BUS Grant Eligibility Checker

BUS grant eligibility at a glance

The Boiler Upgrade Scheme pays £7,500 toward an air source or ground source heat pump install. Five core conditions decide whether a property qualifies:

• The property is in England or Wales (Scotland uses the HES loan scheme instead).
• You’re the owner-occupier, owner of a private rental, or a small non-domestic property owner.
• You’re replacing a fossil-fuel heating system (gas, oil or LPG) — or direct electric.
• A valid EPC with no outstanding loft or cavity wall insulation recommendations.
• The install is carried out by an MCS-certified installer.

Common reasons applications fail

• Outstanding EPC recommendations for loft or cavity wall insulation.
• The property is a new build (with the narrow exception of self-builds).
• The home is already on a district or communal heat network.
• The chosen installer is not MCS-certified at the time of application.
• The system exceeds 45 kW capacity.

What happens after you qualify

You don’t apply for the grant directly. Your MCS installer submits the application on your behalf using your EPC and property details, and the £7,500 is deducted from the quote before you pay. The BUS voucher is valid for three months from issue (six for shared ground loops), so line up the install before applying. For the full process, read our BUS grant guide, and if your EPC is out of date or has recommendations outstanding, see the EPC guide first.

Once eligibility is confirmed, use the savings estimator to see payback with the grant applied, then get MCS installer quotes.