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MARINE ASSET MAINTENANCE

Expert marine asset maintenance across Australia, including diving, repairs, inspections, and preventative care. Trusted by port operators, government, and infrastructure managers.
Polaris Marine Group provides end-to-end marine asset maintenance services to protect, preserve, and extend the operational life of critical maritime infrastructure. Working with port authorities, construction firms, asset managers, and government agencies, we deliver structured and reactive maintenance programs that are tailored to the unique demands of marine environments. With decades of experience maintaining wharves, jetties, pontoons, seawalls, vessels, moorings, and submerged assets, our team is known for its ability to deliver practical, long-term solutions—whether the goal is to meet regulatory compliance, reduce lifecycle costs, or improve safety and performance. We operate along the Australian coastline and inland waterways, responding quickly to both routine and urgent maintenance requirements.

Comprehensive Maintenance for Marine Infrastructure

Harsh conditions make marine assets vulnerable to degradation from saltwater corrosion, tidal movement, biofouling, impact damage, and general wear. Left unchecked, these issues can affect performance, create safety risks, and result in costly emergency repairs. Polaris Marine Group takes a proactive approach to asset care, offering maintenance programs that are designed around inspection, prevention, repair, and documentation. We maintain structures such as piers, dolphins, pile-supported platforms, fenders, and loading equipment. Our work often includes marine coatings, concrete patching, pile jacket installation, anode replacement, and mechanical maintenance. Each maintenance program is carefully scheduled to reduce downtime and disruption, particularly in live port, commercial, or industrial environments.

Diving-Led Subsurface Maintenance

Polaris Marine Group has an in-house team of commercial divers trained to carry out a wide range of underwater maintenance works. These services are essential for submerged assets like pile foundations, footings, water intake structures, moorings, and underwater cables. Our diving teams conduct inspections, identify corrosion or damage, and carry out underwater cleaning, coating, and component replacement. These services are often delivered in conjunction with topside teams to provide a complete asset maintenance solution—above and below the waterline. By combining surface and subsea services, we reduce the need for third-party contractors and provide seamless coordination.

Preventative Maintenance Planning

We work closely with asset owners to develop preventative maintenance strategies that keep marine assets in optimal condition while reducing the risk of unplanned outages. Our process begins with condition assessments and risk analysis, followed by scheduled maintenance activities that are planned around seasonal factors, site access, and operational priorities. Preventative programs may include protective coating systems, sacrificial anode renewal, fender replacement, joint sealing, and structural integrity monitoring. Each program is backed by detailed record-keeping and reporting to help clients track the condition of their assets over time and plan ahead with confidence.

Repairs and Remediation

When marine assets begin to show signs of structural degradation or performance issues, Polaris Marine Group is equipped to respond with timely repair services. Whether caused by age, impact, storm damage, or corrosion, deterioration can often be reversed through targeted remediation work. Our teams carry out concrete and steel repairs, pile wrapping, structural reinforcements, bolt and bracket replacement, timber restoration, and realignment of components. Repairs are always scoped in close consultation with the client and, where needed, consulting engineers. We pride ourselves on clear communication and minimal disruption to surrounding operations.

Routine and Emergency Callouts

In addition to structured maintenance programs, Polaris Marine Group provides reliable routine servicing and 24/7 emergency callouts for marine asset issues. From a damaged pontoon or broken fender to storm debris and underwater blockages, our crews can mobilise rapidly with the equipment and expertise to resolve problems before they escalate. This responsiveness is especially valued by port operators, vessel operators, and marine infrastructure managers who need safe, immediate solutions when the unexpected occurs. Our teams are experienced in working under pressure and in challenging conditions.

Vessel and Mooring Maintenance

In addition to fixed marine infrastructure, Polaris Marine Group also services commercial vessels and mooring systems. This includes hull maintenance, deck equipment servicing, fendering checks, and mooring buoy upkeep. We support both private and commercial fleets, providing routine inspections, antifouling, and condition assessments. Our mooring maintenance services ensure that anchoring systems remain safe, compliant, and operational throughout their lifecycle. This includes chain inspections, rope replacement, shackle servicing, and seabed condition evaluation. Our work helps reduce the risk of breakaways, collisions, or structural stress on vessels and pontoons.

