Leicester
Jonstar Sustainable Technologies Ltd
Jonstar Sustainable Technologies delivers solar, EV charging, lighting and heating solutions, integrating design, installation & maintenance for sustainable power.
Jonstar Sustainable Technologies Ltd is a UK-based renewable energy and sustainability company specializing in solar PV installations, battery storage, EV charging, and energy efficiency solutions. With a strong commitment to sustainability and innovation, the company delivers tailored renewable systems that help households, businesses, and communities cut costs, reduce carbon emissions, and move toward energy independence.
Founded with the mission of providing cleaner and smarter energy alternatives, Jonstar Sustainable Technologies Ltd combines technical expertise with customer-focused service to ensure every project meets the highest standards of safety, efficiency, and long-term performance. Their vision is to play a leading role in the UK’s transition to net zero by offering future-ready renewable technologies that benefit both customers and the environment.
With a team of skilled engineers and energy specialists, the company offers end-to-end solutions from consultation and design through to installation and aftercare. Known for professionalism, transparency, and reliable customer support, Jonstar has built a strong reputation across the renewable energy sector.
Jonstar Sustainable Technologies Ltd partners with trusted renewable energy manufacturers to ensure reliability and performance:
Jonstar Sustainable Technologies Ltd operates with or in line with the following certifications:
Jonstar Sustainable Technologies Ltd provides warranties aligned with UK industry practices:
English
Several years of expertise in the renewable energy and sustainability sector
Dozens of residential and commercial projects successfully delivered across the UK
I learnt of Jonstar through a visit to an NEC Exhibition, from which Phil visited our home and quoted for a 17 solar panel installation with all necessary control equipment etc. We agreed the detail and all queries were answered. We placed the order and the installation started promptly once materials were on site. The work was carried out quickly, efficiently and with full cooperation with ourselves. Phil and Ben coordinated the work and came in to commission the system. The only glitch we had was the supply of the immersion heater controller which was delayed from the manufacturer. The system worked from day one and the missing part fitted as soon as it became available. We are one year on from commissioning and all running well and we are even getting money from the grid for the power we don't use whilst saving on the ever increasing price of energy by producing some of our energy need.
Fantastic service throughout the entire process. Was involved in each step of the design with clear and logical reasoning behind the what's and why's? Any industry jargon was explained and by the time we had agreed on the system I knew exactly what I was getting and how it was all going to work. Installation day was smooth and incredibly quick and I was kept fully informed at every stage. It;'s been quite a few years since I have had such outstanding service. I would throughly recommend Jonstar to anyone and would like to particularly thank Phil for his help, assistance and knowledge. Top marks guys
Cannot recommend highly enough, Advised me via phone & remotely helped me organise my panel layout & get 3 of my SolarEdge Optimisers working correctly again. Professional, helpful advice given. I'll definitely be using these guys for any upgrades or to recommend to friends for installations
Jonstar Energy Brokers Ltd was incorporated on 13 April 2015 and is currently active.
Yes — it operates as a registered company in the UK (Company Number 09538780). GOV.UK Company Information+2Endole+2 Note: Their site (jstarenergy.co.uk) presents themselves as offering renewable energy systems, solar PV, servicing, EV charging, etc.
They offer renewable energy systems such as Solar PV, lighting & heating solutions, system servicing & maintenance, and EV charging points.
