Home › Heat pump grants › Cornwall
Independent · Figures calibrated to the Ofgem 1 Jul – 30 Sep 2026 cap and current Boiler Upgrade Scheme rules · Updated July 2026
Replacing a heating oil with an air source heat pump in Cornwall costs about £3,500 for a typical 3-bed semi after the £9,000 grant (off-gas-grid uplift) — with a payback of roughly 5.5 years on a heat-pump tariff.
| Cornwall · Heating oil home — key numbers (2026) | |
|---|---|
| Grant available | £9,000 (off-gas-grid uplift) |
| Scheme | Boiler Upgrade Scheme (England & Wales) |
| Typical install (3-bed semi, before grant) | £12,500 |
| Net cost after grant | £3,500 |
| Typical saving vs heating oil (per year) | £631 |
| Payback (3-bed semi, heat-pump tariff) | 5.5 years |
| VAT on installation | 0% |
In Cornwall, many homes rely on heating oil to keep their properties warm and cozy. As one of the most rural counties in England, a high proportion of households are off the gas grid, making them ideal candidates for a heat pump upgrade.
With the Boiler Upgrade Scheme now available in England and Wales, including a generous uplift for off-gas-grid homes like yours, this is an option worth considering to explore the benefits of switching to an air source heat pump. Not only will you receive a substantial grant towards your installation costs, but you'll also enjoy the long-term financial savings that come with this efficient heating technology.
Payback period — heating oil home in Cornwall
—years
Install
After £9,000 grant
Saving / yr
They confirm your exact price and handle the grant paperwork — you never touch the money. No obligation.
Please enter a valid UK postcode and email, and tick the consent box.
Up to 2 MCS-certified installers covering Cornwall will be in touch within 48 hours with fixed quotes.
The numbers are worth reviewing for upgrading your heating system in Cornwall. From 21 July 2026 until 31 March 2027, homes like yours may qualify for a £9,000 grant through the Boiler Upgrade Scheme, plus an additional uplift specifically for off-gas-grid properties. This means you could potentially save up to £3,500 on your installation costs, making the switch to a heat pump more affordable and attractive.
Not only that, but with 0% VAT on installations and no income test required, you can make the change. This opportunity to improve your home's energy efficiency, reduce your carbon footprint, and enjoy significant long-term savings on your heating bills.