Marine Civil Construction

We deliver turnkey underwater civil construction solutions aligned with engineering frameworks, ITP requirements, and diving safety regulations.

Services include:

• Seabed and structural surveys

• Cofferdam and caisson installation

• Underwater concreting, grouting, block placement

• Welding, fabrication, and cutting of submerged structures

• Cathodic protection systems (anodes & ICCP)

• Scour protection with grout bags, rock dumping, mattresses

• Piling and sheet pile installation support

• Geotextile placement, turbidity curtains, and silt control

• Clearing submerged obstructions and debris

Bridge & Jetty Inspection

Specialized underwater inspection and maintenance services for bridges, piers, and jetties to ensure safety, stability, and longevity.

Services include:

• Visual & tactile inspections

• Ultrasonic thickness testing

• Crack detection (MPI & dye penetrant)

• Underwater photography & videography

• Scour assessment & sediment monitoring

• Pile wrapping, grouting, and remediation

Intake & Outfall Systems

Inspection, maintenance, and cleaning for desalination plants, power stations, and industrial facilities.

Services include:

• Pipeline inspection with HD video & sonar

• Marine growth & debris removal

• Sediment & sludge clearance

• Leak detection & structural repair

• Emergency response & rapid mobilization

Marina & Mooring Support

Diving support for yacht clubs, commercial moorings, offshore terminals, and fuel depots.

Services include:

• Mooring inspection & surveys

• Installation & replacement of systems (anchors, blocks, helix moorings)

• Preventive maintenance & anode checks

• Emergency mooring repairs & stabilization

Underwater Concrete & Steel Repairs

Durable underwater repair solutions without dewatering or operational downtime.

Services include:

• Pile jacketing & encapsulation systems

• Crack injection & leak sealing

• Rebar replacement & reinforcement

• Certified underwater welding & cutting

• Cathodic protection retrofits & anode installation

Nuclear Diving Solutions

Precious Marine provides highly specialized nuclear diving services that support the safe and efficient operation of nuclear power facilities. Instead of draining entire reactor or cooling pools—a process that is costly, time-consuming, and exposes workers to high radiation—our certified commercial divers carry out underwater inspections, repairs, and maintenance directly in the filled environment.

Key Capabilities:

• Underwater Inspections – Visual, video, and NDT inspections of reactor pools, cooling ponds, and water-filled systems.

• Repair & Maintenance – Underwater welding, cutting, and sealing of structural components without interrupting operations.

• Sediment & Debris Removal – Controlled cleaning and clearance of silt, deposits, and foreign materials from pool basins.

• Radiation Safety Protocols – Divers trained and equipped with specialized PPE and radiation monitoring systems to ensure compliance with strict nuclear safety regulations.

• Operational Integrity – Minimizing plant downtime and ensuring continuous, safe performance of nuclear systems.

IRM – Inspection, Repair & Maintenance

Comprehensive IRM services for offshore, civil, and marine infrastructure.

Capabilities include:

• Bridge construction & demolition

• Dredging & seabed stabilization

• Quay walls, breakwaters, & harbor maintenance

• Navigation & mooring system installation

• Salvage & recovery operations

• Coral management & environmental protection

• UWILD & class surveys, NDT inspections, UTM, MPI, cathodic checks

• Real-time monitoring, QA documentation, and certification

Other Specialized Services

Alongside our core marine expertise, Precious Marine delivers a range of specialized solutions that support civil, marine, and environmental projects with efficiency and reliability.

• Dewatering & Overpumping – Design and implementation of temporary bypass systems for stormwater, sewage, and infrastructure maintenance. Our engineered solutions ensure uninterrupted flow, prevent environmental hazards, and maintain operational continuity.

• Marine Pontoons – Professional installation, anchoring, and maintenance of floating pontoon systems using chain, pile, or diagonal mooring methods. We deliver stable and durable solutions tailored to site conditions and environmental factors.

• Cables, Floaters & Marine Barriers – Deployment of specialized cable floats, buoyancy systems, and marine barriers to enhance operational safety, security, and dredging efficiency in offshore and coastal environments.

• Swim Line Installation & Maintenance – Installation of competitive and recreational swim lines for pools and open-water facilities, with proper tensioning, UV-protected storage, and routine inspection for long-term durability.

• Environmental & Met-Ocean Monitoring – Supply and deployment of buoys, sondes, water quality sensors, and navigation aids, providing accurate, real-time monitoring for environmental assessments and safe maritime navigation.