Diving is our core competency with decompression capability to 50 metres, supported by our twin-lock recompression chamber.

Operations are delivered under AS/NZS 2299.1, ISO 9001 and ISO 45001, aligning with the expectations of government agencies, utilities, engineering firms, port authorities and industrial clients.

TDG’s experience spans the full range of Tasmanian marine environments, with a strong track record in ports, hydroelectric facilities, dam infrastructure, potable water systems, environmental monitoring programs and complex marine construction tasks. Local knowledge, combined with a diverse and technically capable workforce, provides consistent delivery across routine operations, remote projects and high-risk underwater tasks.

A commitment to safety, compliance and efficient project execution positions TDG as a trusted provider for long-term asset management, inspection programs and specialist underwater works across Tasmania and beyond.