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The company "A. und H. Hunger - Wärme-, Kälte-, Schall-, und Brandschutz" that was founded in 1929 was taken over by Erwin Kantwerg.
A new company called "Erwin Kantwerg - Wärme-, Kälte-, Schall-, und Brandschutz-Isolierungen" was founded.
With a wide range of services and individual solutions, the company Erwin Kantwerg quickly established itself as a successful specialist and reliable partner to its customers.


The company was renamed "Erwin Kantwerg Wärme-, Kälte-, Schall-, und Brandschutz-Isoliertechnik GmbH".


The safety management system was certified.
High quality products and consulting services, but also flexible reaction to the changing needs of the market. The Kantwerg company grew and no longer just operated regionally.


Divided into the following company groups:
Kantwerg Isoliertechnik GmbH
Kantwerg Trockenbau und Brandschutz GmbH
Kantwerg Fertigung von Oberflächenschutz und Vertrieb GmbH


Certification to ISO 9001 for the whole company group.
A product and service range that meets the strictest of requirements. Environmental conservation measures, environmentally-compatible working methods and the use of extensively tested materials.


Expansion of the service range to include planning and realisation of cooling and heated ceiling systems.


Purchase of the building at Hohleichweg 12 in 76189 Karlsruhe. The production of finished parts for dry construction and fire protection and also cooling and heated ceiling systems was expanded.


Foundation of the company "Kantwerg Kühl- und Heizdeckensysteme GmbH", Hohleichweg 22, 76189 Karlsruhe and opening of a branch office in 71282 Hemmingen/Stuttgart, Schauchertstraße 43.

Introduction of the cooling and heated ceiling system "Kantwerg Kombi M 195", which was developed, tested and patented by the company, for use in plasterboard, metal and aluminium ceilings.

Continuous training for our staff guarantees that the solutions supplied by the Kantwerg-group are always state-of-the-art and that the current and future legislation is always taken into consideration.


Production office in France opened on 01.01.2009.
Subsidiary in France
Kantwerg Techniques d'isolations
12A Rue du Pont du Rhin
67470 Seltz


In June 2012 the company founder Erwin Kantwerg passed away.
The company will continue proceedings in the second generation along his lines and his sound principles.


As a result of the constant growth of our company group, Kantwerg Trockenbau und Brandschutz GmbH moved into new premises in Hohleichweg 12. Our employees now have have the necessary space to let their creativity run free.

Comprehensive consultancy, individual solution concepts and on-schedule, customized implementation – these are the key principles of the Kantwerg enterprise group.

This is Kantwerg quality: Efficiency combined with safety!