Underwater Hull Cleaning at Mumbai Port
Full hull cleaned in the water, vessel stays on hire
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Tell us the vessel, the port and the window. Scoped reply, usually the same working day.
Cleanship Marine provides underwater hull cleaning at Mumbai Port, Maharashtra, working the Indira and Jawahar dock berths, Jawahar Dweep and Pir Pau oil jetties. Commercial dive teams remove slime, weed and shell growth from the vertical sides, flat bottom, bilge keels, sea chests and niche areas with the vessel afloat and on hire — no dry dock, no diversion, no off-hire.
Mumbai Port handles liquid bulk at Jawahar Dweep, general and project cargo in the docks, and serves as the shore base for offshore activity in the Bombay High field. The offshore support fleet working out of here is one of the most regular users of in-water cleaning and survey anywhere in India.
What it gets you
- Hydrodynamic smoothness restored before fouling reaches the calcareous stage that damages coating
- Fuel and emissions penalty from drag reduced without taking the vessel off hire
- Documented condition record for the technical file and the next docking specification
- Sea chests and inlets cleared, protecting cooling water flow
Working conditions at Mumbai
Mumbai harbour is well sheltered behind the mainland and the island, so anchorage work runs through most of the year with the south-west monsoon the main interruption. Harbour water is silty and traffic is dense, so dives are planned around vessel movements with a clear permit agreed with the master and the port. Long waits at the harbour anchorages are routine, and that idle time in warm harbour water is where the heaviest fouling in the region develops.
- Where we work
- Indira and Jawahar dock berths · Jawahar Dweep and Pir Pau oil jetties · Harbour anchorages
- Vessels we see here
- Crude and product tankers · General cargo ships · Offshore support vessels · Cruise ships · Harbour craft and tugs
What we do at Mumbai
- Pre-clean fouling survey to establish coverage, growth type and coating condition before any tool touches the hull
- Brush cart cleaning of the flat bottom and vertical sides, with brush hardness selected against your antifouling specification
- Hand cleaning of bilge keels, rudder, stern frame, thruster tunnels, anodes and the niches a cart cannot follow
- Sea chest gratings and inlet openings cleared of growth and debris to restore cooling water flow
- Diving permission cleared with Mumbai Port Authority and the terminal before mobilisation
- Before-and-after video and stills, with a written report on coating condition and anode wastage
Planning the window at Mumbai
The south-west monsoon governs the calendar at Mumbai Port, roughly June to September. Swell and reduced surface visibility close most open-water work on this coast for the duration, and the weeks either side are unreliable rather than unusable. Because the harbour is sheltered, work here normally runs alongside or at a protected anchorage and can proceed in parallel with cargo operations rather than competing with them for the berth window.
Work is taken at the Indira and Jawahar dock berths, Jawahar Dweep and Pir Pau oil jetties, harbour anchorages, and which of those a vessel ends up at changes the dive plan more than the season does. Teams mobilise via Mumbai (BOM), so give us the ETA as early as you have it — the travel is the flexible part, the approvals and the working window are not.
What we typically find at Mumbai
Liquid and gas tonnage here spends long stretches at the terminal or waiting for a slot, so growth tends to be even and well established across the hull rather than patchy — heavier than the trading pattern suggests, and further along than a speed report alone would indicate.
Shelter is a mixed blessing for a hull. The same calm that makes the port easy to work in is still water, and still water grows fouling faster than an exposed berth does.
Standard scope of work
Included as standard on every underwater hull cleaning attendance, wherever the vessel is. Anything outside it is quoted separately and flagged before mobilisation, never added afterwards.
- Fouling survey
- A pre-clean dive establishes fouling type, coverage and severity, and confirms coating condition so the correct tooling is selected.
- Flat bottom and vertical sides
- Brush cart cleaning of large areas, removing slime, weed and shell growth to restore surface smoothness.
- Niche areas
- Hand cleaning of bilge keels, bow thruster tunnels, rudder, stern frame, anodes and other niche areas where fouling concentrates.
- Sea chests and gratings
- Sea chest gratings and inlet openings cleared of growth and debris to restore cooling water flow.
