Opening, Moving, Closing, Locking, Securing – the Gretsch-Unitas group offers "Securing technology for you" with its perfectly matching complete product range. The strengths of the GU group do not stand alone – they complement each another mutually. Together, they represent the brand values of Gretsch-Unitas – the core of the securing technology system.
Founding of company BKS
Foreman Adolf Boge and locksmith Fritz Kasten founded the Rheinische Türschließerfabrik in Solingen - BKS - in 1903.
Founding of company Hermann Gretsch GmbH
The name Gretsch-Unitas is derived from the names of the company founder Viktor Gretsch and the UNITAS metalware factory where the successful Unitas Horizontal-Pivot windows were manufactured.
Johann Maus becomes Managing Director and partner
The street in which the group headquarters has been located since the 1970s was named after the managing director and co-partner Johann Maus.
GU registers patent for sliding door hardware
Gretsch-Unitas develops hardware for sliding doors for indoor and outdoor use.
BKS develops round cylinder
The development of the round cylinder in 1938 represented a further milestone in the history of BKS and paved the way for our today's locking cylinders.
BKS brings the panic lock on to the market
Another innovation in Europe was the panic lock in the 1950s, which could be used to open locked doors from the inside.
GU registers patent for Lift&Slide hardware
Ever since Gretsch-Unitas invented the first hardware system for Lift&Slide doors back in 1958, large-format Lift&Slide doors have been right at the top of the architectural wish list of demanding builders.
FERCO joins Gretsch-Unitas
The company FERCO was founded in 1934 and is based in Réding (Moselle). In 1975, Gretsch-Unitas acquires shares in France's biggest manufacturer of architectural hardware.
GU develops multi-point locks
This is the year in which GU SECURY multi-point locks are developed. Some of these are still used in doors today.
Founding of Agena
Founding of Agena GmbH (Organisation and Information Processing company).
BKS joins Gretsch-Unitas
GU group takes over the renowned traditional manufacturer of door technology, including locking cylinders, locks, locking systems, panic locks and system solutions for access control.
BKS introduces electronic products for the door
The first electronic cylinder (ESI) is developed. This technology was used by BKS to develop the electronic locking system as we know it today.
ela-soft joins Gretsch-Unitas
Since 1990, ela-soft has been developing manufacturer-neutral management systems for security, building and communication technology. The successful building management and organisation system, which integrates all the technical subsystems into a central, simple-to-operate interface has put ela-soft firmly on the map as market and technology leader in this sector.
GU Automatic joins Gretsch-Unitas
The company was founded in Rheda-Wiedenbrück in 1977 when it was known as "ats - Automatik-Tür-Systeme GmbH" and has been part of the Gretsch-Unitas group since 2001. Since 2009, the company has been trading under the name "GU Automatic GmbH" and has been based in the town of Rietberg in the district of Gütersloh in the Eastern part of the region of Westphalia since 2015.
GU Logistik is established
Single orders or full truckloads, from placing of the order through to a Just-in-Time service for every customer worldwide.
Implementation of the Group's Corporate Design
GU – the strong umbrella brand: The company divisions window technology, door technology, automatic entrance systems, management systems and their powerful system brands have been brought under one 'long-span roof' – the umbrella brand GU. The technically mature products of the system brands GU, BKS, and FERCO constitute the powerful pillars of complete, trade-spanning systems.
The first lock-integrated access control
GU house entrance door package
– multiple award-winning and VdS-certified.
The future of sliding: the motor-driven Lift & Slide door HS ePOWER completely barrier-free.
Access to greater flexibility: ixalo – the electronic locking system by BKS.
GU system threshold
Floor-flush GU system threshold awarded as product of the year by bfb.