Heat Pump Installation Costs in 2026: The Real Numbers

Heat pumps are now the default replacement for gas boilers in UK government policy, but the question most homeowners ask first is always the same: how much does it actually cost? We have gathered real-world pricing data from installers across the UK to give you an honest breakdown of heat pump costs in 2026.

Air Source Heat Pump Costs

An air source heat pump (ASHP) is the most common type installed in UK homes. It extracts heat from the outside air and uses it to warm your home and hot water, working efficiently even when temperatures drop below freezing.

In 2026, a typical ASHP installation costs between £8,000 and £15,000 before any grants are applied. For a standard three-bedroom semi-detached house, most installers are quoting between £10,000 and £13,000 after survey.

What Is Included in the Price?

A complete heat pump installation typically includes:

• The heat pump unit: £3,000 to £7,000 depending on brand, output capacity, and model
• Installation labour: £2,000 to £4,000 for a standard two to four day installation
• Hot water cylinder: £500 to £1,500 if your existing cylinder needs replacing
• Pipework and fittings: £500 to £2,000 depending on the complexity of the run
• Controls and thermostat: £200 to £500
• Concrete base for the outdoor unit: £200 to £400

The biggest variable is whether your existing radiators are suitable. Heat pumps run at lower temperatures than gas boilers, so undersized radiators may need upgrading. If several radiators need replacing, this can add £1,500 to £3,000 to the total cost.

Ground Source Heat Pump Costs

Ground source heat pumps (GSHPs) are more efficient than air source models because ground temperatures remain more stable throughout the year. However, they require either boreholes or horizontal ground loops, which significantly increases the installation cost.

The average GSHP installation costs around £24,000 before the Boiler Upgrade Scheme grant, which brings it down to approximately £16,500. Ground source systems make most sense for larger properties with sufficient garden space and high heating demands.

The £7,500 Boiler Upgrade Scheme Grant

The single biggest factor reducing heat pump costs is the Boiler Upgrade Scheme (BUS). This government grant offers £7,500 towards the installation of an air source or ground source heat pump, with no income test required.

After applying the BUS grant, a typical ASHP installation costs between £3,000 and £7,500 out of pocket. For many three-bedroom homes, the net cost after the grant is comparable to a premium gas boiler installation.

The grant is applied directly by your MCS-certified installer, so you never need to pay the full price upfront. The scheme runs until March 2028.

Running Costs: Heat Pump vs Gas Boiler

Based on Ofgem’s latest tariff data, running a standard air source heat pump in a three-bedroom home costs approximately £995 to £1,125 per year. For comparison, a gas boiler in the same property typically costs £900 to £1,100 per year.

Running costs are now broadly comparable, and heat pumps come out ahead when paired with solar panels, a time-of-use tariff, or both. As gas prices trend upward and electricity increasingly comes from cheaper renewable sources, the running cost advantage is expected to shift further in favour of heat pumps over the coming years.

Is a Heat Pump Worth It?

After the BUS grant, a heat pump typically costs £3,000 to £7,500 out of pocket. It runs on electricity rather than gas, produces zero direct emissions, and qualifies for 0% VAT. Running costs are now comparable to gas, and the technology adds value to your property.

If your gas boiler is approaching the end of its life, a heat pump is now a genuinely competitive option. The combination of the £7,500 grant, zero VAT, and falling equipment costs makes 2026 one of the most affordable years to make the switch.