Gretsch-Unitas
Gretsch-Unitas (GU Group) is a German company with more than 100 years of experience in window, door, and building technology. Founded in 1907, the group develops and manufactures architectural hardware, locking systems, automatic entrance solutions, access control technologies, and building management systems. With renowned brands including GU, BKS, GU Automatic, and FERCO, the company operates internationally and employs around 4,300 people worldwide. Known for innovation, security, and reliability, GU provides integrated solutions for residential, commercial, and public buildings across global markets.
Partner owned Certificates
Quality Management System Certificate
Environmental Product Declaration
Security Hardware Certification
Our partners
Our
customers
Hear from our customers about their experiences
What sets Luminor apart is their ability to offer solutions and empower you, despite the challenges.”
FAQ
You can find answers to the most frequently asked questions easily and in detail here.
We are a company specializing in the production and installation of architecturally sophisticated aluminum facades, doors, windows, railings and roofing systems. Our own factory, experienced engineering and installation team allow us to turn projects of various scales and complexity into reality.
For each project, we individually develop technical components and select appropriate systems and materials. Based on the specifics of the project, we manufacture the necessary structures in our own factory, and our team ensures their delivery and professional installation.
Yes. It is possible to use both the full service and purchase individual products and materials without installation services.
Yes, our own specialized team ensures professional installation of all structures.
