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SD Marine

Let us look after your boat so your boat looks after you

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Precision Marine Engineering for Premium Vessels

SD Marine delivers high-end marine mechanical engineering solutions for commercial vessels, luxury motor yachts and superyachts across Southeast Queensland and beyond. With extensive industry experience and a commitment to precision workmanship, our team specialises in diagnostics, servicing, refits, repowers and complete mechanical support tailored to each vessel’s operational requirements.

Our expertise covers main engines, gearboxes, generators, electrical systems, refrigeration, air conditioning and preventative maintenance programs. Operating from our fully equipped workshop within The Boat Works marina precinct at Coomera, alongside dedicated mobile service vehicles, we provide reliable onsite and workshop support with minimal downtime.

From routine servicing through to complex rebuilds and performance upgrades, SD Marine is trusted for delivering dependable engineering solutions with professionalism, efficiency and attention to detail.

What we do

Our Services

Mechanical Repairs & Hydraulics

SD Marine provides expert mechanical repairs and hydraulic services for all types of vessels, ensuring every system operates reliably and efficiently. From diagnosing complex mechanical issues to repairing critical hydraulic components, their experienced team works across all makes and models to keep your boat performing at its best both on and off the water.

Brand New Engine Installations & Diesel/Petrol Rebuilds

Whether you’re upgrading performance or restoring power, SD Marine specialises in brand new engine installations as well as complete diesel and petrol engine rebuilds. Their team handles everything from removal and replacement to precision rebuilds, delivering reliable, high-performance outcomes tailored to your vessel.

Shafts & Running Gear Servicing and Rebuilds

SD Marine offers comprehensive servicing and rebuilds of shafts, props, and running gear to ensure smooth operation and maximum efficiency. By addressing wear, alignment, and performance issues, they help reduce vibration, improve fuel efficiency, and extend the lifespan of your vessel’s drivetrain.

Gearbox Rebuilds

From minor repairs to full gearbox overhauls, SD Marine ensures your transmission system operates seamlessly under load. Their detailed approach to gearbox rebuilds restores performance, reliability, and longevity—critical for both recreational and commercial vessels.

Servicing & Preventative Maintenance

Regular servicing is key to avoiding costly breakdowns. SD Marine provides thorough preventative maintenance programs, including inspections, diagnostics, and scheduled servicing, helping boat owners maintain peak performance and reliability while minimising downtime.

Generator Requirements & Electrical Works (High & Low Voltage)

SD Marine handles all generator servicing and electrical work, including both high and low voltage systems. From installations to fault finding and upgrades, their team ensures your vessel’s electrical systems are safe, compliant, and fully operational for all onboard needs.

Air Conditioning & Refrigeration

Comfort onboard is essential, and SD Marine delivers professional air conditioning and refrigeration services to keep systems running efficiently. Whether it’s installation, repairs, or servicing, they ensure reliable temperature control for both living spaces and storage systems.

Antifouling & Detailing Work

SD Marine offers antifouling and full detailing services to protect and enhance your vessel. Antifouling treatments help prevent marine growth and improve performance, while detailing restores your boat’s appearance inside and out, keeping it in premium condition.

Surveys & Insurance Work

From pre-purchase inspections to insurance-related repairs, SD Marine provides detailed surveys and reporting to support informed decisions and claims. Their expertise ensures accurate assessments and high-quality repair work that meets insurer and industry standards.

Concierge Service

SD Marine’s concierge service is designed to take the hassle out of boat ownership. From coordinating maintenance and transport to managing servicing schedules, their team provides a seamless, end-to-end experience so you can spend more time enjoying your vessel.

One call to sort it all

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