Commercial & Domestic Renewable Energy Specialists

GSM have demonstrated a consistent ability to design optimal, site-specific solar PV systems that maximise performance while remaining sensitive to the operational and structural limitations of each building. Their team has engaged collaboratively with our supply chain of consultants — particularly on structural assessments — helping to expedite technical approvals and avoid unnecessary delays. Their early engagement with structural engineers and proactiveness in resolving loading queries has streamlined the delivery process considerably.

GSM Ltd have delivered our solar PV projects to a very high standard. They bring strong technical understanding, dependable project management, and a genuine interest in delivering wider value for our district

GSM Ltd has consistently demonstrated professionalism, technical competence and a genuine commitment to delivering successful outcomes. Their approach has given us confidence throughout the programme, and the combination of high-quality installations, robust health and safety management and effective communication has made them a valued delivery partner.

Excellent service from start to finish. After being repeatedly let down by other installers I was nervous but the GSM team delivered exactly what I needed when they said they would, quickly and efficiently. The entire Solar system was up and running in less than a day! Very pleased with the install.

We were given a competitive price
Conscientious friendly employees did an excellent job
Work completed within their time frame
Sales person Allan knew what he was talking about which is rare these days
We would highly recommend this competitive company

Working alongside GSM Ltd during the heating decarbonisation installation at Tewkesbury Council offices, I was particularly impressed with their effective mobile app /  mobile HSE portal. It provided real-time visibility of on-site safety compliance and ensured that any issues, including potential hazards or near misses were flagged and addressed without delay.

Their innovative approach to health and safety, combined with clear documentation and instant access to RAMS and certifications, set a high benchmark. GSM Ltd demonstrated a proactive safety culture throughout — the streamlined delivery of their documents greatly assisted my delivery as CDM Advisor.

We found GSM to be a very professional company, from the initial contact through to installation and handover. Everything was explained clearly and the work was completed in a timely manner. All members of the team involved were very friendly . We would certainly recommend GSM to others.

Fantastic service and installation, highly recommended

Positive experience. Polite and efficient.

GSM were very professional throughout the whole process. The workmen were extremely polite and tidy whilst on site. The solar panels are working very efficiently to supply our electricity needs ( even in this summer!). A slight issue was rectified to a very high standard. All queries have been dealt with quickly and efficiently. Would definitely recommend them.

Just had a large Solar and battery storage system installed. Quite a complex system with 23 panels spread across house and garage roof giving a 9.2kw capacity along with 23kw battery bank. Less than 3 months from initial contact to completion with the actual install commencing on the originally agreed date and finished in a week. Fantastic team, did an excellent job, very high quality of work, great attention to detail, polite and considerate. No cost surprises either, final amount was as per quote. Unlike many others their terms of business was NO Deposit, first payment once equipment delivered, balance after it was all working.

Would have no hesitation in recommending them.