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Rated 5 out of 5 stars

Had a Vaillant air source heat pump and solar panels installed last year and everything went so smoothly. My biggest concern was replacing oil boiler with ASHP but its honestly made such a difference.... See more

Rated 5 out of 5 stars

James and his two young team members were absolutely fantastic in carrying out the retrofit attic Flooring in my home. They were courteous, knowledgeable, and offered excellent advice throughout the... See more

Rated 1 out of 5 stars

Not regarding to anyone.Just be aware people of this company. They come over to do insulation in my property and they destroy our paving and leave our garden in total mess. Run like rats away from my... See more

Company replied

Rated 5 out of 5 stars

Right from the start friendly Gerry led us to an excellent company and an " warmer " home. Thanks Gerry. In the office Mellissa followed up with friendly manner and organised work to suit us. Boile... See more

Company details

  1. Energy Equipment and Solutions

Written by the company

We install energy efficient upgrades through the government's Energy Company Obligation (ECO) Scheme. Through the ECO scheme, you could receive funding to cover or contribute towards the cost of your home efficiency improvements. ECO was launched in 2013 to help make energy saving measures, such as heating and insulation, affordable for householders. Every major energy company in the UK has been obligated to provide funding for installations that cut carbon emissions and reduce consumer fuel bills. Retrofit Group Ltd works in partnership with energy companies and has access to ECO funding. Find out if we can improve the energy efficiency of your home today with any of the following upgrades... Gas Boiler, Loft Insulation, Internal Wall Insulation, Air Source Heat Pump, Heating Controls, Solar Panels, First Time Central Heating, Room in Roof Insulation and Cavity Wall Insulation. To get in touch, give us a call on 0141 260 5837 (Office Hours: 9am - 5pm, Mon - Fri) or send an email to admin@retrofit-group.com


Contact info

4.2

Great

TrustScore 4 out of 5

33 reviews

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Replied to 100% of negative reviews

Typically replies within 2 weeks

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Rated 5 out of 5 stars

Highly Recommend

Had a Vaillant air source heat pump and solar panels installed last year and everything went so smoothly. My biggest concern was replacing oil boiler with ASHP but its honestly made such a difference. Guys explained everything beforehand and took me through how to operate and keep tabs on my bills afterwards via the solar app. So glad I went ahead and would recommend Retrofit Group to anyone.

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

James and his two young team members…

James and his two young team members were absolutely fantastic in carrying out the retrofit attic Flooring in my home. They were courteous, knowledgeable, and offered excellent advice throughout the process. I would highly recommend this wonderful team—thank you for doing such a great job!

April 2, 2026
Unprompted review
Rated 5 out of 5 stars

Brilliant from start to finish…to begin…

Brilliant from start to finish…to begin with I thought it was too good to be true but how wrong was I …the boys were great they had dust sheets down before they started and did a fantastic job then when they were finished they tidied up all the mess and hoovered up behind them…can’t fault anything and love my new heating system🤗o

March 13, 2026
Unprompted review
Retrofit Group logo

Reply from Retrofit Group

Thank you for your 5 star review! We’re delighted to hear you had a positive experience with our team. Customer satisfaction is very important to us, so your feedback means a lot. Thank you again for choosing us.

Retrofit Group

Rated 5 out of 5 stars

Had loft insulation installed,extractor…

Had loft insulation installed,extractor fans fitted in kitchen and toilet also vents put in in all windows,great job done by retro fit and workmen were excellent

February 4, 2026
Unprompted review
Retrofit Group logo

Reply from Retrofit Group

Thank you for your review John! We are extremely pleased you had a positive experience with us!

Retrofit Group

Rated 1 out of 5 stars

Unprofessional and pushy

I’m extremely disappointed with my experience.
They came to my property to carry out an EPC survey to assess eligibility for insulation. The survey itself went well - the gentleman who visited was friendly and polite, and shortly afterwards I was informed that we were eligible.

However, due to having young children and a very busy schedule, I wasn’t able to respond immediately. In what felt like a very short space of time, I was then told that materials had already been ordered and that I had been booked in for the work - without me signing anything or giving any formal agreement to proceed. I was completely shocked. Why would a company order materials and schedule a job without clear confirmation from the homeowner?

