Diving work

Underwater construction sites require a clear concept – whether renovation or new construction. We offer complete solutions both domestically and internationally. Corrosion, cracks, and breakouts are caused by environmental and mechanical influences. With grouting, LECO coatings, or concreting, we offer the right solution.

Two-component synthetic resins are also increasingly being used underwater. We have been working with LECO resins for over 10 years. Advantage: Longer service life – no need to drain pools or ponds. Tiling and waterproofing are possible underwater. For reliable corrosion protection, clean application is crucial – on concrete, steel, or wood. Applications include power plants, jetties, locks, harbor gates, and ship hulls.

Ropes, nets, trash, or driftwood can damage ship propellers and hulls. With our equipment, we carry out repairs directly on-site. Whether cleaning, service, or coating work – we offer the right solution.

Hydroelectric power plants are vital – however, sedimentation and silting reduce flow rates. Our divers assist with the installation of dams and clean the screens and intake structures. Structural inspections are essential for early detection of damage. Corrosion protection is crucial for protecting turbines, especially in the coarse and fine screen areas.

Underwater work is often essential for tunnel and bridge construction. Our professional divers perform tasks such as foundation stabilization, structural inspection, and sealing work – even under challenging conditions. Regular inspections help detect damage early and prevent subsequent damage. Especially in areas exposed to currents, safe grouting, concreting, and corrosion protection measures are crucial for the longevity of the structures.

For over 20 years, we have been implementing underwater concreting projects nationally and internationally – from pump shafts to concrete foundations for run-of-river power plants. We tailor the processes individually with our clients. Our professional divers have successfully accompanied tunnels, flood control structures, and underground parking garages.

Tunnel boring machines often operate under pressure, supported by compressed air workers and divers. Tool changes and repairs are routine. Caissons allow for dry work underwater. Workers enter them via locks, accompanied by specialists. We are happy to support you with pressurized projects.

Working under prolonged pressure requires complex planning and specialized training. The areas of application are diverse and require lead time. Send us your inquiry – together with our experienced partners, we will develop your customized concept.

Underwater core drilling is used for rehabilitation, inspection, and testing of concrete quality. Planning is important because heavy equipment and hydraulics are involved. They are usually used on bridge piers or power plants and require special caution.

Concrete... Hydraulic wall saws and wire saws are used to replace rails or niches. Our divers attach temporary rails and monitor the cutting process. Wood... Protruding formwork parts are removed with hydraulic chainsaws or NEMO cordless saws. Steel... Sheet piling and iron formwork are precisely machined underwater with cutting tools and NEMO angle grinders. Plastic... Plastic parts can be cut quickly and precisely with NEMO angle grinders or underwater saws.

Underwater welding is complicated by visibility, currents, access, and depth. With highly trained professional divers, we safely perform even demanding welding work. Damaged metal parts are repaired or replaced, and additional corrosion protection extends the service life of steel structures.

Our diving teams remove sediment and silt deposits in ponds, excavations, and bodies of water using pumps, airlifts, or manually. We also professionally vacuum sediment from underwater concrete floors – quickly and efficiently thanks to suitable pumps.

Pipelines are increasingly being laid underwater. Our divers clean the bottom, position, and secure the pipes. The work is usually carried out from ships. We install anchors using holes, clamps, or concrete mats.

Just as above water, auxiliary structures and formwork are erected underwater – usually for grouting or underwater concrete. Steel and wooden structures are used. In well construction, professional divers ensure controlled subsidence and consistent excavation.

Underwater searches often involve locating components or machinery—not just treasure. Visibility, mud, currents, and depth make locating difficult. Our experienced divers recover everything from small objects to large bridge sections or ships using lift bags, lifting cushions, cranes, and pontoons.