Milton Keynes: £2,500 air-to-air heat pump grant

There is nothing unusual about Milton Keynes's heating profile: roughly 86.9% mains gas and 11.9% electric, with the rest on oil, LPG or solid fuel. That ordinariness does not change what the grant needs from you - a genuine replacement of your existing heating, done by an MCS-certified installer.

Mains gas heats 86.9% of the EPC-certified homes in Milton Keynes, against 11.9% on electric and 1.1% on oil, LPG or solid fuel, a typical year's heating across the property types we profile here costs about £521, band C is the commonest EPC rating here, covering 35% of rated homes and 99.2% of Milton Keynes's EPC certificates sit behind that fuel-mix split, so it is measured locally rather than estimated nationally and applied to you.

Everything about whether the grant pays a Milton Keynes homeowner turns on one choice: replacing the existing heating, or leaving it in place. We set out both routes with the same weight, not as a blanket promise either way.

Eligible - you replace your heating. If an air-to-air heat pump replaces a fossil-fuel or electric system (mains gas, oil, LPG, electric storage heaters or direct electric) and is fitted by an MCS-certified installer, the £2,500 applies, and the old system is decommissioned rather than run alongside the new one.

Not eligible - you keep your boiler. If you keep your existing heating and add cooling as a standalone unit, that cooling-only add-on does not qualify for the Boiler Upgrade Scheme grant, however it is marketed. Adding air conditioning while keeping your gas boiler is a private-pay job, carried out by an F-Gas / REFCOM-registered engineer rather than an MCS-certified one.

The grant itself is law and your eligibility is real, but no air-to-air product has reached the MCS Product Directory yet, so no installer can issue a Boiler Upgrade Scheme voucher today. Air-to-air enters MCS scheme scope on 5 December 2026, and vouchers follow once certified products list. Get quotes now, but treat the grant as pending rather than banked.

Grant rules as of August 2026 and subject to change, so always confirm the current terms on gov.uk before applying. This is a national scheme, so Milton Keynes Council plays no part in deciding whether you qualify. Planning permission for the outdoor unit in Milton Keynes, if you need it, is a different and entirely separate matter, covered on our planning pages.

MCS - the certification scheme for registered installers - is the quality standard your installer must hold for the grant to pay. It certifies the installer and the installation work, never the homeowner and never GetComfort.

From Milton Keynes, a grant-eligible air-to-air job is routed to an MCS-certified installer, while a pure cooling job goes to an F-Gas / REFCOM-registered engineer - the licence that covers refrigerant-only work. Homeowners researching this grant mix the two up more than anything else.