Requirements for Cavity Wall Insulation
To be eligible for a cavity wall insulation grant, your property must meet the following requirements:
Your home’s height should be less than 12m.
The brickwork or masonry must be in good condition.
Your property’s external walls must be accessible for installation.
The external wall structure should be unfilled brick walls with at least a 2-inch cavity.
Internal walls should be dry (any damp issues must be fixed before insulation).
The property should not have steel or timber frame construction.
Cavity Wall Insulation Grants for Pensioners
Age alone is not a qualifying factor, but pensioners in the UK may qualify for free cavity wall insulation under the ECO4 scheme if they meet specific criteria.
Low-Income Group
Annual gross household income below £31,000.
Receiving a means-tested benefit (e.g., Pension Credit Guarantee).
Home with an EPC rating below D (homeowners) or below E (renters).
Living in social housing and vulnerable to the cold (age can be a factor).
General Group
Property within council tax bands A–D in England or A–E in Scotland & Wales.
A resident with a medical condition worsened by poor insulation.
Household with a child under 5 or a resident over 65.
Are You Interested?
Check Your Eligibility To Avail These Grants
Cavity Wall Insulation Grants in the UK – ECO4 & GBIS
Cavity wall insulation grants in the UK are available through the Great British Insulation Scheme (GBIS) and the ECO4 scheme, helping eligible households fully or partially cover the cost of insulation. These government-backed grants are designed to improve home energy efficiency, reduce fuel poverty, and support the UK’s net zero carbon emissions target by 2050.
Grant coverage depends on factors such as household income, EPC rating, council tax band, and benefits eligibility. In most cases, qualifying applicants can receive free cavity wall insulation in the UK, although more complex installations may require a small contribution.
Are you eligible for free cavity wall insulation?
To qualify for a cavity wall insulation grant in 2025, your property must meet specific conditions:
Cavity wall insulation removal grants
In some cases, poorly installed or damaged insulation needs to be removed. While age alone isn’t a qualifying factor, pensioners may still qualify under the Low-Income Group or General Group depending on income, EPC rating, and health conditions.
How to File a Cavity Wall Insulation Complaint with CIGA
If you need to raise a complaint regarding cavity wall insulation, the Cavity Insulation Guarantee Agency (CIGA) offers a straightforward process:
General Group
Property within council tax bands A–D in England or A–E in Scotland & Wales.
A resident with a medical condition worsened by poor insulation.
Household with a child under 5 or a resident over 65.
Benefits of Cavity Wall Insulation
Healthier Planet
Insulated homes retain heat, reduce energy waste, and cut carbon emissions—supporting a greener, more sustainable UK.
Healthier Home
Prevents damp, condensation, and mould, improving air quality and protecting your family’s health.
Low Maintenance
Professionally installed cavity wall insulation lasts up to 25 years with minimal upkeep.
Higher Property Value
Boosts your EPC rating, making your home more attractive to buyers and tenants.
Fast Payback
Delivers some of the highest annual energy savings, often paying for itself in under 10 years.
ECO4 Scheme Eligibility | Free Boiler Grant UK 2025
You may qualify for the Eco Boiler Scheme if you receive one of these UK benefits
- Income-Based Jobseeker's Allowance (JSA)
- Income Related Employment & Support Allowance (ESA)
- Income Support (IS)
- Pension Guarantee Credit
- Working Tax Credit (WTC)
- Child Tax Credit (CTC)
- Universal Credit (UC)
- Housing Benefit
- Pension Savings Credit
John Smith
20 Nov 2021
Excellent service from start to finish. The team was professional and the new boiler works perfectly. Highly recommended for anyone looking for quality installation.
Emma Wilson
18 Nov 2021
Great experience with the team. They explained everything clearly and completed the work efficiently. Very satisfied with the results and would use again.
David Turner
12 Nov 2021
The installation was quick and hassle-free. My home feels warmer and my energy bills have already started to drop. Thank you for the fantastic service!
Sarah Patel
05 Nov 2021
I was unsure about applying for the ECO4 scheme, but the team guided me through every step. The new boiler is brilliant and the process was smooth.
Michael Brown
28 Oct 2021
Very professional and friendly staff. The free boiler grant made a real difference for my family. Highly recommend this service to others.
Are You Interested?
Check Your Eligibility To Avail These Grants