Aerial view of a solar PV installation by Solwat Green Energy
    Intelligent Energy Solutions

    Heat Pump & Solar Installers in Hampshire & Dorset

    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

    Solwat Green Energy

    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
    Two air source heat pumps installed by Solwat outside a home
    Twin air source heat pumps installed by Solwat, with insulated pipework running neatly into the property.

    Our Work

    Recent installations

    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.

    Aerial view of a new build home with in-roof solar panels

    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
    Solwat engineer commissioning a Vaillant air source heat pump with a laptop

    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 on frames beside a commercial building

    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 panels installed on a tiled roof

    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 heat pump collector pipe laid in a long trench

    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 with buffer vessels, pumps and a plate heat exchanger

    Commercial plant room

    Buffer vessels, expansion vessels, circulation pumps and a plate heat exchanger installed in a commercial plant room.

    Solar thermal

    Reviews

    What our customers say

    Verified reviews from homeowners we've worked for, published on Checkatrade.

    10/10
    Professional knowledgeable and respectful
    “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

    10/10
    Installing a solar battery to an existing PV system
    “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

    9/10
    Solar Thermal Diagnosis
    “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

    10/10
    Installation of air source heat pump
    “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

    10/10
    Solar thermal installation
    “Great company. Communication was excellent and installation was professional. Highly recommend.”

    Solar thermal installation

    SO32 (Bishop's Waltham area), July 2024

    Why Renewables

    Why switch to renewables?

    Learn more about grants and the benefits of renewables
    • Hassle-free heating with very low maintenance
    • A heat pump gives three to four units of heat for every unit of electricity it uses
    • No combustion on site – no gas or oil burnt in your home
    • Up to £7,500 towards an air or ground source heat pump through the Boiler Upgrade Scheme
    • 0% VAT on installed solar panels, heat pumps and home batteries until 31 March 2027
    • Get paid for the solar electricity you export through the Smart Export Guarantee
    • An energy-efficient home can improve its EPC rating and appeal to buyers
    • Renewable systems need little maintenance and have a long working life

    Sources: Energy Saving Trust; GOV.UK – Boiler Upgrade Scheme; GOV.UK – VAT Notice 708/6; Ofgem – Smart Export Guarantee.

    Accredited & certified

    We're an MCS-certified installer and a member of the Renewable Energy Consumer Code, so eligible customers can claim the Boiler Upgrade Scheme grant and Smart Export Guarantee payments.

    MCS certified installer NAP-71585TrustMarkNAPITRenewable Energy Consumer Code (RECC) memberIWA approved installerF-Gas RegisterAPHC – Association of Plumbing & Heating Contractors

    Where we work

    Installers across Hampshire, Dorset & the South Coast

    Our engineers are based in Lymington, so we can survey, install and look after systems right across the region.

    Lymington & the New Forest

    Our home patch – we're based at Lea Green Farm on Christchurch Road.

    Christchurch, Bournemouth & Poole

    Homes and new build developments across the BCP area.

    Southampton & Hampshire

    Retrofits and new builds throughout the county.

    Dorset & the South Coast

    Heat pump, solar and battery projects along the coast.

    Trusted Suppliers

    Vaillant logoDaikin logoLG logo

    Ready to get started?

    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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