Insulation grants in the UK

Quick answer

Insulation grants in the UK are mainly available through ECO4, the Great British Insulation Scheme and local authority routes. Most schemes prioritise EPC D-G homes and lower-income or vulnerable households.

Loft insulation grants

Topping up loft insulation to current standards is one of the most cost-effective improvements. Many low-income households can have it fitted for free.

Cavity wall insulation grants

Suitable for many homes built between the 1920s and 1990s with an unfilled cavity. A pre-install survey checks suitability.

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Solid wall insulation grants

Internal or external wall insulation can deliver large improvements but is more expensive. Higher grant amounts may be available.

Who may qualify?

Households on a low income
Households on qualifying benefits
Households with a vulnerable occupant
Properties in lower Council Tax bands (GBIS)

EPC and income considerations

EPC D-G homes are most likely to qualify. Some routes (notably GBIS) accept higher EPC ratings in lower-band homes.

DisclaimerThis page is for guidance only and does not guarantee eligibility. Final approval depends on the relevant scheme provider, local authority, installer assessment and property survey.

Frequently asked questions

Can I get all three insulation types together?

In some cases yes, but most homes only need one or two depending on construction.

Will it disrupt my home?

Loft and cavity works are usually quick. Solid wall works take longer and may need scaffolding.

Do tenants need landlord consent?

Yes. Schemes cannot proceed without it.

Do I need to be on benefits to apply?

Not always. Many schemes also accept lower-income households or households with vulnerable occupants under local authority flexible eligibility (LA Flex).

Does this checker guarantee funding?

No. It is a guidance tool. Final eligibility is confirmed by the relevant scheme provider, council or approved installer.

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