Grant Store Ltd (GSL) - Solar & ASHP Installer Reviews 

1.228
•
TrustScore 4.5 uit 5

4,7

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Lees wat reviewers zeggen

Beoordeeld met 5 van de 5 sterren

From initial enquiry to full completion, this company is brilliant. They were helpful, explained everything in simple terms that even I could understand! Jamie and Josh were efficient hard-working po... Toon meer

Beoordeeld met 5 van de 5 sterren

I had Grant Store install an air source heat pump, solar panels and batteries (call me Greta) earlier this year. Grant Store made multiple amendments to the quotes and were able to offer adv... Toon meer

Beoordeeld met 5 van de 5 sterren

This is my second review for Grant Store as they organised the installation of our solar panel and battery system earlier this year. We were so happy with this that were returned for installation... Toon meer

Bedrijf heeft geantwoord

Beoordeeld met 5 van de 5 sterren

Seamless process from start to finish, all contractors & office staff polite, efficient & professional. Cost exactly as quoted. Fitters Jamie, Josh & Leon did a first class job & took us through the a... Toon meer

Bedrijf heeft geantwoord

Bedrijfsgegevens

  1. Zonne-energie aannemer
  2. ook in
  3. Elektrotechnisch installatiebedrijf
  4. Ketel- en verwarmingsdienst
  5. Leverancier van apparatuur voor zonne-energie

Over Grant Store Ltd (GSL) - Solar & ASHP Installer

Geschreven door het bedrijf

Grant Store Ltd (GSL) is a Trustmark-registered energy efficiency provider, specialising in renewable energy solutions across the UK. Since 2017, we have helped homeowners, businesses, and social housing providers reduce energy costs and carbon footprints through high-quality, tailored installations.

Our Services

  • Solar PV & Battery Storage – Harness solar energy for long-term savings.
  • Air Source Heat Pumps – Reduce heating costs with renewable technology.
  • Insulation & Heating – Improve efficiency with loft, solid wall, and room in roof insulation.

With over 100 skilled professionals, we manage projects from consultation to installation, ensuring compliance and excellence at every stage.

Get Solar PV

Get an ASHP


Contactgegevens

4,7

Uitstekend

TrustScore 4.5 uit 5

1K reviews

5 sterren
4 sterren
3 sterren
2 sterren
1 ster

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4,7

Alle reviews

(1.228)

114 reviews in de afgelopen 12 maanden

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Beoordeeld met 5 van de 5 sterren

Fantastic service all round

Great service from beginning to end. Every phone call and interaction was pleasant, friendly and helpful. Scaffolders came and went without any issues. The team that fitted the solar panels was fantastic, did a great job, were careful and considerate in their work and took the time to make sure I understood the installation and the app. I have to say probably the best team I've had doing work at my property. All in all, no stress or hassle at all, I'm a very happy customer! Thanks team!

14 januari 2026
Logo Grant Store Ltd (GSL) - Solar & ASHP Installer

Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you so much for your wonderful feedback.

We’re absolutely delighted to hear that you experienced great service from beginning to end and that every interaction with our team was pleasant, friendly, and helpful. It’s especially rewarding to know that the scaffolders and installation team worked smoothly and professionally, and that the installers took the time to ensure you felt confident using both the system and the app.

Your comment about this being one of the best teams you’ve had working at your property truly means a great deal to us and will be shared with everyone involved. We’re so pleased the whole process was stress-free and that you’re a very happy customer.

Thank you again for your trust and kind words — they’re hugely appreciated.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

seamless and pain free installation

seamless and pain free installation

good communication throughout

19 januari 2026
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for taking the time to share your feedback.

We’re delighted to hear that your installation was seamless and pain-free, and that you experienced good communication throughout the process. Making everything as smooth and straightforward as possible for our customers is always our priority, so it’s great to know we delivered on that.

Thank you again for your review and for choosing us. We’re always here if you need any further support in the future.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

Matt cunningham was really helpful and…

Matt cunningham was really helpful and very professional. He explained everything

15 januari 2026
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you very much for taking the time to share your feedback. We’re delighted to hear that Matt Cunningham was helpful and professional, and that he took the time to clearly explain everything to you.

Providing clear guidance and a high standard of service is something we pride ourselves on, so it’s great to know this was reflected in your experience. We’ll be sure to pass along your kind words to Matt — he’ll really appreciate it.

Thank you again for your review, and we look forward to assisting you again in the future.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

Excellent

Excellent , helpful friendly staff. Job completed on time and to a high standard

10 november 2025
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for your kind feedback.

We’re really pleased to hear that you found our team helpful and friendly, and that the work was completed on time and to a high standard. That’s exactly the level of service we strive to deliver.

Thank you again for taking the time to leave a review — it’s greatly appreciated, and we’re always here if you need any support in the future.

