Great British Insulation Scheme

The Great British Insulation Scheme (GBIS), formally known as ECO+, is a government funded energy efficiency scheme, designed to deliver insulation measures to energy inefficient homes.

The scheme is an obligation on large and medium energy suppliers to support households to reduce their energy usage, however unlike ECO4 and ECO4 Flex, this scheme will deliver single insulation measures rather than following a whole house multi-measure approach.

Insulation measures you could receive through the Great British Insulation Scheme include:

  • cavity wall
  • loft
  • solid wall
  • pitched roof
  • flat roof
  • under-floor
  • solid floor
  • park home
  • room-in-roof


The scheme aims to support low-income and vulnerable households, (the low income group), however it will also be available to residents living in homes with an Energy Performance Certificate (EPC) rating of D-G, and within Council Tax bands A-D (general group).

To be eligible under the low income group you must be in receipt of one of the below benefits:

  • Child Benefit
  • Pension Guarantee Credit
  • Income-related Employment and Support Allowance
  • Income-based Jobseeker's Allowance
  • Income Support
  • Tax Credits (Child Tax Credits and Working Tax Credits)
  • Universal Credit
  • Housing Benefit
  • Pension Credit Saving Credit

To qualify, you must also own your property or have your landlord's permission. Your home's suitability for the scheme and the measures to be installed will be confirmed following a retrofit assessment of your property. This visit looks at what energy efficiency measures could be suitable for your home and how these measures could reduce your energy use and carbon emissions. Please note, eligibility for the scheme does not mean you are guaranteed to receive measures through ECO or GBIS. It is up to the energy supplier to decide which measures they wish to install and the level of funding.

The scheme is administered by Ofgem and will run until March 2026.

The Ofgem Great British Insulation Scheme web pages provide more information on the scheme including how you can apply.