External Wall Insulation
External Wall Insulation is ideal for homes with solid walls or poorly insulated cavity walls. These homes can lose up to 45% of their internal heat through the external walls.
Installation Process:
A layer of insulation boards (e.g., expanded polystyrene, phenolic foam) is fixed to the exterior walls using adhesive and mechanical fixings.
A reinforced base coat is applied, followed by a protective render or decorative finish (e.g., brick slip, pebble dash).
Our Certifications and Awards
Benefits of External Wall Insulation (EWI)
Key Benefits:
Drastically reduces thermal losses through walls.
Improves weather resistance and exterior appearance.
Helps reduce damp and condensation issues.
Can save £400–£500+ annually on energy bills.
Considerations:
May require planning permission in conservation areas.
Increases wall thickness slightly, affecting windowsills and doorframes.
ECO4 Applicability:
Best suited for properties without cavity walls.
Helps significantly improve a home’s EPC rating when combined with other measures.
SEND A MESSAGE
Get in Touch
We will respond to your message as soon as possible.
Get In Touch
Reach out to our expert team for guidance, free surveys, or help with your application. We’re ready to support you at every step of your home energy upgrade.