External wall insulation (EWI)
External insulation wraps the building in an insulating layer covered with a finishing render. It removes thermal bridges, improves comfort in summer and winter and raises the property's value, without losing interior space.
We install certified complete systems (polystyrene, rock wool or wood fibre) and guide you through the available French subsidies: MaPrimeRénov', CEE, local grants.
What we do
- Thermal study and choice of the right insulant
- Render or cladding finished systems
- Careful detailing: reveals, sills, balconies
- Support with subsidy applications
Frequently asked questions
What insulation thickness is needed? +
In renovation we usually install 12 to 16 cm to meet subsidy performance requirements. The thermal study confirms it case by case.
Is EWI possible on every building? +
On most, yes. Listed or highly ornamented facades need a specific study; we tell you frankly what is feasible.