After doing further research and reading other reviews, I decided the insulation wouldn’t be suitable for us. I became concerned about how much smaller it would make the room and the issue of a doorframe being too close to the wall. I explained this once I had the chance.

Instead of understanding, I was told that they had already spent hours on this and that the least I could do was take a call the next day. I clearly explained that it wasn’t a good week for me and that I wouldn’t be available for a phone call. That should have been respected.

Unfortunately, they continued to press the issue. This week happens to be the anniversary of my son’s death - something deeply personal that I did not initially feel I should have to explain. When I reiterated that I would not be taking a call and that I had never agreed to the work, the response I received was extremely rude. I was told it was unfair of me to “put that on him” and that my message was disgraceful.

At no point did I sign or agree to any contract. I feel the company acted prematurely and then handled the situation very unprofessionally when I chose not to proceed.

Based on my experience, I believe I have dodged a bullet. I would strongly advise others to be cautious and ensure nothing is progressed without explicit written agreement.

February 15, 2026
Unprompted review
Retrofit Group logo

Reply from Retrofit Group

Thank you for taking the time to share your feedback. Firstly, we would like to say how sorry we are to read about the personal circumstances you mentioned and sincerely apologise if any communication you received at that time caused additional distress.

We are pleased to hear that your experience with the assessor who carried out the survey for your EPC was positive. He is a member of our team and we are proud of the professionalism and courtesy our assessors aim to demonstrate when visiting customers’ homes.

However, we would like to clarify that the other individual you have referred to is not an employee of our company. This person is a member of a separate third-party lead generation company, which works with a number of installers across the industry. They handle some of the early-stage contact with customers following an eligibility check.

We want to be clear that our company does not authorise installation work, order materials, or proceed with any project without a homeowner’s explicit agreement. If any communication from a third party suggested otherwise, that is not reflective of our processes.

We also do not condone anyone speaking to a customer in a manner that could be perceived as rude, dismissive or pressuring. Your feedback has therefore been shared with the third-party company involved so that this can be addressed appropriately.

We appreciate you bringing this to our attention and are sorry that the overall experience left you feeling uncomfortable. Should you wish to discuss this further, please feel free to contact us directly and we will happily review the matter in more detail.

Many thanks,
Retrofit Group

Rated 1 out of 5 stars

Not regarding to anyone.

Not regarding to anyone.Just be aware people of this company. They come over to do insulation in my property and they destroy our paving and leave our garden in total mess. Run like rats away from my property and don't even let us know that they finished the job because they know what they done. Contacted the company and they refused to fix it and of course they said they not done anything.People be aware

August 15, 2025
Unprompted review
Retrofit Group logo

Reply from Retrofit Group

Hi Artur,
I have requested some further information from you via Trustpilot as we don’t recognise your name nor have we had any complaints of this nature so fear you may have stumbled on our domain by accident. We are a Glasgow based company. If you can reply via Trustpilot so we can investigate this it would be much appreciated.
Thanks and hopefully speak soon

Nicola
Retrofit Group Ltd

Rated 5 out of 5 stars

Amazing company, amazing service.

Cannot thank these guys enough for my new boiler! I am super chuffed. From the first phone enquiry to the day of installation, I couldn't believe how quick and easy the whole process was! What a fantastic, friendly and very professional service! I highly recommend these guys.

August 19, 2025
Unprompted review
Retrofit Group logo

Reply from Retrofit Group

Thank you for your 5-star review! We really appreciate you taking the time to share your experience. Our team works hard to provide a professional and smooth service, so it’s great to hear your feedback. If you ever need any further assistance in the future, please don’t hesitate to get in touch.

Retrofit Group

Rated 5 out of 5 stars

Cost Saving

A big thank you to Retrofit Group who fitted our loft insulation, a new boiler, extractor fans in both bathroom and kitchen, and also trickle vents in all windows inside and outside plus a heating element beneath a cupboard in the kitchen, which was provided through the Eco 4 system, all the workmen were very thorough and tidied up after they were finished. The heating engineer started at 8am and as it was a big job didn't finish till 7.45pm ensuring everything was working even the office staff were 1st class in their communications .

