NSD | Nick Segredakis Diving ltd

Underwater services

ABOUT OUR COMPANY

Nick Segredakis Diving Ltd. (NSD Ltd.) was established in 1991 and has since specialized exclusively in commercial underwater operations.

The company, provides underwater services, to ships and offshore units, in all Greek ports and numerous locations worldwide. Our services, encompass comprehensive vessel hull maintenance, including underwater inspections, hull cleaning, propeller polishing, and the replacement of anodes and sensors. We also perform technical works, such as insert welding, rudder and propeller repairs, and the plugging of inlets and outlets to facilitate piping repairs. Every project, is supported by specialized solutions, tailored to the specific requirements of each client.

CLASSIFICATIONS

NSD Ltd. is approved by most major classification societies, for its services and holds the distinction of being the first company in Greece, with a Bureau Veritas approved method and certified diver welders, for performing permanent in-water repairs.

A team of divers can be rapidly mobilized to any required location in Greece, or worldwide, to provide emergency and routine services, even on a very short notice.

The company owns and operates, the 22-meter diving support vessel “ELPIDA”, which is fully equipped, to handle all types of underwater operations.

APPROVED REPAIR METHOD

NSD Ltd. is proud to announce its successful compliance, with the relevant regulations for the repair of underwater welded structures, having been awarded Attestation Number LPR.410.00.075 by the Bureau Veritas classification society.

Following this approval, NSD Ltd. became the first Diving Company in Hellas, to be certified by an IACS member, to perform permanent underwater repairs to a ship’s hull, while the vessel is afloat.

Why choose us?

We possess 30 years of experience in commercial underwater operations.

Experienced Team

Full Service

Fast Responce

Secure Results

Our
Services

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Hull Cleaning

Marine fouling increases drag, resulting in reduced vessel performance. This decrease in performance translates to lower speed, less power, and higher fuel consumption.
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Propeller Polishing

Propeller surface roughness reduces hydrodynamic efficiency, impairing vessel performance and increasing fuel consumption. In fact, a poorly maintained propeller can cause a power loss of up to 5%.
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Inspections & Measurements

Underwater inspections and measurements approved by classification societies.
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Propeller & Ropeguards

Repair of propeller blades, installation and repair of rope guards and rope cutters.
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Technical

Approved Welding, NDT (Non Destructive Testing) and Cofferdam Solutions
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Equipment

Examples of our specialized equipment and tools.

Our Job

CofferDam Technique

This brief animation demonstrates how permanent, dry-dock-equivalent repairs can be carried out on vessels afloat using the CofferDam technique.
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Recommendations

Certifications

Latest News

Underwater diving services

Underwater diving services successfully perform afloat hull repair

Professional underwater welding services restore vessel integrity and maintain operational readiness Reliable underwater diving services play a vital role in maintaining the operational efficiency and safety of state and commercial vessels. A recent underwater intervention demonstrates how experienced commercial divers can quickly resolve critical structural hull issues afloat and prevent costly dry-docking downtime. Following an…

Underwater diving services

Underwater diving services successfully remove oil boom and chain from a commercial vessel propeller

Professional underwater diving services restore safe vessel operation Reliable underwater diving services play a vital role in maintaining the operational efficiency and safety of commercial vessels. A recent underwater intervention aboard a commercial tug, demonstrates how experienced commercial divers can quickly resolve critical underwater obstructions and prevent costly downtime. Following a request from the vessel’s…

Underwater services

Restoring a floating dry dock in Syros: NSD | Nick Segredakis Diving ltd underwater services’ 2018 underwater repair operation

A complex underwater recovery project at Neorion Shipyard In 2018, during the revival of the historic Neorion Shipyard in Syros, one of the shipyard’s floating dry docks, Violando, faced a critical structural challenge that required immediate and highly specialized intervention. To preserve the dock and prepare it for a safe return to service, the structure…