Specialist underwater services for infrastructure, marine assets and environmental projects.

 

Commercial Water Dive provides professional underwater inspection, maintenance, recovery, scientific support and technical diving services across South West Western Australia. We work in challenging environments where safety, reliability, clear reporting and practical outcomes are critical.

 

Our team supports asset owners, operators, government agencies, marine businesses and project managers with dependable in-water capability across a wide range of project types. Whether the task involves inspection, cleaning, recovery, sampling or specialist underwater support, we deliver services that are methodical, well-documented and aligned with client requirements.

 

We understand that many underwater works are carried out on essential infrastructure, operational assets and environmentally sensitive sites. That is why our approach is always focused on safety, planning, communication and quality from start to finish.

 

Our Capability

 

Underwater Inspection

 

• Structural condition assessments of dams, pipelines, intakes, outfalls, jetties, wharves and bridge piles

• Marine growth surveys, corrosion mapping and concrete defect identification

• Georeferenced HD photography and videography for detailed visual records

• CCTV pipeline and culvert inspections using remote camera systems

• Condition grading against recognised standards and asset management frameworks

• Baseline inspections and scheduled re-inspection programs

• Post-event inspections following storms, floods or structural incidents

 

Maintenance and Cleaning

 

• Marine growth removal from piles, hulls, intakes and infrastructure surfaces

• Anode inspection, replacement and cathodic protection system support

• Intake and outfall screen clearing and debris removal

• Minor underwater repairs including fastener replacement, patching and sealing

• Propeller polishing, hull cleaning and running gear inspections

• Scheduled maintenance programs for ongoing asset management

 

Search and Recovery

 

• Systematic underwater search operations using structured patterns and sonar support

• Vehicle, vessel, equipment and object recovery from waterways, dams and marine environments

• Evidence and exhibit recovery for law enforcement and emergency services

• Lift bag and crane-assisted recovery for heavy or awkward items

• Environmental containment during recovery operations involving fuels, oils or hazardous materials

• Chain-of-custody documentation and operational reporting

• Coordination with WA Police, local emergency services and regulatory authorities

 

Scientific and Environmental Support

 

• Water quality sampling and environmental monitoring fieldwork

• Benthic habitat surveys, seagrass mapping and reef assessments

• Marine fauna observations and interaction management during in-water works

• Sediment and biological sample collection

• Support for marine scientists, environmental consultants and research programs

• Fieldwork in remote, tidal and access-restricted environments

 

Technology and Documentation

 

• High-definition underwater photography and video recording

• Georeferenced imagery linked to asset locations and inspection points

• Side-scan sonar for search operations and seabed mapping

• CCTV and remote camera systems for pipeline and confined space inspections

• Detailed inspection reports with condition grading, photographic evidence and maintenance recommendations

• Integration with client asset management and reporting systems

• Digital deliverables including video, photo logs and GIS-compatible records

 

Representative Projects

 

Dam Safety Inspection

 

Scope: Comprehensive underwater inspection of a regional dam structure including concrete face, joints, spillway apron and intake tower. Full photographic and video documentation of all accessible submerged surfaces.

 

Deliverables: Detailed inspection report with georeferenced HD photography and video, condition grading for all structural elements, and prioritised maintenance recommendations. Report prepared to support dam safety review requirements.

 

Outcome: Inspection identified early-stage joint deterioration and minor concrete spalling requiring preventative maintenance, enabling the client to schedule targeted repairs before the next wet season.

 

Pipeline Intake Inspection and Cleaning

 

Scope: Underwater inspection and marine growth removal on raw water intake structure and associated pipeline. CCTV survey of pipeline interior to assess condition and identify blockages.

 

Deliverables: Video inspection report, marine growth removal completion record, and pipeline condition assessment with recommendations for anode replacement and protective coating maintenance.

 

Outcome: Cleaning restored full flow capacity to the intake. Pipeline survey confirmed structural integrity with localised coating breakdown requiring scheduled maintenance.

 

Search and Recovery Operation

 

Scope: Systematic underwater search and recovery of a submerged vehicle from a regional waterway. Operation conducted in coordination with WA Police and local emergency services.

 

Deliverables: Search plan, operational log, in-situ photography and documentation, safe vehicle recovery using lift bags and crane support, and chain-of-custody records for all recovered items.

 

Outcome: Vehicle located within four hours of search commencement using side-scan sonar. Recovery completed safely with full environmental containment of fuel and fluids.

 

Jetty Pile Inspection Program

 

Scope: Condition inspection of 120+ timber and steel piles on a regional jetty structure. Assessment of marine borer damage, corrosion, structural cracking and scour around pile bases.

 

Deliverables: Pile-by-pile condition report with photographic evidence, condition grading matrix, and prioritised repair and replacement recommendations integrated with the client’s asset management system.

 

Outcome: Inspection data enabled the client to develop a staged pile replacement program, extending the serviceable life of the jetty while managing capital expenditure across multiple budget cycles.

 

Scientific Field Support and Water Sampling

 

Scope: Dive support for an environmental consulting firm conducting baseline water quality monitoring across multiple estuarine and nearshore sites. Collection of water column samples at specified depths, deployment of sampling equipment and in-situ field measurements.

 

Deliverables: Sample collection logs with GPS coordinates, depth records and field observations. Samples handled, labelled and stored in accordance with NATA chain-of-custody requirements. Daily field reports provided to the lead consultant.

 

Outcome: All samples collected within the required timeframes and delivered to the laboratory in compliant condition. Fieldwork completed on schedule despite variable weather and tidal conditions, supporting the client’s regulatory reporting obligations.

 

Why Commercial Water Dive

 

We are a specialist diving contractor focused on delivering safe, professional and well-documented underwater services. Our clients choose to work with us because we provide:

 

• Qualified and experienced commercial divers with current AS/NZS 2299.1 compliance

• Detailed safety planning, risk assessments and dive management for every project

• Reliable communication and coordination from initial enquiry through to final reporting

• Comprehensive documentation including photography, video, inspection reports and data integration

• Capability to work across infrastructure, marine, environmental and emergency response projects

• Local knowledge and operational readiness across South West Western Australia

 

Built for Demanding Environments

 

Commercial Water Dive operates in environments where conditions are unpredictable and the work demands precision. From low-visibility dams and fast-flowing pipelines to exposed coastal structures and tidal estuaries, we plan and execute every project with the same commitment to safety, quality and professionalism.

 

Our operational capability is supported by well-maintained diving plant, inspection technology and safety systems. We continuously invest in our equipment and training to ensure we are ready to respond when our clients need us.

 

Ready to Discuss Your Project?

 

Contact Torry on 0427 924 857 or email torry@commercialwaterdive.com.au to discuss your requirements.