Underwater Inspection & Hull Cleaning in Vietnam

SVC Marine provides underwater inspection and hull cleaning services in Vietnam for shipowners, ship managers, operators, charterers and technical departments requiring diver attendance during port stay, anchorage, drydock preparation or urgent underwater condition checks.

Our work covers diver team mobilization, underwater inspection, hull cleaning, propeller polishing, sea chest and grid cleaning, draft mark inspection, underwater photo/video records, owner-side attendance, class survey follow-up where required and practical reporting to the vessel owner or manager.

For selected assignments, we mobilize qualified local diving teams, follow vessel-side access, attend the operation where required, collect evidence, review visible findings and report practical next actions to the owner or manager.

For underwater inspection, hull cleaning, propeller polishing, sea chest cleaning or diver attendance in Vietnam, please contact shiprepair@svcmarine.com or operation@svcmarine.com.

Underwater Services for Vessels in Vietnam

Underwater inspection and hull cleaning can affect vessel performance, fuel consumption, charterer confidence, class requirements, port clearance and drydock planning. Marine growth, fouled propellers, blocked sea chests, unclear draft marks, damaged rudder areas or suspected underwater contact may require quick diver attendance during a vessel’s port stay or anchorage time.

SVC Marine handles selected underwater service jobs at Vietnamese ports and anchorage areas, subject to port permission, weather, current, underwater visibility, diving safety assessment, vessel condition, class requirement and qualified diving team availability.

Our underwater work is suitable for:

  • Vessels requiring underwater inspection during port stay
  • Hull cleaning before voyage, charter, inspection or performance review
  • Propeller polishing to reduce roughness and fouling
  • Sea chest and grid cleaning
  • Draft mark inspection and cleaning
  • Rudder, propeller and thruster visual inspection
  • Class-related underwater survey attendance
  • Underwater damage check after grounding, contact or suspected impact
  • Drydock planning and pre-docking condition check
  • Pre-purchase or delivery-related underwater condition check

Underwater Inspection

SVC Marine mobilizes qualified diving teams for underwater visual inspection of hull, propeller, rudder, sea chest, bilge keel, draft marks, thruster tunnel and other underwater areas as instructed by the owner, manager, superintendent or master.

Depending on the vessel condition, port permission and diving conditions, underwater inspection may include:

  • Underwater visual inspection by diver
  • Photo and video recording where possible
  • Hull bottom and side shell observation
  • Propeller and rudder area inspection
  • Sea chest and grid inspection
  • Bilge keel and hull appendage inspection
  • Draft mark visibility check
  • Thruster tunnel and tunnel grid inspection where applicable
  • Initial underwater damage observation
  • Owner-side report with visible findings and practical comments

The scope of underwater inspection should be clearly defined before diver mobilization, especially when the job is related to class survey, insurance, grounding, suspected contact or pre-purchase inspection.

Hull Cleaning

Marine growth on the hull can increase resistance, reduce speed and increase bunker consumption. Hull cleaning may be required before charter, long voyage, performance review, inspection or drydock planning.

SVC Marine handles hull cleaning jobs in Vietnam where permitted by local rules, environmental requirements, port conditions and diving safety assessment.

Hull cleaning work may include:

  • Cleaning of selected hull areas
  • Removal of marine growth where permitted
  • Cleaning before charter, inspection or long voyage
  • Cleaning before performance review
  • Before-and-after photo or video records where possible
  • Owner-side attendance and job reporting where required

Hull cleaning remains subject to port permission, local environmental rules and underwater working conditions. Some ports may restrict hull cleaning or require specific approval before work starts.

Propeller Polishing

Propeller fouling and roughness can affect vessel performance. Propeller polishing may improve propulsion efficiency and reduce performance loss, depending on vessel condition, fouling level and operating profile.

SVC Marine mobilizes qualified diving teams for propeller polishing and propeller area visual checks in Vietnam where permitted and technically suitable.