June 4, 2025
Unprompted review
Retrofit Group logo

Reply from Retrofit Group

Thank you for your 5 star review! We're really pleased to hear you were happy with the service provided. Both our office team and installation team strive to deliver the best service possible to our customers.

Retrofit Group

Rated 5 out of 5 stars

Great company, Gets the work done.

The company and the work team were amazing.
I was dreading having my boiler replaced, however this was made really easy by the organised manner in which the work was carried out. I would have no worries in sending anyone to them to have work carried out. Thank you so much, so pleased with the result. Shirley

June 10, 2025
Unprompted review
Rated 5 out of 5 stars

First class work

Free new boiler and loft insulation carried out on 9th, June. Company recommended by Gerry, really helpful. Mellissa in office guided me through the whole procedure. David the engineer and other workers were first class, keeping me informed about work getting done. Would highly recommend the company.

June 9, 2025
Unprompted review
Rated 5 out of 5 stars

Good company

Kept informed every step of the way.

The boys wh9 did the work put down dust sheets the hoovered up before they left

Excellent service

May 2, 2025
Unprompted review
Rated 5 out of 5 stars

Confident to recommend ..........

Right from the start friendly Gerry led us to an excellent company and an " warmer " home. Thanks Gerry. In the office Mellissa followed up with friendly manner and organised work to suit us. Boiler installed by Davie, many thanks..
Loft insulation installed by friendly and efficient workers. For window vents , they had rain and cold, no problem. Electric fan and extractor fitted. Excellent company and workers in all respects....
Highly satisfied, and highly recommended........

February 4, 2025
Unprompted review
Rated 5 out of 5 stars

Brand New Free Boiler!

I had a free new boiler installed on the 14th November 2024. I was a little nervous as I thought it was too good to be true. I nearly cancelled the whole thing. David the engineer arrived at 8am followed by the guys for the loft insulation and extractor fans. They all worked very hard and within the given timeframe. Communication from Melissa was excellent. Many thanks again to Kevin & Gerry

November 14, 2024
Unprompted review
Rated 5 out of 5 stars

New Central heating boiler installed.

New Central heating boiler installed.
First class tradesmen very polite and helpful. Work carried out to high standard. Kept property tidy at all times , no mess left. Credit to office staff and trades, very professional.
Joan Dickson

November 26, 2024
Unprompted review
Rated 1 out of 5 stars

The first guy who came round to look at…

The first guy who came round to look at my loft told me my old loft insulation would be removed and new insulation replaced. When surveyor came round to take photographs of loft and also radiators in whole house including windows and doors, also repeated, old loft insulation would be removed before new insulation installed. I signed consent forms and when receptionist phoned to arrange date for top up loft insulation I was not pleased I had been misinformed. The manager Andy phoned and told me they would get their fingers rapped if they disposed and renewed loft insulation. I therefore cancelled loft insulation, just wonder if this company still managed to receive the money from the government to say my job had been completed, as I have read similar instances of different companies not actually carrying out the work once forms have been signed. Who is to say, that these companies are actually being paid through the government scheme for work they haven't done.

September 10, 2024
Unprompted review
Retrofit Group logo

Reply from Retrofit Group

Hi - thank your for your feedback. As per our records, your property was surveyed for a loft insulation top up through the GBIS Scheme. I do apologise that there was a miscommunication at the beginning of your process regarding loft insulation top up vs. removal. Under ECO 4 and GBIS, we are unable to remove pre-existing insulation which is confirmed in one of the documents we must get customers to sign. This was again confirmed by our manager once the miscommunication became apparent when we tried to book you in for a loft top up.

As an installation company, we absolutely cannot claim funding for installations which we have not carried out. To claim funding, we must submit a substantial amount of evidence for our work to show we have met PAS 2035 and Trustmark standards, as well as working in line with Ofgem guidelines which is all verified by an independent Trustmark Coordinator. This is all set-in place to prevent fraud. Therefore, claiming funding would be virtually impossible for work we haven’t completed.

I am sorry we were unable to go ahead with your loft insulation in this case, however, we must work to the guidance set out by Ofgem.

