Since 1907: Innovation – Quality – International Presence
The Gretsch-Unitas Group has stood for excellent building, window, and door technology for over a century: with more than 30,000 products, an international network, and state-of-the-art manufacturing. Get to know us – with figures that speak for themselves.
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Gretsch-Unitas around the world
With over 35 locations worldwide, the GU Group is always close to you – regionally rooted and internationally connected.
Our global sales and service network ensures personal, competent, and reliable support – exactly where you need us.
Select the desired location or country to display the responsible branch or the right contact person with all contact information and service numbers directly on the map.
Our experts are at your side worldwide with tailored solutions and comprehensive advice.
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Global expertise, local proximity
We are represented at over 35 locations around the globe and are thoroughly familiar with the specifics of your region. This enables us to develop solutions that work technically and are tailored to your local requirements – directly on site and globally networked.
We speak your language – in every respect
At Gretsch-Unitas, we understand the specific requirements of your industry – because we have been part of it for decades. Whether building hardware, automatic door systems, or access control solutions – we speak your language, both technically and culturally.
Local proximity – global strength
With GU locations all over the world, we are always close to you – geographically and culturally. Our local teams know the market conditions on site and speak your language – both literally and figuratively.
Solutions, not standards
We do not believe in one-size-fits-all solutions. Instead of offering off-the-shelf global products, we adapt our solutions to local regulations, building standards, and user expectations – without compromising on quality or performance.
From complexity to clarity
We combine technical excellence with in-depth industry knowledge to develop intelligent, integrated solutions – from consulting to implementation. Our goal: to make complexity manageable and provide real added value for our customers.
Systematic projects: References of the GU Group
From residential buildings to international large-scale projects – our technology is used in a wide variety of structures.
Discover where our solutions are used every day – safe, efficient, and durable.
Ocean Heights – Dubai
Gotham Residence „The Smile“ – East Harlem, New York
Perelman Performing Arts Center – World Trade Center, New York
Lantern House – Chelsea, New York
Geosciences of the University of Münster
Louvre Museum Abu Dhabi
Wittelsbacher Castle Museum, Friedberg
DomRömer Frankfurt
Elbphilharmonie Hamburg
Seocho Garak Tower Seoul
Messe Düsseldorf
Royal Hamilius Luxembourg City
BLOX – Danish Architecture Center
Stadtbibliothek Stuttgart
Experimenta Heilbronn