Propeller-related work may include:

  • Propeller blade cleaning
  • Propeller polishing
  • Photo or video record before and after work
  • Rudder and propeller area visual check
  • Visible blade damage observation where applicable
  • Report to owner or manager after completion

If the diver observes visible propeller damage, missing blade material, heavy cavitation marks, rope entanglement or abnormal condition, the owner or manager should review the finding with class, insurer or technical superintendent where required.

Sea Chest and Grid Cleaning

Blocked or fouled sea chests may affect cooling water intake and machinery operation. Sea chest fouling can create overheating risk, machinery alarm, reduced cooling performance or urgent operational concern during port stay.

SVC Marine can mobilize diving teams for external sea chest inspection and cleaning where permitted by port rules, vessel condition and diving safety assessment.

Sea chest and grid work may include:

  • External sea chest inspection
  • Sea chest grid cleaning
  • Cooling water intake area cleaning
  • Removal of visible marine growth where permitted
  • Photo or video record where available
  • Practical update to chief engineer, master and owner where required

Sea chest work should be planned carefully with the vessel’s engine department, especially when cooling water intake, machinery operation or sea suction condition is involved.

Draft Mark Inspection and Cleaning

Clear draft marks are important for cargo operation, draft survey, loading condition verification, port requirements and owner-side reporting. In some cases, draft marks may be covered by marine growth or difficult to read from the waterline.

SVC Marine can handle underwater inspection and cleaning of draft marks where required and permitted.

Draft mark work may include:

  • Forward, midship and aft draft mark inspection
  • Port and starboard side draft mark cleaning where required
  • Photo record for owner, manager or surveyor
  • Attendance during draft survey or cargo operation where required
  • Reporting of visibility issues affecting draft reading

Underwater Damage Inspection

After suspected grounding, contact, floating object impact, propeller vibration, steering issue or unusual machinery alarm, underwater inspection may be required to check visible underwater condition before the vessel continues operation.

SVC Marine can mobilize diver attendance for visible underwater condition checks of:

  • Hull bottom and side shell areas
  • Propeller blades
  • Rudder and rudder stock area
  • Bilge keel
  • Sea chest and grids
  • Thruster tunnel and tunnel grids where applicable
  • Draft marks and underwater fittings
  • Visible coating damage or deformation
  • Rope, net or foreign object entanglement

Any serious structural, class-critical, insurance-related or safety-related finding should be reviewed by the vessel owner, manager, class society, flag administration, insurer and relevant authorities.

Class, Owner and Technical Reporting

Underwater work often requires clear evidence. Owners and managers may need photos, videos, work summary, diver comments and practical recommendations before deciding whether the vessel can sail, requires further repair or should proceed to drydock.

Depending on the assignment, SVC Marine’s report may include:

  • Service attendance summary
  • Underwater photo and video records where available
  • Before-and-after cleaning evidence
  • Observed defect or fouling summary
  • Diver comments and visible finding summary
  • Class or surveyor follow-up where required
  • Recommended next action for owner or manager

For class-related underwater survey, SVC Marine can handle local field attendance, diver team mobilization, evidence collection and practical communication with vessel and survey parties. Final class decision remains with the relevant class society.

Underwater Services During Ship Repair or Drydock Planning

Underwater inspection is often linked to ship repair, drydock planning, pre-purchase inspection or vessel delivery. A short underwater inspection before docking, purchase or delivery may help identify visible damage, marine growth, propeller condition, rudder condition, sea chest condition and repair priorities.

SVC Marine can combine underwater services with:

This is useful when the owner needs to decide whether underwater fouling, visible damage or underwater fittings require urgent action before sailing or before a planned drydock.

Underwater Services for Pre-Purchase Inspection

For vessel buyers, underwater inspection can provide useful visible evidence before purchase decision or delivery. It cannot replace a full drydock survey, but it may reveal important visible issues such as hull fouling, propeller damage, rudder area concerns, sea chest condition, draft mark condition or suspected underwater contact marks.

SVC Marine can handle underwater diver attendance as part of a wider pre-purchase vessel inspection in Vietnam, subject to seller permission, port permission, diving conditions and inspection scope.

For related buyer-side inspection work, please visit our Pre-Purchase Vessel Inspection in Vietnam page.

