Recommended installers / London & South East / Evo Heating & Renewables
Heat Geek Assured heat pump installers from Epsom, designing heat pumps, underfloor heating and boilers around each home since 2019.
Our recommended installer
Looking for a heat pump installer in Epsom, Surrey or South London? We recommend Evo Heating & Renewables. They are Heat Geek Assured heating engineers, approved to offer ZeroDisrupt Heat Geek installations.
Evo Heating & Renewables are based in Epsom and work across Surrey and South London. Piotr Wasilewski founded the business in 2019 as PWA Plumbing & Heating, and it has since become Evo Heating & Renewables, with Piotr and Richard carrying out the installs.
They take a design-first approach. Every heat pump starts with a room-by-room heat loss calculation, then the heat pump, radiators, underfloor heating, pipework, hot water and controls are designed as one complete system.
Reviews
Services
Heat pumps first, with underfloor heating and boilers, all designed around your home.
Vaillant, Viessmann and NIBE air source heat pumps, designed room by room by Heat Geek Assured engineers.
See the heat pumpsComfortable, low-temperature underfloor heating designed to work with a heat pump or a modern boiler.
Enquire nowVaillant ecoTEC plus boilers for homes where a heat pump isn't the right fit yet.
See the boilersThey help you check the £7,500 grant, or up to £9,000 for oil and LPG homes.
See the grantHeat pumps
Evo Heating & Renewables mainly install Vaillant aroTHERM plus heat pumps, and also fit the Viessmann Vitocal 250-A and NIBE air source heat pumps.
Vaillant
A popular air source heat pump for modern homes, offering quiet operation, strong performance and reliable heating.
Viessmann
A premium heat pump for efficient home heating and hot water.
NIBE
A flexible heat pump for homes moving to cleaner, low-carbon heating, with reliable year-round performance.
Exact models, sizes and guarantees are confirmed in your quote. See the funding options →
Heat pump funding in England
Evo Heating & Renewables help you understand whether your home qualifies for the Boiler Upgrade Scheme and how the grant fits into your quote.
Off the cost of an air source or ground source heat pump that replaces fossil fuel heating.
Extra for homes heated by oil or LPG with no mains gas, taking the grant to £9,000. Available until March 2027.
Heat pumps installed in homes are zero-rated for VAT until March 2027.
You don't need to be on benefits. Homeowners, landlords, second home owners and businesses can all qualify.
| System | Standard grant | Oil or LPG, no mains gas |
|---|---|---|
| Air source heat pump | £7,500 | £9,000 |
| Ground source heat pump | £7,500 | £9,000 |
| Air-to-air heat pump | £2,500 | £2,500 |
The extra £1,500 is available until March 2027. One grant per property. Limits apply: 45kWth for a single system and 70kWth for more than one heat pump.
Evo survey your home, work out its heat loss room by room and give you a written quote with the grant shown on it.
Your MCS certified installation is registered and the grant is applied for with Ofgem.
Ofgem contact you to confirm the installation. Reply to confirm.
The heat pump is installed and commissioned within 120 days of applying, and the grant is taken off what you pay.
Figures from GOV.UK (Boiler Upgrade Scheme), checked November 2026. Scotland has its own scheme through Home Energy Scotland.
Boilers
For homes where a heat pump isn't the right fit yet, Evo fit Vaillant ecoTEC plus boilers, with the same care over design, controls and flow temperatures.
Vaillant
A modern boiler with efficient heating and reliable hot water, backed by up to a 10 year guarantee.
Recent jobs
A few recent heat pump projects, taken from Evo Heating & Renewables' own case studies.
Epsom, Surrey
This 155m² detached bungalow had a 30-year-old oil boiler and an ageing gravity-fed system. A room-by-room heat loss of 7.01kW led to a Vaillant aroTHERM plus 7kW and a 300 litre uniSTOR cylinder, designed to run at 45°C with three radiators upsized.
Epsom, Surrey
Another installer had recommended a 12kW heat pump for this 71m² semi. Evo's heat loss calculation came to just 3.4kW, so they fitted a Vaillant aroTHERM plus 5kW with whole-house wet underfloor heating, running at a 38°C flow temperature.
Epsom, Surrey
The owners of this 160m² bungalow wanted a heat pump, but the survey showed the existing system wasn't ready. Evo first repaired a leaking boiler and sorted the underfloor heating, then fitted a Vaillant aroTHERM plus 7kW designed to run at 45°C.
Epsom
A new Vaillant aroTHERM plus air source heat pump for an Epsom home, designed and fitted by the Evo team.
Accreditations
Evo Heating & Renewables are Heat Geek Assured and approved for ZeroDisrupt installations, and fit heat pumps from these manufacturers.
Heat Geek Assured
ZeroDisrupt approved
Fits Vaillant heat pumps
Fits Viessmann heat pumps
Fits NIBE heat pumpsFAQs
Yes. Evo Heating & Renewables are Heat Geek Assured heating engineers, which means passing Heat Geek's exams in heat loss calculations and system design. They're also approved to offer ZeroDisrupt Heat Geek installations.
Evo Heating & Renewables are based in Epsom and cover Surrey and South London, including Ewell, Ashtead, Banstead, Sutton, Leatherhead, Kingston and Wimbledon. If you're not sure your area is covered, just ask in the form.
If your home qualifies, yes. The Boiler Upgrade Scheme gives £7,500 off an air source heat pump in England and Wales, or £9,000 if your home is heated by oil or LPG with no mains gas, until March 2027. Evo Heating & Renewables can help you check whether your home qualifies.
Yes. They design and install underfloor heating that works at low flow temperatures, so it pairs well with a heat pump or a modern boiler. On one Epsom project, whole-house wet underfloor heating runs at just 38°C.
Often not. On one Epsom semi, another installer had quoted a 12kW heat pump, but Evo's room-by-room heat loss calculation showed the home needed just 3.4kW, so a 5kW Vaillant aroTHERM plus was the right fit. Correct sizing helps keep running costs down.
Get in touch
Tell us a little about what you need and we will pass your details straight to Evo Heating & Renewables. They will be in touch to talk it through and arrange a survey.
We only recommend installers we know and work with. Evo Heating & Renewables carry out the survey, quote and installation, and your contract is with them.
Visit the Evo Heating & Renewables websiteMore recommended installers
See our other recommended installers in London and the South East, or browse every region.
Latest from Evo Heating & Renewables
Recent heat pump installs, straight from Evo's Google Business Profile.