Is loft insulation free in 2026?

For eligible lower-income households via ECO4/Warm Homes Local Grant; others benefit from 0% VAT to March 2027.

Government Insulation Grants (UK)

Insulation is the cheapest carbon and bill saving you can make. This guide maps every live UK insulation grant so you claim the right one and never pay for what should be free.

Last reviewed: August 2026

Live routes

ECO4 (low-income households, closes Dec 2026); Warm Homes Local Grant (council-delivered, from 2027); 0% VAT on insulation and solar to March 2027.

What's covered

Loft, cavity wall, solid wall (internal/external), underfloor and room-in-roof insulation, as part of a whole-house package where eligible.

Watch out

Never pay an 'application fee' — legitimate grants are free to apply for. Use only TrustMark-registered installers.

FAQs

Is loft insulation free in 2026?: For eligible lower-income households via ECO4/Warm Homes Local Grant; others benefit from 0% VAT to March 2027.