
MCS-certified engineers designing and installing air source and ground source heat pumps, solar PV, battery storage, solar thermal and EV chargers for homes, new builds and businesses across Hampshire, Dorset and the South Coast.
22+
Years Experience
MCS
Certified
Accredited
Engineers
About Solwat
Backed by more than 22 years of industry experience, our accredited engineers are trusted specialists in renewable energy. We deliver end-to-end solutions, from design and installation to servicing and optimisation of heat pumps and solar technologies, for residential and commercial properties.
We are dedicated to providing impartial advice tailored towards each of our client's needs and offer an array of solutions that will optimise efficiency while minimising costs.
Learn more about us
Our Services
We are dedicated to providing impartial advice tailored towards each of our client's needs and offer an array of solutions that will optimise efficiency while minimising costs. We work on existing homes and new build developments.
This efficient and sustainable solution offers a more cost-effective way to heat your home.
Learn moreTo save money on your electricity bills and increase your grid independence consider investing in Solar PV.
Learn moreInstall electric charging points at your home or business, for convenience, lower costs & reduced emissions.
Learn moreInstalling battery storage at home enables you to store electricity, reduce energy costs and be more energy efficient.
Learn moreSolar Thermal Panels harvest energy from the sun to heat water for storage in your hot water cylinder or thermal store.
Learn moreEnergy-efficient air conditioning that keeps you cool in summer and provides low-cost heating in winter.
Learn moreOur Work
A selection of heat pump, solar PV and solar thermal systems designed and installed by our own engineers, from family homes to commercial plant rooms.

Solar on a new build
Solar panels set into the roof of a new build home, sitting flush alongside the roof windows.
New build developments
Commissioning a Vaillant heat pump
One of our engineers commissioning a Vaillant air source heat pump, checking its settings on a laptop before handover.
Heat pumps
Solar thermal collectors
Solar thermal collectors on angled frames beside a commercial building, heating water for the site's hot water system.
Solar thermal
All-black solar PV
All-black solar panels mounted on rails on a tiled roof, connected to an inverter inside the property.
Solar panels
Ground source collector loop
Coiled collector pipe laid along a deep trench, ready to be backfilled so it can gather heat from the ground for a ground source heat pump.
Ground source heat pumps
Commercial plant room
Buffer vessels, expansion vessels, circulation pumps and a plate heat exchanger installed in a commercial plant room.
Solar thermalReviews
Verified reviews from homeowners we've worked for, published on Checkatrade.
“Wow what lovely engineers who came to install my new Air source heat pump, they were very respectful, clean and tidy…”
Air source heat pump installation
BH11 (Bournemouth), August 2025
“James and Dan were friendly, knowledgable and courteous. The work was expedited in an efficient manner…”
Battery added to existing solar PV
SO30 (Hedge End area, near Southampton), October 2024
“James and Dan have been helpful throughout. We had several telephone conversations and then an onsite meeting…”
Solar thermal diagnosis
SO41 (Lymington area), August 2024
“We are so delighted with Solwat Green Energy's efficient installation of our heat pump, that we have asked them to return…”
Air source heat pump installation
BH24 (Ringwood), July 2024
“Great company. Communication was excellent and installation was professional. Highly recommend.”
Solar thermal installation
SO32 (Bishop's Waltham area), July 2024
Sources: Energy Saving Trust; GOV.UK – Boiler Upgrade Scheme; GOV.UK – VAT Notice 708/6; Ofgem – Smart Export Guarantee.
Where we work
Our engineers are based in Lymington, so we can survey, install and look after systems right across the region.
Our home patch – we're based at Lea Green Farm on Christchurch Road.
Homes and new build developments across the BCP area.
Trusted Suppliers



Get in touch for a free, no-obligation quote. Our team will assess your property and recommend the best solution.
Solwat Green Energy
Lea Green Farm, Christchurch Road, Lymington, Hampshire SO41 0LA
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