Commercial Diving Services

MMA Offshore provides a complete range of commercial diving and inspection, repair and maintenance services to clients in the oil and gas, shipping, defence and marine infrastructure industries.

MMA has bases in Perth, Darwin and Melbourne, servicing both on and offshore clients across our global operations. We are strategically located to service the Australasian region with extensive operations throughout the Joint Development Petroleum Area (JDPA) and the North West Shelf.

Combining state-of-art equipment, the strategic allocation of resources and highly experienced personnel, our commercial diving team has the capability to complete projects of any scale, to the highest industry standards


We provide a range of commercial diving and inspection, repair and maintenance (IRM) services including:

  • Offshore & Subsea IRM
  • NEPSYS Dry Underwater Welding
  • Platform Inspections (Level II, III, IV)
  • Pipeline Repairs and Abandonments
  • Subsea Tie-Ins and Tree Installations
  • Site Surveys
  • Certified Subsea & Topside Welding / Cutting
  • NDT (Non Destructive Testing) Services (Topside & Subsea)
  • Cygnus Multi-Echo Ultrasonic Thickness Gauge
  • CP Bathycorrometer
  • Self Contained Underwater Magnetic Particle Inspection System (SCUMPI System)
  • Hull Scrubbing / Removal of Marine Growth / Bio-Security
  • Wellhead Installation, Repair and Abandonment
  • Site Clearance & Debris Removal
  • Anode Refits
  • Thruster Replacement
  • Underwater Construction
  • Water Tank Inspections & Cleaning
  • HAZMAT Diving
  • 24 Hour Emergency Response

Assets and Equipment

  • 5 vessels ranging from 6m - 13m
  • 7 IMCA compliant offshore dive systems
  • 9 onshore dive systems
  • 1 Comanche Light Work Class ROV
  • 4 Seabotix LBV 150/200s
  • 1 Seaeye Falcon ROV
  • 1 Sub-Atlantic Mojave ROV
  • 2 Swift work class ROVs
  • 5 x Deck Compression Chambers
  • 5 x Dive Control
  • 2 x Fully Hydraulic Diver Launch and Recovery Systems (LARS)
  • 1 x Hydraulic LARS with Pneumatic override capability
  • 1 x No Weld LARS (ideal for areas where welding is not possible)
  • 2 x HP Water Blasters (13,000 – 17,000 psi)
  • 2 x Grit Blasting Spreads
  • Extensive Range of Subsea Tooling (including hydraulic and pneumatic)
  • Digital and 35mm Underwater Camera Systems
  • UT / CP / Eddy Current Equipment
  • Alternating Current Field Measurement (AFCM)
  • Underwater Magnetic Particle Inspection