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Subsea Global Solutions is the only company capable of delivering a complete turn key demountable thruster exchange including experienced service technicians for inboard and outboard operations, stand jacks systems, diving systems, and experienced diver/technicians.

Afloat Demountable Thruster Exchange

Subsea Global Solutions is the diving contractor of choice for underwater exchange of demountable azimuthing thrusters. We are the only company capable of delivering a complete turn key package including experienced service technicians for inboard and outboard operations, stand jacks systems, diving systems, experienced diver/technician, allowing Subsea Global Solutions to have complete coordination on the job coupled with detailed planning ensure that the "inboard" operations being performed are synchronized with diving operations "outboard" of the vessel. This proven model has delivered on time and budget every time.

In addition to turn key removal and replacement of azimuthing thrusters, Subsea Global Solutions can provide complete overhauls of all makers with OEM parts or OEM equivalent parts. With years of experience exchanging azimuthing and tunnel thrusters in the most remote locations of the world, Subsea Global Solutions has the industry leading expertise and local vetted partners to support the offshore industry in all its areas of operation throughout the world.

We have pioneered the methods of exchanging of underwater demountable azimuthing thrusters without the need for expensive and weather dependent crane barges. Developing fully engineered plans of thruster exchange utilizing our buoyancy control procedures, large demountable units can be simply, safely and reliably exchanged in sea states up to Beaufort 2 using the rigs crane.

Have an underwater maintenance or repair service request?

Subsea Global Solutions provide underwater maintenance and repair services to your marine assets. Contact us to request a service quote today!
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Overhauling demountable thrusters, commercial diving solutions, offshore semi-sub drillship

Offshore Asset Maintenance, biofouling and repositioning support

Enjoy our short trailer on Offshore Asset Maintenance services.

Got heavy biofouling? You need a PORTABLE C-ROV!

Enjoy our short trailer on our Cleaning Remote Operated Vehicle, the PORTABLE C-ROV, ideally suited for heavier macrofouling before repositioning your vessel or offshore asset.

Overhauling demountable thrusters, commercial diving solutions, offshore semi-sub drillship

Case Studies

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.

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Charting a Course in Welding and Diving

Subsea Global Solutions' Whitney McDonald Shares Her Journey in Welding and Diving with AWS Cincinnati.

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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.

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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.

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Underwater Weld Repairs – Requirements and Execution

Underwater welding, especially underwater wet welding, is gaining more and more acceptance. This article from Welding & Cutting Magazine takes a deep dive into types, procedures, and codes.

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Skeg Ripped from Azipod

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

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

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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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

Scrubber Installation Without Dry Docking

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

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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.

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Propeller Shaft Replacement and DNV Approved Rudder Horn Repair while Afloat

Subsea Global Solutions (SGS) recently completed a challenging underwater repair for a commercial ship owner whose vessel had suffered severe grounding damage including a badly damaged propeller, partial loss of the rudder horn, rudder damage, and even...

View Full Case Study

DryDock Magazine Interview: The Big 3Rs of Rudder Repairs Afloat

DryDock Magazine recently interviewed Harun (Aaron) Duzgoren (CCO), and Kevin Peters (Director, Technical Sales & Environmental Services) about a significant 100+ tonne rudder repair operation carried out afloat on a fully laden mainline container vessel.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

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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.

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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.

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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.

View Full Case Study

Propeller Shaft Replacement and DNV Approved Rudder Horn Repair while Afloat

Subsea Global Solutions (SGS) recently completed a challenging underwater repair for a commercial ship owner whose vessel had suffered severe grounding damage including a badly damaged propeller, partial loss of the rudder horn, rudder damage, and even...

View Full Case Study

Underwater Propeller Blade Straightening & Cold Static Loading

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

View Full Case Study

Propeller Blade Replacement After Contact Damage

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

View Full Case Study

Propeller Repair Services Worldwide

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

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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.

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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.

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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.

