Complete product offering for windows and doors The SIEGENIA GROUP produces and supplies a comprehensive portfolio of products and systems that provide room comfort. While SIEGENIA is one of the world's leading companies for hardware, ventilation and building technology, KFV covers the entire spectrum of modern locking systems for doors. The complete product offering for windows and doors is rounded off by SIEGENIA-AUBI Sicherheits-Service GmbH, which positions itself on the market with products, solutions and services for intruder protection and window repair. Product development at the highest level The group of companies consistently focuses on "solutions inside" - holistic solutions for the modern home and the living of tomorrow, which correspond to the trends of the time and reconcile economical manufacturing with contemporary design and high end-user benefits. In addition to the development of high-quality products, this also includes an openness to country-specific and customised solutions. Fourth generation family business The fourth-generation owner-managed company was founded in 1914 by Wilhelm Jäger, who manufactured small iron and stamped parts for the apparatus engineering industry based in the Siegerland region. Son-in-law Adolf Frank expanded the portfolio from 1919 to include fittings for the German furniture and window industry - a development that was consistently continued by his successors Gerhard Frank (1947 - 1988) and Wieland Frank (1988 - present). After Wieland Frank acquired AUBI Baubeschläge GmbH in 1998, the company merged and changed its name to SIEGENIA-AUBI in 2003, followed by the acquisition of KFV three years later. Today, the group of companies runs a number of production and sales sites at home and abroad. Complete Imprint can be found at: https://www.siegenia.com/en/imprint