Which grants apply in England — and free quotes from vetted local installers.
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In England you can access the Boiler Upgrade Scheme (£7,500 heat pump grant, no income limit), 0% VAT, the Smart Export Guarantee, and — if lower income — ECO4 and the Warm Homes: Local Grant via your council.
Solar panels, heat pumps, batteries and insulation are charged at 0% VAT across the UK until 31 March 2027 — an automatic saving for everyone, applied by your installer.
Typically: 0% VAT (saves ~£1,300 on 4kW solar) · Who: Everyone · full guide · official
Funded by energy suppliers, ECO4 helps lower-income households (on qualifying benefits, with an EPC of D or below) with free or subsidised insulation and heating upgrades. Ends 31 December 2026, with the Warm Homes Plan taking over.
Typically: Free/subsidised insulation & heating · Who: Low-income / on qualifying benefits + poorer EPC · full guide · official
Delivered through local councils in England as part of the £15bn Warm Homes Plan, this helps lower-income households (roughly under £36k income, EPC D–G) with insulation, solar, heat pumps and batteries. Apply via your council.
Typically: Insulation, solar, heat pumps, batteries · Who: Lower income (~≤£36k) + EPC D–G · full guide · official
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Possibly. Low-income households on qualifying benefits with a poorer EPC may get free or heavily subsidised insulation through ECO4, the Warm Homes: Local Grant (England), Nest (Wales), or Home Energy Scotland. Eligibility is income- and property-based — check the guide for your nation.
Loft insulation can be a few hundred pounds; cavity wall £500–£1,500; solid-wall insulation £8,000–£15,000. Grants can cover much or all of it for eligible homes.
A well-insulated home needs a smaller, cheaper heat pump and runs it more efficiently. Many grant routes expect insulation first.