SIEGENIA - brings spaces to life.

Window hardware

When installed, SIEGENIA window hardware offers high functionality and security while providing the highest degree of convenience and quality design. From manufacturing to installation, they maximise potential savings by reducing logistics and enabling lean workflows.
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Sliding door hardware

Expansive glass surfaces add freedom, comfort and light to your living space. But they also increase the weight. To ensure that airy design does not make your windows difficult to operate, we develop particularly smooth running hardware.
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Hinges - Dr. Hahn

Dr. Hahn in Mönchengladbach is a leading international manufacturer of door hinges for uPVC and metal doors.
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