Underwater Repair and Maintenance
Hydrex is recognized as the world’s leading underwater repair and replacement specialist, offering a versatile and effective service that ensures minimal disruption to vessel operations. With a vast global network of offices and support bases, Hydrex provides fast, reliable service at competitive costs.

The company offers a comprehensive range of services, from external condition inspections and maintenance to highly technical repairs or replacements of underwater equipment and machinery. Hydrex utilizes mobdocks, short for “mobile mini drydock,” a revolutionary technology that allows repairs to be performed below the waterline without needing to take the vessel to shore-based drydocks. This mobile drydock system enables Hydrex technicians to carry out permanent repairs to ship propulsion systems, steel work, and crack repairs in drydock-like conditions.
Routine maintenance, such as worn anode replacements, can be completed without disrupting the vessel’s sailing schedule. Hydrex’s skilled personnel collaborate closely with owners, managers, and supervisors to ensure all work complies with major classification society standards.
Hydrex’s underwater repair services include, but are not limited to:
- Seal repairs
- Thruster repairs
- Propeller repairs
- Hull repairs
- Rudder repairs
- Scrubber repairs
- Custom solutions
All operations can be performed in port or while the vessel is stationary at sea, eliminating the need for drydocking and minimizing downtime. This ensures that normal commercial activities can continue without disruption, helping owners extend drydock intervals and reduce the time and costs associated with traditional drydocking.
