Why Are ECO4 and GBIS Upgrades Free?

Funded by Government Grants

The Energy Company Obligation (ECO4) and the Great British Insulation Scheme (GBIS) are part of the UK’s strategy to reach Net Zero by 2050.

• Under ECO4, large energy suppliers are legally required to pay for energy-saving improvements in eligible households and have a £4B fund to use by the March 2026 deadline.

• GBIS is focused on improving insulation in homes with poor energy efficiency and has a £1B fund to use by the March 2026 deadline.

This means the funding comes from energy companies — not from you.

Who Can Qualify for Free Upgrades?

• Your home has an EPC rating of D–G.

• You receive certain income-related benefits (or qualify under local council “LA Flex” rules).

• Your property has inefficient heating (like electric heaters, solid fuel, or an old boiler).

• You live in a property that has never had central heating installed.

Even if you don’t claim benefits, you could still qualify under GBIS, which is designed to help middle-income households.

What Upgrade Can I Get?

Depending on your home and circumstances, you could qualify for free or subsidised boiler replacements, insulation, solar panels, or air source heat pumps.

Learn more about the services we offer.

Do I Ever Have to Pay Anything?

In most cases, the upgrades are 100% free if you qualify. Some households may be asked to make a small contribution under GBIS, depending on the property type and the work required — but we will always make this clear before anything is installed.