Expert Underwater Services for Power and Energy Transmission Infrastructure

Much of our energy and utility infrastructure – from power plants to terminals to pipelines – relies on submerged or partially submerged components. These systems require regular inspection, maintenance, and repair to ensure safety and performance. Around the world, power, energy, and gas utilities rely on UCC’s expert commercial diving services to support the safe and efficient operation of this critical transmission infrastructure.

Our team of divers, supported by advanced ROV inspection technology, uses specialized methods to assess and address structures that are often exposed to harsh environmental conditions, including biofouling, corrosion, and sediment buildup in oil and gas transmission operations, such as:

  • cooling water intakes and discharges
  • submerged pipelines
  • outfalls
  • transmission tower structural supports

Without routine inspection and maintenance, these systems can experience reduced efficiency, unplanned outages, or costly structural failures.

Since 1969, UCC has provided underwater services for power and gas infrastructure, helping utilities proactively manage risk, maintain regulatory compliance, and extend asset life. Our ADCI-certified dive teams provide safe, reliable, and cost-effective solutions for both planned maintenance and emergency response – ensuring critical infrastructure remains operational and resilient.

Comprehensive Commercial Diving Services for Utilities

Comprehensive Commercial Diving Services for Utilities

UCC provides underwater inspection for power utilities, including intake and discharge systems, pumps, traveling water screens, cooling towers, pipelines, and storage tanks. Using high-definition video surveys, coating evaluations, and non-destructive testing, we detect potential issues before they impact operations.

Maintenance Services

Preventive and corrective underwater maintenance at power, energy, and gas transmission facilities ensures continuous performance and minimizes costly downtime. Services include dredging, cleaning, mechanical adjustments, and operational support for submerged infrastructure.

Repair & Rehabilitation

Our underwater utility infrastructure repair capabilities cover emergency leak response, concrete restoration, pier and pile repair, coating remediation, and traveling water screen replacement. UCC divers handle critical repairs efficiently to restore functionality and extend asset life.

Technical Services & Welding

UCC offers advanced underwater welding for oil and gas systems and components, including TIG, MIG, and plasma arc cutting for structural modifications and emergency repair work. Our approach is tailored to the unique requirements of each facility, ensuring safe and durable results and often includes mock testing in test tanks prior to ever arriving on site.

Comprehensive Project Management

From planning and mobilization to execution and reporting, UCC provides full lifecycle support for complex projects. Our teams manage multi-year service contracts, emergent work, and large-scale infrastructure rehabilitation with precision and reliability.

Specialized Underwater Diving Capabilities

With underwater power and gas services successfully performed across six continents and dozens of countries, UCC brings proven expertise that delivers safe, efficient, and effective results.

Our company is widely recognized for “industry firsts” in underwater environments – from the first recorded nuclear dive to the first dry-box weld repair. Organizations trust UCC to execute even the most demanding projects, and our team routinely provides specialized underwater and diving services for power and gas utilities, including:

  • Contaminated water diving
  • Strong current & low- or zero-visibility diving
  • Confined space diving
  • Deep water diving
  • Complex mollusk remediation and aquatic growth control
  • Coating inspection, repair, and application
  • Emergency response for submerged leaks and structural damage
  • Underwater concrete repair and structural modification
  • Heavy construction project diving, including underwater welding

Our team is up to your toughest challenge. Reach out to discuss your next underwater project, and learn how we can help.

A Trusted Leader in Commercial Underwater & Diving Services

UCC has supported power generation, energy transmission, and utility infrastructure facilities since 1969, delivering specialized dive services for complex and performance-critical environments. Our team brings proven expertise in nuclear, fossil, hydroelectric, and gas transmission systems, with the technology, equipment, and processes that effectively maintain and repair critical submerged infrastructure.

What separates us is our strong, safety-first culture and deep field experience. As a company founded and led by divers, our processes have been built to provide unsurpassed excellence. We continually invest in training, equipment, and pre-project preparations – so we arrive on site ready to complete efforts safely, quickly, and with minimized disruption. We have a proven ability to execute both routine and emergent work in demanding conditions, acting as a trusted partner for power and gas utilities that require precision, reliability, and minimal disruption to operations.

