About DGI

Global leader in fibreglass construction

Created by the Principal Derek Gee, the company was formally incorporated in 1995 and has since been undertaking GRP/fibreglass fabrication and installation projects across Australia and internationally.

DGI has a fabrication workshop located in Western Australia, strategically located to service a number of large infrastructure and resource projects.


With more than 20 years experience, DGI projects can range from installation through to complete turnkey projects, depending on the client’s needs - DGI has been involved in more than a dozen major construction projects across the globe. DGI prides itself on compliance with current occupational health and safety standards.


Projects include chemical storage facilities, industrial processing plants, desalination plants, waste water treatment, mineral processing plants, and mine sites. With a large workforce of trained laminators, mechanical fitters, poly welders, machine operators and pipe fitters, DGI has the capability to undertake numerous projects across the globe.


Our continued opportunities are gained by the reputation achieved through our skillful and loyal workforce. One of the biggest highlights has been the development and growth of our company workforce, with ongoing training provided to meet the changing needs of our clients. DGI will continue to grow and match the opportunities provided, with quality, safety and ongoing employee development as priorities.


DGI has alliances with many leading international companies, which allow us to supply complete pipe systems including PE or Bell and Spigot pipe, flanges, bends, reducers, blinds, tees and special fittings

Derek Gee Installations Pty Ltd are certified with the following Environment and Trade Qualifications

ISO 9001 Certified
ISO 45001 Certified
ISO 14001 Certified