Underwater Services for Port Captaincy and Cargo Operations

Underwater inspection may become necessary during cargo operation if draft marks are not readable, the vessel reports suspected underwater contact, propeller vibration occurs, cooling water intake is restricted, or cargo operation requires vessel condition confirmation.

SVC Marine can combine underwater field work with port captaincy attendance, cargo operation reporting, draft survey or bunker survey work where required.

For vessel and cargo operation attendance, please visit our Port Captaincy & Bunker Survey Services in Vietnam page.

Vietnam Port and Anchorage Coverage

SVC Marine handles selected underwater inspection, hull cleaning, propeller polishing and diver attendance jobs at Vietnamese ports and anchorage areas, subject to port access, local permission, weather condition, underwater visibility, current, vessel schedule and diving team availability.

Possible working areas include:

  • Hai Phong
  • Cai Lan
  • Hon Gai
  • Cam Pha
  • Nghi Son
  • Vung Ang
  • Son Duong
  • Dung Quat
  • Da Nang
  • Ho Chi Minh City area
  • Cai Mep – Thi Vai
  • Vung Tau
  • Other Vietnamese ports or anchorages subject to case review

For wider port-based repair and technical work, please visit our Ship Repair at Vietnamese Ports page.

Information Required for Quotation

To quote underwater inspection, hull cleaning or propeller polishing properly, vessel and job details must be clear. Diving work depends on port permission, vessel position, weather, visibility, current, diving safety and the exact underwater scope.

Please prepare the following information where available:

  • Vessel name and IMO number
  • Current port, anchorage or ETA
  • Vessel type, flag and class
  • Required underwater service scope
  • Target areas for inspection or cleaning
  • Reason for attendance: cleaning, inspection, damage check, class requirement, performance issue or drydock planning
  • Required attendance date and expected port stay
  • Whether class surveyor attendance is required
  • Agent contact details and port access instruction
  • Any photos, drawings, previous reports or special safety requirements
  • Whether owner-side report, photo record or video record is required

Please send underwater service enquiries to shiprepair@svcmarine.com or operation@svcmarine.com.

Operational Risks in Underwater Work

Underwater inspection and cleaning work can be delayed or restricted by port rules, environmental requirements, weather, underwater visibility, current, vessel movement, safety condition, vessel schedule or lack of access.

Common practical risks include:

  • Port or anchorage permission not granted
  • Strong current or poor underwater visibility
  • Weather and sea condition not safe for diving
  • Vessel schedule too short for proper work
  • Class surveyor attendance not aligned with diver availability
  • Environmental restriction on hull cleaning
  • Photo or video quality affected by water condition
  • Scope unclear before diver mobilization
  • Serious underwater findings requiring class, flag or insurer review

These risks should be reviewed before the diving team is mobilized.

Important Safety and Scope Notice

Underwater inspection, hull cleaning, propeller polishing, diver attendance and underwater maintenance are subject to port permission, local regulation, environmental rules, weather, underwater visibility, current, vessel condition, diving safety assessment and qualified diving team availability.

SVC Marine provides owner-side local marine attendance, diver team mobilization, technical follow-up and reporting. SVC Marine does not replace the diving contractor’s safety responsibility, vessel owner, official ship manager, class society, flag administration, port authority, statutory authority or insurer.

Any class, flag, statutory, insurance or safety-critical decision remains subject to the relevant class society, flag administration, port authority, insurer, ship manager and vessel owner.

How SVC Marine Handles Underwater Inspection and Hull Cleaning

SVC Marine handles underwater service jobs through practical scope review, diving team mobilization, vessel-side follow-up, site attendance and owner-side reporting.

Our process normally includes:

  1. Scope review: We check vessel name, port, ETA, underwater areas, reason for attendance and reporting requirement.
  2. Permission and access check: We review port access, agent details, vessel schedule, launch boat requirement and local working condition.
  3. Diving team mobilization: We mobilize qualified local diving teams based on job scope, location and availability.
  4. Vessel-side follow-up: We follow master, chief engineer, owner, manager, agent and survey parties where required.
  5. Site attendance: Where required, our local marine team attends the job and tracks progress on behalf of the client.
  6. Evidence collection: We collect photo, video, diver comments and completion records where available.
  7. Owner-side reporting: We report observed condition, work completion and practical next steps to the owner or manager.

