Loft insulation grants in Wales

Nest at a glance

Nest is the Welsh Government’s scheme providing “free advice and home improvements to help you save energy and money.” Eligible households may receive energy efficiency improvements such as insulation, heat pumps and solar panels, and homes without working heating or hot water may qualify for repairs or replacements. The improvements are free.

The money test, in detail

Nest’s means-tested benefits include Council Tax Reduction, Pension Credit and Universal Credit, and Child Tax Credit where household income is below £18,660 a year. The Welsh Government notes that older legacy benefits such as Housing Benefit and Income Support have moved to Universal Credit.

If you are not on a qualifying benefit, Nest looks at income after your mortgage or rent is paid, with thresholds that depend on who lives in the home. Two examples from the eligibility page: a single adult with no children must have income under £15,521 a year; a couple with no children under £23,166. Disability-related payments are not counted as income. The threshold is lower than ECO4 LA Flex’s £31,000 gross figure, but because it is measured after housing costs, it can suit households with high rent or mortgage payments.

The home test

Nest uses the EPC score rather than just the band letter. A score of 54 or lower (band E or below) qualifies. With an eligible health condition, a score of 68 or lower (band D) qualifies. A household at 68 without a qualifying condition goes on a reserve list. The conditions listed include respiratory and circulatory disease, mental health conditions, dementia and intellectual or developmental disorders, and you will need evidence such as prescriptions, medication packaging, treatment plans or GP or hospital letters.

ECO4 in Wales

ECO4 applies in Wales as it does in England and Scotland, until 31 December 2026. It uses the GOV.UK benefit list (which includes Child Benefit and Housing Benefit) and EPC D-G for owners, E-G for private tenants, and Welsh councils can refer households through LA Flex on income under £31,000 or the proxy routes. For some households ECO4 is the easier fit: an owner-occupier in a band D home with no health condition is outside Nest’s standard route but inside ECO4’s property rule. See ECO4 loft insulation.

Nest or ECO4?

Start with the Welsh Government’s online eligibility checker for Nest. If Nest does not fit, look at ECO4 through a supplier, an installer or your council’s LA Flex scheme. If neither fits, the cost guide shows what the job costs, and the DIY guide covers doing it yourself.