From planning to completion, your specialist for diving work and hydraulic engineering.

Our company attaches great importance to responding individually and personally to your wishes. At David Wiederkehr Unterwasserbau AG, the focus is on the customer and their wishes. Our work is not only our profession, but also our passion. We would be delighted to count you among our satisfied customers.

Call us to arrange an appointment: Tel. 043-928 04 14

We are a diving  and hydraulic engineering company. We carry out all work in flowing and standing waters, technical installations, contaminated waters or other liquids, which can only be carried out with special equipment and special training. Our company was founded as a sole proprietorship at the beginning of 2006 by David Wiederkehr, trained bricklayer, professional diver since 1984 with more than 30,000 hours underwater as a working diver in Swiss waters. He is a certified diver ADS to over 360 meters working depth and diving instructor since 1988. Change of company form from sole proprietorship to public limited company 8 February 2008.

We know no limits

 Our many years of experience and know-how make us competent partners in the planning and implementation of your projects. We prevent accidents and health risks through appropriate workplace equipment and clear regulations. David Wiederkehr has been diving accident-free for decades and there have been no accidents involving employees since the company was founded in 2006. In our daily work, we take care of the environment by using energy and resources sparingly Our teams are fully committed to you every day, summer and winter. We would be delighted to count you among our satisfied customers.

The most important facts in brief:

• Home

• About-us

• Diver work

  • Concrete construction

  • Sprengen

  • Stahlbau

  • Cutting

  • Welding

  • Pipework

  • Wastewater treatment plants

  • Controls

  • Recoveries

  • Cleanings

  • Miscellaneous work

• Water engineering

• Fitters

• Media

Contact us, we will be happy to help you.