Home energy upgrade
Air Source Heat Pump
A low-carbon heating system that extracts heat from outdoor air to warm your home and water — eligible for the £7,500 Boiler Upgrade Scheme grant.
Step by step
How Air Source Heat Pump installation works
-
A certified surveyor assesses your home, insulation, and existing radiator sizing.
-
An MCS-certified installer designs the system and applies for the BUS grant voucher on your behalf.
-
The outdoor unit and internal components (cylinder, controls) are installed — typically in one or two days.
-
The system is commissioned, tested, and handed over with an MCS certificate and manufacturer warranty.
-
Your installer redeems the grant voucher; you pay only the balance after the £7,500 deduction.
Why it's worth it
Benefits of Air Source Heat Pump
- Eligible for up to £7,500 off via the Boiler Upgrade Scheme
- Significantly lower carbon emissions than a gas or oil boiler
- Can provide both space heating and hot water from a single system
- Works efficiently even in temperatures as low as −20°C
- MCS certification required — guarantees workmanship and equipment standards
- May reduce energy bills when replacing an oil or LPG boiler
What to budget
Typical cost
Typically £7,000–£13,000 installed before grants
Costs vary significantly depending on property size, existing systems, and installer. A surveyor's assessment will give you an accurate figure. Available grants (listed below) can substantially reduce the net cost.
Is this right for you?
Ideal for
- Homes replacing an oil, LPG, or ageing gas boiler
- Properties with reasonable insulation (EPC D or better, ideally)
- Detached or semi-detached houses with outdoor space for the unit
- Homeowners in England, Scotland, or Wales seeking grant funding
Financial support
Grants you may qualify for
Boiler Upgrade Scheme (BUS)
£7,500 / £5,000Up to £7,500 off an air source or ground source heat pump (£5,000 for biomass). Paid directly to your MCS-certified installer. England & Wales, no income cap.
0% VAT on Energy-Saving Materials
0% VATSolar panels, heat pumps, insulation, and other qualifying energy-saving measures are zero-rated for VAT — saving 20% on supply and installation costs UK-wide.
Home Energy Scotland Grant & Loan
ScotlandHomeowners in Scotland may qualify for grants and interest-free loans toward heat pumps and other renewable heating systems via Home Energy Scotland.
Ready to go?
Find MCS-certified Air Source Heat Pump installers near you
Compare MCS-certified specialists in your area, check their credentials, and book a free assessment worth £380.
