GSM Limited

Can't praise the team enough for the Solar / Battery install they completed for me in January 24. Had 16 panels, 5kW inverter and 9.5kW battery from GivEnergy installed. Team are knowledgeable and professional, throughout the installation everything was clean and tidy. The routing of all the cables is very smart, being mid terrace I didn't want to see the cable routes, the team was able to sort this out. Both the Electrician and Roofer were diligent, from making sure that the panels were centred on the property to the location of the inverter and battery to ensure the optimal position. Actively considering having the team back to replace the gas boiler with a heat pump.

Shane and his team are amazing and have done a very professional and excellent job. Have had a 8.5kw system with a battery pack installed and additional cabling to future proof it. They are always on hand to explain the workings of the system and make adjustments if required. Highly recommended

A 3.2kW system installed on a raised seam metal roof on a stone built out-building. Eight JA 400w black panels tilted at 30 degrees are wired as two strings on four panels. The Solax inverter and 5kWh battery are installed in the room below. A pre-existing underground 4mm SWA cable and a CAT5 Ethernet cable connect back to the house metering. Note the spacing between the two rows of panels and the use of half cell panels to minimise shading in the winter months. We were able to discuss with GSM ahead of the installation in order to provide a solution and equipment that met our requirements. All professionally installed easily within 2 days. There was a short wait for the triangular mounts. As a heavy user with an EV car and electric AGA, the battery storage on a sunny day provides most of the power used in the afternoon and into the night. We do not export very much but our off grid consumption is noticeably reduced. I can only award 4 1/2 stars as the handover document contains several errors which do not accurately reflect the equipment and system finally installed since the initial quotation. Could do better! G&J, home owners, Coleford

After being let down by another company, I contacted GSM for solar and battery storage installation at my home. From the outset, it was clear they were far superior. They responded quickly, conducted a site visit within days, and worked closely with me to find the most suitable and efficient solution. They handled all the paperwork, installed everything swiftly, and accommodated my schedule seamlessly. Every team member was polite, friendly, and a true credit to the company—special thanks to Richard and Allen. From start to finish, GSM has been outstanding, and we are now mostly off-grid. Thank you!

I recently had solar panels installed by GSM, and the experience was fantastic. The team was professional, efficient, and explained everything clearly. The installation was quick, and I’ve already started seeing savings on my energy bills. I’m really happy with the results and would highly recommend GSM to anyone looking to switch to solar!