New address as of 25.05.2022: An Groß St. Martin 7, 50667 Cologne, Germany
Engineering office for water and resource management
We manage and supervise projects of water supply, drainage, and wastewater treatment and furthermore offer consulting for municipalities and individual management of your facilities. In doing so, we act competently, creatively and personally.

What drives us
We place a special focus on the protection of nature & the environment and the well-being of people. Therefore, we develop and maintain a sustainable and economical water infrastructure with our dedicated team.
Where we come from
Our managing director Dipl.-Ing. Frederik Maurer founded the engineering office in 2012. He enthusiastically passes on his years of experience in urban water management as well as in municipal operations to the employees of IWR.
What makes us strong
We see ourselves as interdisciplinary problem solvers and enjoy taking on challenges. Concentrated knowledge, reliable partners and sustainable thinking & acting make us strong.
19. July 2021
Marvin Elsbecker: Surveyor for the maintenance of piping systems
Our employee Marvin Elsbecker participated in the four-semester advanced training course…
10. June 2021
Renewal of technical ventilation systems
For the municipal enterprise Stadtentwässerung Böblingen (SEBB), the renewal of technical…
19. May 2021
Further education and training in the team
In order to keep our expertise up to date and to expand it, we attach great importance to…
24. March 2021
Award ceremony of the Aggerverband
In cooperation with the Cologne University of Applied Sciences, Gummersbach Campus, the…
10. March 2021
Development area east of Waldstraße
In Böblingen Dagersheim, the first part of the redensification of the development area east of…
22. January 2021
Concept for the retrofitting of operating rainwater overflow basins with measuring equipment in accordance with the decree ‘Messen an RÜB’
In July 2018, the Ministry of the Environment, Climate Protection and the Energy Sector…
6. November 2020
Electricity tenders SEBB 2021-2022
We have successfully handled the electricity tenders for Eigenbetrieb Stadtentwässerung Böblingen…
2. November 2020
Well rehabilitation Deep Well II, WBV Dörnberg
The well rehabilitation for WBV Dörnberg has been completed successfully. In order to secure WBV…
20. July 2020
Operations Management Ulrichstein – screen replacement Kölzenhain
Within the framework of the Ulrichstein plant management, the “Kölzenhain rake…
17. July 2020
Works outing at Rur Reservoir
It was fabulous! Strictly according to the motto “A man without dreams is like a boat without…