GRM Energy Ltd Reviews

Brilliant job

Brilliant job. I had a heat pumps solar panels and a battery installed. The tradesmen were so good. I highly recommend this company. Thank you so much

Well where to start. First stage was the loft insulation. Not too bad but no air vents put in the loft so when I looked up their the whole roof membrain was covered in water. Extra cost of £100 to have them fitted. Secpund stage was the internal wall insulation. Gosh what a mess. Two of the walls are not fully fixed to existing walls and are not level. The radiators where not refitted at the coldest part of December 2025. Had to do them myself. No skerting boards were refitted. Had to do them myself. Electric sockets were just extended with just one 2.5 cable existing point from the ring mains on each one. Not happy about that. Over a 8 yard skip of rubbish left on site. Had to get a skip and was told I would get the money back for it but as of yet . No joy. Now on to the plumbing which went relatively OK apart from no stud work was but in the new internal walls to hang the new triple radiators too. Had to get legs for them but one was really bad and I had to get a mdf board to screw to the wall so the radiator would stay attached upright. Not ideal really. Air source heat pump didn't work when installed. Went 6 days in all with no heating or hot water. Had to go to b and q and buy some portable heaters. Not really fair to be honest. Another £75 Finally got the heating going with a new pump. Guy who fitted it was great. No paper work left on site for all the work done nore any booklets for the system and controls. So don't really know how to adjust anything. Have asked for these twice now. Scuffolders we're a night mare. Left it up for neally 3 weeks after work completed and held up other work on the house. No one seemed to gave a dam. Had the works inspection and their is a few things that need to be put right but no contact since. The biggest one is the upstairs bathroom fan go's straight into the loft. It should be attached to a outlet vent tiile which has not been fitted. It was ordered weeks ago. Cables on the solar panel run along the outside roof tiles and then over the pitch which I asked and said I didn't want any cables showing so please put them in the roof and across inside so they are not on show. The biggest problem I have is communication. Hardly anyone answered emails and no one answering the main phone number. Someone does answer the lincon branch [Sub contractor ] buy never calls back when they say they are going too. In all very disappointed with everything but hopefully I get all the paper work and booklets soon .

Brilliant work done by very professional young team, friendly and they thanked me for making them welcome in my home,all fitted and supplied in a week.

If I could give, they'd have 6 stars 🌟. The team have recently installed a full heat pump system with new radiators, solar panels, loft insulation and new vents. The GRM instalation team were amazing, I wasn't the easiest customer with 8 dogs it was a bit like playing a sliding jigsaw for a few days but the guys were friendly, considerate and did a really good job of everything, high quality insulation and worked around the small house installing an insulated shed outside for my water cylinder. Couldn't recommend enough.

Great job done insulating walls and my loft, extractor fans and window vents were also installed for ventilation. The flat feels a lot warmer already 🙂 Thank you!

The guys that came out were so professional the leader was hashim he was brilliant explained everything. I watched them he talked me through how the insulation will be done in the loft and the cavity walls. They all did an amazing job. This company is brilliant if anyone thinks about getting this done go with them. From the moment this was booked in the staff are extremely professional. We are so happy with the job our house this winter has not needed the central heaters on for more than 30 mins and warms up even better now and keep the heat it. So thank you soo much as I have an elderly mum who lives with me and three young boys.

My mum had her loft and walls insulation. The service from start to finish was very quick. Excellent service and a very professional company. They kept you informed of every steps. I was very impressed. Brilliant 👏

GRM took care of my energy upgrades consisting of solar, storage heating and cavity wall insulation. They were brilliant company right from the beginning with excellent communication and the sub contractors they used were top notch and did an excellent job and were reliable. I really recommend this company, they were always there at the end of the phone and explained the procedures well. 5 stars from me. Thank you!

Waste remaining in my front garden and blocking rear access to my property. In short i no longer have a front garden. Work not completed and a number of radiators no longer working. Initial call answered and promises to rectify however no contact for 10 days and no longer answering calls. Will be notifying them in writting that storage costs will be put in place and the waste can be left there as long as they like.

Please be warned they are scammers. Has surveyor came round mine last year in December 2025 then 3 days later they want me to sign contract which I did then in January 2026 been told there no funds I thought that’s rubbish. When surveyor drill my cavity wall outside was going to fill in with white fillers I went excuse me oh no way yours it’s not a proper cement filler they never came back to fill it. So I got someone else to do it for me. Please be warned they are scammers I emails then and called them no answer. I was so angry and I believe I’ve had a few things missing from my loft. Do not go there I’ve could have call the police about it. Please beware.

if you are thinking about having solar panels GRM Energy LTD are a great company to work with, everyone i had an interaction with was so helpful and professional, they were able to walk me through the process step by step, the guys that fit the panels were brilliant i’ve never seen someone work so hard, they did a brilliant job no mess no fuss. i’ve had my panels since October and i can’t believe how much i’m generating even in these winter months, roll on summer. Highly Recommend GRM ENERGY

Thanks so much for our new heating system. The Air source and solar have saved us so much money and the house is so much Warmer. Loving the heating controls and the app that we can use when away to make sure we can control the temperature. Process has been easy, the installation team were fantastic and have done a great job . Office girls were all polite and helpful . Great experience, Thank you.

