Green Building Renewables Reviews 306

TrustScore 4 out of 5

4.2

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Rated 5 out of 5 stars

We recently had Green Building Renewables install an air source heat pump, along with the necessary wider radiators. We are now enjoying the results- a comfortably warm house! From the start of the... See more

Rated 1 out of 5 stars

I am leaving this review until our problem gets sorted. The company were efficient at installing, and they said that they had great aftercare. We have had the solar for over a year and it’s cu... See more

Rated 5 out of 5 stars

From first contact with Victoria at GoEco Renewables and until my solar panels were removed from my house I found the process worry free because I was always kept informed throughout. The engineers... See more

Company replied

Rated 5 out of 5 stars

What a great team! Mark and Martin arrived late morning, pleasant, polite and cheery, ready to fit the solar panels. Got straight to work and finished in a timely manner, clearing up behind them a... See more

Company replied

Company details

  1. Solar Energy Equipment Supplier
  2. Boiler Supplier
  3. Electric Vehicle Charging Station
  4. Environmental Renewable Natural Resources
  5. Solar Energy Contractor

About Green Building Renewables

Written by the company

Whether you are looking for a solar panel and battery sytem, an air or ground source heat pump, underfloor heating or an EV charge point, our friendly, award-winning team is here to help. Are you thinking about a boiler replacement, or how renewables could help lower your energy bills? Do your want to know how solar panels can reduce your environmental footprint; whatever your enquiry, we can provide our expert advice to help you on your journey to lower electricity and heating bills.

We are an MCS certified installer, members of the Renewable Energy Consumer Code (RECC) and registered with Trustmark. Our team of qualified, experienced engineers are registered with NICEIC, Gas Safe and OFTEC, giving you the peace of mind that you are in safe hands. We install a range of products, including Air and Ground Source Heat Pumps, Underfloor Heating, Solar PV, EV Charge Point and Battery Storage.

Green Building Renewables is a well-established business headquartered in York, with a growing number of locations located across the UK.

We will support you every step of the way with your choice for low-carbon and renewable technology, from planning and design to installation and aftercare. We can even provide support and information about funding and incentive schemes like the Government's Boiler Upgrade Scheme (BUS).

If you have any questions about renewable energy, renewable technology installation, solar panels, electric vehicle charging, air and ground source heat pumps or battery storage like the Tesla Powerwall, please don't hesitate to contact us.


Contact info


4.2

Great

TrustScore 4 out of 5

306 reviews

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Hasn’t replied to negative reviews

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Rated 5 out of 5 stars

Great team and efficient installation

We recently had Green Building Renewables install an air source heat pump, along with the necessary wider radiators. We are now enjoying the results- a comfortably warm house! From the start of the project, we were given helpful advice and a couple of visits were made in advance- their preparation was thorough and tailored to our particular site and requirements. The team, Dave and the other guys, who made the installation, arrived when arranged, worked quickly, cleanly and efficiently, communicated with us about what they were doing and then how we should use the new heating system. During the installation it was necessary that the old heating and hot water cylinder was removed, but they loaned up some electric oil heaters and made sure that we had a supply of hot water over those few days; we were very grateful for this.

December 6, 2025
Unprompted review
Rated 1 out of 5 stars

Aftercare

I am leaving this review until our problem gets sorted.
The company were efficient at installing, and they said that they had great aftercare. We have had the solar for over a year and it’s currently not working anywhere near as well as it did last winter. It’s 70% less efficient.
We send an email a week to try and get the aftercare that we were promised and we just get replies saying ‘we are doing everything we can, but we are waiting for fox to get back to us on why it’s not working properly’

This has been going on for 5 weeks.

The last email got no reply.

I would honestly be wary going with these guys as we are paying for electricity and have been for over a month. The system isn’t working and there doesn’t seem to be anything happening at all.

November 26, 2025
Unprompted review
Rated 5 out of 5 stars

21 Degrees Renewables

few years ago I had Solar PV panels fitted to the roof of my house near York by the company now known as 21Degrees. (Formerly Green Buildings Renewables) The panels have been faultless since fitted and have saved me a small fortune in Electricity Bills. I have since invested in an electric car and charger I charge my car on our drive using the chargers Eco+ function. The Sun is converted by the Solar Panels into Electricity which charges my in house panels and my EV car. The company 21 Degrees are extremely knowledgeable and helpful.I can thoroughly recommend their services.

May 9, 2025
Unprompted review
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Reply from Green Building Renewables

Hi Christopher. Many thanks for taking the time to leave us a review. We're really pleased that you're happy with your Solar PV panels and your service from 21 Degrees.

Rated 1 out of 5 stars

I have just received my warranty but....

