What a heat pump really costs after the grant
This is the question that matters most — and the one that gets the most confusing answers online. Here's an honest breakdown. The only way to get a real price for your home is a survey and a heat-loss calculation, but the ranges below show the ballpark.
Illustrative price ranges
| System & home size | Typical total cost | After £7,500 grant |
|---|---|---|
| Air source — small home | £8,000 – £11,000 | £500 – £3,500 |
| Air source — average home | £11,000 – £14,000 | £3,500 – £6,500 |
| Air source — large home | £14,000 – £18,000 | £6,500 – £10,500 |
| Ground source | £18,000 – £30,000 | £10,500 – £22,500 |
Illustrative examples only — these are typical market ranges to show the ballpark, not quotes, prices we set, or figures from named customers. Your actual price depends entirely on your property and your installer's survey.
Why the wide range? Heat pumps are sized to your home's heat loss, which depends on insulation, number of rooms, ceiling heights, and how warm you like things. A well-insulated 3-bed semi might need a smaller, cheaper system than a draughty 2-bed Victorian terrace.
What's included in the price
- The heat pump unit (the outdoor box)
- A hot water cylinder (most homes need one)
- Pipework, controls and electrical work
- Installation labour
- MCS certification (required for the grant)
- A warranty on most systems (commonly 5 years or more)
What can cost extra
- Larger radiators, if some of your current ones are too small
- Underfloor heating (optional — not required)
- Removal of the old boiler and tanks
- Upgrading an old electrical consumer unit
What does it cost to run?
Want a real price for your home?
Do our free 2-minute eligibility check and we'll connect you with a vetted MCS-certified installer who can survey your home and give you an actual quote — no obligation.
Check my eligibility →Keep reading
How the Boiler Upgrade Scheme works
What you can get and how the grant is claimed for you.
Who qualifies for the grant?
The three tests, the scrapped EPC rule, and the £9,000 off-gas uplift.
How heat pumps work — and the myths
Cold weather, radiators, noise and planning: the honest answers.
Sources: grant amounts per Ofgem — Boiler Upgrade Scheme and gov.uk; the £9,000 off-gas oil/LPG uplift applies 21 July 2026–31 March 2027. Cost ranges are illustrative typical-market figures for general guidance, not quotes or prices set by us. Always get a survey and confirm current grant details via gov.uk or an MCS-certified installer before making decisions. UK Heat Pump Grant is a service of GrafterUK Ltd (Co. No. 17303977) and is not affiliated with the UK Government; this page is guidance only.