The Austrian construction industry is defined by its rigorous "Passivhaus" (Passive House) standards and extreme alpine climate demands. As leading manufacturers and exporters, Grandex Door Solutions leverages 16 years of expertise to provide high-performance fixed window systems designed specifically for the thermal requirements of the DACH region. Our windows serve as the structural backbone for energy-efficient commercial and residential developments, offering superior thermal insulation and structural integrity.
Meeting EU thermal regulations with advanced argon-filled glazing.
Designed to withstand heavy snow loads and high-altitude UV intensity.
Utilizing circular supply chains and 1,200+ partner network for green procurement.
At Grandex, quality isn't just a requirement; it's our core product. Our 45-member QA team operates under ISO 9001 certifications, ensuring every fixed window unit meets the demanding structural expectations of Austrian architectural contractors. With 85 specialized R&D engineers, we continue to push the boundaries of glazing technology.
Years of Engineering Expertise
Modern Manufacturing Facility
New Designs Yearly
Looking ahead, we are integrating "Smart Glass" technologies into our fixed window lines, capable of dynamic light transmission control. This aligns with Austria's Smart City initiatives. We are transitioning our manufacturing workflows to fully automated intelligent sorting and assembly, reducing carbon footprints during production while increasing precision for the Austrian market.
Grandex Door
