About Watertight Robotics


At Fremantle Commercial Diving our philosophy is simple; we invest in our people and our equipment, we listen to our clients and we aim to deliver outstanding, cost effective results every time.

In order to achieve this we focus on the following key objectives:

  • Maintaining a workforce of dedicated, long term employees
  • Minimising reliance on hire equipment
  • Maintaining an extensive inventory of high quality supporting equipment
  • Minimising reliance on sub-contractors
  • Maintaining outstanding HSECQ systems
  • Investing in innovation and continual improvement

Our marketing claims are backed by real people, quality equipment and solid management systems. We deliver high quality client reports with meaningful graphics and we welcome client engagement and audits. We are always happy to explain or work methods, applicable legislative requirements and what implications these have for our clients. If you are looking for truly professional diving or underwater robotic dredging services, make Fremantle Commercial Diving your first choice.


Antony Old

Antony completed a bachelors degree in Aquatic Science at the University of Tasmania in 2001 and commenced his career as a farmhand/diver at Tassal Salmon in the same year.  Returning to Western Australia in 2003, Antony worked for several large diving companies, gaining considerable experience in shipping, maintenance, and construction. Antony joined Fremantle Commercial Diving in 2006, and gained an extensive knowledge in the delivery of land based diving services in potable and mining environments. With his passion for job planning and safety, Antony expanded the business into new areas of technical and specialised services, while maintaining a focus on the water and mining sectors.  Antony has been instrumental in driving the business towards new areas of innovation in robotics and technology, with a passion for developing solutions to problems that have not yet been solved.  Antony is a past chair of the Australian Water Association’s Water Quality Committee and has an in-depth understanding of water quality, particularly in relation to potable water tank maintenance.

Alan Cooper

Alan is an accomplished Chartered Accountant with two decades of experience in the resources industry, adeptly navigating both operated and non-operated settings. As a positive and visionary business leader, Alan has honed his skillset through exposure to diverse business models and invaluable mentorship by esteemed industry experts. Throughout his career, he has held senior finance roles in public listed and private companies, ranging from SMEs to multinational organisations in Australia and the UK. Alan has extensive experience in M&A transactions, having actively contributed to successful asset and corporate acquisitions and divestments across various local and global jurisdictions. With a track record of driving growth and success, Alan continues to make a significant impact, leveraging his financial acumen and strategic decision-making to create a brighter future for businesses and stakeholders alike.

Ben Fazioli

Ben began his commercial diving career in 2000 in the pearling industry before achieving a bachelor’s degree in marine science with honours at the University of Tasmania. After graduation Ben was employed at Huon Aquaculture in Tasmania for 4 years, before returning to commercial diving in 2006 working for a number of companies in the Northern Territory and Western Australia, including Fremantle Commercial Diving (FCD). Ben relocated to South America in 2007 working in Chile and Panama on inshore and offshore fish farms, managing vessel and diving operations in remote and challenging conditions. Ben re-joined FCD in 2013, bringing 22 years’ experience in the marine contracting field with him. He became General Manager of Operations in 2015 and held this position until 2022, when he moved into a dedicated R&D role to drive outcomes-based research, innovation, testing, continuous improvement, and knowledge management of the robotics department. Ben is helping to enhance service capabilities and contribute to the achievement of corporate objectives and targets.

Dean Colcutt

A Marine Electrician by trade, Dean began his diving career at Fremantle Commercial Diving (FCD) in 2007. His commitment to achieving results with planning, logistics and problem solving saw him rapidly rise to the level of Diving Supervisor, before being promoted to Operations Manager in 2012. Dean holds a wealth of knowledge in specialist diving fields such as penetration and potable diving. In addition to his qualification as a Marine Electrician, Dean is also an ADAS Pt. 3 Diver, Pt. 2 Dive Supervisor, certified NDT Diver, Commercial Skipper, and Dive Medic Technician. In 2023, Dean moved into the Field Support Manager role, in charge of engaging with internal and external stakeholders to ensure projects have been planned and managed to achieve technical requirements, and providing leading project management and maintenance support to the workshop and field teams. Dean also resolves complex technical issues, prepares contingency plans, reviews specifications/project scopes and participates in hazard identification/risk management activities. Dean works closely with the R&D team to strategise and execute critical testing activities for new technology.