I have just received my EV charger commissing pack, letter dated 16 April 2024. I had to drive a round trip of 20 miles to collect it from my nearest sorting office as the postage was underpaid and that cost me £1.50. A year after my charger was installed.....
Why has it only been sent out recently and why with the wrong postage? After spending over £11,000 on solar panels and the charger I am more than a tad disappointed. Having to pay for fuel, time and Royal Mail costs to get this pack seeing a letter dated 11 months and 3 weeks ago simply adds insult to injury

April 5, 2025
Unprompted review
Rated 1 out of 5 stars

A complete shower

In my experience, a complete and utter shower. One year ago what was supposed to be a 3-4 day ASHP installation left us without heating for 5 *weeks*, because "some plumbers have left the company", and then they were unable to source the necessary radiators. Now on ringing them for the first annual service, as required by my warranty, they are unable to give me a date, as "some engineers have left the company". They hope to put a plan together "within a few weeks" but are unable even to tell me when they might be able to provide a date. Unfortunately, I am obliged to get them to do the service, to maintain the 2 year warranty on their workmanship, and as some of the radiator pipework is decidedly dodgy, I'd like to maintain that if possible. I really can't recommend this company.

Oh, and they also forged my signature on a contract with Northern Powergrid, which I knew nothing about until contacted by the latter

March 13, 2025
Unprompted review
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Reply from Green Building Renewables

Thank you for sharing your feedback. We apologise for the issues you encountered during your installation and the lack of follow-up since. We take customer satisfaction seriously, and we're sorry to hear about the multiple challenges you've faced, from the installation to the communication. Your experience is not reflective of the high standards we aim to maintain, and we appreciate you bringing this to our attention. We will review your concerns internally to ensure this does not happen again.

Rated 1 out of 5 stars

Terrible service

We had solar panels and heat pump installed by Green building renewables (now renamed 21 degrees). Terrible service. Install was significantly late, with much turn over of personnel, and some installers not having the requisite knowledge. They had to send an engineer down who knew more but that further delayed the install. And now half a year later we still have not received all the expected paperwork. We tried to calling and emailing multiple times and we just kept getting fobbed off with promises they are looking into it. It nothing has materialised so far. This is very disappointing.

July 1, 2024
Unprompted review
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Reply from Green Building Renewables

Thank you for sharing your feedback. We apologise for the issues you encountered during your installation and the lack of follow-up since. We take customer satisfaction seriously, and we're sorry to hear about the multiple challenges you've faced, from the installation to the communication. Your experience is not reflective of the high standards we aim to maintain, and we appreciate you bringing this to our attention. We will review your concerns internally to ensure this does not happen again.

Rated 5 out of 5 stars

One-stop shop for renewables

As self-builders, we decided to use a one-stop shop for all our renewables and feel so lucky we chose Green Building Renewables. Solar and batteries, ASHP and underfloor heating were all calculated based on our specific needs. Matt Cowley from the Daventry branch held our hand throughout the whole project, always available to discuss issues and offer advice and solutions. The team are all friendly, polite and professional. The result is a system which looks great and delivers. We can’t recommend them highly enough.

October 25, 2024
Unprompted review
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Reply from Green Building Renewables

Hi Amanda,

Thank you so much for your kind words and for choosing Green Building Renewables, for your project! We’re thrilled to hear that our team, especially Matt and the Daventry branch, provided the guidance and support you needed throughout your build.

Creating a tailored system that meets your specific needs and enhances your home’s efficiency is always our goal, and we're so glad to know that you're happy with the results.

Your recommendation means a lot to us, and we're here for any future support you may need. Wishing you many years of sustainable, comfortable living in your new space!

Rated 5 out of 5 stars

Definitely recommend!!

Chris has been really helpful in advising us of the best solar panel system for us. The chaps that turned up to complete the work were on time, reliable and honest.
We’re really happy with the system and the service - we wouldn’t hesitate to contact Chris should we need any further help or support.
It’s definitely been worth doing and they are exporting well and providing us a good amount of energy.
Definitely recommend to others!

June 24, 2024
Unprompted review
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Reply from Green Building Renewables

Hi Joanne,

Thank you so much for your wonderful review! We're thrilled to hear that Chris was able to provide you with the best advice for your solar panel system and that the installation team was reliable and professional. It's great to know that you're happy with the system and that it's already generating plenty of energy for you.

Your recommendation means a lot to us, and we’re always here to help if you need any further support. Thanks again for choosing us!

Rated 5 out of 5 stars

Excellent job and Company

They are an excellent company 👍came when they said they would and did a great job tided up after themselves Leo - Jordan did an brilliant job with the weather being really bad would have no problem recommending them so thank you to Matt and office staff

September 30, 2024
Unprompted review
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Reply from Green Building Renewables

Hi Carl,

Thank you so much for your kind review! We’re delighted to hear that you were pleased with the service, even with the challenging weather conditions. Jordan and the entire team always strive to deliver top-notch results, and your recommendation means a lot to us. Matt, the office staff, and everyone involved appreciate your recognition of their hard work.

If you ever need anything else in the future, don’t hesitate to reach out. Thanks again for choosing us!

Rated 5 out of 5 stars

AFTER SALES EXPERIENCE

After sales is an excellent indicator of a company's performance. Having had a couple of things go wrong in recent months on each occasion the company has responded quickly, kept me updated and sorted out the problem quickly and efficiently. Full marks to both admin and the engineer.

