Commercial diver surfacing after an inspection dive

Sub Sea & Underwater Services

Commercial diving, inspection, underwater welding and salvage — innovative solutions to underwater problems, above and below the waterline.

Sub Sea & Underwater

Innovative solutions to underwater problems

Combining extensive experience with technologically driven diving equipment, our sub sea division finds innovative solutions to underwater problems — providing direct supervision and liaison at every stage of a project's preparation and execution.

Whatever the marine project, large or small, our commercial dive teams inspect, clean, repair and construct below the waterline — minimizing vessel downtime and keeping your assets safe, compliant and operational.

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Openbridge engineer on site

How can we help you?

Our sub sea capabilities

A full spectrum of commercial diving and underwater engineering services for vessels, pipelines, cables and marine structures.

Underwater Inspection

Video and photo inspection of vessels, structures and equipment — often carried out during normal cargo operations to reduce or eliminate vessel downtime.

Class & Remote Survey

Class-approved diving surveys for your vessels, including remote survey options, using technologically driven diving equipment.

Pipeline Inspection & Integrity

Pipeline inspection and integrity services that extend asset life, cut repair costs, reduce safety risk and assure regulatory compliance.

Hydrographic Survey

Professional hydrographic and bathymetric survey services delivered by an experienced, well-equipped team.

Underwater Hull Cleaning

Mechanized and hand-scraper hull cleaning and propeller polishing with state-of-the-art tools, delivered on time.

Hull & Cargo Tank Cleaning

Cleaning and maintenance of cargo tanks and hulls — including oil and chemical stain removal — for the longevity of your vessels.

Submarine Cable Laying & Burial

Experienced submarine cable installation, burial and maintenance — optimizing burial depth for a durable, reliable result.

Underwater Welding & Cutting

Wet welding, metal fabrication and cutting — including oxy-arc (BROCO) cutting of submerged structures — under the safest possible conditions.

Underwater Repairs & Installation

Trusted underwater repairs, installations, cleaning and maintenance across your subsea assets and equipment.

Anode Installation & CP

Anode replacement and installation plus cathodic-protection (CP) readings to extend the life of your submerged equipment.

Salvage & Refloating

Qualified divers and specialists handle salvage and refloating operations with the right equipment for the job.

Search & Recovery

Location and recovery of lost equipment and vessels using highly effective underwater detection, including magnetometer survey.

Openbridge welder at work

Welding, Cutting & Construction

Below-the-waterline engineering

  • Wet welding and structural metal fabrication
  • Oxy-arc (BROCO) cutting of submerged vessels and structures
  • Submarine cable laying, burial and maintenance
  • Anode installation and cathodic-protection works
  • Anchor entanglement clearance and replacement
We offer welding services such as metal fabrication, cutting and joining in the safest possible circumstances.
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Specialist Capability

Equipment & techniques

NDT / ultrasonic thickness gaugingMagnetometer detectionOxy-arc (BROCO) cuttingCathodic-protection readingsRemote surveyJetty & pile inspectionAnchor entanglement & replacementFresh water supply

On the Job

Our dive teams in the field

Underwater and structural welding
Metal cutting and fabrication
Underwater survey dive
Oil, gas & pipeline works
Subsea equipment inspection
Diving operations on site

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Have an underwater challenge?

From inspection and repairs to salvage and cable works — our dive teams are ready. Tell us about your project.