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All-Sea Underwater Solutions

  • Vessels



9 Lower Cove Loop
Saint John New Brunwick E2L 1W7

Established in 1978, All-Sea Underwater Solutions has evolved to become one of the world’s leading underwater ship repair and maintenance companies. Our dive technicians are highly skilled, well trained and solution-focused, who have worked under some of the most difficult circumstances and harshest environments, and still able to provide our clients with cost effective, high quality results. All dive technicians are well educated service providers with a varied background in Original Equipment Manufacturer products and are able to perform innovative, class approved permanent repairs, even in the most desolate of environments. Over the years, All-Sea has developed specialized, proprietary equipment to carry out maintenance or repairs of the highest standards, underwater, anywhere in the world.

With offices in Vancouver, St. Catharine’s, Saint John, Halifax, and Busan, South Korea – and a global network of affiliates – All-Sea undertakes hundreds of underwater projects annually on behalf of many of the world’s leading Shipping, Oil & Gas, and Construction industry companies. Our Certified Propeller Technicians and Seal Technicians are qualified to provide a wide array of services and repairs to vessels previously unavailable outside of drydock. Sophisticated, shop quality repairs and modifications can now be done underwater, while a vessel is loading/unloading, dockside, or at anchor – enabling the vessel to stay on schedule, and on-budget.


Innovation, technology, and our proprietary procedures are what set All-Sea apart. In particular demand around the world are our class-approved permanent propeller repairs, which include the straightening of large bends in a matter of hours, precision cold cropping, design modification, static & hydrodynamic balancing, and replacement of C.P. blades. Seal repair and replacement can be done underwater in a dry environment by using a TransHab system. Bonding new seal rings, removal or installation of spacer rings, and even complete seal replacements can be performed underwater without interference to the vessels schedule. By using specially designed cofferdams and hyperbaric chambers, defective shell plating sections can be replaced underwater by class-approved permanent dry welding. What before was thought impossible underwater, is now not just a possibility, but a reality.

All-Sea has worked extensively to develop and adapt to the world market. While more and more local port authorities are closing their doors to hull cleanings and propeller polishes, we are the first and only company to receive authorization from the Port of Vancouver using our WET systems. Investing over two years of time, resources, research and development, All-Sea has developed a reclaim collection system - Whale Shark Environmental Technologies (WET). With so many customers making trans-pacific crossings after calling on Vancouver, regular hull and propeller maintenance aid greatly in operational and fuel cost savings.

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