Why Work with SVC Marine for Underwater Services in Vietnam

SVC Marine is a Vietnam-based marine services company with practical field experience in ship repair, drydock supervision, owner’s representative work, port attendance, vessel inspection and technical services.

Underwater work in Vietnam requires more than finding a diver. It requires vessel access, port permission, safety awareness, clear scope, evidence collection, owner-side reporting and the ability to connect visible underwater findings with repair, drydock, class or operational decisions.

SVC Marine gives shipowners and managers a practical local team in Vietnam. We mobilize qualified diving teams, attend the job where required, follow vessel-side matters, collect evidence, report clearly and connect underwater findings with repair or drydock action when needed.

Our underwater services are suitable for clients who need:

  • Underwater inspection in Vietnam
  • Hull cleaning in Vietnam
  • Propeller polishing
  • Sea chest and grid cleaning
  • Draft mark inspection and cleaning
  • Underwater damage check after suspected contact or grounding
  • Class-related underwater survey attendance
  • Drydock planning or pre-purchase underwater condition check
  • Owner-side photo/video reporting
  • Marine technical follow-up after underwater findings

Related SVC Marine Services

For underwater inspection, hull cleaning, drydock planning, vessel repair and port attendance in Vietnam, SVC Marine also provides the following related services:

Underwater Service Enquiry Contact

For underwater inspection, hull cleaning, propeller polishing, sea chest cleaning, draft mark inspection, underwater damage check or diver attendance in Vietnam, please contact:

SVC Marine Technical Desk
Ship Repair: shiprepair@svcmarine.com
Operations: operation@svcmarine.com
Website: https://svcmarine.com/

Please include vessel name, IMO number, port or anchorage, ETA, required underwater scope, target areas, reason for attendance, required date, agent contact and any class, survey, photo or video reporting requirement.

Frequently Asked Questions

Does SVC Marine provide underwater inspection in Vietnam?

Yes. SVC Marine provides underwater inspection services in Vietnam by mobilizing qualified local diving teams, following vessel access, collecting photo or video records where available and reporting visible underwater findings to the owner or manager.

Can SVC Marine handle hull cleaning and propeller polishing?

Yes. SVC Marine can handle hull cleaning, propeller polishing, sea chest cleaning and selected underwater maintenance work where permitted by port rules, local environmental requirements, weather, visibility, current and diving safety condition.

Can underwater inspection be done at anchorage?

It may be possible depending on port permission, anchorage condition, launch boat access, weather, current, visibility, vessel schedule and diving safety assessment.

Can SVC Marine provide underwater photos and videos?

Yes, photo and video records can be provided where diving conditions and equipment capability allow. Underwater visibility, current and weather may affect image quality.

Can SVC Marine handle class-related underwater survey attendance?

Yes. SVC Marine can mobilize diver attendance, collect photo/video evidence and follow vessel-side and survey-party requirements where required. Final survey decision remains with the relevant class society.

Which Vietnam ports can SVC Marine cover?

Subject to permission and availability, SVC Marine can handle underwater services at ports and anchorages including Hai Phong, Cai Lan, Hon Gai, Cam Pha, Nghi Son, Vung Ang, Son Duong, Dung Quat, Da Nang, Ho Chi Minh City, Cai Mep – Thi Vai and Vung Tau.

SVC Marine Services Ltd

SVC Marine Services is a maritime services company serving shipowners, ship managers, operators, vessel buyers, charterers, cargo owners and trading companies across the vessel and cargo lifecycle.

Our services include ship sale & purchase, drydock supervision, afloat ship repair, owner’s representative services, ship management, shipping & freight forwarding, marine supply and spare parts delivery.

Based in Vietnam with an international structure in the United Arab Emirates, SVC Marine provides practical technical, commercial and operational services for vessel transactions, cargo movement, repair projects, port attendance and fleet operations.