Most homes built since the 1990s already have wall insulation to help keep the heat in. But if your property is older, there’s a good chance it may not have any insulation at all — leading to unnecessary heat loss and higher energy bills.
Free Cavity Wall Insulation
Free Cavity Wall Insulation
Keep more warmth in your home with cavity wall insulation. Around a third of heat is lost through uninsulated walls — but with the government-backed ECO scheme, many households can have it fitted for free, helping to cut bills and improve comfort all year round.
See If You QualifyFree Cavity Wall Insulation with ECO Grants
Through the government-backed ECO scheme, many households can have cavity wall insulation installed completely free, with nothing to pay back. If you claim benefits, have a health condition, or a household income under £31,000, you could qualify. This simple upgrade makes your home warmer, more energy-efficient and cheaper to run.
Benefits of Cavity Wall Insulation
Cavity wall insulation is a simple way to make your home warmer, more energy-efficient and cost-effective. A specialist installs it from the outside by drilling small holes into the brickwork and injecting insulation — usually mineral wool or polystyrene beads, though polyurethane foam may also be used.
Once complete, the holes are sealed with cement, leaving a neat finish and improving your home’s comfort with minimal disruption.
Lower Heating Bills
Reduces heat loss, helping you save on energy costs.
Improved Comfort
Retains warmth, keeping your home cosy throughout the year.
Neat Installation
Installed from the outside, the cavity is filled through small drilled holes.
Government-Backed Grants for Your Home
Homes built after the 1920s are likely to have cavity walls — two walls separated by a gap, with the outer layer usually brick and the inner layer brick or concrete block. Older homes, built before 1920, often have solid walls, which can’t be insulated in the same way.
Thanks to the government-backed ECO scheme, many households can have cavity wall insulation installed for free. It only takes minutes to check if your property qualifies, making it simple to boost energy efficiency, cut heating bills and enjoy a warmer, more comfortable home.
Get FREE Government Funding to Upgrade Your Home
Through the government-backed ECO4 scheme, you could qualify for free home energy upgrades. Simply click below, enter your details, and answer a few quick questions to see if you’re eligible today.