Professional Underwater & Hydro-Technical Works
Specialized partner for demanding repairs, construction and maintenance on water structures.
PROFESSIONALISM & SAFETY AT WORK
Reef d.o.o. is a highly specialized company executing all types of commercial underwater technical and construction works. Due to the extreme diversity of underwater environments and the specificity of hydro-construction, we are accustomed to strict regulations and the highest international safety standards. Our advantage is supreme technical qualification, enabling us to resolve issues on all types of water infrastructure.
Drilling, welding & metal cutting
Underwater electro-arc welding and metal cutting using specialized oxygen-arc technology for steel structure repair.
Lifting heavy loads
Salvaging sunken vessels and lifting massive hydro-technical structures using regulated lift bags with capacities up to 5000 kg.
Site inspection & maintenance
Systematic visual inspections of terrain, pipelines, and dams with precise identification of material deformations.
Sediment pumping
Controlled removal of industrial and silt sediments using hydrodynamic and vacuum pumping from flow systems.
Concrete demolition & repair
Demolition of deteriorated dams or walls using high-power tools and underwater concreting with special chemical mixtures.
Sand and gravel suction
Cleaning river and lake beds using air and water dredge pumps (airlifts) to rehabilitate reservoirs.
Underwater videography/mapping
Technical recording with HD/4K cameras and underwater ROV drones for detailed inspections and investor archives.
High-pressure cleaning
Hydrodynamic cleaning of rust, algae, mussels, and other build-up from ship hulls and hydro-technical barriers.
Depth sounding
Bathymetric profiling, mapping of lake and river bottom profiles, and precise estimation of sediment volumes.
Safety & security on/near water
Reliable physical and technical safety standby with duty diver rescue teams during construction works or sports events.
Preventive inspections
Systematic diagnostics of wear, cracks, and stability on intake towers, dams, and sluice gates to prevent major failures.
Vessel technical inspections
Comprehensive underwater inspections of ship hulls, propellers, rudders, sea chests, grates, and anode protection.
STRICT LEGAL COMPLIANCE AND LICENSING
For the execution of all commercial diving activities, we are fully qualified, licensed, and equipped in accordance with national laws, directives, and international standards. All our commercial divers hold valid medical clearance certificates and hold international commercial diving qualifications certified for work on state water utilities.
Request a Project Consultation
Our project managers will prepare a detailed technical assessment and cost estimation in the shortest possible time.