Underwater Construction
With 25 years of combined experience in marine construction, Harcan Marine specialises in end-to-end underwater solutions. From complex commercial diving services to precision underwater marine construction, we bring the expertise, equipment, and reliability needed to do the job right—the first time.
Why Harcan Marine For Underwater Construction Services
Harcan Marine isn’t just another commercial diving company—we bring a different level of expertise to the job. Our team includes highly skilled divers trained in underwater welding and commercial diving. With over 700 successful projects completed, we bring extensive experience to every job.
We follow ISO-accredited safety standards, ensuring all underwater construction services are carried out with exceptional precision and risk management.
Our ex-military director runs a tight ship, bringing discipline, accuracy, and a problem-solving mindset to every project. We don’t cut corners. We get the job done safely, efficiently, and to the highest standard when undergoing underwater construction.
Need the right gear? We’ve got a fleet of vessels and specialised equipment available for hire, so you have everything you need to tackle construction under water, including marine plant hire, barge boat hire, and so much more.
How We Work: Our Underwater Construction Services
Facing underwater maintenance roadblocks? With a strong team behind you, they become a thing of the past.
We provide seamless marine project planning and management, ensuring efficiency, compliance, and smooth execution from start to finish. Our certified divers bring expert underwater inspection knowledge, using advanced technology to assess the integrity of marine assets and help you lower risk before it becomes costly.
With extensive Australian underwater construction expertise, our highly trained teams handle everything from structural repairs to pile remediation, delivering precision, safety, and reliable results.
Our Core Services
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Marine Construction: Wharf and bridge repairs, wet welding, underwater concreting, underwater cutting, and marine salvage.
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Non-Destructive Testing (NDT): Identify potential issues before they become major problems.
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Structural Inspections: Routine checks to assess damage, corrosion, and wear.
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Marine Growth Removal: Prevent fouling and improve the efficiency of underwater structures.
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Emergency Repairs: Fast response to unexpected underwater damage.
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Corrosion Protection & Coating: Extend the lifespan of marine structures with advanced protection methods.
Committed to Underwater Construction Excellence
We operate across Queensland, New South Wales, the Northern Territory, Victoria, and the Pacific Islands, delivering top-tier marine solutions focused on safety, innovation, and efficiency. Our JSANZ-accredited ISO Safety, Environmental, and Quality Management systems ensure every project is executed to the highest standard.
Let’s Plan Your Next Underwater Maintenance Project
Contact us today to discuss your next marine project and discover why Harcan Marine is the trusted choice for quality underwater construction services. Ready to tackle your next marine project with a team you can trust? Harcan Marine delivers expert, precision underwater construction and reliable equipment hire to keep your project running smoothly.
Get in touch today to discuss your project needs and see how we can provide a custom solution that meets your timeline, budget, and safety requirements.
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What is the difference between underwater NDT and regular NDT?Underwater NDT inspections are specifically designed to assess structures submerged in water, such as subsea pipelines, pontoons, and steel piles. The key difference is that underwater inspections must account for the challenges of working in an aquatic environment, such as visibility, currents, and pressure. Regular NDT, on the other hand, is typically used for inspections above water.
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How do I know if my underwater structure needs an underwater magnetic particle inspection?If your structure is exposed to harsh underwater conditions or has been in service for a long time, it’s a good idea to schedule regular NDT inspections. Early detection of wear, corrosion, or other issues can prevent costly damage and ensure the safety of your infrastructure.
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What types of damage can underwater non-destructive testing detect?Underwater NDT can detect multiple issues, including corrosion, cracks, material thinning, and structural misalignment. These inspections help identify potential problems before they lead to significant damage or failure, ensuring your structure remains safe and operational.
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How often should I schedule underwater NDT inspections?The frequency of underwater NDT inspections depends on the type of structure and environmental factors. Typically, inspections are scheduled annually or biannually. However, more frequent inspections may be recommended for high-risk areas or critical infrastructure.
