Marine Servicing & Repair

We service boats, jet skis and outboard motors. We have you covered if you need repair work, custom fabrication or help to diagnose an issue with your vessel. 

Over 20 year industry experience

Shellharbour Marine Mechanical is staffed by factory trained technicians specialising in the maintenance of marine vessels

Customer satisfaction

We rate our success by the happiness of our customers. A working boat and a smiling face are two of our most important measures of success.

Full service
workshop experience

We do more than simple servicing. If you need a full fit-out, custom upholstery, or an engine rebuild and fabrication, we can help you out.

Why should I use Shellharbour Marine Mechanical?

When it comes to something as important your boat or jet ski, you want two things. You want a professional who loves what they do. You want someone working on them that cares about getting the best from your boat as much as you do. 

The owners of Shellharbour Marine Mechanical, Nick and Grant, are right with you. They want your boat in the water where it is meant to be and they will do whatever it takes to help you get there.

A few years ago Nick and Grant met whilst on the job and both recognised they’d found a kindred spirit. They both loved the water and gave a damn when it came to their craft as marine specialists.

When the opportunity arose to work together and provide a place on the South Coast, where customers could get both excellence and customer service, they joined forces under the banner of Shellharbour Marine Mechanical to provide just that.

If you want excellence without the fuss, let Grant and Nick take care of your marine needs.

Our Services

Marine Servicing

We offer a full range of service and repair options. Our technicians are factory trained on all makes and models of marine engines. We only use quality parts to ensure all work is completed to the highest standard. 

Outboard motor for boat


Our qualified marine mechanics service all outboard brands including Mercury, Mercruiser, Evinrude, Johnson, Yamaha and Suzuki Outboard Motors.

Jetski during race

Jet skis

We service all Mercury Marine, Evinrude, Sea Doo and Kawasaki Jet Skis. We aim to make the service experience hassle free and pleasant.

Impeller inboard boat blades being cut by CNC milling machine

Inboard & Stern Drives

From a spark plug to a crankshaft we have you covered. We can service diesel engines and can order parts to specification.

Repair and Maintenance

Using our fully equipped workshop, we can assess any problem that might be effecting an engine and undertake whatever repairs are required to get it operating properly.

Seized Steering

Nothing is more frustrating than not being able to go where you want. Let us get you back on the right track.

Fuel System Problems

Whether your tank, pipes, pumps or carburettor, we can repair and fix  all fuel systems from an industrial diesel engine to a two stroke tinny.

Hydraulic Trim Repairs

We can rebuild your hydraulic cylinders and custom fit your hoses to get you back to a level playing field.

Electrical Diagnosis

We can get your spark plugs sparking, your engine firing on time and find any voltage leaks that draining your fun.

Prop Repairs

If you prop is causing vibration or you have hit something in the water, we get your prop back in balance and smoothly propelling you forward.


Our technicians are ready to strip an engine back and build it up with the highest quality parts to have you on the water again.

Trailer Repair & Maintenance

Having a boat is great, but if you can’t get it back to the water you aren’t happy. Fortunately we do all kinds of trailer repairs.

Fitouts and De-rigs

Powerboat interior


Some times you need something something special that sets your pride and joy apart. We can fabricate and install a custom fitout that will take your boat to the next level.



When something just doesn't fit, we can remove and dispose of the offending item or items. We uninstall items and can strip back interiors ready for restoration and refit.

Soldering Iron

Complete boat re-wire

When water gets into your system or you can see corrosion where it doesn't belong, you can count on our factory trained technicians to re-wire your boat or jetski.

Row of Deep Sea Fishing Rods on Boat

Installation of accessories

Your boat doesn't always come with the mod-cons you require. We can fit custom coolers, eskies, GPS and radio equipment.

Other services

The service doesn’t stop there. We offer marine welding, fibreglass repairs, and canopy and bimini repairs. Talk to us about your needs and if we can’t do the work in the shop. We know the right people to call.

Parts and Accessories

We sell a wide range of boating and Personal Water Craft accessories from leading brands. Our experienced staff have a wealth of knowledge in all areas of boating, jetski, and ski and wakeboard products.
Motorboat Prop

Use Outboard Parts

Aside from our large selection of brand new OEM marine parts, we stock used outboard parts and accessories. Our used inventory is stocked with parts from all of the top name brands in the marine industry such as Mercury, Johnson, Evinrude, Yamaha, Suzuki, Honda, and MerCruiser.

Disassembling the cylinder head to overhaul the engine

Outboard Motor Wrecker

Every used part that makes its way into our inventory has been checked and determined to be in good working condition by our mechanics. We guarantee that our used parts work and if they don't, we will replace it for you with another one free of charge.