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Who Can Get a Cavity Wall Insulation Grant in 2024?

With energy costs in the UK on the rise, keeping homes warm and bills affordable is becoming a real challenge. Many families are finding themselves facing the tough reality of fuel poverty. That's where cavity wall insulation comes in as a game-changer.

This article will explore how cavity wall insulation can help beat those rising costs and make homes cosier, and importantly, who can get help with a cavity wall insulation grant in 2024?

Cavity wall insulation is more than just a home upgrade; it's a key step for many UK homeowners and renters to keep their homes warm without breaking the bank. It's all about trapping heat in your home, meaning you can turn down the thermostat and still stay warm. Lower heating bills and a comfier home sound great, right?

What is Cavity Wall Insulation?

Cavity wall insulation is a method used to improve the energy efficiency of a building by reducing heat loss. Here's a breakdown of what it is and how it works:

Understanding the Structure

Most homes built after the 1920s in the UK have cavity walls. These consist of two layers of brick or block walls, with a gap or 'cavity' between them. This cavity can be anywhere from 50mm to over 100mm wide.

The Purpose of Cavity Wall Insulation

The primary purpose of cavity wall insulation is to reduce heat transfer between the inside and outside of a building. Without insulation, the cavity can allow heat to escape more easily, leading to higher energy consumption for home heating.

Types of Insulation Material

Various materials can be used for cavity wall insulation, including mineral wool (fibreglass), foam, or beads. These materials are inserted into the cavity, effectively filling the space and reducing heat loss.

The Process

The installation process typically involves drilling small holes in the external walls of the house and then blowing the insulation material into the cavity. The holes are then sealed to maintain the aesthetic and structural integrity of the building.


Insulating cavity walls can significantly reduce the amount of heat lost through walls, which can account for up to a third of the total heat loss in an uninsulated home. This results in lower heating bills, improved energy efficiency, and a reduction in carbon emissions. Additionally, it can help prevent condensation inside the house, which can lead to damp problems.


Not all homes are suitable for cavity wall insulation. It's important that the home's exterior walls are in good condition, and the cavity is clear of debris. Homes in areas with high exposure to driving rain may need additional considerations to prevent dampness.

Cavity wall insulation is a cost-effective way to improve the thermal performance of a house, making it an appealing option for homeowners looking to reduce their energy costs and carbon footprint.

Why Consider Cavity Wall Insulation?

Cavity wall insulation is a wise choice for UK homeowners for several reasons, especially given the rising energy costs and the nation's climate goals. Here are some key benefits:

Energy Cost Savings: Cavity wall insulation significantly reduces heat loss through walls, which can account for up to 35% of heat loss in homes without insulation. This reduction directly translates to lower heating bills. Although I don’t have access to the latest statistics, data from previous years indicate that homeowners could save hundreds of pounds annually on their energy bills by insulating their cavity walls.

Enhanced Home Comfort: Insulation helps maintain a consistent indoor temperature by keeping the house warmer in winter and cooler in summer. This means a more comfortable living environment throughout the year.

Reduced Carbon Footprint: By using less energy to heat your home, you’ll also be reducing your carbon emissions, contributing to environmental conservation and the UK's broader climate change goals.

Prevention of Damp and Mould: Cavity wall insulation can also help prevent dampness and mould growth within the home, which are not only damaging to the structure but can also pose health risks.

Increased Property Value: Homes with better energy efficiency ratings are increasingly sought after in the real estate market. Installing cavity wall insulation can improve your home's Energy Performance Certificate (EPC) rating, potentially increasing its resale value.

Eligibility for Grants: Many homeowners in the UK might be eligible for grants or funding schemes to help cover the cost of installing cavity wall insulation, making it a financially viable option.

In summary, cavity wall insulation offers UK homeowners a practical solution to reduce energy bills, improve home comfort, and contribute to environmental sustainability, all while potentially increasing their property's value. Now, let's talk more about the funding that might be available to you.

What Cavity Wall Insulation Grants Are Available in 2024?

Households that meet certain criteria can access cavity wall insulation grants through the government-endorsed ECO4 and the Great British Insulation Schemes (previously known as ECO+). These schemes are funded by the UK's leading energy providers.

These programs offer financial assistance to households for enhancing their home's energy efficiency (as measured by the Energy Performance Certificate or EPC), thereby reducing their carbon emissions and cutting down heating bills.

Eligibility for these grants depends on various factors. Households receiving income-based benefits are often eligible for the ECO4 grants. Meanwhile, the Great British Insulation Scheme typically supports households with lower EPC ratings situated in the lower Council Tax bands. Let's take a closer look:

What You Need To Qualify For the ECO4 Cavity Wall Insulation Grant

The ECO4 scheme isn't accessible to everyone, but we're here to help determine if you're eligible. It's important to note from the start that we can only secure funding for privately owned homes, which includes properties that are privately rented.

If you're a resident in social or council housing, we recommend reaching out to your landlord or housing provider, as they may have access to different funding opportunities.

For eligibility under the ECO funding scheme, at least one person living in the property must be receiving one of the following benefits or tax credits:

  • Universal Credit

  • Child Tax Credit

  • Working Tax Credit

  • Housing Benefit

  • Income Support

  • Pension Credit Savings Credit

  • Pension Credit Guarantee Credit

  • Income-based Jobseekers Allowance

  • Income-related Employment & Support Allowance

  • Child Benefits (depending on how much you earn)

What You Need to Qualify For the Great British Insulation Scheme

Qualifying for the Great British Insulation Scheme (GBIS) generally involves meeting certain criteria, which may include:

Energy Performance Certificate (EPC) Rating: Your home typically needs to have a lower EPC rating, often in the lower bands (such as D, E, F, or G). The scheme aims to improve energy efficiency in less efficient homes.

Council Tax Band: Eligibility may be linked to your home’s Council Tax band, with preference often given to those in lower bands, indicating a less valuable property.

Location: Some local authorities may have specific criteria or priorities based on geographic areas within their jurisdiction.

Income Level: There might be income thresholds or criteria focusing on lower-income households to ensure the scheme benefits those who are most in need of assistance to reduce their energy bills.

Homeownership Status: Similar to other schemes, GBIS often targets privately owned or privately rented homes. Social housing or council-owned properties might not be eligible under this scheme but could be covered under other government initiatives.

Ready to Enhance Your Home's Energy Efficiency?

Don't miss out on the opportunity to make your home warmer, more efficient, and cost-effective. Discover if you're eligible for cavity wall insulation grants today! Simply fill in our quick and easy Eligibility Checker form. It's the first step towards reducing your energy bills, enhancing your home comfort, and doing your bit for the environment. Take action now and see how much you can save.

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Check Your Eligibility Using Our Grant Checker

Please ensure that all information provided below is 100% accurate. Any errors in your personal information could delay or prevent you qualifying for a government funded grant.

Please note that you do not necessarily need to be in receipt of tax credits or benefits as we still may be able to obtain funding for you via your Council or through other funding schemes.

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