
Free Cavity Wall Insulation Grants
If your home has cavity walls that are not insulated, you could be losing a large amount of heat through them every single day. That means higher energy bills and a colder home than necessary. The good news is that free cavity wall insulation grants are available through government backed schemes, making it possible to get your walls insulated without the cost falling on you.
Both the Eco4 scheme and the Great British Insulation Scheme (GBIS) are designed to help households reduce their energy use and save money. These programmes provide funding for improvements such as cavity wall insulation, ensuring that more homes across the UK can stay warmer and more energy efficient.
What is included?
A free cavity wall insulation grant can cover the full cost of installation, so you do not need to worry about paying for the work yourself.
Professional installers will drill small holes into the outside wall of your property and fill the gap with insulating material, before sealing the holes neatly.
The process is quick, clean and highly effective.
Who Can Apply?
Eligibility will depend on your circumstances and which scheme is right for you.
- Eco4 scheme: Typically aimed at low income households or those receiving certain benefits. It focuses on making homes more energy efficient, especially for people most at risk of fuel poverty.
- Great British Insulation Scheme (GBIS): A wider reaching programme, open to more households, including those in homes with lower Energy Performance Certificate (EPC) ratings.
Both schemes are designed to make insulation more accessible, and many homeowners and tenants are surprised to find that they qualify.

Why apply for a cavity wall insulation grant?
Cavity wall insulation is one of the most effective ways to keep your home warmer in the winter and cooler in the summer. By filling the gap between your walls with insulation material, you prevent valuable heat from escaping. This can mean:
- Lower monthly heating bills
- A warmer, more comfortable home
- Reduced carbon emissions
- Increased property value
With grants available under Eco4 and GBIS, there has never been a better time to take advantage of the support on offer.
Ready for the next step?
The best way to see if you are eligible is to check your circumstances against the requirements for the Eco4 and GBIS schemes. If you are unsure which one applies to you, we can help guide you through the process.
If you think cavity wall insulation could benefit your home, now is the time to take advantage of the free grants available. Whether through the Eco4 scheme or the Great British Insulation Scheme, there is support in place to make sure you do not have to carry the financial burden.
Get in touch with us today to check your eligibility and take the first step towards a warmer, more energy efficient home.