Sarah ~ GSL Aftercare Team

Beoordeeld met 4 van de 5 sterren

Polite, professional and friendly. No time wasting

Jamie, Leon and Josh all turned up on time. They where polite, friendly and professional. Unfortunately the equipment couldn't be placed as agreed with the surveyor due to a lack.of space. The guys did a really good job, no mess left, no time wasting on the job. Helpful with the app etc.

5 januari 2026
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you very much for taking the time to share your feedback.

We’re delighted to hear that Jamie, Leon, and Josh arrived on time and made such a positive impression with their polite, friendly, and professional approach. It’s also great to know that they worked efficiently, left no mess behind, and were helpful in getting you set up with the app.

While we’re sorry that the equipment couldn’t be placed exactly as originally agreed due to the space limitations, we truly appreciate your understanding and your kind words about how the team handled the situation on the day.

Your feedback will be shared with the team, and it means a lot to us. If there’s anything further we can assist you with, please don’t hesitate to get in touch.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

Recently had sola panels plus battery…

Recently had sola panels plus battery storage installed at our property .Workmanship fantastic from the beginning to end of installation excellent aftercare any questions they are at the end of the telephone for any questions.would definitely recommend

16 december 2025
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for your feedback — we’re really pleased to hear that you’ve been satisfied with the service.

We’ll be sure to pass on your kind comments to our team who will be delighted to know their work has been appreciated. If there’s anything else we can help with or if you need further assistance, please don’t hesitate to get in touch.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

A very professional company

A very professional company, from the office staff, the fitters and the engineers. Had a follow up visit from Dan Hartley today, he answered all of our questions and did a very professional and thorough check of the system. We know if we did have any problems then a quick call to the office and they would sort it. Excellent after care service. Highly recommended.

22 december 2025
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

We’re delighted to hear that your experience has been professional at every stage — from our office team through to the fitters and engineers. It’s especially pleasing to know that Dan Hartley provided a thorough follow-up visit, answered all of your questions, and carried out a thorough and professional system check.

Your confidence in our aftercare service truly means a great deal to us. We take pride in being responsive and supportive whenever our customers need us, so your recommendation is greatly appreciated.

Thank you for choosing GSL, and for taking the time to share your experience.

Sarah ~ GSL Aftercare Team

Beoordeeld met 4 van de 5 sterren

Dave

So far I've been very satisfied especially dave the heating engineer

19 december 2025
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you very much for your kind feedback.

We’re delighted to hear that you’ve been very satisfied with our service so far. A special thank you for highlighting Dave — he is a valued member of our heating team, and your praise will certainly be shared with him.

Your satisfaction means a great deal to us, and we appreciate you taking the time to leave this review. Should you need any further assistance in the future, we’ll be more than happy to help.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

My wife is disabled and the installer…

My wife is disabled and the installer was very clean and considerate towards her . Very tidy in his work practices. After he left there was hardly any messages to clean.

17 december 2025
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you very much for taking the time to share your experience.

We’re truly pleased to hear that the installer was clean, tidy, and especially considerate towards your wife. Being respectful, thoughtful, and mindful of our customers’ individual needs is extremely important to us, and it’s wonderful to know this was reflected in the service you received.

We’re also glad to hear that the work was carried out so neatly, leaving minimal mess behind. Your feedback is greatly appreciated and will be shared with the team.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

The engineer came today to assess where…

The engineer came today to assess where rads boiler and pipework would be fitted. David was really efficient polite and really helpful with everything

18 december 2025
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for your kind words! We’re delighted to hear that David was efficient, polite, and helpful during his visit. We’ll be sure to pass your feedback on to him – it’s always great to know our team is making a positive impact.

Sarah ~ GSL Aftercare Team

Beoordeeld met 4 van de 5 sterren

Almost 5

The survey got the panel calculations wrong but this was fixed by the guys who put the panels up, and the panel guys were excellent. The electricians that wired the equipment were also excellent. The kit itself feels excellent. The scaffolders were not so good. One postponement was described to me by the main contractor as “What can I tell you? They just didn’t turn up”. They also caused damage to a flat roof that the scaffold sat on. The controls are via an app on your phone and it looks good. However, the user manual lacks detail and has some complicated redundancy/duplications in it that cause issues. Optimising overnight, cheap electric battery charging with EV charging took me about over a week to figure out a work around for, that shouldn’t really be necessary and upsets the “virgo” in me. That said, even though I couldn’t get the access to the controls I wanted, the after sales care is fast and friendly and hopefully future app updates will improve the particular issue I had.

1 december 2025
Logo Grant Store Ltd (GSL) - Solar & ASHP Installer

Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for taking the time to share such detailed feedback. We’re pleased to hear that the panel installation team and electricians delivered excellent work, and that you’re happy with the kit itself and the app’s design.

We sincerely apologise for the issues you experienced with the scaffolding team, including the missed appointment and damage caused to your roof. This is certainly not the standard we expect, and we’ll be addressing it with the contractor to prevent it happening in the future.