I would like to thank the staff they where amazing so so helpful for my mum works they help us so so much the work was so good 💯 clean tidy and very good all round i would like to say they are top company and would recommend them to everyone amazing Mrs d bunting

damage done to property

we have just had this company install a heat source pump and solar panels they have ruined 2 of my carpets and on contacting them they did not answer the phone and was not replying to emails i sent them pictures of the damage they then replied this morning and tried to say they spoke to a family member and that person had said carpet protection was not required as we have 4 dogs well both of them statements are a lie cause we have 3 and only 1 is in the area that they was working and i know 100% they was not told carpet protection was not required they seem like a company of cowboys would never have dealing with them again and dont use aquatec plumbing and heating cause they bullshit

After the initial review and eligibility checks the work was done, and it was much less hassle than I thought. Great team, very thorough. Alex was my go to, and she was absolute gold -still is with after care- with all the installation process. Can’t recommend enough.

The engineers where both polite and helpful. They worked quickly and efficiently. Great job would recommend to anyone.

Absolutely a bunch of cowboys, my home is destroyed inside and outside Multiple calls no return calls and just blanks all emails tried everything so had to get intouch with building regulations and council, they have left industrial waste in my house and garden the house is inside is trashed, the kettle is full of debris and all carpets are ruined, can’t live in the house due to the mess and they couldn’t give a crap, new year solicitation will be sent to recover cost Do not use they lie and their promises are nil Be warned this is not finished avoid at all cost

This company has ruined my home they…

This company has ruined my home they have lied and now left my home in a state of damage and destruction The flooring is ruined, the rooms are full of plaster as well as the appliances, the electrical fixtures have been damaged and now don’t have heating in my home pics show the damage , I have been told not to turn the central heating on in case of a fire hazard, contacted them and now a week later haven’t replied to my concerns, I’m disabled and now over Xmas cannot live in my own home due to industrial waste left for me to clear , the garden is a bomb site and all the rooms have rubbish left on the floor , the appliances that I said they can use have been damaged with most having to be thrown but on contact with the contractors they lied saying all waste would be collected but now have blocked my calls. The company was made known of these problems and was to contact me last week but have chosen to ignore my calls , this is the worse company I have ever known they should be stuck off from offering energy services, the legal side will start in the new year, unfortunately I have to stay with friends until this is resolved through the courts as with the pictures you can see the damage they have caused as well as the stress it has coursed me . Avoid at all cost they are cowboys

Well, my overall experience was questionable to say the least. At first, we had the internal wall insulation team come out and they where the most unprofessional team I have ever encountered, they were rude, messy, left my home in a total state, they left rubbish on my driveway for over two weeks. They treated me with the littlest amount of respect. However, the jones and baker team, Todd and Luke, showed the up most respect for my home, explained what the plans where and how they were planning to tackle them, they showed pride in their work and kept me informed the whole time. Jones & baker team alone made the experience so much better and I was glad we ended the week with them. So Thankyou Todd and luke. 5* business and would happily recommend them to anyone.

Great experience with GRM Energy Ltd, they installed solar panels and storage heaters in my house in half a day. Their installers were professional , obliging and courteous. From initial contact to completion I rate them 5 star. If needed I will use them again. A.P.Oostermeijer from Wales

We had an air source heating install…

We had an air source heating install done by GRM Energy, the team was professional, hard working and very approachable throughout the install. I have been contacted twice by GRM energy since to confirm that all is working as should. I would have no hesitation in recommending GRM Energy for any install you may require. D. Rees

Prompt service from start to finish was around 4 weeks. All stages covered and explained any issues managed to call the plumber to get rectified. Polite staff all the way through from the first surveyor that came to the last man to take the scaffolding fown. My only criticism no out of hours contact details if any problems arise when out of hours. Would highly recommend thus company professional through and through 10/10. Thanks for the service

We recently had solar panels and a heat pump installed by GRM and everything went as promised from start to finish. They were very professional and kept us informed through out the process. They were able to arrange everything pretty quickly for us and the new systems are working well. GRM is definitely worth talking to if your thinking about these systems! Thank you

From first conversation to having solar…

From first conversation to having solar panels on my roof was only 3-4 weeks! The company is super efficient and I am delighted with the results. Here's to cheaper energy bills. HH West sussex

I recently had a solar panel system and air source heat pump installed by GRM Energy Ltd .From start to finish, the team was professional, knowledgeable and dedicated to delivering top-notch service. The solar panels are performing exactly as promised, significantly reducing my energy bills and the air source heat pump is an excellent addition—efficient, quiet, and environmentally friendly. The installation process was seamless, with clear communication at every step. The team took the time to explain how everything worked and ensured I was comfortable with the system before completing the job. Not only am I thrilled with the performance of the systems, but I’m also impressed by their commitment to sustainability and customer satisfaction. I highly recommend GRM Energy Ltd to anyone considering renewable energy solutions!