The Energy Company Obligation (ECO) includes a key component called the Home Heating Cost Reduction Obligation (HHCRO), also known as the ‘Affordable Warmth’ scheme. ECO4 is a government-backed energy efficiency initiative across Great Britain, designed to address fuel poverty and lower carbon emissions. Through the scheme, medium and large gas and electricity providers, including major suppliers like British Gas, EDF Energy, Eon, Ovo, Scottish Power, and SSE, are required to help households improve energy efficiency with various solutions, such as:
- Electric storage heaters
- Loft insulation
- Cavity wall insulation
- Solid wall insulation
- Boiler replacement or repair

- Medium and large energy suppliers fund the installation of energy-saving upgrades in UK homes.
- Each supplier’s target is based on its share in the domestic energy market.
- Suppliers collaborate with certified installers to introduce insulation and heating improvements into eligible homes, including loft, floor, and wall insulation.

The HHCRO requires energy providers to support measures that lead to direct savings on energy bills, particularly for insulation and heating improvements, benefiting households in need of financial assistance.

You may qualify for ECO4 funding if you meet these requirements:
- You own and reside in your home or rent privately.
- You or any household member receives certain qualifying state benefits, such as those for low-income or disabled individuals (benefit recipients can include a child, parent, grandparent, or spouse residing in the household).
The ECO4 scheme is here to make energy efficiency upgrades more accessible, helping households achieve greater warmth and comfort while reducing heating costs.
55% of your annual energy costs are related to heating. With the assistance of our fully-certified home heating specialists, our service will handle the grant application process and the complete installation; there are no equipment, removal, or installation costs.
Savings of up to £300 per year*
With our ‘A’ efficiency rating, our boilers will use less fuel to heat your property and provide hot water. Savings of up to £300 per year*
Your energy bills will go down since our boilers are so efficient.
A new energy-efficient boiler will guarantee that your home stays warm!