Environmental Protection and Compliance

Maintaining marine assets responsibly requires a strong understanding of environmental impact and regulatory obligations. Polaris Marine Group ensures that all maintenance activities are carried out with minimal disruption to marine ecosystems and in full compliance with local and federal regulations. We implement erosion controls, sediment containment, and waste minimisation protocols as standard. We also work with environmental consultants when projects intersect with sensitive habitats, protected species, or contaminated sediments. Our team is trained to respond to environmental risks quickly and effectively.

PROJECTS

SEE US IN ACTION

Manton Dam

Polaris Marine Constructions were engaged by Exact Contracting to provide a modular crane barge service at the Dam wall at Manton Dam to deliver the replacement of internal valving and upgrades to the infrastructure of the Intake tower.

Nelligen Bridge Marine Support and Demolition Contract

Polaris Marine Group played a key role in the Nelligen Bridge project, providing overwater support for construction before demolishing the 7-span, 5,000-tonne bridge. The in-house demolition was incident-free, using a suspended work deck with geotextile and drainage to capture debris. Materials were processed on-site and recycled. This project highlighted Polaris Marine’s expertise in complex marine demolition within sensitive waterways.

Seabed Services Pipe Line Deployment

Deploy 3 service pipe lines on the sea floor between Garden Island and Fort Dennison and cover with precast grout mattresses.

Fort Denison – Ferry Wharf

This project included wharf demolition, sea wall remediation, pile installation, concrete works, and the installation of a new pontoon with electrical connections.

Circular Quay – Western Promenade – Soffit Concrete Repairs

This project involved concrete remediation works, including hydro-blasting, shotcrete application, bar reinforcement, protective coatings, and concrete cutting, with site set-up, exclusion zones, and sound curtain installation to ensure safety and minimal disruption.

Manly Boat Shed – Pontoon & Jetty Replacement

This project involved constructing a pontoon, gangway, and timber jetty, including piling, demolition, and electrical connections, to deliver a durable marine access solution.
SEE MORE POLARIS PROJECTS

TESTIMONIALS

HEAR FROM SOME
OF OUR CLIENTS

★★★★★ 5/5
“Polaris are awesome to work with, they make landscaping jobs with tricky access a breeze.”

Johnny L - Distinct Landscapes

★★★★★ 5/5
“The attention to detail provided by PMC during the project could not be faulted. Execution, safety, onsite management and the finished product were at a very high standard. Communication throughout the project from PMC Supervisors and Project Manager were regular and accurate. This enabled Thales to understand daily activities, problems and overall progression at every stage. Ultimately, the professionalism shown by PMC through all aspects of the project, enabled for a successful end product to the Commonwealth. I can’t thank Dane and the PMC team enough for the way the project was ran, start to finish.”

Jake Duncombe, Project Manager

★★★★★ 5/5
“Polaris were an exceptional contractor to work with throughout this project. They were fluent in communication, timely, reliable, nailed the quality of work and went out of their way to be flexible with Thales needs. They have a positive and healthy working relationship with Thales.”

Owen Gardner, Project Manager

★★★★★ 5/5
“I have had the pleasure of working with Polaris for the last couple of years, particularly with transporting vehicles for events, deliveries, and contractors. Their Team is professional and reliable, from their Operational Team, Cookie & Jay, to their Skippers and deckhands are incredibly efficient, even under tight event schedules. What really stands out is their attention to detail and commitment to customer satisfaction. Such as accommodating last-minute changes, they always go the extra mile to make sure everything runs smoothly, giving us peace of mind. Over the years we have built a great relationship/partnership with Polaris and we look forward to continuing to work with them for years to come.”

Keighley O, Sydney Harbour Trust

GET IN CONTACT

If you need to tow it, show it, build it, push it, deliver it, lift it or salvage it over water; please complete this form and one of our team will be in touch.

Gate 2, James Craig Rd, Rozelle NSW 2039

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Phone: +61 2 9563 8333
Emergency Phone: +61 (0) 418 231 916

[email protected]

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Gate 2, James Craig Rd, Rozelle NSW 2039
[email protected]
Phone: +61 2 9563 8333
Emergency Phone +61 (0) 418 231 916
CERTIFICATION
BIMCO Certified
Certifications