For over 80 years, we have been an internationally leading supplier of customised building systems for windows, doors, and façades. Our driving force: forward-thinking innovation in technology and design for the most demanding construction projects worldwide. Our fully integrated approach brings together all key stages under one roof – from extrusion and coating to processing and logistics. This level of control enables us to design and deliver system solutions of outstanding quality, performance, and aesthetics. In partnership with investors, architects, and fabricators, we develop tailored solutions for every project – from straightforward applications to the most ambitious developments. Our focus is on delivering the very best in design, comfort, security, and energy efficiency ...