Heat pump installation cost
Average installed cost and what the grant takes off.
Average air source heat pump installation
About £13,300
MCS, certified installations in 2025
After the Boiler Upgrade Scheme grant
About £5,800
Average minus the £7,500 grant (England and Wales)
An average, not a quote: individual homes can cost much more or less. Installation costs are kept separate from yearly running costs.
Costs that depend on your home
We don't have reliable published ranges for these, so ask for each as a separate line on your quote:
Ground source heat pump
Usually much more than air source because of the ground loop or borehole. Quote required.
Radiator upgrades
Only the rooms that need more output at lower temperatures. Quote required.
Hot-water cylinder
Needed in most homes that have a combi boiler now. Quote required.
Electrical work
Sometimes a consumer unit upgrade or network notification. Quote required.
Grants and quotes
- • Air source heat pump (air-to-water): £7,500 from the Boiler Upgrade Scheme (England and Wales)
- • Ground or water source heat pump: £7,500 from the Boiler Upgrade Scheme (England and Wales)
- • Air-to-air heat pump: £2,500 from the Boiler Upgrade Scheme (England and Wales)
- • Biomass boiler: £5,000 from the Boiler Upgrade Scheme (England and Wales)
Scotland has its own grant and loan, and Northern Ireland has different support: see the support finder. Your installer applies for the Boiler Upgrade Scheme grant.