Precision, Safety, and Skill Below the Surface
Commercial Diving
ACK Marine’s commercial diving team delivers highly specialized underwater inspection, repair, and construction services that support marine infrastructure across New England. With certified divers, advanced equipment, and rigorous safety practices, we bring clarity and control to environments where visibility is limited and precision is essential.
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Structural Inspections – Comprehensive evaluations of piers, bridges, wharves, dams, locks, and other infrastructure to determine condition, scour, and structural integrity.
Vessel Hull Inspections – In-water surveys (UWILD) and condition assessments that meet class society standards and help reduce the need for dry-docking.
Non-Destructive Testing (NDT) – Underwater UT, MPI, and coating-thickness testing to assess material condition without damaging components.
Seabed & Pipeline Surveys – Mapping, locating, and inspecting pipelines, outfalls, and subsea cables using divers, ROVs, and sonar.
Environmental Surveys – Ecological assessments, sediment sampling, and invasive species evaluations for regulatory or scientific requirements.
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Underwater Welding & Cutting – Certified welding and cutting services using wet and hyperbaric techniques to repair or fabricate steel structures underwater.
Concrete Repair & Grouting – Restoration of concrete piles and structures, including the placement of new concrete and structural injection grouting.
Hull & Propeller Maintenance – Scraping and removal of marine growth, hull cleaning, and propeller servicing to restore optimal vessel performance.
Cathodic Protection Installation – Installation and maintenance of anodes and corrosion protection systems for long-term structural durability.
Intake & Outfall System Work – Cleaning, repair, and installation services for municipal, industrial, and energy-sector water systems.
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Marine Construction Diving Support– Installation of pilings, bulkheads, boat ramps, and other structures requiring diver-assisted precision.
Dredging & Debris Removal Support – Diver-assisted sediment removal and underwater debris clearance for safe navigation and project continuity.
Pipeline & Cable Installation – Placement and connection of subsea pipelines, utilities, and communication cables.
Cofferdam Installation – Diver-assisted fabrication and installation of watertight enclosures for dry work in challenging marine environments.
Marine Salvage – Recovering, stabilizing, and assisting with the repair of damaged or stranded vessels and marine assets.
Our Standard is Safety First
Safety is the foundation of all ACK Marine diving operations, with strict protocols and continuous training that protect our divers and ensure excellence underwater. Visit our Safety page to see how we uphold industry-leading practices.