Insights & Innovations in Underwater Repair and Marine Services

Air Lubrication System Cover Replacement on a 360-Meter Passenger Vessel in Miami

A major cruise operator required the replacement of air lubrication system (ALS) cover plates on one of its largest passenger vessels during routine port calls in Miami.

Underwater Propeller Polishing to Improve Vessel Efficiency in Vancouver, Canada

A large ocean-going commercial vessel calling at Vancouver required underwater maintenance to improve propulsion efficiency during a scheduled anchorage period in English Bay, British Columbia.

Underwater Hydrophone Pipe Installation on an Offshore Drilling Vessel

Offshore hydrophone pipe installation completed by Subsea Global Solutions using commercial diving and underwater welding while the drilling vessel remained afloat.

Emergency Underwater Rudder Repairs on a Large Ocean-Going Vessel — Busan, South Korea

Subsea Global Solutions was engaged to deliver a reliable, class-approved underwater repair solution while the vessel remained in service in Busan, South Korea.

Efficiency at Sea: Successful PBCF Installation

Our operations team recently reached a significant milestone with the successful completion of a Propeller Boss Cap Fins (PBCF) installation for the vessel Seagull in Singapore.

Employee Spotlight: Karl Lander

We’re proud to spotlight Karl Lander, Director of Environmental Services at Subsea Global Solutions. With extensive experience in marine and environmental operations, Karl plays a key role in advancing sustainable practices, regulatory compliance, and environmental stewardship across our global projects, helping clients meet operational needs while minimizing environmental impact.

Underwater Bow Thruster Installation on a Nearly 300-Meter Passenger Ship

A nearly 300-meter passenger vessel operating in a high-traffic cruise terminal required the installation of a new bow thruster to support maneuverability and safe port operations. Due to the vessel’s size, operational schedule, and the need to avoid drydocking, the work had to be performed underwater while the ship remained afloat.

Containership Underwater Wet Weld Repair – Galvanic Corrosion between Carbon Steel Hull and Super Duplex O/B Discharge Pipe

Subsea Global Solutions completed an underwater wet weld repair on a containership, resolving galvanic corrosion between a carbon steel hull and a super duplex overboard discharge pipe.

Moonpool Flap Removal & Recovery — Offshore Drilling Rig

An offshore drilling rig operating in the Gulf of Mexico required the safe removal and recovery of its forward and aft moonpool flaps. These large structural components, critical to moonpool integrity and underwater operations, had to be detached, lifted, lowered to the seafloor, and ultimately brought to the surface for inspection and handling.

Offshore Pump Platform Stabilization for a Desalination Plant in Santa Barbara, California

Subsea Global Solutions stabilized offshore desalination intake pump platforms near Santa Barbara using marine construction and commercial diving techniques to protect critical plant operations.

Biofouling Management in Focus: Insights from International Maritime Events

Subsea Global Solutions shares insights from key global events on biofouling management, antifouling technologies, and evolving maritime regulations.

The All-Sea Underwater Solutions Legacy

As Subsea Global Solutions celebrates 80 years of maritime excellence, we honor the companies whose legacies became part of our global story. Among them is All-Sea Underwater Solutions.

Parker Diving Service and Torrance Parker’s Legacy

From our earliest roots in the 1940s to our present global footprint, our history is a story of pioneers, problem-solvers, and dedicated diver-technicians who helped shape the subsea industry. That history includes Torrance Parker.

Miami Diver — Pioneering U.S. Atlantic Diving Heritage

As Subsea Global Solutions reflects on the legacy companies that shaped our identity, Miami Diver holds a privileged place in our story.

Gray Diving and the Legacy of the Gray Family

The story of Subsea Global Solutions is woven together by the legacies of pioneering companies and families whose vision shaped the subsea industry. Among them, the Gray family stands tall.

Celebrating 80 Years Beneath the Surface: The History of Subsea Global Solutions

This year, Subsea Global Solutions celebrates 80 years of delivering innovative underwater solutions to the maritime, cruise, offshore, and oil & gas industries.

Subsea Global Solutions Featured in “Schweissen und Schneiden”

Subsea Global Solutions received a two-page feature in the November 2025 issue of Schweißen und Schneiden, the respected publication of the German Welding Society (DVS).

Diving Deeper into Underwater Weld Repairs: Uwe Aschemeier Publishes Part Two in WELD Magazine

Subsea Global Solutions’ Senior Welding Engineer, Uwe Aschemeier, has once again shared his extensive expertise with the global welding community through WELD Magazine, a leading Canadian publication focused on welding technology and lifestyle.