Key qualifications include:

  • Operating since 1969 in commercial diving and underwater utility services
  • ADCI-certified dive teams with advanced training
  • ISNetworld RAVS Plus participant, demonstrating top HSE standards
  • Global & domestic coverage with offices in CT, MD, MI, SC, TN, TX, WI, England, and field partners in Asia
  • Proven record for rapid response, emergent work, and multi-year contracts

Frequently Asked Questions

Power generation facilities, gas terminals, and transmission systems rely on a wide range of underwater components that require regular inspection, maintenance, and repair. Commercial divers and ROVs are used to assess critical assets such as water intake and discharge systems, pumps, traveling water screens, cooling towers, pipelines, storage tanks, outfalls, valves, and structural supports. These inspections help ensure system integrity, optimize performance, and support regulatory compliance.

Our ADCI-certified dive teams follow rigorous safety protocols, maintain OSHA compliance, and wear specialized PPE for hazardous conditions. Often, this includes developing processes, tools and procedures specifically designed for your facility in our test tanks. Customers are welcome to come on-site to a UCC facility to oversee this process development. It minimizes diver time in the challenging environment, as well as ensures our efforts are performed effectively and seamlessly when we are on site. We also perform a variety of pre-dive inspections using ROVs, so when divers enter the water, they have the critical information and preparation needed to execute the work safely and efficiently.

Yes. We partner with power and gas utilities to deliver routine inspections tailored to each facility’s unique operations. Findings are documented in detailed reports and may include video documentation and non-destructive testing results when issues are identified. In many cases, our team can also perform necessary repairs or replacements of equipment and structures, helping facilities maintain efficiency and prevent unplanned outages. Learn more about our services.

Certifications and safety standards are critical when selecting a commercial diving company. ADCI certification is one of the most rigorous in the industry, demonstrating that a company meets strict, third party-verified standards for safety, compliance, and operational excellence. ISNetworld RAVS Plus certification further indicates strong safety performance, including comprehensive on-site assessments of health, safety, and environmental standards. Companies should also comply with OSHA standards and ensure dive teams maintain current first aid and CPR certifications.

Even with routine inspection, power and gas utilities and transmission systems can experience unexpected failures – from equipment breakdowns to pipeline leaks to clogs that block intake systems. Companies with proven project successes, years of process development, and a network of locations can respond quickly to address emergent issues. With UCC’s strategically located offices, best-in-class processes, and deep technical experience we are able to provide rapid deployment to respond to emergent underwater repair needs, often sending teams to job sites within hours of a call.

Turnkey project management for large-scale power or gas infrastructure repair requires a comprehensive range of services to ensure projects are executed safely, efficiently, and with minimal disruption to operations. These typically include project planning and engineering, dive operations, specialized technical services, inspection and documentation, and final project delivery. This approach allows a single provider to manage all phases of the project – from initial assessment and execution to reporting and completion – reducing risk, improving coordination, and ensuring accountability throughout the entire process. Contact our expert team to learn more about our project management capabilities.

Industries Served Beyond Power & Energy Transmission

Since 1969, UCC has been a trusted provider of commercial diving, underwater inspection, maintenance, and repair services for a wide array of industries including a wide variety of power infrastructure applications. Talk to our experts – as a premier underwater services company, we are ready to meet your inspection, maintenance, and repair needs for your power, energy, and gas transmission systems.

Power Generation
Fossil
Hydro
Nuclear
Bridges
Water Utilities

Expert Commercial Diving for Underwater Utility Infrastructure Repair & Maintenance

From rapid response and emergent work to large-scale, multi-year service contracts, UCC delivers a full suite of underwater services for power and gas transmission systems. Our experienced teams provide inspection, maintenance, repair, and technical support, ensuring reliable, safe, and cost-effective solutions for your submerged utility infrastructure.

Inspection

Marine Services

Nuclear Services

Dewatering Solutions

Contact Our Experts

With extensive experience in underwater and dive services for utility companies since 1969, UCC is the trusted choice for underwater inspection, maintenance, repair, and rehabilitation of power and gas infrastructure. Our commitment to safety, quality, and innovative solutions ensures projects are completed on time, within budget, and with minimal downtime.

 

Contact UCC today to discuss your next underwater project and leverage the UCC advantage.