Ship Repair Services

HMS – Nationwide Ship Repair in Vietnam

HMS – Haiphong Marine Services delivers ship repair and marine services in Vietnam, including hull renewal, engine overhaul, electrical works, underwater services, and drydock projects. With nationwide coverage at all major Vietnamese ports, our Class-certified engineers ensure every vessel remains safe, compliant, and fully operational.

About HMS – Established Ship Repair Company in Vietnam

HMS – Haiphong Marine Services is one of the most recognized providers in Vietnam for ship repair, conversion, and marine services. With extensive experience and a highly skilled technical team, HMS has supported ship owners, ship managers, and ship operators across Vietnam’s ports and anchorages.

Our services are recognized not only within Vietnam but also by international clients, thanks to our Class-certified engineers, modern workshop facilities, and nationwide ship repair coverage. Whether your vessel requires emergency ship repairs in Vietnam, preventive maintenance, or specialized marine technical services, HMS is always ready to deliver Class-compliant services with efficiency and consistency.

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Our Core Ship Repair and Marine Services in Vietnam

HMS – Haiphong Marine Services provides nationwide ship repair in Vietnam, covering all major vessel systems and structures. Our team of Class-certified engineers ensures every project meets IMO standards and Class requirements, from emergency repairs to scheduled drydock projects.

1. Steel Hull Repair and Renewal in Vietnam

HMS specializes in steel hull renewal and structural reinforcement for vessels of all sizes:

  • Deck Plates – Welding or replacement of plates exposed to heavy cargo loads.
  • Shell Plates – Renewal of side, bow, and stern plating affected by wear or collision.
  • Bulkheads – Reinforcement of engine room and cargo bulkheads to restore strength.
  • Hatch Covers – Repair and renewal to maintain watertight integrity.
  • Frames, Stringers & Tank Tops – Replacement of ballast and fuel tank structures.
  • Stern & Rudder Areas – Renewal of stern frames, shaft line structures, and rudder plating.
  • Superstructure – Repairs for deckhouses, bridges, and accommodation structures.
Emergency steel plate repair on bulk carrier by HMS at Hai Phong Port, Vietnam

Emergency steel plate repair on bulk carrier by HMS at Hai Phong Port, Vietnam

2. Main and Auxiliary Engine Overhaul

We carry out complete engine overhaul services in Vietnam, ensuring reliable propulsion and auxiliary systems:

  • Full disassembly and inspection of engine components.
  • Precision machining of liners, pistons, bearings, crankshafts, and camshafts.
  • Calibration of fuel injection systems and turbochargers.
  • Replacement of defective parts with OEM or Class-approved spares.
  • Reassembly, alignment, and load testing in compliance with IMO standards.

3. Electrical Works – Shipboard Power Systems

HMS provides marine electrical services in Vietnam, from diagnostics to rewinding and full system upgrades:

  • Motor rewinding and overhauls of AC/DC propulsion and auxiliary motors.
  • Maintenance of switchboards, circuit breakers, transformers, and bus bars.
  • Generator and alternator service for stable power output.
  • High/low voltage cable replacement and insulation testing.
  • Troubleshooting automation, propulsion control, and cargo monitoring systems.
  • Navigation, deck, emergency, and accommodation lighting installation and repair.
Main engine and pump overhaul during ship repair in HMS workshop, Vietnam

4. Pipeline Repair and Fabrication

Our work covers a wide range of piping systems across cargo, machinery, and deck areas:

  • Fuel Oil and Diesel Pipelines – Fabrication, welding, and renewal of MDO/HFO supply and return lines.
  • Lubrication and Hydraulic Pipelines – Renewal and pressure testing of lube oil and hydraulic lines for propulsion systems, steering gears, cranes, winches, and hatch covers.
  • Steam and Condensate Systems – Repair and replacement of high-temperature steam pipelines, valves, and insulation systems in boiler rooms.
  • Ballast and Cooling Water Pipelines – Fabrication of sea water cooling lines, ballast transfer pipelines, and overboard discharge pipes with Class-approved materials.
  • Compressed Air & Firefighting Systems – Overhaul and testing of air compressor pipelines, CO₂ distribution lines, fire main lines, and emergency fire hydrant systems.

All fabricated and installed pipelines undergo hydrostatic pressure testing, NDT inspection, and Class witnessing, ensuring safe and long-term vessel operation.

HMS engineers renewing ship pipelines at Dung Quat Port, Vietnam – Haiphong Marine Services

5. Deck, Hydraulic, and Cargo Handling Equipment

HMS provides deck machinery repair and hydraulic equipment maintenance:

  • Overhaul of windlasses, anchors, chains, and mooring equipment.
  • Repair and testing of deck cranes, JIB cranes, grabs, and winches.
  • Hydraulic pump, valve, and cylinder maintenance for cranes and hatch covers.
  • Hatch cover rubber renewal, compression adjustment, and container cell guide repairs.

