he was very efficient when putting the boiler in lef... See more

Rated 2 out of 5 stars

Hired them to come out and repair the boiler. Cost £360 for one hour total. The boiler worked for less than a day before the same problem reappeared. British Gas engineer came to visit the day aft... See more

Company replied

Rated 5 out of 5 stars

We are very happy with how quickly the issue was identified and resolved. When the engineer was in the area a week later he checked-in with us to see if everything was satisfactory. Happy to recommend... See more

Company replied

Company details

  1. Heating Contractor

Written by the company

Property developer based in the United Kingdom


Contact info

3.0

Average

TrustScore 3 out of 5

48 reviews

5-star
4-star
3-star
2-star
1-star

Replied to 100% of negative reviews

Typically replies within 24 hours

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Rated 1 out of 5 stars

Poor service

Please don't call them. Waste of time. I had booked appointment with them, came and did nothing, gave a big quote of £650. My wife asked him what kind of part needed to change, he said it seems, he will charge £150 only to tell the name of parts. Later we called another engineer, he fixed it within 1 hour... Simply took our £50 for call out nothing.

8 January 2026
Unprompted review
CUBESER logo

Reply from CUBESER

Thank you for your feedback. Our call-out and survey fee is £50, which covers the engineer’s time and inspection of the boiler. During the visit, the boiler was found to be in very poor condition and in need of multiple parts, which is why a quote of £650 was provided for the required repair work.

We did not proceed with any repairs as you chose not to accept the quotation. Our engineer did attend the appointment and carried out an assessment, which is what the call-out charge covers. We’re sorry you were unhappy with the outcome, but the quote reflected the condition of the boiler at the time of inspection.

Rated 4 out of 5 stars

New boiler installation

Mantell installed a new boiler.
He is competent and a hard worker.
However I didn't realise he was going to be at my house until late evening.
He returned the following week to install a new controller. My old one was incompatible.

28 January 2025
Unprompted review
Rated 5 out of 5 stars

Really happy with the service from…

Really happy with the service from Martell & Cubeser. Good prompt service. Martell explained clearly the issues and solutions.

12 February 2025
Unprompted review
CUBESER logo

Reply from CUBESER

Thank you for your amazing review! We're really glad to hear about your great experience with Martell in our heating system installation team. We really value your comments and are pleased we can help..

Rated 5 out of 5 stars

engineer Martell was very knowledgeable…

engineer Martell was very knowledgeable about the different boilers on the market, gave us good advice on which one he thought would be best for us.he was very efficient when putting the boiler in left everything clean and tidy. always answered questions we had fully.he finished the installation within the time he stipulated.would happily recommend him.

19 December 2024
Unprompted review
Rated 1 out of 5 stars

Do Not Touch Them

Terrible company, quick to take your money and impossible to get hold of once they have it. Do not touch them with a barge pole, I have read the positive reviews and do not believe any of them.

9 September 2023
Unprompted review
CUBESER logo

Reply from CUBESER

Thank you for adding you review - we have no recorders of you Mr S B Davis for any works. Are you reviewing on someone else's works?

Rated 5 out of 5 stars

Absolutely thrilled with the service and chemical


Absolutely thrilled with the service provided by CUBESER!Not only did they efficiently fix our hot water and heating issues, but they also introduced a unique chemical solution that enhanced the performance of our boiler. The team was professional, knowledgeable, and went above and beyond to ensure everything was working perfectly fine. Highly recommend their services to anyone in need of a reliable boiler maintenance!"CUBESER is first class. They are highly skilled and run efficient business.They care about their work and customers. I was recommended to CUBESER by a few neighbours a couple of years ago and I have ceased to worry about any boiler or gas problems - I just ring and despite the work load my needs are prioritised.
Thanks for the top notch service CUBESER and the chemical which saved on my energy bills.

3 March 2024
Unprompted review
CUBESER logo

Reply from CUBESER

Thank you Effie - we are really grateful your review

Rated 1 out of 5 stars

Absolutely useless

Absolutely useless. No customer manners. Very rude and uses fake office responses (Amy).
BE WARNED, The cubeser chemical is plain water. Nothing was added.
Created a massive problem in central heating radiators. Claimed to remove dirt using a Henry hoover!!!

20 December 2023
Unprompted review
CUBESER logo

Reply from CUBESER

Dear Mr Eddie Jenga

I have passed your review to Amy in our service team who will be investigating this further.

We will contact you but if you wish, you can contact our office with your works reference number on 03332 309 483 Monday - Friday 11:00 -17:00 to go over your matter so we can resolve any issues.

CUBESER

Our kindest regards

Sue

Rated 1 out of 5 stars

Customer service ZERO

Had a Nest heating control installed...Worst ever and they absolutely refuse to return until I pay them £150 to repair their shoddy awful work!
Never use them!

4 July 2023
Unprompted review
CUBESER logo

Reply from CUBESER

I have passed your review to Amy in our service team who will be investigating this further.

We will contact you but if you wish, you can contact our office with your works reference number on 03332 309 483 Monday - Friday 11:00 -17:00 or email into our office at info@cubeser.com to go over your matter so we can resolve any issues.

CUBESER

Our kindest regards

Sue

Rated 5 out of 5 stars

Happy with service

I called cubeser for a boiler and they came out straight away and done a really good job, plus they checked our radiators for free. And was nice to our cat

10 February 2022
Unprompted review
Rated 1 out of 5 stars

NEVER contact them

No comments! Never contact them

2 September 2022
Unprompted review
CUBESER logo

Reply from CUBESER

Thank you for your review, unfortunately we are unable to provide any further advice as we don’t understand why you have given us a 1 star review

Amy

Rated 2 out of 5 stars

Hired them to come out and repair the…

Hired them to come out and repair the boiler. Cost £360 for one hour total. The boiler worked for less than a day before the same problem reappeared. British Gas engineer came to visit the day after and after seeing the Cubeser work report was not impressed, to say the least.

Only reason I haven't given one star is that they offered me a £180 refund.

Edit after reading Cubeser's reply to say that the British Gas engineer said there were multiple problems AFTER the Cubeser visit and he said he had no idea what the previous engineer even did. Ridiculous given that I've now found out that Cubeser services are double what normally is charged for emergency repairs.

20 August 2022
Unprompted review
CUBESER logo

Reply from CUBESER

Dear James Wei

Thank you for your review, we appreciate you as a customer and your review, as you mentioned we managed to get your boiler working, so for a British Gas engineer to not be impressed seems strange.

Unfortunately we was unable to complete the repair at your request

CUBESER

Our kindest regards

Sue

Rated 5 out of 5 stars

Boiler was leaking

Boiler was leaking, and now boiler has stopped leaking. Happy with service and will contact in future or jrecommended

5 July 2022
Unprompted review
CUBESER logo

Reply from CUBESER

Thanks so much for taking the time to leave us a great review. About Marc our heating, plumbing and drainage professional engineer.

Our kindest regards

Sue

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