How heat pump grant funding works, in principle

What we can say clearly, and what we cannot

Eligible air-source heat pump installations can receive £7,500 through the Boiler Upgrade Scheme. The grant is applied to the eligible installation cost rather than paid to you afterwards. Where a project proceeds through our Ample partnership, Ample manages the BUS process, the relevant MCS/compliance route and the required DNO application or notification process. Eligibility remains subject to the current scheme rules and the individual property and project.

Airwarm works in partnership with Ample, who provide the MCS framework and compliance route behind installations delivered through the partnership. Airwarm is not MCS certified itself, and the partnership does not make an ineligible property eligible. How the partnership works.

What we can usefully do is explain how these schemes tend to be structured, so you can ask the right questions of any installer, including us.

For a current, authoritative answer on a specific scheme, the scheme’s own guidance on GOV.UK is the place to look, and the certification body’s public register is where you check any installer’s status.

How grant funding for heat pumps generally works

Five features are common to the way domestic low-carbon heating grants have been structured in England and Wales.

1. The installer applies, not the homeowner

   In most schemes of this type the certified installer makes the application on the household’s behalf and the value is reflected in what the household pays. It is not a cheque that arrives afterwards, and there is normally nothing for the homeowner to reclaim.

2. The installer must hold the right certification

   Grant schemes rely on a certification framework to assure quality, which normally means the installing business must be certified for the specific technology and in scope at the time of the work. This is why installer certification is a practical question and not a badge.

3. The property has to meet conditions

   Schemes define which properties and existing heating systems qualify, and those conditions are revised from time to time. They are properly answered against the scheme’s current guidance for your specific property, not from a general article.

4. The installation has to meet a technical standard

   Grant-funded work normally has to comply with the certification scheme’s design and installation standards, which is why a proper heat loss calculation and a documented design are not optional extras.

5. Funding is budgeted and time-bound

   Schemes are funded for defined periods, and government has at times set out multi-year funding for heat pump support, which gives more planning certainty than a year-to-year scheme would. Terms still change, so confirm the current position at the point you decide.

There may also be routes that are not grants at all, such as loan or finance schemes. These are separate, have their own rules, and Airwarm does not give financial advice on them.

Why it matters for your project

Grant funding changes what a project costs a household, but it does not change what the building needs. The heat loss calculation, the emitter schedule, the cylinder and the flow temperature are all decided by the property.

If grant support is relevant to your decision, establish it before a proposal is finalised, because the certification requirements affect who can do the work and how it must be documented. Discovering the question late is how projects stall.

What Airwarm checks and does about it

Airwarm’s position is deliberately conservative at this stage.

• Airwarm will tell you plainly how certification works for your project: installations delivered through our Ample partnership follow the MCS route Ample provides, and Airwarm does not claim a certification it does not hold itself.
• Airwarm checks your EPC position and the project’s likely eligibility as part of the Desktop Review, because schemes can have their own requirements, and tells you if a scheme looks unlikely to apply.
• Airwarm will not take a deposit against grant funding that has not been confirmed.
• Airwarm designs to the certification scheme’s technical standards regardless of funding, because that is the standard the work should meet anyway.
• Where a scheme is relevant, Airwarm will point you to its current guidance rather than paraphrasing it into something that might be out of date.
• The proposal separates what is technically required from what is commercially optional.

Common questions

“Any installer can access grant funding.” They cannot. Certification for the specific technology is normally required, and it can be checked on a public register. Ask, and verify.

“The grant is paid to me.” Typically not. It reduces what you pay, and the installer handles the claim.

“A grant means the work is guaranteed to be good.” Certification schemes set standards and provide a complaints route, which is genuinely valuable. It is not the same as a guarantee, and it is not a substitute for reading the design and asking how the heat loss was calculated.

“If I do not qualify, there is nothing worth doing.” Not so. Insulation, draughtproofing, emitter upgrades and correcting a poorly performing existing system are all worthwhile in their own right, and they all improve the position if you return to a heat pump later.

“Grant rules never change, so I can plan around today’s terms.” Terms and conditions do move, even where funding has been committed for several years. Treat scheme rules as something to confirm at the point of decision rather than something to assume.

Next step

Start with the Home Energy Assessment. A quick first step to understand whether a heat pump is worth exploring for your property.

Then check the current position for yourself on GOV.UK for the scheme in question, and check any installer’s certification on the certification body’s public register before you commit to anything.