Air source heat pumps extract renewable heat from outside air to warm your home and hot water — quiet, efficient, and eligible for the Boiler Upgrade Scheme grant.
An air source heat pump works like a refrigerator in reverse — extracting latent heat from the outside air, even at temperatures as low as -15°C, and concentrating it to heat your home and hot water via a refrigerant cycle.
For every unit of electricity used, a well-installed heat pump typically delivers 3–4 units of heat, making it one of the most efficient heating technologies available.
| Typical output | 5–16kW domestic units |
| Efficiency (COP) | 3.0–4.5 |
| Noise level | Approx. 42–58 dB (similar to a fridge) |
| BUS grant | £7,500 (£9,000 off-gas-grid from Jul 2026) |
| Install time | 2–4 days typical |
| Warranty | Up to 10 years |
| Lifespan | 20+ years with maintenance |
A grant, not a loan — paid directly to your installer, reducing your upfront cost.
Have a specific question about your property? Call us directly.
View all FAQsThe Boiler Upgrade Scheme currently offers £7,500 off the cost of an air source heat pump installation in England and Wales. From July 2026, an additional £1,500 uplift is available for off-gas-grid properties, taking the grant to £9,000 for eligible homes.
A typical domestic air source heat pump installation costs between £9,000 and £14,000 before any grant, depending on property size and existing heating system. After the £7,500 Boiler Upgrade Scheme grant, most homeowners pay between £1,500 and £6,500.
Yes, with proper sizing and sometimes additional insulation or larger radiators. We carry out a full heat loss survey before quoting to ensure the system is correctly specified for your property's age and insulation level.
Running costs depend on electricity prices and the heat pump's efficiency (COP), but well-installed systems typically cost similar to or less than gas heating to run, especially when paired with solar PV and battery storage.
Boiler Upgrade Scheme funding is allocated annually — get your free survey booked today.