Underwater Inspection and Propeller Damage Repair on Oil Products Tanker

Subsea Global Solutions’ Antwerp dive team inspected and repaired a damaged propeller blade on a 250m oil products tanker in Rotterdam, restoring hydrodynamic performance and vessel readiness within the port call.

Port Shaft Seal Repair in Eleusis, Greece

Subsea Global Solutions was engaged to perform an emergency underwater shaft seal repair on a mid-size cruise vessel docked in Eleusis, Greece.

Shaft Seal System Repair with Innovative Dry Repair Technique

When a vessel experienced a significant shaft seal leak, Subsea Global Solutions mobilized rapidly to perform a full seal replacement—without a dry dock or habitat—ensuring minimal downtime and maximum efficiency.

Emergency Afloat Shaft Seal Repair Using Ribbon Bag Habitat

Faced with a critical shaft seal leak, Subsea Global Solutions performed an afloat repair at the Galveston City Docks—overcoming logistical delays and environmental challenges to restore the vessel without dry docking.

Multi-Phase Inspection and Shell Plate Repair in the Gulf of Mexico

Following a major Gulf of Mexico hurricane, Subsea Global Solutions delivered rapid-response underwater inspection and multi-phase repairs to a storm-damaged vessel—completed safely, efficiently, and to class standards.

Critical Cap Installation at Naval Facility in Southern California

A major marine contractor required expert diving support for the installation of a structural cap at a floating drydock mooring facility located within a restricted-access naval base in San Diego. The operation involved precision underwater cutting, structural steelwork placement, and integration with concrete construction, all under tight schedule and engineering constraints.

Proven, Precise, Professional: What It’s Like to Work With Subsea Global Solutions

Subsea Global Solutions provides proactive underwater inspection & maintenance programs for offshore oil & gas operators—helping extend asset life, reduce risk & meet class requirements.

Cleaner Hulls, Cleaner Oceans: Subsea Support for Sustainable Oil & Gas

Subsea Global Solutions helps offshore oil & gas operators manage biofouling risks with diver & ROV cleaning, inspections, and regulatory-compliant solutions—boosting efficiency and reducing downtime.

How Subsea Support Minimizes Downtime in Offshore Operations

Subsea Global Solutions delivers rapid, class-approved underwater repairs for the offshore oil & gas industry—reducing downtime and eliminating costly dry-docking. Learn how our global teams support critical assets 24/7.

Stern Seal Exchange on an Oil/Chemical Tanker in Curacao

Subsea Global Solutions was called upon to perform a critical underwater stern seal exchange on a tanker docked in Curacao. Facing significant oil leakage, the client urgently needed a trusted partner with the expertise and resources to complete the repair efficiently, safely, and without disrupting the vessel's schedule.

Hydrodynamic Corrections – Maximizing Efficiency After Repairs

When a propeller sustains damage beyond the straightening capabilities of even the largest press equipment, hydrodynamic corrections offer an innovative and effective solution.

Propeller Cropping – Precision Balancing for Odd Number Blade Propellers

Not all propeller damage can be straightened. When blades are fractured, chipped, or excessively bent, cropping becomes necessary. However, cropping an odd-numbered blade propeller presents unique challenges that must be carefully managed.

Rapid Azimuth Thruster Steering Seal Repair

Subsea Global Solutions completed a critical in-water steering seal repair on a cable vessel in San Diego. Our team rapidly designed, fabricated, and installed a custom packing gland housing, ensuring minimal downtime and keeping the vessel on schedule.

Precision Propeller Straightening – Restoring Performance Without Dry Docking

Subsea Global Solutions’ proprietary propeller straightening technology offers a far more efficient and cost-effective alternative to blade cropping.

Emergency Salvage and Retrieval at a Key Water Reservoir

Subsea Global Solutions successfully completed an emergency salvage and retrieval operation at a critical water reservoir in Los Angeles for the LADWP. The reservoir plays a critical role in the region’s water distribution network, making its restoration an urgent priority to ensure reliable water availability for essential operations and infrastructure.

Routine Propeller Polishing and Hull Inspection in Palm Beach, Florida

Subsea Global Solutions was tasked with completing a routine propeller polishing and hull inspection for a commercial vessel docked at the Port of Palm Beach. This service, part of the vessel’s ongoing maintenance schedule, ensured optimal performance and efficiency.

In-Water Thruster Installation and Rudder Bushing Replacement

When a roll-on/roll-off ship (RO-RO) required an immediate thruster installation and rudder bushing repairs, Subsea Global Solutions stepped in to deliver a seamless in-water solution.

