Free Insulation Grants 2026: Are You Eligible?

Free Insulation — Is It Really Possible?

Yes, it genuinely is. The UK government runs several schemes that fund home insulation improvements at no cost to eligible homeowners. Thousands of households qualify but never apply, simply because they don't know these schemes exist.

ECO4 Scheme

The Energy Company Obligation (ECO4) is the largest government-backed insulation scheme currently running in the UK. It requires major energy suppliers to fund energy efficiency improvements in eligible homes.

What's Covered

• Loft insulation
• Cavity wall insulation
• Solid wall insulation
• Underfloor insulation
• Heating system upgrades

Who Qualifies

You may be eligible if you receive Universal Credit, Pension Credit, Child Tax Credit, Working Tax Credit, Income Support, Income-based JSA, Income-related ESA, or Housing Benefit.

Additionally, if your home has an EPC rating of D, E, F, or G, you may qualify through the LA Flex pathway — even without receiving benefits.

Great British Insulation Scheme (GBIS)

GBIS has two eligibility routes:

Route 1 — Benefits-based: If you receive any means-tested benefits and live in a home rated EPC D-G.

Route 2 — Council Tax-based: If your home is in Council Tax bands A-D (England) or A-E (Scotland and Wales), regardless of whether you receive benefits.

This second route means millions of working households could still get free insulation.

Local Authority Schemes

Many local councils run their own energy efficiency programmes with different funding criteria. Contact your local council's energy or housing department to find out what's available.

How to Maximise Your Chances

1. Get an EPC Assessment First

A lower rating actually works in your favour for grant eligibility, as schemes target the least efficient homes.

2. Check Multiple Schemes

You might be eligible for ECO4 for loft insulation and a local authority grant for other improvements.

3. Use an Approved Installer

Always use installers registered with the relevant scheme for proper certification.

4. Act Promptly

Government schemes have fixed budgets. Once funding is allocated, the scheme closes until the next round.

What If You Don't Qualify?

Even without grants, the investment is worthwhile. Professional loft insulation typically costs £300-£1,000 with potential savings of £200-£590 per year and a payback period of just 1-3 years.

A free property assessment can check your eligibility across all available schemes and identify which improvements would benefit your home the most.