Our Services

Everything below the waterline

Cleaning, inspection and light underwater repair — delivered in-water, at anchorage or alongside, without taking your vessel out of service.

01 — Core Service

Underwater Hull Cleaning

Marine fouling increases hydrodynamic drag, cutting speed and driving up fuel consumption and emissions. Our teams clean the entire wetted surface — flat bottom, vertical sides, boot-top and niche areas — returning the hull to a smooth, efficient condition.

We match the method to the level of fouling and the vessel's antifouling coating, so growth is removed effectively without damaging the paint system.

  • Soft & hard fouling removal — slime, weed, barnacles and calcareous growth.
  • Coating-safe technique — brush and pad selection matched to the antifouling type.
  • Waste-capture approach — cleaning designed to minimise release of debris to the water column.
  • NZ MPI standard cleaning — captured, compliant cleaning to New Zealand MPI's Craft Risk Management Standard (Biofouling) for vessels calling at NZ ports.
  • Full documentation — before/after imagery for every zone.

Cleaning methods

  • Diver-assisted cleaning — hand-guided brushes and tools for light-to-moderate fouling and detailed niche work.
  • Mechanical cleaning — rotary brush units, scrapers and pressure jets for moderate-to-heavy accumulation.
  • ROV-supported cleaning — remotely operated units for large flat areas and strong-current conditions.

Recommended cleaning frequency ranges from every few months to annually, depending on trading route, idle time and coating condition.

Why polish the propeller?

  • Lower fuel burn — a smooth blade moves water more efficiently.
  • Reduced cavitation & noise — cleaner surfaces run quieter.
  • Restored thrust — recover lost propulsive efficiency between dockings.
  • Roughness grading — finish measured and reported against recognised standards.
02 — Propulsion

Propeller Polishing

The propeller is one of the most performance-sensitive surfaces on the vessel. Even light roughening or fouling of the blades measurably increases fuel consumption. Our divers polish each blade progressively to a mirror-grade finish.

Propeller polishing is often carried out together with hull cleaning during the same underwater attendance, maximising the fuel-efficiency gain from a single port call.

03 — Inspection

In-Water Survey & UWILD

Underwater Inspection In Lieu of Drydocking (UWILD) lets vessels satisfy survey requirements without the cost and downtime of a drydock. Our divers carry out class-oriented inspection of the hull, rudder, propeller, sea-chests, anodes and other underwater fittings.

Live video is streamed to the surface so superintendents and surveyors can observe and direct the inspection in real time. Every survey is closed out with structured imagery and a written report.

  • General visual inspection of hull, appendages and coatings.
  • Anode condition and cathodic-protection assessment.
  • Thickness & damage checks where required.
  • Class-ready reporting with time-stamped media.

Real-time transparency

Divers communicate live during operations while surface teams watch the video feed — so masters, superintendents and surveyors see exactly what the diver sees, as it happens.

Detailed ETA planning accounts for tidal currents and port schedules, in close coordination with agents and vessel masters to reduce delays and off-hire time.

Our Services

Full-scope underwater & marine services

From compliant cleaning to inspection, blanking and salvage — one accountable diving partner.

NZ MPI Standard Cleaning

Captured, compliant hull cleaning to New Zealand MPI's Craft Risk Management Standard for biofouling — for vessels bound for New Zealand ports.

UWILD

Underwater Inspection In Lieu of Drydocking — class-oriented survey of hull, rudder, propeller and appendages with live video and full reporting.

Sea-Chest Blanking

Fitting and removal of sea-chest blanks to isolate intakes for valve, pump and pipework maintenance, plus grating clearance and refit.

Salvaging

Underwater salvage support — recovery of lost items and equipment, debris and obstruction clearance, and assistance to casualty operations.

Port & Jetty Inspection

Underwater inspection of quays, jetties, piles, fenders and berth structures — condition assessment with photo and video documentation.

ROV Cleaning + Inspection

Remotely operated vehicle cleaning and inspection for large flat areas, deep drafts and strong-current conditions — with recorded visual survey.

How We Work

A planned, transparent operation

From enquiry to close-out report, every attendance follows a disciplined sequence built to protect your schedule.

Enquiry & planning

Share the vessel particulars, port and window. We assess fouling expectations, tides and access, and confirm scope and quote.

Mobilisation & coordination

We align with the agent, master and superintendent on ETA and berth, and mobilise the dive team and equipment to meet the vessel.

Underwater operation

Divers or ROV carry out cleaning, polishing or survey with live video to the surface — safe, methodical and fully observed.

Verification & sign-off

Results are checked zone-by-zone against the scope, with before/after imagery captured throughout.

Reporting & close-out

You receive a structured report with media and recommendations — ready for your records, class and charterers.

Get Started

Need a vessel cleaned or surveyed?

Send us the details and we'll build a plan around your port call.

Request a Quote →