In 1969 Franz Janssen founded Umwelttechnik Franz Janssen GmbH as a service company for trenchless sewer rehabilitation, inspection and cleaning. Niklas and Anja Janssen became owners and managing directors in January of 2007.

We are a family business and support our customers as a competent and reliable partner with all their needs around maintaining and rehabilitating their sewer grids in planning as well as in execution. First class quality, reliable service and sustainability are our priorities.

We accept any challenge with our wide range of technologies. We developed and patented our own processes and equipment, which are now also being used by other service companies in Germany and abroad. We are driven by innovation. Now and in the future.