MARINE
REPAIR AND MAINTENANCE

SERVICES

30% Faster
Turnaround Time
vs. OEM
Benchmark
30% Cost Reduction with Technology, Maintaining Reliability until the next Overhaul
Timely Deployment Manpower (Access to Multiple PRs & CDC) and On-Time Delivery of Spare Parts
Optimize
Spares List
to Reduce Cost
with
Technology
Comprehensive
Support On-site,
Off-site, Remote,
including
Riding Squad
12-Month
Workmanship
Warranty and
Standard 6 Months
Warranty on
Spare Parts
Access to Specialized
Tools such as Chris
Marine Cylinder Liner
Honing, Valve Seat
Machining Tool
Adherence to
OEM Standards
and Access to
Genuine
Spares Parts
Detailed
Work Completion
Report

Ship maintenance services involve the inspection, servicing, repair, and overhaul of critical marine systems to ensure vessel safety, reliability, and operational efficiency. In the complex and demanding marine industry, effective ship repair and maintenance are essential to minimizing downtime, meeting regulatory requirements, and extending the lifecycle of onboard machinery.

The four main types of ship maintenance, including preventive maintenance, predictive maintenance, corrective maintenance, and condition-based maintenance, form the foundation of efficient vessel operations. Neptunus delivers all four through a combination of technical expertise, advanced monitoring systems, and hands-on execution.

Neptunus stands out with its strong technical capabilities and extensive industry experience, offering services that enhance the longevity and performance of marine machinery. With a team of 27+ skilled engineers and technicians, we handle everything from routine inspections to complex overhauls across a wide range of vessels, including cargo ships, oil tankers, and cruise liners operating in harsh and demanding environments.

We provide timely and dependable support whether your vessel is docked or at sea. Our marine repair services cover overhaul, maintenance, and installation across key ship systems such as engines, gensets, auxiliary engines, gearboxes, propulsion systems, bow thrusters, and propellers. Every project is managed with a personalized approach, where dedicated project managers ensure tailored solutions, technical precision, and minimal operational disruption.

With a strong global presence across India, South Asia, the Middle East, Europe, and Africa, Neptunus ensures that expert marine repair and maintenance support is always accessible, delivering consistent quality and reliability wherever your vessel operates.

Gallery

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The Challenges of Vessel Owners in the Marine Industry

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Why choose Neptunus?

3 Decades of
Service Excellence
Engine & Propulsion
End-to-End Solutions
2500+ Sucessfull Projects
Delivered Worldwide
Trusted by 100+
Satisfied Customers
Dedicated Experts to
Address Emergencies

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Testimonials

TESTIMONIALS

Port operations and marine services company in India

AVP-Maintenance Management

Neptunus has been our preferred partner for the Niigata engine and z-peller. They are Niigata’s authorized representatives and deliver great service with quick response, excellent workmanship, and customer-centric approach. Read more

One of the biggest offshore supply vessel and tugboat operator globally, HQ -Denmark

Senior Group Manager

Rendering valuable assistance to the Svitzer Head Office’s Operation / Technical / Newbuilding Departments in completing satisfactory Svitzer Fleets / main engine propulsion TCO estimations over a given Life Cycle Cost (LCC) period. Highly competitive.

Qatar's biggest
supply vessel operator

VP‑Ship Management

First I would like to complement the team for the excellent work they have done on our vessel. We will surely look positively on this and will come back.

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Why Choose Neptunus For Ship Repair And Maintenance Services?

