External Wall Insulation
Transform solid walls with insulation cladding. Save £300-£500/year. Often free with ECO4
Get Free Quotes from InstallersWhat is External Wall Insulation?
External Wall Insulation (EWI) involves adding insulation boards to the outside of solid walls, then covering with a protective render or cladding. It's ideal for homes built before 1920 that have solid walls instead of cavity walls.
EWI can reduce heat loss through walls by up to 45%, saving £300-£500 per year on heating bills. It also improves your home's appearance and protects the exterior from weather damage.
Key Benefits
Often Free
ECO4 grant covers full cost for eligible solid wall homes
Big Savings
Save £300-£500/year on heating bills
Warmer Home
Reduce heat loss by up to 45%
Refresh Appearance
Modern render finish transforms your home's look
Weather Protection
Protects walls from rain and frost damage
Long Lasting
25-40 year lifespan with proper maintenance
External Wall Insulation Costs
ECO4 Grant - Often FREE!
Solid wall homes with low income or benefits often get EWI completely free through ECO4
Quick Grant Finder
Answer 3 quick questions to see which grants you may qualify for
Ready to Insulate Your Solid Walls?
Get free quotes from certified installers. Often free with ECO4 grant
Get Free Quotes from Installers