Government Grant for Air Conditioning: The £2,500 Truth
Updated 13 July 2026 · SEO Dons Editorial
The honest one-line answer
You have probably seen an advert, or taken a cold call, promising a "government grant for air conditioning". The claim is not quite a lie, but it is missing the part that decides whether it applies to you. There is genuine public money — a flat £2,500, live since 28 April 2026 — and it does pay towards the reversible split units most people call air conditioning. It is funded as a heating grant, though. To claim it you have to let that unit replace your existing heating. If your plan is to keep your gas boiler and add cool air for summer, you do not qualify, and no amount of salesmanship changes that.
So is there a grant for air conditioning, or not?
Both answers are true, which is exactly why the phrase causes so much confusion. The hardware is the same box you would call air conditioning: an air-to-air heat pump is reversible split air-con kit that heats in winter and cools in summer. Since 28 April 2026 that kind of unit has been eligible for the Boiler Upgrade Scheme (BUS), at a fixed £2,500 grant, in England and Wales, for residential properties (as at July 2026). That was the first time any UK government has funded air-conditioning-style technology, and the scheme is set to run to 2030.
The word doing the quiet work is "heating". The grant exists to help you get off a fossil-fuel or high-cost heating system, not to give you air conditioning as such. The cooling is a bonus you get for free with the hardware. The money is only released because the same box is now your source of winter heat.
The condition the cold-callers skip: you must replace your heating
This is the line that gets left off the leaflet. To qualify for the £2,500 you have to use the air-to-air unit to replace your existing heating system, and gov.uk lists that system as "oil, gas, electric or LPG". A few points follow from that, and each one disqualifies a large chunk of the people who searched for a cooling grant:
- You cannot keep a fossil-fuel boiler for space heating and add air-con alongside it. The scheme does not fund hybrids where the old boiler stays on for warmth.
- If you already have a heat pump, you cannot claim again for another one.
- Both the installer and the product must be MCS-certified — this is not optional.
- It is one grant per property, deducted upfront from the installer's quote so you never handle the money.
- New-builds (bar eligible self-builds) and social housing are excluded.
One myth worth killing while we are here: you may read that air-to-air only qualifies if it replaces direct electric heating. That is installer-blog folklore, not the rule. gov.uk plainly lists "oil, gas, electric or LPG". Air-to-air is best suited to all-electric and storage-heater homes, but it is not legally restricted to them.
Who qualifies, and who does not
| Your situation | £2,500 air-to-air grant? |
|---|---|
| All-electric or storage-heater home, replacing that heating with air-to-air | Yes — the strongest case |
| Off-gas home on oil or LPG, replacing that heating | Yes |
| Flat or park home swapping electric panels for air-to-air | Yes |
| Keeping the gas boiler, just want cooling in summer | No — you are not replacing your heating |
| Already have a heat pump, want to add cooling | No — one heat pump per property |
| Home in Scotland or Northern Ireland | No BUS there — see below |
| New-build (not an eligible self-build) | No |
If you land in a "No" row, that is not a failure of paperwork you can argue your way around. It is the design of the scheme.
It is £2,500 — not £7,500, not £9,000, and never "free"
The other job the cold-callers do is inflate the number. Be clear on the figures as at July 2026:
- Air-to-air heat pumps get a flat £2,500.
- The £7,500 you have seen quoted is for air-to-water heat pumps and ground-source — different technology, not the air-con box.
- The £9,000 off-gas uplift (running 21 July 2026 to 31 March 2027) is for air-to-water and ground-source only. Air-to-air is explicitly excluded from it.
So if a caller offers you a "£7,500 government grant for air conditioning", they are either confused or hoping you are. And nobody is giving away a "free air-con heat pump". The grant knocks £2,500 off a real quote; you pay the rest. On gov.uk's typical figure of around £4,500 for a small house or flat, that can leave a net cost anywhere from a few hundred pounds to a few thousand, depending on how many rooms you heat.
The grant is law — but a certified installer is the hard part
Here is the caveat almost no competitor will tell you, and it matters more than any headline figure. The grant itself is fully in force. What is still catching up is MCS certification for air-to-air installers. Through 2026 the certification bodies are still gaining the UKAS accreditation needed to certify these installers, the installer's Technical Supervisor needs RACHP Level 3, and MCS has given no fixed date — its own wording is that timescales are "varying".
The practical effect: in mid-2026, MCS-certified air-to-air installers are scarce. And no MCS-certified air-to-air installation means no grant, full stop. The £2,500 is real, and it is claimable in principle from 28 April 2026 — but on the ground, finding a certified installer who can actually redeem it is the genuine bottleneck right now. Treat anyone who glosses over that with caution.
The saving you get even if the grant is out of reach: 0% VAT
If you fall into a "No" row above, you are not entirely without help. Under HMRC VAT Notice 708/6, the supply and installation of a permanently-fixed air-to-air unit that provides heating carries 0% VAT across the whole UK until 31 March 2027, after which it rises to 5% (not back to 20%). That is a genuine price cut, and it stacks on top of the £2,500 grant where you qualify for both. The one condition is that the unit must provide heating — a cooling-only install does not get the VAT relief either.
This is especially relevant north of the border and in Northern Ireland. There is no Boiler Upgrade Scheme in Scotland, and Home Energy Scotland excludes air-to-air because it does not provide hot water. Northern Ireland has no BUS either. In both nations, 0% VAT is the only support on offer for these units as at July 2026.
Why we would rather tell you no
We are an information hub, not an installer and not a kit brand, so we have nothing to sell you by pretending you qualify when you do not. It is more useful to be straight: about half the people chasing an "air conditioning grant" want cooling while keeping their boiler, and they will not get the money. Better you know that now than after a survey and a hard sell. Where you genuinely do qualify — an all-electric or storage-heater home, a flat, a park home, an off-gas property ready to replace its heating — we can point you towards MCS-certified air-to-air installers, and the grant is worth having.
Your next step
Start with one question: are you willing to let the new unit be your heating, in place of what you have now? If yes, and you are in England or Wales, you are in the eligible group and the task becomes finding a scarce MCS-certified air-to-air installer to redeem the £2,500 for you. If you only want cooling, plan for a normal install with 0% VAT instead, and ignore any "free grant" pitch. Either way, check every figure against gov.uk before you sign, and never let a caller rush you.
Find an MCS-certified air-to-air installer
We aim to reply within one working day
Tell us a little about your home and we’ll help you find a genuinely MCS-certified air-to-air installer — the only kind who can secure your £2,500 grant. We’re an independent guide, not an installer, and we don’t sell kit.
- 1. Tell us your situation — your postcode and what you heat with now.
- 2. We sense-check the grant and point you to MCS-certified air-to-air installers near you.
- 3. You get honest quotes — no obligation, and no pushy calls.
- Independent guide
- gov.uk-sourced facts
- MCS installers only
- No obligation