Cavity Wall Insulation Grants
Government-backed insulation grants in Wales are now available through the latest ECO scheme. With the Energy Company Obligation (ECO) program, you can access free installation of energy-saving measures, including cavity wall insulation, internal, and external wall insulation.
Find out if you qualify for a free insulation and heating system grant
What is Cavity Wall Insulation?
Cavity wall insulation is a process used to improve the energy efficiency of a building by filling the gap, or cavity, between the two layers of brickwork in an external wall. Most homes built after the 1920s have a cavity between the outer and inner walls, and insulating this space can significantly reduce heat loss. The insulation material, typically mineral wool, polystyrene beads, or polyurethane foam, is injected into the cavity, helping to keep the heat in during the winter and out during the summer.
This not only leads to a more comfortable living environment but also helps reduce energy bills and carbon emissions. Cavity wall insulation is a popular choice for homeowners looking to enhance their property’s thermal performance without altering its appearance.
What is the ECO Grant Scheme?
The ECO 4 grant scheme is part of the UK and Welsh governments’ commitment to reduce CO2 emissions and help lower-income families in Wales cope with the rising cost of heating their homes.
The ECO scheme runs until March 2026, with £4 billion in grant funding set aside by the largest energy companies to install energy efficiency measures such as solar panels and insulation.
Advantages of Cavity Wall Insulation...
- Improved Energy Efficiency: Cavity wall insulation reduces heat loss through your walls, leading to a more energy-efficient home.
- Lower Energy Bills: By keeping more heat inside, you’ll spend less on heating your home, resulting in significant savings on energy bills.
- A Warmer Home: Insulated walls help maintain a consistent indoor temperature.
- Reduced Carbon Footprint: By using less energy to heat your home, you’ll contribute to lowering your carbon emissions.
- Minimal Disruption: The installation process causes little disruption to your home and doesn’t require any major modifications.
Who Can Apply for Cavity Wall Insulation Grants?
100% free Cavity Wall Insulation grants are now available through the ECO4 government Energy scheme.
The ECO 4 grant is a government-funded program designed to assist households struggling with fuel poverty. If someone in your household receives a means-tested benefit and your home has a low energy rating, you may qualify for a fully-funded air source heat pump. This grant is non-repayable, meaning you won’t have to pay anything back.
- Homeowner or Tenant in the UK
- Receive income-related benefits
- Health Conditions such as; Cardiovascular, Respiratory, Immunosuppression & Limited Mobility
- Current EPC rating of E, F or G
What other wall insulation grantsare available?
If your property is not suitable for internal wall insulation, there are other options available.
External Wall Insulation
External wall insulation improves your home's energy efficiency by adding a layer of insulating material to the exterior of your property. This helps to prevent heat loss and reduce your energy bills. External wall insulation is an effective solution for homes with solid walls, where traditional cavity wall insulation is not possible.
Internal wall insulation
Internal wall insulation is a great solution for reducing heat loss, lowering energy bills, and enhancing indoor comfort without altering the external appearance of your home. This method is particularly beneficial for properties with solid walls where external or Internal wall insulation may not be feasible.
FREE Cavity Wall Insulation GRANTS IN WALES
How do Cavity Wall Insulation grants work?
Find out if you qualify for FREE energy-saving grants for your home.
Check your Eligibility
Use our online form to share details about your property’s heating system, construction and whether your household receives any benefit.
We Arrange aHome Survey
If you meet the eligibility criteria, we will reach out to arrange a free central heating survey at your home. We will also assess your insulation.
FreeInstallation
If approved, we handle the installation of the heat pump, along with new radiators, pipework etc, and you don’t have to do anything.
Cavity Wall Insulation FAQs
Most homes built after the 1920s with unfilled cavity walls are suitable for cavity wall insulation. A professional assessment can determine if your property has the appropriate cavity walls and if they are in good condition for insulation installation.
Cavity wall insulation is designed to be a long-term solution and can last for the lifetime of your property. The materials used are durable and resistant to degradation, providing ongoing energy savings.
Yes, cavity wall insulation can provide some level of soundproofing by reducing the transmission of noise through walls. While its primary function is to improve thermal efficiency, it can also help in reducing external noise.
If the insulation in your loft or attic is below the recommended depth of 270mm this can be topped up with mineral wool through the scheme. If your property has roofs built into the roof with dormer or velux windows the process is different. All stud walls, sloping walls and gables must also be insulated to prevent heat escaping.
Room-inroof insulation is similar to solid wall insulation. It can be fitted to the existing walls with strapping and then skimmed. The full cost of this will be covered with a grant.