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How To Secure A Cavity Wall Insulation Grant To Reduce Your Bills

3 April 2024 | Grants & Schemes

Cavity wall insulation is a proven way to dramatically improve your home’s energy efficiency and reduce your energy bills.

If your home was built in the modern era of home construction (any time after 1975) then there’s a good chance your home has cavity walls, and can therefore benefit from this measure. Let’s explore securing a cavity wall insulation grant to make your home warmer and more cost-effective.

What is Cavity Wall Insulation?

Cavity wall insulation involves filling the gap between your home’s inner and outer walls with insulating material, such as mineral wool, polystyrene beads, or polyurethane foam. This process is essential for minimising heat loss and maintaining a comfortable indoor temperature all year round.

Benefits of Cavity Wall Insulation

Investing in cavity wall insulation offers several key benefits to homeowners and tenants, including:

Improved Energy Efficiency – keeping your home warmer in the winter and cooler in the summer, reducing reliance on heating and cooling systems.

Cost Savings – save over £300 a year on energy bills

Reduced Carbon Footprint – by using less energy to heat your home, you contribute to less carbon emissions, making your home more environmentally friendly.

What If I Can’t Afford Cavity Wall Insulation?

Financial constraints, particularly during the energy crisis can create reluctance when it comes to making home improvements, even if it’s to improve your home’s energy efficiency. However, cavity wall insulation grants are available through two schemes: the ECO4 grant scheme and the Great British Insulation Scheme (GBIS).

The ECO4 Scheme

The ECO4 scheme is aimed at assisting low-income and vulnerable households by fully or partially funding energy-saving installations. This includes a number of measures including loft and wall insulation, boiler upgrades, heat pumps and double glazing.

How it Works:

ECO4 targets households on specific benefits like Income Support or Universal Credit.

It provides full funding for eligible energy-saving measures, including cavity wall insulation.

It is managed by energy providers, who have pledged to support energy efficiency in homes.

Eligibility Requirements:

Receipt of certain government benefits

Ownership or renting of a home with low energy efficiency

It is managed by energy providers, who have pledged to support energy efficiency in homes.

The GBIS Scheme

The Great British Insulation Scheme focuses on delivering quick, energy-efficient insulation measures to a broader range of residents.

How it Works:

Aims to quickly improve home energy efficiency with specific insulation measures.

Not dependent on receiving government benefits, therefore accessible to more UK residents.

Expected to last up to 3 years, offering free insulation measures, including cavity wall insulation.

Eligibility Requirements:

Your home must have an EPC rating of D-G.

You must live in qualifying council tax bands (varies across England, Scotland, and Wales)

How to Check Your Eligibility

Determining if you’re eligible for a cavity wall insulation grant is easy with the Residential Energy Services eligibility checker. Here’s what you need to do:

Fill out a quick form on their website with details like household income, council tax band, and EPC rating.

A RES representative will assist with the next steps, ensuring you can apply for the necessary funding for insulation upgrades.

Securing a cavity wall insulation grant is a transformative step for homeowners looking to improve their home’s energy efficiency and reduce heating bills. By understanding the offerings of the ECO4 and GBIS schemes and checking your eligibility with us, you can take advantage of the financial support available to make your home more comfortable and cost-effective.

Get in touch with us


Residential Energy Services Limited
Residential Energy Support CIC
Company Number - 15188106

Smart Innovation Hub,
IC6 Denise Coates Foundation Building,
Keele University,
Newcastle Under Lyme,
Staffordshire, ST5 5NS
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