It’s great to hear that our after-sales team was able to assist you quickly and positively. We’re committed to making your experience as smooth as possible and truly value feedback like yours that helps us improve.

Thank you again for your detailed review and for giving us the opportunity to improve.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

We had a recent survey from gsl

We had a recent survey from gsl, communication was great throughout, the engineer david Joyce was polite courteous and very knowledgeable.

12 december 2025
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you very much for taking the time to leave such positive feedback. We’re delighted to hear that communication was great throughout your survey and that David Joyce provided a polite, courteous, and knowledgeable service. I will be sure to pass on your kind comments to him and the wider team. We really appreciate your support.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren
Logo Grant Store Ltd (GSL) - Solar & ASHP Installer

Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

We’re glad to hear that our workmen were efficient and courteous, and we appreciate you taking the time to leave a review.

Thank you again for choosing us, and we wish you all the best going forward.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

A good experience and a positive outcome.

The whole process was professional and well executed for a good result.
The office staff were very helpful.
The roofers did a good job of fitting the solar panels, despite the poor weather.
The electricians also did a good, courteous job.
Only 2 comments.
I was surprised the planning was for 2 rows of 6 panels. The roofers thought the same and went for 3 rows of 5, 5 and 2.
There was inconsistency on where the inverter would go. The proposal said inside and the plan for the electrician said outside. It went outside.
But those 2 comments aside, it was a good experience.

11 december 2025
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you very much for taking the time to leave such a detailed and balanced review.

We’re delighted to hear that you found the whole process professional and well executed, and that both our office team and on-site teams made a positive impression. It’s especially appreciated that you recognised the efforts of the roofers working in poor weather and the electricians for their courteous and quality workmanship.

Thank you also for highlighting the two points regarding the panel layout and the inverter location. We value this feedback, as it helps us improve consistency and clarity between proposals, planning, and on-site delivery. Your comments will be shared with the relevant teams to help refine our processes.

Overall, we’re very pleased that, aside from these points, your experience was a good one. Thank you again for choosing us and for your thoughtful feedback.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

Excellent service

Excellent service, I love my new heating system, they were really helpful with minimum disruption. Everyone was lovely, Grant and Reece from Cardiff were brilliant and the final surveyor, David Joyce was really helpful.

10 december 2025
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for your wonderful feedback! We're delighted that you’re enjoying your new heating system and that the installation was smooth with minimal disruption. It’s great to hear that Grant and Reece from Cardiff were brilliant, and that David Joyce was equally helpful during the final survey.

We truly appreciate your kind words and are always here if you need anything in the future.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

The service from start to finish was…

The service from start to finish was second to none. Chris came out after the installation of my new central heating being fitted. He is a nice bloke and very helpful.

10 december 2025
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for sharing your kind feedback! We’re delighted to hear that your experience from start to finish was second to none. It’s great to know that Chris made such a positive impression after your new central heating was installed — we’ll be sure to pass along your kind words to him.

We truly appreciate your review and are here should you need anything in the future.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

Met david joyie today for the…

Met david joyie today for the installation of radiators and boiler was realy nice and talked me through everything I needed to know would defo recomend just waiting for the next stage now thanks unfortunately northerneco have seesed trading so waste of time don't get the radiators and boiler now even though it's been extended to December

9 december 2025
Review zonder uitnodiging
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Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for sharing your experience! We're really pleased to hear that your visit with David went so well. It’s great to know he walked you through everything clearly and made the process comfortable for you.

We appreciate your recommendation and are glad you’re feeling confident as you move on to the next stage. If you need anything at all in the meantime, we’re here to help.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

Excellent from start to finish

Excellent from start to finish

9 december 2025
Logo Grant Store Ltd (GSL) - Solar & ASHP Installer

Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for sharing your experience! We’re delighted to hear that everything went smoothly and that you found the process excellent from start to finish. Your feedback means a lot to us and encourages our team to keep delivering the best possible service.

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

Brilliant service from Dave and Matt

Brilliant service from David Joyce and Matt Cunningham today. Pleasant, friendly and respectful. Cheers lads!

9 december 2025
Review zonder uitnodiging
Logo Grant Store Ltd (GSL) - Solar & ASHP Installer

Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for your kind words! We’re thrilled to hear that David and Matt provided a pleasant, friendly, and respectful service. We’ll be
sure to pass on your cheers to them—they’ll be delighted!

Sarah ~ GSL Aftercare Team

Beoordeeld met 5 van de 5 sterren

GSL fitted several solar panels & a…

GSL fitted several solar panels & a battery. The whole experience from start to finish was excellent. Would definitely recommend

1 december 2025
Logo Grant Store Ltd (GSL) - Solar & ASHP Installer

Antwoord van Grant Store Ltd (GSL) - Solar & ASHP Installer

Thank you for your fantastic feedback! We’re delighted to hear that your solar panel and battery installation went smoothly from start to finish. We truly appreciate your recommendation and look forward to helping you again in the future!

Sarah ~ GSL Aftercare Team

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