Underwater Work & Survey

Based in Madagascar, Underwater Work & Survey operates as a specialized provider of commercial diving and subsea technical services. The company functions within the Indian Ocean region, a critical corridor for global maritime trade, supporting the logistics and shipping industries with maintenance and inspection solutions that allow vessels to remain afloat during service. Its strategic headquarters in Toamasina enables the organization to deploy diving teams to major ports across the island nation, servicing international fleets that traverse the routes connecting Africa, Asia, and the Middle East. The operational core of Underwater Work & Survey revolves around underwater hull maintenance, a vital process for sustaining vessel efficiency. Over time, marine biofouling such as barnacles, tubeworms, and algae accumulates on ship hulls, creating drag that increases fuel consumption and reduces transit speed. The company addresses this by conducting comprehensive hull cleaning and propeller polishing. Using specialized hydraulic brushing systems and polishing equipment, divers remove growth to restore hydrodynamic performance while carefully preserving the vessel’s anti-fouling paint systems. Beyond routine cleaning, the company plays a significant role in technical assessment through underwater inspections in lieu of drydocking. These surveys are essential for shipowners and operators who need to verify the structural integrity of their assets without the disruption of dry-docking. Divers employed by the firm capture high-definition video and photographic data of critical underwater components, including rudders, sea chests, bilge keels, and hull plating. This data is utilized by classification societies to certify seaworthiness and by technical managers to plan future maintenance cycles. The entity also provides underwater repair and salvage support capabilities. Technical teams are equipped to perform underwater cutting and welding (wet welding) to address structural damage or modify hull fixtures. They also execute anode replacement to ensure cathodic protection systems remain effective against corrosion. By maintaining a mobile operational posture capable of reaching ports such as Ehoala, Mahajanga, and Antsiranana, Underwater Work & Survey acts as a key support mechanism for the regional maritime infrastructure, enabling merchant vessels, tankers, and offshore units to address mechanical and structural issues directly at their port of call.