External Wall Insulation

Solid-wall and hard-to-heat homes lose a lot of warmth through the walls. External wall insulation (EWI) wraps the outside of the building in insulation and a fresh render or cladding finish — cutting bills, warming rooms and transforming the look in one job.

What's included

Insulation boards fixed to external walls
Mesh, basecoat and weatherproof finish
Silicone render or cladding top-coat
Detailing around windows, doors and eaves
Warmer rooms and lower heating bills
Refreshed exterior appearance

We fix insulation boards to the wall, reinforce with mesh and basecoat, and finish in a durable render or cladding. It is ideal for solid-wall properties that cannot take cavity insulation, and it keeps the disruption outside.

External Wall Insulation — frequently asked questions

Who is external wall insulation for?

Mainly solid-wall or non-cavity homes that are cold and expensive to heat. It insulates and re-faces the property at once.

Will EWI change how my house looks?

Yes — for the better. It is finished in fresh render or cladding in your choice of colour and texture.

Does external insulation reduce damp?

By keeping the wall warmer it can reduce condensation and cold-bridging damp, provided detailing is correct — which we ensure.

How thick is the insulation?

Typically 50–100mm depending on the target performance and wall build-up; we specify it at survey.

External Wall Insulation across the UK

We provide external wall insulation for homeowners, landlords and commercial clients across England, Wales and Scotland. Popular areas include:

External Wall Insulation in West Midlands External Wall Insulation in Greater London External Wall Insulation in Greater Manchester External Wall Insulation in West Yorkshire External Wall Insulation in Staffordshire External Wall Insulation in Warwickshire External Wall Insulation in Worcestershire External Wall Insulation in Cheshire External Wall Insulation in Leicestershire External Wall Insulation in Kent External Wall Insulation in Surrey External Wall Insulation in Essex

See all areas we cover →

What's included

External Wall Insulation — frequently asked questions

External Wall Insulation across the UK

Get a fixed quote for your external wall insulation