Since 1965, Kellenberger Schliesstechnik AG has secured doors, gates, escape routes, windows, safes, mailboxes and more. The team advises, sells, delivers, installs, copies, maintains and repairs everything related to locks and keys.

Kompetente Beratung und schneller Service haben mich vollkommen überzeugt. Kann ich jedem nur weiter empfehlen !

Beanspruchte City-Schlüssel schon oft, für unterschiedliche und auch unkonventionelle Aufträge. Zumsteins finden immer eine Lösung. Kompetentes, freundliches und absolut authentisches Team. Super!

Ich kenne die Firma seit Jahren, und habe oft mit H.Marti und seinen Mitarbeitern zusammen Probleme gelöst. Die Gute Zusammenarbeit war immer eine Freude. Ich kann die Firma nur Empfehlen.

Welcome to KOCH Group AG. With over 300 employees at five locations in Switzerland, we have been providing innovative products, expert advice and tailored services for decades. Our range includes over 100,000 items – from fittings and tools to machines, security technology and factory equipment. Our strengths at a glance: • Range: Over 100,000 items for furniture production, windows, doors, fastening technology, security technology and much more – all tailored to your needs as a tradesperson. • Online shop : A modern shopping experience with easy navigation, detailed product descriptions, CAD data and customisable interfaces for business customers. • Logistics: Efficient processes in our 14,000 m² logistics centre guarantee fast and flexible deliveries – individually tailored to your requirements. • Security technology: Planning, realisation and maintenance of locking systems and access controls by our experienced specialists. • Trade stores: In Bern, St. Gallen and Wallisellen, we offer practical advice, pick-up options and an inspiring exhibition for those interested in building. With the latest technology, dedicated employees and a comprehensive range of services, we create sustainable added value for our customers. Whether at our locations or online – professionals come to KOCH .