London has the UK's largest pool of MCS-certified installers, covering every borough — worth getting three quotes, as prices and lead times vary widely across the capital.
£7.5k–£9k
Before you get quotes, check what grant you qualify for — most Greater London homes get £7,500, off-grid oil/LPG homes £9,000 from 21 July 2026. 60-second calculator →
Croydon-based firm describing itself as MCS-certified for air and ground source heat pumps and solar PV, designing and installing every system in-house.
Air source heat pumpsGround source heat pumpsSolar PV
Certification claims are the installer's own — verify on the official MCS register. From the installer's public website, last checked 2026-07-02.
Describes itself as one of London's leading MCS-certified air source heat pump installers, EDF-owned with over 20 years' experience.
Air source heat pumpsBUS grant handling
Certification claims are the installer's own — verify on the official MCS register. From the installer's public website, last checked 2026-07-02.
States it is MCS certified to design and install air source heat pumps across West London, alongside heating and ventilation services.
Air source heat pumpsVentilation
Certification claims are the installer's own — verify on the official MCS register. From the installer's public website, last checked 2026-07-02.
Bromley-based installer describing itself as MCS-certified, specialising in air source heat pump design and installation with underfloor heating.
Air source heat pumpsUnderfloor heating
Certification claims are the installer's own — verify on the official MCS register. From the installer's public website, last checked 2026-07-02.
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