WINTECH controls the entire PVC exterior joinery production process, starting from raw material till getting a finished product. The overall control of the production chain ensures the guarantee for a quality finished product.

WINTECH products are certified according to the standards and requirements in force of the building sector including:

1- AEV Tests: For better air, water and wind sealing

  • For l'AIR : Class A4
  • For l'EAU : Class E7B
  • For le VENT : Class VC3

2 - Thermal tests: for better thermal insulation

Thermal transmission Coefficient of the window is  Uw = 2.2 W/M².K with a glazing coefficient 179 W/M².K