UK energy calculator

Heat Pump Cost & Grant Calculator

Estimate installation costs and model the current Boiler Upgrade Scheme contribution for eligible England and Wales properties.

Heat pump type

Property location

Assume BUS eligibility?

Existing heating fuel

Off the mains gas grid?

Upgrade around 10 radiators?

Estimated cost after modelled grant

£3,500 – £12,500

Typical 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 sources →