Greater London
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.
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 →
Coverage: London, Surrey & the South East
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.
Certification claims are the installer's own — verify on the official MCS register. From the installer's public website, last checked 2026-07-02.
Coverage: Greater London
Describes itself as one of London's leading MCS-certified air source heat pump installers, EDF-owned with over 20 years' experience.
Certification claims are the installer's own — verify on the official MCS register. From the installer's public website, last checked 2026-07-02.
Coverage: West London
States it is MCS certified to design and install air source heat pumps across West London, alongside heating and ventilation services.
Certification claims are the installer's own — verify on the official MCS register. From the installer's public website, last checked 2026-07-02.
Coverage: South London
Bromley-based installer describing itself as MCS-certified, specialising in air source heat pump design and installation with underfloor 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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