View Full Case Study

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"?

View Full Case Study

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.

View Full Case Study

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.

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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.

View Full Case Study

Underwater Seal Replacement Services

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

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

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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.

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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.

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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.

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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.

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DryDock Magazine Interview: The Big 3Rs of Rudder Repairs Afloat

DryDock Magazine recently interviewed Harun (Aaron) Duzgoren (CCO), and Kevin Peters (Director, Technical Sales & Environmental Services) about a significant 100+ tonne rudder repair operation carried out afloat on a fully laden mainline container vessel.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

Underwater Seal Replacement Services

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

View Full Case Study

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.

View Full Case Study

Hull Cleaning & Biofouling Removal in Korea

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

View Full Case Study

DryDock Magazine Interview: The Big 3Rs of Rudder Repairs Afloat

DryDock Magazine recently interviewed Harun (Aaron) Duzgoren (CCO), and Kevin Peters (Director, Technical Sales & Environmental Services) about a significant 100+ tonne rudder repair operation carried out afloat on a fully laden mainline container vessel.

View Full Case Study

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.

View Full Case Study

Skeg Ripped from Azipod

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

View Full Case Study

Underwater Propeller Blade Straightening & Cold Static Loading

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

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

Propeller Blade Replacement After Contact Damage

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

View Full Case Study

Underwater Seal Replacement Services

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

View Full Case Study

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.

View Full Case Study

Propeller Repair Services Worldwide

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

View Full Case Study

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.

View Full Case Study

Hull Cleaning & Biofouling Removal in Korea

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

View Full Case Study

DryDock Magazine Interview: The Big 3Rs of Rudder Repairs Afloat

DryDock Magazine recently interviewed Harun (Aaron) Duzgoren (CCO), and Kevin Peters (Director, Technical Sales & Environmental Services) about a significant 100+ tonne rudder repair operation carried out afloat on a fully laden mainline container vessel.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

Skeg Ripped from Azipod

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

View Full Case Study

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.

View Full Case Study

Underwater Propeller Blade Straightening & Cold Static Loading

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

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

Afloat Rudder Stock Seal Replacement in Texas

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

View Full Case Study

Rudder Restoration & Corrosion Repair in Busan, Korea

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

View Full Case Study

Propeller Blade Replacement After Contact Damage

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

View Full Case Study

Underwater Seal Replacement Services

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

View Full Case Study

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.

View Full Case Study

Propeller Repair Services Worldwide

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

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

Hull Cleaning & Biofouling Removal in Korea

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

View Full Case Study

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.

View Full Case Study

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.

View Full Case Study

Underwater Demountable Thruster Exchanges & Repairs

Hull Cleaning

Afloat Demountable Thruster Exchange

Subsea Global Solutions is the diving contractor of choice for underwater exchange of demountable azimuthing thrusters. We are the only company capable of delivering a complete turn key package including experienced service technicians for inboard and outboard operations, stand jacks systems, diving systems, experienced diver/technician, allowing Subsea Global Solutions to have complete coordination on the job coupled with detailed planning ensure that the "inboard" operations being performed are synchronized with diving operations "outboard" of the vessel. This proven model has delivered on time and budget every time.

In addition to turn key removal and replacement of azimuthing thrusters, Subsea Global Solutions can provide complete overhauls of all makers with OEM parts or OEM equivalent parts. With years of experience exchanging azimuthing and tunnel thrusters in the most remote locations of the world, Subsea Global Solutions has the industry leading expertise and local vetted partners to support the offshore industry in all its areas of operation throughout the world.

We have pioneered the methods of exchanging of underwater demountable azimuthing thrusters without the need for expensive and weather dependent crane barges. Developing fully engineered plans of thruster exchange utilizing our buoyancy control procedures, large demountable units can be simply, safely and reliably exchanged in sea states up to Beaufort 2 using the rigs crane.

Looking for underwater maintenance and repair services?

Contact Us 24/7
Request Service