UK energy calculator
Heat Pump Cost & Grant Calculator UK 2026
Estimate gross installation cost and model current Boiler Upgrade Scheme support separately for eligible England and Wales properties.
Estimated cost after modelled grant
£3,500 – £12,500Typical gross cost £15,000 · Modelled grant £7,500 · Typical net cost £7,500.
The Boiler Upgrade Scheme is for eligible properties in England and Wales. Standard grants are currently £7,500 for air-to-water and ground-source heat pumps and £2,500 for air-to-air systems. Until March 2027, some eligible off-gas oil/LPG properties can receive £9,000. This calculator does not determine legal eligibility.
Cost benchmarks: Checkatrade 2026 heat-pump guides. Grant values and scheme area: GOV.UK, checked September 2026. See cost-after-grant examples → · Full guide → · Sources →