Decades of
Expertise

With 20+ years of experience in the Read more

Significant Downtime Savings

By leveraging our expertise and employingRead more

Remote Support Excellence

Recognizing the time-sensitive nature of Read more

Genuine and Optimized Spare Parts

Neptunus maintains a comprehensive Read more

Utilization of Advanced Technology

We use the latest techniques and Read more

Marine Repair And Maintenance At Neptunus

At Neptunus, we offer a complete range of maintenance services tailored to ensure the optimal performance and reliability of your ship’s systems. Our expert team of engineers and technicians is equipped to handle repair, overhaul, inspection, troubleshooting, and emergency repair services with 6 months of warranty for the following ship systems:

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Beyond Repair and Overhaul for Your Marine Ship

Neptunus is committed to forging lasting strategic partnerships with our clients, placing a strong emphasis on long-term goals that transcend temporary projects. Our approach revolves around tailoring Asset Reliability Solutions to meet their distinct requirements, ensuring operational excellence through reliable, cost-effective, and sustainable methodologies. We embrace cutting-edge technologies to tackle maintenance challenges head-on, consistently staying ahead of the curve.

Through the implementation of our proprietary dual-class (ABS and IRS) approved Engine Condition Monitoring System and our comprehensive Oil Quality Management Systems, which includes real-time Oil Condition Monitoring System and a continuous Kidney Loop Filtration System, we have delivered the following tangible benefits to our valued clients:
If you are looking to achieve similar goals for your company, book a “Discovery Call” with our experts to understand how we can help you.

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Marine Assets, Repair and Overhaul Services by Neptunus

Ship Machinery Maintenance, Repair and Overhaul Services by Neptunus

Engine Brand Maintenance, Repair and Overhaul Services by Neptunus

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FAQs

Ship maintenance services include inspection, servicing, repair, and overhaul of critical systems such as main engines, auxiliary engines, propulsion systems, gearboxes, generators, and safety equipment. It also covers cleaning, calibration, spare part replacement, and performance testing to ensure the vessel operates efficiently, safely, and in compliance with maritime regulations.
Ship maintenance frequency depends on vessel type, operating conditions, and regulatory requirements. Routine inspections are typically conducted every 6 to 12 months, while major overhauls are scheduled based on running hours, equipment condition, and classification guidelines. Condition-based monitoring can further optimize maintenance intervals and reduce unnecessary servicing.
The duration of ship repair or overhaul varies based on the scope of work, type of equipment, and availability of spare parts. Minor repairs can often be completed within port stay timelines, while major engine or propulsion overhauls may take several days to weeks, depending on complexity and planning.
The cost of ship repair and maintenance depends on factors such as vessel size, equipment condition, scope of work, and spare parts required. Costs can vary significantly between routine servicing and major overhauls. Implementing condition-based maintenance and proper planning can reduce overall maintenance expenses by up to 30 percent.
Ship repair services include engine overhaul, propulsion system repair, gearbox servicing, auxiliary engine maintenance, genset repair, bow thruster servicing, and propeller maintenance. These services are designed to restore performance, improve efficiency, and ensure reliable vessel operations under demanding marine conditions.
Yes, emergency ship repair services are available for urgent breakdowns and critical failures. Rapid-response teams can be deployed at ports or offshore locations to carry out immediate repairs, minimizing downtime and preventing operational disruptions.
Ship maintenance services cover a wide range of machinery, including main engines, auxiliary engines, generators, propulsion systems, gearboxes, bow thrusters, and propellers. These systems are critical for vessel performance, power generation, and maneuverability
You can request ship maintenance services by contacting the service provider through their website, email, or direct call. After understanding your requirements, the technical team evaluates the scope of work and provides a tailored solution, including timelines, manpower, and cost estimates.
Yes, ship repair and maintenance services are offered across major ports and offshore locations globally. Service providers typically operate in key maritime regions such as India, the Middle East, Europe, Africa, and Southeast Asia, ensuring timely support wherever vessels are located.
Condition-based maintenance is a data-driven approach that monitors the real-time health of ship equipment using sensors and diagnostics. Maintenance is performed only when needed, based on actual equipment condition, helping reduce downtime, prevent failures, and optimize maintenance costs compared to traditional scheduled servicing.
This page has been technically reviewed by the engineering leadership team at Neptunus Power Plant Services Pvt. Ltd.
Last Updated: April 2026

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