Behind-the-Scenes with Subsea Global Solutions with Captain Kate McCue

A big thank you to Captain Kate for sharing a behind-the-scenes look at Subsea Global Solutions in action on a propeller polishing project.

Shell Plate Repair Afloat on an Offshore Supply Vessel

Discover how Subsea Global Solutions expertly repaired a corrosion hole in an offshore supply vessel’s bilge tank. Our Trinidad team delivered a class-approved shell plate replacement, restoring the 90-meter vessel to full operational readiness with minimal downtime.

Restoring Propeller Performance on a Heavy-Load Carrier in Palm Beach, Florida

Discover how Subsea Global Solutions swiftly resolved propeller damage for a heavy-load carrier in Palm Beach, restoring performance and efficiency with precision repairs.

Employee Spotlight: Uwe Aschemeier

We're proud to spotlight Uwe Aschemeier, our Head of Welding Services. With extensive experience as a commercial diver, Uwe is also an award-winning educator and a respected speaker in the underwater welding industry, known for his dedication to advancing industry standards and sharing his expertise worldwide.

Advanced Underwater Welding Training in Long Beach, CA

In October, Subsea Global Solutions held its advanced underwater welding training course in our training center in Long Beach, providing a comprehensive 10-day program designed to hone practical skills and qualify participants for new joint geometries and/or new welding positions.

Thruster Overhaul on SSDU Independencia-2 (formerly La Muralla IV)

In 2024, Subsea Global Solutions completed a complex overhaul of eight thrusters on the La Muralla oil rig, led by our Curaçao-based team, ensuring the rig's peak performance through rapid, on-site servicing.

Grounding Incident Repair in Freeport, Bahamas

In response to a vessel grounding in Freeport, Bahamas, Subsea Global Solutions swiftly mobilized a team of 15 technicians from multiple locations, efficiently securing damaged tanks and enabling the vessel to resume operations, exceeding client expectations through precise coordination and daily updates.

Offshore installation, underwater shell plate damage, class approved repair without drydocking

Class approved shell plate underwater damage repairs to offshore semi-submersible platform without drydocking.

Like it or Not, Robots are Coming!

Since the adoption of the IMO (International Maritime Organization) biofouling guidelines MEPC.207(62) in 2011, there has been a positive sea shift in awareness of biofouling and its dual impacts: invasive aquatic species; and ship-based emissions.

Subsea Global Solutions Delivers Marine Dredging Project to Improve Mooring Access

Subsea Global Solutions completes a marine dredging project to improve mooring access, ensuring safer and more efficient vessel operations.

Internship with Massachusetts Maritime

Subsea Global Solutions partners with Massachusetts Maritime Academy, offering students hands-on internship experience in underwater services.

Employee Spotlight: Maheshvari Hughes

Meet Maheshvari Hughes of Subsea Global Solutions — spotlighting her career journey, expertise, and contributions to our global team.

Container Vessel Steering Repair in Long Beach, California

Subsea Global Solutions was called to assist a large, fully-laden Post-Panamax container vessel that developed steering gear problems. We quickly resolved the problem and got the ship back on track.

Subsea Global Solutions Year in Review & Our 2021 Holiday Message

Reflecting on Subsea Global Solutions’ performance and milestones, with thanks to clients and partners as we look forward to the year ahead.

Scrubber Overboard Spool Pipe Repairs with 5 Year Warranty

The installation of complete SOx scrubber systems is entirely possible without taking the vessel out of the water. Subsea Global Solutions' involvement is focused on precision cutting of the hull penetrations for the sea chest openings and overboard spool pipe installation below the waterline.

Rudder Corrosion Repair & Protection

Subsea Global Solutions repairs galvanic corrosion on both PORT and STBD side rudders on a vessel only 3 months out of dry dock.

Skeg Ripped from Azipod

Subsea Global Solutions executes underwater wet welding on a cruise ship, restoring structural strength while minimizing downtime.

Hull Breach on Tanker

During cargo operations, a submerged pile pierced through the hull of a tanker. Subsea Global Solutions worked together with owner and class to develop repair plan that included the design and installation of an engineered cofferdam without the need for costly drydock delays.

Underwater Services for Offshore Oil and Gas

A Blue-Chip oil & gas company incurred several defects and cracks in a critical attachment member of an FPSO’s hull – Subsea Global Solutions provided these defects the repairs required to allow continued operation.

Underwater Propeller Blade Straightening & Cold Static Loading

Discover how Subsea Global Solutions restored efficiency with underwater propeller blade straightening using cold static loading.

