Underwater Diving Services

Classification society in-water CCTV (UWILD) / Visual Inspection
During underwater survey, our divers inspect / ascertain the condition of submerged hull below waterline to identify potential problem areas in order for remedial action to prevent deterioration or further damage.
• In-water class survey in lieu of dry docking (ABS, BV, CCS, DNV, GL, KR, LR, NKK, RINA)
• General condition survey
• CCTV Video Inspection
• Visual Inspection
• Damage assessment survey
• Anti-fouling marine growth analysis
• Inspection of hull, propeller, rudder and other requested areas such as seachests, anodes, ICCP system
Underwater and Above Water Line Hull Cleaning
Hull cleaning is an effective fuel saving method for vessels. It supports lengthened dry docking interval, regains propulsion effectively by removing existing marine growth, minimises cruising time, stops spread of invasive marine organisms and improves effective lifetime of anti-fouling paint system.
Hull cleaning includes all submerged of port and starboard sides, flat bottom, bilge keels and from bulb to sternpost, rudder blades, and sea chest gratings. We also do above cleaning line as well.
Underwater Propeller Polishing, Cutting and Trimming
WSMS has certified professional divers to perform quality technical underwater repair and construction services. Our divers are skilled in every discipline to perform regular inspection and maintenance, as well as occasional repair work and construction jobs on submerged structures and underwater fabrications.
Underwater Welding, Plugging, Blanking, and Patching
Damage and corrosion on the submerged hull shell plating of the ship requires temporary repair such as welding or patching to prevent further deterioration on damaged areas. While blocked or damaged pipe/valves calls for underwater blanking for safety purposes.

Wet underwater welding commonly uses a variation of shielded metal arc welding, employing a waterproof electrode.
Using specially designed cofferdams, defective shell plating sections can be replaced underwater by class approved permanent dry welding. When necessary, custom fabrication of habitats is carried out on site.
Installation of Cofferdam and Anodes
WSMS has certified professional divers to perform quality technical underwater repair and construction services. Our divers are skilled in every discipline to perform regular inspection and maintenance, as well as occasional repair work and construction jobs on submerged structures and underwater fabrications.
Project Management
WSMS has a project team which will assist clients in initiating, planning, executing, controlling, and overall monitoring in underwater projects and consultation.
General and Deep Diving
WSMS has a pool of highly qualified commercial divers with accumulated diving experiences and also the latest equipment to carry out general and deep diving. WSMS also assist in oil spills and recovery processes.
Underwater Repair and Construction
WSMS possesses certified professional to perform quality technical underwater repair and construction services. Our land and underwater team are skilled in every discipline to perform regular inspection and maintenance, as well as occasional repair work and construction jobs on submerged structures and underwater fabrications.