Heat pump grant eligibility — what to check before you get quotes
If you are trying to work out whether your home is likely to qualify for a heat pump grant, start with the Boiler Upgrade Scheme rules rather than sales promises. This guide covers the practical checks: EPC validity, insulation recommendations, installer requirements, landlord use cases and the common reasons a job gets delayed.
Quick eligibility checklist
Property location
For the Boiler Upgrade Scheme, the property must be in England or Wales. Scotland and Northern Ireland have different support routes, so BUS guidance does not apply there in the same way.
Valid EPC
You need an EPC dated within the last 10 years. The EPC does not have to show an excellent rating, but it does need to be current enough for the installer to use in the BUS application.
Insulation recommendations dealt with
If the EPC still recommends loft or cavity wall insulation, that usually has to be installed before the BUS voucher is issued — unless the work has already been done or has been assessed as technically unsuitable.
Existing property, not a standard new build
BUS is aimed at existing homes replacing an existing heating system. Standard new-build homes are generally excluded.
Eligible heating replacement
The grant is designed around replacing fossil-fuel or direct electric heating with a low-carbon system installed by an MCS-certified business.
Installer-led application
The customer does not apply directly for BUS. Your installer applies to Ofgem and deducts the voucher from the quote if the job qualifies.
The three checks that usually matter most
1. Check the EPC date first. If the certificate is more than 10 years old, the installer will usually need an up-to-date one before progressing the grant application. This is one of the simplest issues to fix, but it is also a common reason the process stalls.
2. Read the recommendation section, not just the band. Many homeowners focus on whether the property is EPC C, D or E. For BUS, the more important detail is whether loft or cavity wall insulation is still listed as recommended work. If it is, that often has to be resolved before the voucher can be issued.
3. Make sure the installer is talking about eligibility and design together. A credible quote should explain not only whether the property is likely to qualify, but also whether the house is genuinely a good fit for a heat pump in performance terms. Eligibility and suitability are related, but they are not the same thing.
Common heat pump grant questions
Do I need an EPC rating of C or above for a heat pump grant?
No. For the Boiler Upgrade Scheme, there is no fixed minimum EPC band such as C. What matters is that the EPC is valid and that any loft or cavity wall insulation recommendations have either been completed or formally ruled unsuitable. A D- or E-rated home can still qualify if those conditions are satisfied.
Can I get the BUS grant if my home is poorly insulated?
Sometimes, yes. Poor insulation alone does not automatically disqualify you. The key issue is whether the EPC still shows unresolved loft or cavity wall insulation recommendations. Even where a home qualifies, an installer may still recommend insulation or radiator upgrades first because they materially affect heat-pump performance and running costs.
Can landlords use the Boiler Upgrade Scheme?
Yes. Landlords can use BUS on eligible rental properties in England and Wales, provided the property meets the EPC and insulation conditions and the installation is carried out by an MCS-certified installer. The grant still works as a voucher deducted from the quoted install cost.
Can I apply for the heat pump grant myself?
Not for BUS. The application is submitted by the installer through the Ofgem portal. Your role is to choose a suitable installer, confirm the property details and accept the quoted work. If an installer asks you to claim BUS directly, that is a red flag.
What if my EPC still recommends cavity wall or loft insulation?
Usually that work must be completed before the BUS voucher can be issued, unless it has been assessed as unsuitable for the building. If you are unsure, start by checking the current EPC recommendations and ask the installer to confirm how they affect grant eligibility before you commit to a design.
Does the grant cover the full cost of a heat pump?
Usually not. The grant reduces the installed cost substantially, but many households still pay a contribution. The remaining amount depends on the system design, hot-water cylinder needs, emitter upgrades and any fabric work required around the job.
Want an installer to check your eligibility properly?
The useful next step is a quote from an MCS-certified installer who can check EPC status, insulation recommendations and system design assumptions together.