Although a Sydney based Underwater Construction Company, HDSA Group work Australia wide.

In particular, we specialise in the inspection, maintenance and construction of marine structures including wharves, jetties, seawalls and pontoons. This often also involves creating Annual Maintenance Plans for all assets on the wharves and project managing new construction projects.

HDSA Group has expanded significantly since its establishment in 2004 and is now one of the largest On-Shore Commercial Diving Companies that operates out of the East Coast of Australia.

Much of this is attributed to hard work and the innovative approach HDSA Group take when planning or reviewing construction. Time after time, HDSA Group brings a unique and innovative perspective to projects based on experience and knowledge. The result is often savings in time and money.