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Claim this listing4.9
37 Google reviews
1–2 days
Typical install time
£7,500
BUS grant amount
JEM Energy Ltd is an MCS certified air source installer based in Hampshire. They are registered with the Boiler Upgrade Scheme, meaning they can help you claim up to £7,500 towards your installation.
Based in Hampshire, GU14 7QH
Areas served:
4.9
37 Google reviews
Based on verified Google reviews
kerry bedford
Jem energy completed my solar and battery installation and organised my heat pump installation 20 months ago. A very professional company and tge as expected the job was well done. They have recently added to my array of panels. Again they were methodical, tidy and considerate in their work. Thanks all.
Michael Bradley
Jem Energy fitted my Solar and Battery a couple of years ago and I have to say that I was very impressed by the quality of their work and customer service. I recently had an issue with my Battery which Jem Energy immeditely fixed. Technology sometimes fails, it's what happens at these times that counts and I must say Jem Energy's customer service has been outstanding and appreciated.
Leon B
I recently had solar panels and a battery system installed by Jem Energy. I was really pleased with the experience both during the order process and the fitting. The team of four who installed everything were friendly and professional, especially Ollie who also returned on the second day to complete the setup. No hesitation at all in recommending.
Julian Rowley
Jem did a great job installing Solar PV and battery. Was super easy to get a quotation and Josh clearly knew his products. Price-wise the quote was reasonable and certainly was not massively over inflated like some chancers currently in the market. Originally I opted to wait for an inverter to come into stock but this was delayed by the manufacturer. I changed my mind which was no problem and got an installation date booked. The install was quick and tidy and done in 1 day with Dan leading the roofing team and Olly and his apprentice on the electrics. There were a few minor niggles which were rectified with no quibbles within 48 hours. Scaffolding came down promptly after the install. Bulk of the paperwork including the all important MCS and building regs certificates arrived quickly and then DNO approval and the electrical installation certificate arrived within 4 weeks. All of my post-install questions were quickly answered by James (apologies for probably being annoying!). The system is working brilliantly, our grid usage has plummeted and we're getting a bit back on export. Wouldn't hesitate to recommend them to anyone wanting Solar PV and batteries 👌🏻
Asif Hussain
We are building a new house in Chalfont St. Peter and from the outset knew that renewables were important to us. For each technology, i judged the merits on the following criteria: 1. Capital outlay, return on Investment and payback period 2. Proven technology 3. Aesthetics 4. Supplier knowledge – from sales to installers 5. The guarantee, lifespan and running costs 6. Communication/co-ordination and flexibility with on-site team. I was really impressed with the collective JEM team, from sales to completing installation. The team were all super knowledgeable. My main contractor and my project manager were also very impressed with the team and my main contractor mentioned “… in all the renewables he has encountered, the efficiency and return of the thermal hot water system was certainly the best he has seen… “. Thank you again and highly recommended.
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We are MCS‑certified and registered with an approved consumer protection/competent person scheme, which is essential for quality assurance and to access grants like the Boiler Upgrade Scheme (BUS).
We carry out a detailed home assessment, including property type, insulation levels, existing heating system and available outdoor space, to confirm whether a heat pump is a good fit.
We design the system using a heat‑loss calculation for your home, then match the correct kW size and model (for example, air‑source vs ground‑source) so it runs efficiently and reliably.
Our fixed quote clearly lists the heat pump, cylinder, controls, labour, scaffolding (if needed), electrical work and any radiator or pipework upgrades, so you know exactly what you’re paying for.
Yes, as an MCS installer we can confirm your eligibility, apply for the BUS grant (worth up to £7,500) on your behalf and deduct it directly from your quote.
A typical air‑source heat pump installation takes around 2–5 days, and we’ll agree locations for the indoor and outdoor units, manage any planning considerations and keep you informed each day.
After the heat‑loss survey, we’ll advise if any radiators, pipework, electrics or hot‑water cylinder need upgrading so the system can run efficiently at lower flow temperatures.
Modern heat pumps are designed to be quiet and must meet UK noise regulations; we’ll position the unit to minimise any impact on you and your neighbours and comply with local planning rules.
You’ll get manufacturer warranties on the heat pump plus our workmanship guarantee, and we offer ongoing servicing and support to keep your system performing at its best.
We’ll estimate your likely annual running costs and potential savings based on your current fuel type, insulation level and tariffs, using real‑world performance data rather than lab figures.
Boiler Upgrade Scheme
Up to £7,500
off your heat pump installation
This installer handles the full BUS grant application — deducted directly from your quote. No upfront payment needed for the grant amount.
Scheme open until 2028 — limited funding available
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