From demolition to
underwater painting

In sewage treatment plants
Nuclear power plants and
Industrial plants

Harbor construction, jetties
and bridges

Restoration of the bank wall

In the mud, reeds
and seaweed

In the drinking water sector

Unterwasserbau Rückbau

Dive into our World

Commercial Diving

CDF Commercial Diving Fankhauser/TAF Taucharbeiten AG is based in Lyss in the Bernese Seeland. Our core business is the constructive underwater construction. We carry out all tasks in running or stagnant water, technical installations, contaminated waters or other liquids, for which only professionals with special equipment are qualified.

We work for the government, the cantons, local authorities, companies and private persons. Flexibility and professionalism are our credo. Mutual trust is essential in our business – because the constructed buildings are only in very few cases directly visible.

We advise and support our clients during every step of a project. From the problem analysis to the planning and the realization we can fall back on long standing experience and sound knowledge. Our equipment is always technologically state of the art and is regularly serviced – because only with top quality equipment it’s possible to do qualitatively first-class work.

The health of our employees is extremely important to us. Accordingly the risk analysis is our top priority. CDF Commercial Diving Fankhauser/TAF Taucharbeiten AG strictly observes the statutory provisions and regulations. Our professional divers are certified specialists with much experience. They regularly have to undergo occupational health checks.

TAF at the SBV Trade Exhibition 2026 at Campus Sursee

We are delighted to announce that we will be taking part in this year’s trade exhibition, held as part of the Swiss Well-Master Association’s (SBV) professional development courses.

From 15 to 23 April 2026, we will be at CAMPUS SURSEE to showcase our specialist solutions in the field of ‘underwater high-tech’. Find out how we use state-of-the-art technology such as ROVs, crawlers and the Hydroclean Pro system to carry out inspections, cleaning and repairs efficiently and without interrupting operations.

Download our flyer We have made our latest flyer available to you for a quick overview of our solutions for local authorities and water suppliers. In it, you will find details of our services, such as underwater inspection and the efficient cleaning of drinking water reservoirs. 👉 Click here for the flyer

A special highlight: On 20 April 2026, our media specialist Jesse Fankhauser will be taking photos and videos right at our stand to capture the atmosphere of the exhibition.

Please note: Please be aware that the exhibition is reserved exclusively for course participants of the Swiss Association of Well Masters and is therefore not open to the public.

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