Proven Excellence in Submarine Modernization
Trusted by the U.S. Navy and leading shipyards nationwide, we deliver full‑spectrum submarine modernization and repair solutions. From scheduled maintenance to complex overhauls, our teams operate within a NAVSEA‑authorized SUBSAFE program to execute work on time, on budget, and to the highest standards of safety, reliability, and performance.
Safety
We adhere to the most stringent marine and defense standards, ensuring every component meets critical safety and compliance requirements.
Reliability
Our proven processes and rigorous quality controls deliver components and systems that perform flawlessly under demanding conditions.
Performance
Precision engineering and advanced manufacturing capabilities enable optimal performance for mission-critical applications worldwide.
Specialized Capabilities that Strengthen Your Workforce
We provide scalable, NAVSEA Note 5000-authorized support to meet the demands of high-consequence naval projects. Trusted by public and private shipyards, we deliver dependable, high-quality results that make us the trusted choice for mission-critical work.
- Depot-level availabilities and emergent global repairs
- Ship, ordnance, and temporary alteration (SHIPALT, ORDALT, TEMPALT) implementation
- A deep technical bench and zero-defect execution
Integrated Shipyard Collaboration and Technical Support
We collaborate with both public and private shipyards to deliver seamless maintenance and engineering services.
- Waterfront engineering and on-site test support
- Precision laser alignment and sphericity measurements
- Fairwater and retractable bow plane overhaul
- Hatch and seal repair with watertight integrity testing
- Structural modifications under Unrestricted Operations Maintenance Requirements Card (URO/MRC) standards
- Emergency and secondary propulsion motor replacement
- Full piping and valve repair (air, seawater, freshwater, hydraulic)
- Vertical launch system (VLS) and hatch actuator modernization
- Signal and weapons system modernization
- Sonar transducer and anchor system upgrades
- SUBSAFE and Deep Submergence Systems – Scope of Certification (DSS-SOC) maintenance
- Compliance-driven watertight integrity testing
End-to-End Engineering, Design, and Execution
We provide comprehensive lifecycle support for submarine systems and mission-critical components.
- Sail mast and antenna installation/removal
- Deep Submergence Systems (DSS) logistics and lifecycle planning
- Pressurized Rescue Module (PRM) repair and overhaul
- DSS fit-ups and TEMPALT engineering
- Technical work document and job material list development
- Project engineer oversight for complex tasks
- Level III NDT services (UT, PT, ET, MT, VT)
Submarine Systems Repair and Upgrades
We specialize in precision repairs and upgrades across a wide range of systems.
- Air, seawater, hydraulic, and trim/drain systems
- Watertight doors, hatches, and scuttles
- Torpedo launch systems and auxiliaries
- Sail systems, including ventilation valves
- Mast and antenna maintenance and alignment
- Hull framing and structural repair
- Tooling, fixture, and component manufacturing
- Support platforms for Virginia-class submarines
Why Oceaneering for Submarine Modernization?
We combine SUBSAFE-certified personnel, proven shipyard experience, and precision engineering to deliver results that meet or exceed Navy standards. Whether you're planning a major availability or responding to an emergent repair, we are your go-to choice for submarine modernization and repair that performs under pressure.
Frequently Asked Questions
Explore our submarine repair capabilities through these frequently asked questions covering our specific authorizations, services, and systems.
We deliver full‑spectrum submarine modernization and repair services, including scheduled maintenance, complex overhauls, emergent global repairs, SHIPALT/ORDALT/TEMPALT execution, and engineering support performed within a NAVSEA‑authorized SUBSAFE program.
Yes. Our teams operate under a NAVSEA‑authorized SUBSAFE program and provide NAVSEA Note 5000‑authorized support for modernization, overhaul, and engineering activities across all U.S. Navy submarine platforms.
Absolutely. We perform depot‑level availabilities, emergent global repairs, and rapid‑response technical support to keep submarine systems mission ready.
We execute Ship, Ordnance, and Temporary Alterations (SHIPALTs, ORDALTs, and TEMPALTs), including engineering, installation, testing, and documentation aligned with NAVSEA standards.
We collaborate with both public and private shipyards to provide waterfront engineering, on‑site test support, SUBSAFE and DSS maintenance, structural modifications, propulsion system replacements, and modernization of critical systems such as VLS and sonar.
Our engineering capabilities include end‑to‑end design and execution, DSS logistics planning, PRM overhaul, TEMPALT engineering, technical work document development, project engineer oversight, and Level III NDT services (UT, PT, ET, MT, VT).
We specialize in precision repairs and upgrades across air, seawater, hydraulic, and trim/drain systems, submarine control systems (fairwater planes and retractable bow planes), watertight doors and hatches, torpedo launch systems, sail systems, masts and antennas, hull framing, structural components, and support platforms for Virginia‑class submarines.
Yes. We perform SUBSAFE and Deep Submergence Systems (DSS) maintenance, ensuring compliance with NAVSEA requirements and maintaining the highest standards of safety and reliability
We combine SUBSAFE‑certified personnel, proven shipyard experience, precision engineering, and a zero‑defect execution culture. Our teams deliver reliable, high‑quality results for major availabilities, emergent repairs, and mission‑critical modernization projects.
Yes. We provide comprehensive lifecycle support, including DSS logistics planning, PRM overhaul, engineering documentation, rotatable asset support, and long‑term sustainment strategies for mission‑critical submarine components.
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Oceaneering offers best-in-class products and solutions, backed by unparalleled quality, reliability, and global support. Fill out the inquiry form to start a conversation today.