Cooling-only air conditioning isn't grant-funded in the UK — but heat pumps, which heat and (in some cases) cool your home, often are. Here's what's available in 2026, in plain English.
Can I get a grant for air conditioning?
Not for cooling-only units. The one exception is the new £2,500 Boiler Upgrade Scheme grant for air-to-air heat pumps (which can cool as well as heat). It became law in April 2026, but as of mid-2026 it isn't yet practically claimable — the certification needed by installers is still being finalised. We'll update this page the moment it goes live.
England & Wales
Boiler Upgrade Scheme (BUS)
Open £7,500 (air/ground source) · £2,500 (air-to-air) · £5,000 (biomass)
Property owners in England & Wales replacing a fossil-fuel or standard electric heating system (you cannot already have a heat pump). An MCS-certified installer is required and there is one grant per property. The old EPC requirement was removed in April 2026.
How to apply → Northern Ireland
Northern Ireland support (NISEP)
Open Varies (NISEP, availability patchy)
Northern Ireland has no direct Boiler Upgrade Scheme equivalent. Support is via the Northern Ireland Sustainable Energy Programme (NISEP), delivered by regional scheme managers with income thresholds and waiting lists.
How to apply → Up to £15,000 in home energy improvements
Income-tested (household income around £20,000 or below, or on qualifying benefits). Property must be in Wales, EPC E or below (D for households with an eligible health condition). Owner-occupied or privately rented with landlord permission.
How to apply → England
Warm Homes Plan
Open £15 billion programme (2025–2030)
An umbrella government programme (launched January 2026) rather than a single grant. It includes fully-funded upgrades for low-income households, the Boiler Upgrade Scheme, a new Warm Homes Fund offering low/zero-interest loans, and the Warm Homes: Local Grant delivered by councils.
How to apply → Scotland
Home Energy Scotland Grant & Loan
Open Up to £7,500 grant + up to £7,500 interest-free loan (+£1,500 rural uplift)
Open to all owner-occupied households in Scotland (no income test for the core grant/loan). Rural and island homes qualify for an extra £1,500.
How to apply → UK-wide
Energy Company Obligation (ECO4)
Winding down Fully funded (supplier-funded) insulation & heating measures
Low-income / fuel-poor households on qualifying benefits, in less efficient homes (EPC D–G for owners; E–G for private tenants). Also reachable via the local authority 'LA Flex' route. Funded by energy suppliers, not government.
How to apply → Kept here for reference — these are no longer accepting new applications.
UK-wide
Great British Insulation Scheme (GBIS)
Closed Free / subsidised insulation (scheme closed)
(Historic) Least energy-efficient homes (broadly EPC D–G), with a share reserved for low-income households.
How to apply → England
Home Upgrade Grant (HUG)
Closed Whole-house upgrades (scheme closed)
(Historic) Low-income, off-gas-grid homes in England, delivered via local authorities.
How to apply →