FPSO Bilge Keel Repair

Design flaws together with poor workmanship caused the bilge keel to fracture during operation in several locations. Subsea Global Solutions worked together with the owner and Class to perform permanent underwater wet weld repair on the fractures, without interrupting the production.

Tailshaft Reseating & Stern Seal Repair in Mexico

Subsea Global Solutions reseats a shifted tailshaft afloat and executes a stern seal repair, ensuring vessel reliability without drydock.

Double Bow Thruster Removal in Long Beach, California

Subsea Global Solutions completes a complex double bow thruster removal, showcasing expertise in underwater engineering and vessel support.

Afloat Bow Thruster Repair in Busan, Korea

Subsea Global Solutions delivers an afloat bow thruster repair, restoring full functionality and minimizing downtime for vessel operators.

A Turn-Key SOx Scrubber Spool Pipe Replacement with a 5-Year Coating Warranty

Subsea Global Solutions completes a turnkey SOx scrubber spool pipe replacement with a 5-year coating warranty, ensuring compliance and reliability.

Hull Fracture Repair Near Bilge Keel in Tacoma, Washington

Subsea Global Solutions executes a precise underwater hull fracture repair near the bilge keel, restoring vessel integrity and safety in Tacoma, Washington.

Afloat Rudder Stock Seal Replacement in Texas

Subsea Global Solutions completes a successful afloat rudder seal replacement, providing efficient underwater repair without drydocking delays.

Rudder Restoration & Corrosion Repair in Busan, Korea

Subsea Global Solutions repairs and restores a heavily corroded rudder, extending service life and maintaining vessel safety.

Propeller Blade Straightening After Impact in a Single Shift

Subsea Global Solutions restores efficiency by straightening damaged propeller blades after impact, ensuring optimal vessel performance afloat.

Subsea Global Solutions Removes Anchor Chain Debris Before Vessel's Planned Departure

Subsea Global Solutions removes obstructive anchor chain debris underwater, enabling safe vessel departure and minimizing operational delays.

Propeller Blade Replacement After Contact Damage

Following contact damage, Subsea Global Solutions delivers expert underwater propeller blade replacement to restore vessel performance quickly.

Subsea Global Solutions Exchanges Retractable Thruster on Semi-Submersible Despite Challenges

Subsea Global Solutions successfully completes a complex retractable thruster exchange, overcoming operational challenges to keep vessels moving.

Subsea Global Solutions 2020 Review & Holiday Greetings

A look back at Subsea Global Solutions’ milestones in 2020, celebrating achievements and wishing our partners and clients a successful year ahead.

Emergency Aft Shaft Seal Repair

Subsea Global Solutions rapidly repaired a leaking aft shaft seal, restoring vessel operations quickly and avoiding costly downtime.

Scrubber Installation Without Dry Docking

Subsea Global Solutions delivers turnkey scrubber installations without drydocking. Reduce emissions and stay compliant with minimal vessel downtime.

Underwater Seal Replacement Services

Learn how SGS performs stern tube and shaft seal replacements underwater minimizing downtime and avoiding costly drydocking.

Aft Shaft Bearing Repair in Hong Kong

Subsea Global Solutions completed a complex aft shaft bearing repair in Hong Kong proving no challenge is too difficult for our underwater repair experts.

Propeller Repair Services Worldwide

: From cropping to polishing, Subsea Global Solutions delivers precision propeller repairs worldwide, restoring performance and efficiency fast.

Twin Shaft Seal Repair in the South Pacific

Subsea Global Solutions completed a successful twin shaft seal repair in the South Pacific minimizing downtime with expert underwater solutions.

Underwater Stern Seal Repair in Romania

Subsea Global Solutions divers performed a stern seal repair on a bulk carrier in Romania, delivering safe, efficient results without drydocking.

Hull Cleaning & Biofouling Removal in Korea

Subsea Global Solutions conducted a major biofouling cleaning campaign in Korea, improving vessel efficiency and reducing fuel consumption.

Underwater Oil Leak Repair

Subsea Global Solutions divers executed a complex underwater oil leak repair on a ferry in Canada, showcasing precision and compliance in marine repair solutions.

Propellers: How Smooth is Smooth?

By utilizing a multi-stage polishing process and diver / technicians trained in the proper analysis of the propeller condition, Subsea Global Solutions' process has proven to be an integral part of fuel efficiency programs. The benefits of maintaining a polished propeller have been known for years, but what has not been known is "how smooth is smooth"?