At Nereus Subsea, we provide expert Cofferdam Repair Services for ships. Our team of highly skilled divers is equipped with the necessary knowledge and experience to plan and execute the repairs with precision. We understand the importance of environmental and safety concerns, as well as water management and unpredictable weather conditions. We specialize in repairing the Cofferdam of the ship, ensuring that they are properly assessed and repaired to prevent any future damage. Our Cofferdam Repairs are conducted with the utmost care and attention to detail, so you can rest assured that your ship is in good hands. Contact us today to learn more about our services and how we can help you maintain the integrity of your ship's Cofferdams.

Looking For Underwater Cofferdam Singapore Services?

We are here to ensure that the cofferdam of the ship is well-maintained and working efficiently. One of the key aspects of cofferdam maintenance is ensuring that any water or oil leaks are promptly addressed. We use bilge pumps to remove any accumulated liquids from the cofferdam.

It is also important to reinforce the cofferdams with stiffeners and girders, which will help them withstand any sloshing, vibratory loads, or other loads that may occur during service. We carefully select construction materials for the equipment and fittings installed inside the cofferdam, such as level sensors, vent pipes, and sounding pipes, taking into account their spark-producing properties.

underwater cofferdam

Our Cofferdam Repair Services are designed to meet your ship's specific needs. We have a team of experts who are experienced in underwater cofferdam repairs and can handle any issues that arise. Trust us to keep your ship's cofferdams in top shape, ensuring your vessel is safe and ready for its next voyage.

Contact us for more information or inquiries regarding underwater cofferdam Singapore services and how we can assist you with your cofferdam repair needs.

underwater cofferdam services


  • Between fuel oil tanks which are installed inside the engine room. E.g. diesel oil and heavy fuel oil tank.
  • Between freshwater tank and other engine room tanks adjacent to it
  • Between lube oil tanks such as Auxiliary engine, main engine, or cylinder oil and lube oil storage tanks
  • Between two oil tanks carrying different grades of fuel such as LSFO and HSFO
  • The cofferdam is also installed around the main engine lube oil drain or sump tank, mainly to separate it from other double bottom tanks.


  • A cofferdam is a wall made of concrete or some other material that compartments off sections of a ship for repair, often because some damage occurred to the ship and it needs to be closed off until it can be repaired.

  • The cofferdam is equipped with manholes for inspection, as well as a sounding pipe to prevent leakage

  • By keeping the cofferdam dry, we can detect leakage in a ship's hull.
Cofferdam repair services


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