About Us

Commercial & Private Vessels; Power Boats and Yachts.

We provide professional services and sell reputable products.

Built on the banks of the beautiful Swan River, overlooking Rottnest Island and the Indian Ocean, Perth and Fremantle are surrounded by water.  With a sunny Mediterranean climate we are lucky to live in a premiere boating destination.

With over 30 years of power boat and sailing experience David Berthold established  Jota Marine in Fremantle in 1998. Providing a range of mobile mechanical services, precision marine engineering repairs, sales of fuel and oil products, marine engines and generator sets Jota Marine is well qualified in offering expert solutions to boat owners.

Quality Comes First! Our Focus Is 100% On Client Needs and Satisfaction.

Our Services

Jota Marine brings over 30 years experience in marine engineering, services and repairs.

We have many happy and repeat customers and provide both troubleshooting as well as preventative maintenance solutions.

Our Products

Dave first heard about the additives and corrosion control products we now sell from an excited customer who was using them on his own boat and highly recommended them. Dave saw the impact of these innovative products first hand and now recommends and sells them.

Our products are not just for boats.
They are used by: