Reliable complete solution for every building opening.

The best of both worlds for perfect window installation: With the "Perfect" system, the cooperation between the family-owned companies Schüco and GS Stemeseder combines technical innovations and distinct customer benefits - and solves known interface problems at the trade boundaries in the wall opening with technically and visually convincing precision. Precision!

The "Perfect" system developed and patented by GS Stemeseder will in future merge with the AWS 75.SI⁺ Perfect window system and the ASE 60/80.HI Perfect sliding system from Schüco to form a fully integrated unit. The result offers you significant advantages in the construction process from a single source: windows, glazing, solar shading and insect screens, window sills and thresholds can be combined in a completely new way.