6. Specialist Marine Technical Services

HMS – Haiphong Marine Services provides specialized technical solutions to ensure vessels operate safely, efficiently, and in full compliance with IMO and Class requirements. Our technical teams combine onboard service capability with shore-based workshop facilities to deliver precision repair, calibration, and system upgrades.

  • Turbocharger Overhaul & Dynamic Balancing – Complete dismantling, cleaning, and inspection of turbine blades, bearings, and casings. Precision dynamic balancing is performed using calibrated equipment to restore efficiency, reduce vibration, and extend turbocharger lifespan. Performance testing is carried out under Class supervision to confirm compliance.
  • Cooling & Refrigeration Systems – Repair and maintenance of compressors, evaporators, condensers, and circulation lines. Services include refrigerant recovery, leak testing, pressure checks, and temperature calibration to ensure stable cargo cooling, safe food storage, and reliable HVAC operation onboard.
  • Navigation & Communication Systems – Calibration and functional testing of radar, AIS, ECDIS, VDR/S-VDR, MF/HF, and satellite communication units. HMS technicians ensure accurate readings, proper integration with bridge systems, and compliance with SOLAS and Class requirements.
  • Valve and Pump Overhaul – Maintenance, lapping, and pressure testing of fuel, ballast, bilge, and cargo system valves, along with precision overhaul of centrifugal and positive displacement pumps to restore optimum flow rates.
  • Hydraulic and Pneumatic Systems – Repair and testing of hydraulic cylinders, actuators, control valves, and pneumatic lines for steering gear, hatch covers, winches, and cargo handling systems, ensuring leak-free operation and reliable performance under heavy loads.

7. Underwater Services in Vietnam

HMS delivers Class-approved underwater works in Vietnam, ensuring safety and compliance:

  • Inspection & Survey – UWI, UWILD, ship sale/purchase inspections, UTM hull thickness checks, damage surveys.
  • Hull & Propeller Works – Hull cleaning (UWC) with photo/video surveys, live CCTV feed, propeller polishing to Grade A, removal of ropes/nets, sea chest cleaning.
  • Underwater Repairs & Replacement – Echo sounder and speed log replacement, overboard pipe plugging, welding, and anode renewal.
  • Salvage & Recovery – Retrieval of lost anchors and anchor chains to restore vessel readiness.

With nationwide ship repair in Vietnam and full coverage at every port and anchorage, HMS ensures that wherever your vessel operates, our expert teams can be deployed quickly and effectively. Our commitment to underwater services, marine engineering, and vessel maintenance positions HMS as a trusted partner for safe, consistent operations, and Class-approved operations at sea.

Underwater inspection and cleaning by HMS team at Caimep port, Vietnam

Underwater inspection and cleaning by HMS team at Caimep port, Vietnam

The Importance of Timely Ship Repair

In today’s global shipping industry, time, compliance, and safety are critical factors that directly affect a vessel’s commercial performance. Any delay or improper ship repair in Vietnam can lead to significant risks that no shipowner or operator can afford to ignore.

  • Operational Disruptions: Even a short period of unplanned downtime can cause missed cargo schedules, increased chartering costs, and contractual penalties.
  • Safety Concerns: Technical malfunctions or overlooked damage compromise the safety of the crew, cargo, and the marine environment. Incidents caused by poor vessel maintenance may also lead to reputational damage and insurance complications.
  • Regulatory Pressure: Non-compliance with Class standards or Port State Control (PSC) inspections often result in detentions, fines, or restricted port access. In the Asia-Pacific region, inspections are governed by the Tokyo MOU, which applies strict criteria for vessel seaworthiness.
  • Rising Costs: Small defects, when neglected, quickly escalate into major failures requiring extensive and expensive repairs.

For these reasons, working with an experienced, class-certified ship repair company in Vietnam such as HMS – Haiphong Marine Services is essential. HMS combines extensive experience, Class-approved repair procedures, and a team of class-certified engineers to deliver proven, Class-approved solutions in line with IMO and Tokyo MOU standards. By choosing HMS, shipowners benefit from comprehensive vessel maintenance and marine services in Vietnam that ensure safety, cost efficiency, and uninterrupted operations across all ports and anchorages.

Ensure safe and compliant vessel operations – partner with HMS today.

