Loft Insulation Grant

Free loft insulation grants available now. Save up to £590/year on energy bills. ECO4 and GBIS schemes cover full cost. Check eligibility.

Free Loft Insulation — The Easiest Energy Upgrade

Loft insulation is the single most cost-effective way to reduce your energy bills. A quarter of your home's heat escapes through an uninsulated roof. Through ECO4 and GBIS, you can get loft insulation installed for free.

How Much Can You Save?

  • Detached house: up to £590/year
  • Semi-detached: up to £390/year
  • Mid-terrace: up to £210/year
  • Bungalow: up to £310/year

Do I Need Loft Insulation?

Government guidelines recommend 270mm of loft insulation. If yours is less than 100mm (about 4 inches) — or if you have none at all — you almost certainly qualify for a free top-up or full installation.

How It's Installed

Loft insulation rolls are laid between and over the joists in your loft space. The process:

  • Takes 2-4 hours
  • Installers access via your loft hatch
  • No disruption to the rooms below
  • Existing insulation is topped up, not removed

Who Qualifies?

ECO4: Qualifying benefits + EPC D or below

GBIS: Council tax bands A-D — no benefits needed

Both schemes cover the full cost. Check your eligibility now.

Don't Wait

Both ECO4 and GBIS run until December 2026. Loft insulation is quick to install and provides immediate savings from your next energy bill.

Check Your Eligibility

Find out which grants you qualify for in 60 seconds.

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Common Questions

Yes, through ECO4 (with benefits) or GBIS (council tax bands A-D, no benefits needed). Both cover 100% of the cost.
The recommended depth is 270mm. If yours is under 100mm, you qualify for a free top-up. If you have none, you qualify for full installation.
2-4 hours. Installers work in your loft space with no disruption to the rooms below.
Converted lofts need room-in-roof insulation instead, which is also available free through ECO4.