- Documentation
- Underwater video and stills before and after, with a written report covering coating condition and anode wastage.
How we deliver it at Mumbai
- 1
Scope and vessel details
Tell us the vessel, her particulars, the coating specification and the window at Mumbai. We come back with a defined scope, a crew size and a duration we will stand behind. Where the conditions here will not support what has been asked for, we say so at this stage rather than after mobilisation.
- 2
Permits and approvals
Diving permission is obtained from Mumbai Port Authority, along with terminal approval where the berth requires it and any environmental clearance for in-water work. This is handled by us, not left with the agent to chase.
- 3
Mobilisation to Mumbai
Divers, compressors, brush carts and cameras mobilise via Mumbai (BOM). Where a vessel is also calling at Nhava Sheva, one mobilisation is normally sized to cover both.
- 4
Safety setup and the dive
The vessel is secured for diving — main engine, shaft and thrusters immobilised, sea suctions confirmed shut, permit agreed with the master. Teams work under surface supervision with continuous diver communications and video throughout.
- 5
Report and handover
A completion report covering underwater hull cleaning is issued with before-and-after imagery, coating and anode condition and anything found that you should know about. The findings are discussed with the vessel rather than emailed and forgotten.
Mumbai Port at a glance
- UN/LOCODE
- INBOM
- Port type
- Major Port
- State
- Maharashtra
- Country
- India
- Water body
- Arabian Sea, Mumbai harbour
- Port authority
- Mumbai Port Authority
- Main cargoes
- POL, General and project cargo, Steel, Cruise, Offshore support
- Crew mobilisation
- Mumbai (BOM)
- Services here
- Hull Cleaning, Hold Cleaning and Tank Cleaning
Frequently asked — Underwater Hull Cleaning at Mumbai
Do you provide underwater hull cleaning at Mumbai Port?
Yes. Cleanship Marine works Mumbai Port (INBOM) in Maharashtra, India, covering the Indira and Jawahar dock berths, Jawahar Dweep and Pir Pau oil jetties, harbour anchorages. Teams mobilise via Mumbai (BOM) with the full spread.
Can underwater hull cleaning be done while the vessel works cargo at Mumbai?
Yes, in most cases. The harbour is sheltered enough that divers work alongside while cargo operations continue, and neither holds the other up. The vessel stays on hire throughout, and there is no diversion and no dry dock. We scope against the conditions at Mumbai and tell you honestly whether the window you have is enough.
Do you need a diving permit from Mumbai Port Authority?
Yes, and we obtain it. Diving permission from Mumbai Port Authority, terminal approval where the berth requires it, and any environmental clearance for in-water work are arranged as part of the job rather than left with the agent. The master's permit to work and the immobilisation of machinery are agreed on board before anyone enters the water.
What is underwater visibility like at Mumbai?
Visibility at Mumbai Port is moderate, and it drops further around active bulk handling and after heavy rain, and the south-west monsoon sets the outer limits of the calendar. How the tide and sea state shape the dive plan is set out in full in the working-conditions section on this page.
Which vessels do you carry out underwater hull cleaning on at Mumbai?
Crude and product tankers, General cargo ships, Offshore support vessels, Cruise ships, Harbour craft and tugs — the traffic at Mumbai Port runs to pol, general and project cargo, steel, so those are the profiles we see most. The scope is sized to the vessel, not to a standard package.
How quickly can a team mobilise to Mumbai?
Divers and equipment mobilise via Mumbai (BOM). Give us the ETA and the window and we will confirm what is achievable rather than promise a date we cannot hold. Where the vessel also calls at Nhava Sheva or Dahanu, one mobilisation is often sized to cover both.
What does underwater hull cleaning at Mumbai cost?
It depends on the vessel's dimensions and wetted area, the fouling state found, the coating specification and the working window available at Mumbai. We would rather scope it properly and give you a specific figure than quote a headline rate that changes once the work starts. Send the details and the window at Mumbai and you get a scoped price, usually the same working day.
Underwater Hull Cleaning at Mumbai Port.
Tell us the vessel, her ETA at Mumbai and the window. You get a scope, a crew size and an honest duration — usually the same working day.