Asanti Shores certified commercial diving team, underwater hull cleaning and subsea inspections

Marine Capabilities

Underwater Services

Certified Commercial Diving, Hull Cleaning & Underwater Inspections

Optimizing vessel hydrodynamics, ensuring hull integrity, and providing accredited underwater survey documentation in Nigerian ports.

Request a Quote for this Service Direct Ops Liaison

Service Overview

Marine biofouling increases hull drag, spikes fuel consumption, and can obscure structural damage beneath the waterline.

Asanti Shores Limited provides professional commercial diving and underwater engineering services to assist ship operators in maintaining hydrodynamic efficiency and meeting class survey requirements.

Our team deploys experienced, certified commercial divers equipped with hydraulic cleaning gear, high-definition underwater video systems, and calibrated non-destructive testing (NDT) instruments.

Comprehensive Scope of Work

Underwater hull cleaning using hydraulic rotary brush systems

Propeller super-polishing to Rupert scale A standard for improved fuel economy

Class In-Water Survey (IWS) in lieu of dry-docking (UWILD) with live CCTV monitoring for class surveyors

Underwater damage assessment, rudder, sea chest, and bilge keel inspections

Sea chest blanking, overboard plugging, and valve isolation for in-water repairs

Zinc anode condition inspection and underwater sacrificial anode replacement

Underwater cutting, cold repairs, and coffer-dam installation support

Operational Capabilities

Rapid-response diving teams stationed in Lagos with mobile diving spreads
Surface-supplied air diving systems conforming to international commercial diving standards
Live two-way diver communication and digital video recording for vessel superintendent review
Detailed written technical inspection reports with pre- and post-cleaning photographic evidence

Standards & Regulatory Rules

IMCA (International Marine Contractors Association) commercial diving safety principles
Certified surface-supplied diving gear with bail-out redundancy
Accredited non-destructive ultrasonic thickness measurement equipment

Information Required for Quotation / Mobilization

To provide an accurate, fast turnaround proposal, our operations team requests the following details:

Vessel dimensions, draft, and current mooring or anchorage location

Water clarity and tidal conditions at the berth or anchorage

Scope of service requested (cleaning, inspection, blanking, or survey)

Vessel propulsion isolation lock-out/tag-out safety confirmation prior to diver entry

Geographic Coverage in Nigeria

Lagos Port Complex, Tin Can Island berths, Lagos outer anchorage, Escravos, and Port Harcourt/Onne waterways.

Delivered Projects & Field Proof

Lagos Coastal Waterways

Marine Wreck Removal & Channel Clearing

Controlled cutting, rigging, and heavy-duty crane removal of derelict steel vessel wreckage obstructing commercial navigation channels.

Defense Jetty, Marina / Lagos Lagoon

Sub-Sea Diver Deployment & In-Water Inspection

Class-certified commercial diving team mobilized for underwater hull survey, sea chest clearing, and structural assessment.

Offshore Approach & Inland Waterways

Sunken Hull Salvage & De-watering Operations

Emergency salvage, patching, and controlled refloating of partially submerged barge hull utilizing submersible dewatering pumps and flotation bags.

Lagos Anchorage / Quayside Berths

Commercial Vessel Hull Cleaning & Bio-fouling Removal

Hydraulic rotary brush cleaning of marine growth, barnacles, and fouling on commercial merchant vessel hull plates to restore hydrodynamic efficiency.

Frequently Asked Questions

Yes, subject to port authority approval, good water visibility, and coordination with terminal operators to ensure main engine turning gear and bow thrusters remain locked out.

Direct Engagement