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Heat Pump Guide

Air Source Heat Pump Costs UK

What UK homeowners pay for an air source heat pump in 2026 — and how the Boiler Upgrade Scheme changes the maths.

Air source heat pumps (ASHPs) are the most common type of heat pump installed in UK homes. This guide covers typical installed costs, what drives them up or down, and how to compare quotes.

Typical UK install prices

  • Standard 3-bed home: ~£8,000 – £12,000 installed before grant
  • Larger 4–5 bed home: ~£11,000 – £15,000 installed before grant
  • After the £7,500 Boiler Upgrade Scheme grant (England and Wales): often £2,000 – £7,000 out of pocket

Scotland has its own scheme via Home Energy Scotland with different terms.

What affects price

  • Heat loss / size of pump required (kW)
  • Radiator upgrades to run at lower flow temperatures
  • New hot water cylinder (most installs need one)
  • Pipework runs and electrical upgrades
  • Brand — common UK brands include Daikin, Mitsubishi Ecodan, Vaillant, Samsung, Worcester Bosch

Running costs

See Heat Pump Running Costs for a full breakdown.

Grants

See Heat Pump Grants UK for current schemes including the Boiler Upgrade Scheme.

Costs where you live

Prices and the grant available vary by nation and region:

Heat pump installers near you

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  • Free, no-obligation installer matching
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  • Transparent process — your enquiry is shared only with relevant installers

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Frequently asked questions

How much does an air source heat pump cost installed?
Installed costs typically range from £8,000 to £14,000 in 2026 before grants. After the Boiler Upgrade Scheme grant (£7,500 in England and Wales), many UK homeowners pay £2,000–£7,000 out of pocket.
Does the Boiler Upgrade Scheme cover all of it?
The Boiler Upgrade Scheme contributes £7,500 (England and Wales) towards an air source heat pump but isn't designed to cover the full cost. Eligibility is assessed by an MCS-certified installer.
Do I need new radiators?
Some properties need larger radiators or other emitter upgrades to run efficiently at lower flow temperatures. A heat loss survey will confirm what's needed.
How long does install take?
Most residential air source heat pump installs take 2–5 days on site after the survey and design stage.

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