Biofouling — barnacles, mussels, algae, and slime — accumulates on a vessel's hull within weeks of deployment. Even a light fouling layer increases hull resistance and raises fuel consumption by 10–15%. Heavy fouling can push that figure above 40%. Regular underwater hull cleaning in Singapore is one of the most direct ways shipowners reduce operating costs and maintain regulatory compliance.

Diver-Assisted and ROV Hull Cleaning

Oceanus Marine operates as a commercial diving company in Singapore offering both experienced diver-assisted hull cleaning and ROV hull cleaning via our SeaWolf system — a remotely operated vehicle (ROV) purpose-built for underwater hull cleaning in Singapore's port conditions. The SeaWolf ROV delivers consistent cleaning coverage across flat hull panels while our experienced divers handle complex areas: bow thruster tunnels, sea chest gratings, rudders, propeller shafts, and hull appendages. Both methods use brushcart cleaning systems with eco-friendly debris capture to prevent biofouling discharge into port waters.

Full-Scope Hull and Vessel Cleaning Services

Beyond the main hull, our hull and vessel cleaning services cover the complete underwater body. This includes underwater propeller polishing and soft cleaning to restore propeller surface finish and efficiency; sea chest grating cleaning and sea chest internal cleaning to maintain unrestricted water flow to cooling systems; bow thruster inspection and tunnel cleaning; and fish net, rope, and entanglement removal from propellers and shafts. Sacrificial anode replacement is carried out in the same dive where required.

Underwater Inspection and Survey Services

All hull cleaning operations are paired with a detailed underwater hull inspection and condition survey. Our underwater photo and video inspection provides high-resolution documentation of hull paint condition, coating breakdown, corrosion, and structural anomalies. We carry out underwater class inspections (UWILD) accepted in place of dry docking, rudder pintle clearance readings, tailshaft readings, and underwater hull paint inspection and paint sample collection. For vessels with exhaust gas cleaning systems, our EGCS borescope inspection service is also available. Underwater CCTV inspection is deployed where detailed internal examination is required.

NZ MPI and Australia Standard Hull Cleaning

Oceanus Marine is experienced in New Zealand MPI standard hull cleaning and inspection and Australia standard hull cleaning and inspection for vessels bound for New Zealand and Australian ports. These requirements mandate defined biofouling levels across all hull areas — including niche areas, sea chests, thruster tunnels, and internal spaces — prior to arrival. Non-compliance results in mandatory in-water treatment or dry docking at the destination port. We carry out the full pre-departure cleaning and produce the documentation required by port authorities in New Zealand and Australia.

Laid-Up Vessel Cleaning and Specialist Services

For vessels in anchorage or cold layup, Oceanus Marine provides laid-up vessel inspection and cleaning to prevent fouling accumulation from reaching critical levels. Additional specialist underwater services in Singapore include overboard blanking and sea chest blanking for drydock preparation, underwater epoxy application for hull repairs, and temporary barrier installation. All work is carried out by our commercial dive team in Singapore under class-approved safety protocols.

📞 Contact Oceanus Marine to schedule underwater hull cleaning, an inspection survey, or to discuss NZ MPI or Australia standard compliance for your vessel.