Why Choose HMS for Ship Repair and Marine Services in Vietnam

HMS – Haiphong Marine Services has established itself as a recognized partner for ship repair and marine services in Vietnam, combining certified technical expertise with modern facilities and nationwide coverage. Over the years, HMS has built long-term partnerships with ship owners, ship managers, and international operators thanks to our ability to deliver safe, Class-compliant, and cost-effective solutions across Vietnam’s ports and anchorages.

Our key strengths include:

  • Certified Expertise: Every project is handled by Class-certified engineers, welders, and electricians approved by leading societies such as NK, ABS, DNV, and Lloyd’s Register. This ensures that all repairs meet international safety and quality standards.
  • Strong Coordination: HMS works closely with local authorities, customs, and port management across Vietnam, securing rapid approvals and minimizing downtime for ship owners.
  • Trusted by Global Leaders: Our services are regularly chosen by top shipping companies including Maersk Line, Synergy Group, MSC… demonstrating our capability to meet demanding operational requirements.
  • Modern Workshop Facilities: Equipped with CNC fabrication systems, turbocharger balancing equipment, electrical testing stations, and precision machining tools, HMS can carry out both onboard repairs and shore-based fabrication with accuracy and efficiency.
  • Operational Methodology: 24/7 readiness, strict safety procedures, and transparent reporting with photo/video documentation are applied to every project.

Thanks to these advantages, HMS has successfully completed numerous ship repair projects in Vietnam, ranging from emergency steel renewals to full engine overhauls and dry-docking works. To explore real examples of how our expertise has helped international ship owners minimize downtime and ensure compliance, visit our Project Update section for detailed insights.

HMS engineer calibrating marine navigation system at Campha Port, Vietnam

Case Studies – Real Projects by HMS

1. Emergency Steel Plate Repair – Hai Phong Port

A bulk carrier sustained hull damage while berthing in Hai Phong Port. HMS immediately mobilized a certified welding team and completed emergency steel plate repair and renewal within 48 hours.

  • Scope: Temporary reinforcement followed by permanent steel renewal.
  • Challenge: Restricted port access and urgent vessel schedule.
  • Result: Vessel resumed operations without delay, Class-approved repair completed.

This case illustrates HMS’s ability to deliver fast-response, safety-compliant, and efficient emergency repairs in busy ports.

Steel plate repair on bulk carrier by HMS at Hai Phong Port, Vietnam

Steel plate repair on bulk carrier by HMS at Hai Phong Port, Vietnam

2. Electrical Motor Rewinding – Da Nang Port

At Da Nang Port, HMS engineers carried out a full rewinding of a main electric motor serving critical cargo handling equipment.

  • Scope: Dismantling, rewinding, insulation treatment, and testing.
  • Challenge: Vessel had limited laytime and needed immediate restoration of power.
  • Result: Motor successfully rewound and tested within schedule, ensuring uninterrupted operations.

This case highlights HMS’s expertise in electrical works and the importance of having certified engineers capable of handling sensitive shipboard power systems.

Marine electrical motor rewinding and shipboard system maintenance by HMS at Da Nang Port

Marine electrical motor rewinding and shipboard system maintenance by HMS at Da Nang Port

Nationwide Coverage – Ports and Anchorages in Vietnam

HMS is proud to provide nationwide coverage for ship repair and marine services, ensuring fast mobilization and compliant marine services support across the country. Our ability to deliver ship repair across Vietnam allows ship owners to receive timely assistance at all major ports and anchorages.

  • Northern Region: Hai Phong Port, Quang Ninh Port, Cai Lan Port, Lach Huyen Port, Cam Pha Port, Nghi Son Port, Vissai Port, Hon La Port.
  • Central Region: Da Nang Port, Dung Quat Port, Chan May Port, Quy Nhon Port, Cua Lo Port, Van Phong Port, Vinh Tan Port.
  • Southern Region: Sai Gon Port, Cai Mep Port, Phu My Port, Vung Tau Port, Thieng Lieng Port.

Wherever your vessel calls in Vietnam, HMS guarantees fast attendance, Class-approved repairs, and reliable marine services nationwide.

FAQ

Q1: Are HMS services Class-approved?
Yes. All repairs and inspections can be carried out under the approval of Class Societies such as NK, ABS, DNV, LR, BV.

Q2: How quickly can HMS mobilize a repair team?
Our engineers are available 24/7 and can be deployed to any port or anchorage in Vietnam within a short timeframe.

Q3: Does HMS provide underwater inspection in lieu of drydock (UWILD)?
Yes. We are experienced in conducting Class-approved underwater inspections, complete with photo and video documentation.

Q4: Can HMS handle both small-scale and large-scale projects?
Absolutely. From minor maintenance tasks to complex overhauls, HMS has the manpower, equipment, and expertise to deliver.