Retrofit Group

Rated 5 out of 5 stars

Boiler Upgrade

Special mention for Mellisa, Billie, Lindsay during the process of my boiler upgrade. Also compliments for the install engineer “David “ first class job, so pleasant.
On reflection the above mentioned girls were also so pleasant & helpful. Would recommend Retro-fit Group
To anyone, have no complaints. Keep up the good good work.

October 3, 2024
Unprompted review
Rated 1 out of 5 stars

Worst experience ever!

Worst experience ever!
The tradesmen failed to use dust sheets over flooring and work tops. Flooring was damaged, worktops damaged, personal item broken. After several visits they decided to repair flooring, which wasn’t fully repaired, only part of it. They declined to repair work tops, so now I have to pay for this myself. They didn’t even bother to offer money towards the worktops, nor did they offer to replace the broken personal item. No reason given why they weren’t fixing the damage to work tops. After boiler was installed we were advised that rough casting to building would be done, after several emails about this they reluctantly decided to repair where was needing roughcasted, which isn’t exactly completed well, no doubt will need to pay to have this remedied myself too. Was advised prior to fitting that I may have to pay £200 for pipe work to boiler but this would be checked when fitter had arrived to fit new boiler, well he must have been magic, as he hadn’t even arrived at my door when Retrofit phoned wanting the money as the pipes would need upgraded. Have since noticed they have damaged my pvc ceiling in kitchen when removing old water tank, will I ask them to repair …… why bother!! as this company is not interested in customer service, is this due to the fact that my boiler was installed via the govt funding service and as the govt would have paid out regardless of their shoddy workmanship Retrofit wasn’t interested in any trail of damage that had been caused.
Watch out for the electrician as he installed the kitchen fan vented into my loft which would have eventually caused condensation / damp problems and again after several emails they agreed to vent it through the roof. Also, when water tank was removed I was advise electrical wires would be removed, well they’re still hanging around, hope they wires ain’t waiting on the electrician coming back, as reckon they will be hanging around for a long time, so even more financial cost to me to get these wires removed .
Will never recommend this company even if they were the last ones on earth.

UPDATE

Further to your response it appears you are blaming the customer for the damage to the kitchen.
I can confirm that there was no damage prior to your tradesmen being in my property and this damage was caused by said trades.
And would confirm the flooring was not just one scratch it was indeed 2 scratches and a large dent out the flooring.
Nobody mentioned that we wished the flooring and worktops to be renewed a simple repair would suffice, as you did with the flooring.
I am certainly not happy that as the customer you appear to be blaming me for the damage

April 11, 2024
Unprompted review
Retrofit Group logo

Reply from Retrofit Group

Hi Lesley,

Thank you for taking time to share your feedback. We value all customer reviews as they help us to continuously improve our services. After thoroughly reviewing the details of your feedback, we would like to provide some clarity on the situation.

Based on our records:
The property was attended by an independent monitoring company who inspects the technical aspects of all our work to ensure we comply with the strict regulatory standards of the ECO Scheme. During the inspection, the issue with the venting for the fan was discovered and this was booked to be rectified as soon as we received the report back.

Upon receiving the complaint regarding the scratch on the kitchen flooring and worktop, and damage to a fridge magnet (personal item), an internal investigation was carried out. Several visits to the property were arranged including a visit by senior management. The outcome of these visits combined with photographic evidence on the day of install and testimonies from our tradesmen lead us to conclude that the issues mentioned were not as a result of our tradesmen. However, while we did not accept liability for the issues mentioned, we want to ensure customers have a positive experience with our company. As a gesture of goodwill, we arranged for the section of flooring mentioned to be repaired. This was also when the roughcasting was booked in. It then became clear that the desired outcome of the complaint was for Retrofit Group to replace the entirety of the kitchen flooring and worktops or pay for the equivalent. While customer satisfaction is our top priority, this is simply not something we could do.

Regarding the gas line upgrade payment, our engineers have full access to the survey pictures of the property. From these pictures, they can usually determine what work is required and give a price for the gas line upgrade in advance. Not all properties require a gas line upgrade but where they do, it is necessary to comply with Gas Safe regulations. The engineer passes the information on to the office who contact customers to discuss. Customers are always made aware in advance of any potential costs and can cancel at any point.

We are disappointed that this has been a negative experience, however we stand by our integrity and our decision in this instance. Thank you again for your feedback.

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