October 3, 2024
Green Building Renewables logo

Reply from Green Building Renewables

Thank you for your great review and feedback Michael, I have shared this with the team.

Rated 5 out of 5 stars

Excellent company to deal with

I have now used Green Building Renewables for three projects. Fitting my Tesla power wall, installing an EV charger and expanding the power wall.

On every occasion the work has been carried out professionally and to a very high standard.

I genuinely cannot rate their engineers highly enough.

Extremely pleased with all the work they have done for me.

September 27, 2024
Unprompted review
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Reply from Green Building Renewables

Hey Andrew,

Thank you so much for your continued trust in Green Building Renewables! We’re thrilled to have had the opportunity to work on three of your projects, from fitting your Tesla Powerwall to installing your EV charger and expanding the Powerwall. It’s fantastic to hear that our team consistently delivered work to a high standard, and we’re grateful for your kind words about our engineers.

Rated 5 out of 5 stars

Referred a customer to GBR for a ASHP…

Referred a customer to GBR for a ASHP installation in Norwich recently and they had a great service from start to finish, The communication was top notch and they had a great experience all round. A happy customer all round. Would recommend again.

September 10, 2024
Unprompted review
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Reply from Green Building Renewables

Thank you so much for your wonderful feedback and for referring a customer to us for their ASHP installation in Norwich! We’re thrilled to hear that they had such a positive experience with our team from start to finish. Clear communication and customer satisfaction are top priorities for us, so it’s fantastic to know we met your expectations.

We truly appreciate your recommendation and look forward to working with you again in the future. Thanks once again for your support!

Rated 1 out of 5 stars

Extremely unhelpful company despite being a regular customer

Called the company as a regular customer as my Air source heat pump system wasn't working. They refused to come out as they hadn't installed the system despite the fact they had serviced it every year for the last 4 years. Told me to find a local company! I did say they were my local company, but that cut no ice! Very disappointed with their attitude

September 10, 2024
Unprompted review
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Reply from Green Building Renewables

Dear Sue,

Thank you for talking with Nathan from our team to explain the situation and for us to understand what has happened in the transition between your local company and its merger with Green Building Renewables. We very much appreciate you taking the time to talk to us and helping us to resolve the issue.

Rated 5 out of 5 stars

5* professional service

Really pleased we chose GBR to instal our solar panels and battery. Each interaction was prompt, pleasant and easy. The team always arrived on time. Would recommend this company to everyone.

August 29, 2024
Unprompted review
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Reply from Green Building Renewables

Thank you for your review Alecia, we are glad you are so happy with your installation.

Rated 5 out of 5 stars

We could not be more pleased

We have just had a large installation completed by the Norwich/Acle branch at my house in Suffolk. 21 solar panels, 3 batteries, an air source heat pump and all the radiators upgraded.

What a fantastic and professional job well done! Every one of the team (and there were a lot of them) from the initial survey to completion were professional, courteous, and extremely tidy. The attention to detail was superb. They delivered exactly what we asked for and accommodated our specific requirements, so we could not be more pleased.

If you are looking for green technology in your home, talk to Green Building Renewables... highly recommended.

September 5, 2024
Unprompted review
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Reply from Green Building Renewables

Thank you so much for your wonderful feedback! We're thrilled to hear that you're pleased with your impressive renewable installation of new solar panels, batteries, air source heat pump, and upgraded radiators. It’s great to know that our team in Norwich delivered exactly what you were looking for and that their professionalism, attention to detail, and tidiness made the process smooth and satisfying for you.

Your recommendation means a lot to us, and we’re proud to have been part of your journey toward greener living. If you need anything in the future, please don’t hesitate to reach out. Thank you again for choosing Green Building Renewables!

Rated 5 out of 5 stars

Excellent customer service

Excellent customer service over the phone, by email and in person from the engineer who came out on the call.

August 30, 2024
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Reply from Green Building Renewables

Thanks Catherine for your kind review. We're happy to hear that our customer service lived up to ours and your expectations.

Rated 5 out of 5 stars

Replacement of gas boiler with a heat pump

The installation of the heat pump (replacing the gas boiler) was completed in the given time frame, despite some fairly awful weather on the day when much of the work was outside. The new tank was fitted on day 1 and we had hot water from then on so inconvenience was minimised. In addition the price was by some way the best of the three quotes that we had. I would definitely recommend this company.

April 9, 2024
Unprompted review
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Reply from Green Building Renewables

Thanks for your kind review John. Happy to hear that everything went well with the replacement of your gas boiler.

Rated 4 out of 5 stars

Helpful from quote to completing the job job

From giving us a quote to finishing the job, it was done very professional.
They explained everything to us, any queries we had, they explained it to us.

August 13, 2024
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Reply from Green Building Renewables

Thanks for your review Neil. Glad that we could help. We'd love to know how we could have made it a five-star review.

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