Subsea is able to draw upon over 50 years commercial diving experience in the region and is uniquely positioned to offer hands on practical solutions for class approved commercial diving services.

Hull Cleaning

Up to 70% of a ships propulsive energy is used to overcome friction, much of this is caused by biofouling buildup on the hull and propellers. Regular cleaning of the hull results in a significant reduction in fuel consumption.

Economic benefits of hull cleaning include:

Reduction in fuel consumption.
Increasing the effective life of anti-foulant coating.
Removing calcareous growth reduces the likelihood of hull corrosion and pitting.
Cleaning fouling grates improves the flow of water to internal machinery.
It is an opportunity to inspect the hull for visible signs of damage.

Subsea hull cleaning capabilities include:

Sea Chests
Rudders
Vertical sides
Flat bottom
Bilge keels

Propeller Polishing

Propeller polishing removes marine growth from propellers which results in better performance and reliability of the vessel and a significant reduction in fuel consumption.

Subsea offers Ruperts grade propeller polishing.

Ship Repairs

Subsea regularly carry out assignments which include:

Wet welding
Aperture blanking
Propeller blade repair and replacement
Bilge keel cropping
Anode replacement (both welded and bolt on)
Crack arrest
Cofferdam installation
Recording of various measurements

24 / 7 Vessel Salvage Services

Subsea salvage experience includes:

Marine emergency response
Wreck refloating and removal
Refloating grounded vessels
Pollution control and environmental care
Underwater bunker/ cargo removal
Underwater surveys and CCTV Inspection
Pumping services
Rectifying of flipped barges
Reclaiming of lost cargo

Service of Hydro-Power Plants and Dams

Inspection, Maintenance and Repair (IMR) of Hydro-Power Plants and Dams including:

Trash racks
Lower outlets
Intakes
Head gates and seals
Reservoir
Penstocks (flooded and dry)
Turbine & shut off valves 8. Dredging in front of units
Trash rack removal and replacement
Blanking on and off intake and outlet gates

Civil Engineering and Marine Construction

Subsea civil engineering and marine construction experience includes:

Installation of pile protection systems
Inspection, maintenance, repair and removal of piles
Design and installation of cathodic protection systems
Diver dredging and removal of silt build up
Concrete breakout and replacement
Outfall clearance
Dockside wall maintenance
Site surveys and detailed technical reports
Underwater welding and cutting
Pier and jetty servicing
Discharge and intake blanking
Lock gate maintenance
Sewage outfall clearance and installations
Anode replacement on dry dock walls/gates

Commercial Diving Services

Qualified HSE and Class Approved