Cavity wall insulation fills the space between walls with fibre material, reducing heat loss and improving thermal performance. It’s a quick installation with long-term savings, helping to keep your home warmer without overworking your heating system. Suitable for many homes built after the 1920s.

Cut Heat Loss and Lower Bills with Hidden Efficiency

Many homes built after the 1920s have cavity walls — two layers of brick with a gap (or “cavity”) in between. If this space isn’t insulated, up to 35% of your home’s heat can escape through the walls. Cavity wall insulation fills this gap with a special insulating material, helping your home retain heat, cut down on energy bills, and feel warmer all year round.

Benefits of Cavity Wall Insulation:

  • Reduces heat loss by up to 35%

  • Lowers heating costs significantly

  • Improves indoor comfort and eliminates cold spots

  • Minimally invasive installation

  • Environmentally friendly – reduces carbon emissions

How It Works:

Our qualified team drills small holes into the outer walls of your home and injects high-performance insulation material into the cavity. The process is quick, clean, and causes minimal disruption. Once the material is in place, the holes are sealed, leaving the exterior looking as it was.

Free Through ECO4:

If you’re eligible under the ECO4 scheme, you can have cavity wall insulation installed completely free of charge. This measure is especially beneficial for older homes that haven’t yet been upgraded with modern insulation.