External wall insulation, finished properly.
Upgrade solid or hard-to-heat walls from the outside, reduce heat loss and give the property a completely new silicone-rendered finish — without sacrificing internal floor space.

Insulation and weather protection in one system.
External wall insulation uses insulation boards mechanically and adhesively fixed to the outside of the building. A reinforced base coat and silicone finish then protect the system and transform the exterior.
Good EWI work lives in the details: plinths, window reveals, sills, eaves, pipes, fixings and movement points. We plan those junctions before work starts so the insulation is continuous and water is directed safely away.
Key benefits
- Reduced heat loss through walls
- Fewer cold internal surfaces
- No loss of indoor space
- Improved exterior appearance
- Better protection from weather
- Low-maintenance silicone finish
A strong option for solid-wall homes.
It can also suit non-traditional construction and properties where cavity insulation is unavailable or inappropriate. Every building still needs its own assessment.
Survey
We assess construction, substrate, moisture risks, access and junctions.
Design
Insulation thickness, fixings, plinths, openings and finish are specified.
Insulate
Boards are bonded, mechanically secured and carefully detailed.
Finish
Mesh, base coat and silicone finish create a durable new envelope.