How long does EWI last?

May 13, 2022 | External Wall Insulation, FAQ

When installed correctly, EWI should last for a minimum of 25 years.

You can, however, expect your system to last much longer. As long as the system is correctly encased in a waterproof final render coating, it will be protected from the weather, and there shouldn’t be any problems.

Westville includes a 25-year guarantee on all installations.