50 heat pump installer listings have a business address in London, out of 114 across Greater London. 37 of them (74%) are recorded as registered for the Boiler Upgrade Scheme. Confirm current status before relying on a grant. Air source appears on every record; exhaust air and ground source appear on some. Confirm with each firm.
Grants in England
£9,000 for eligible off-gas-grid oil/LPG replacements with air-to-water or ground-source heat pumps until 31 March 2027.
On a lower income? The Warm Homes: Local Grant is council-run and fully funded for homes rated EPC D to G where household income is usually £36,000 or less.
All 114 installers in Greater London · All counties · Boiler Upgrade Scheme guide