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Bern Underwater Contractors has built its foundation on the virtues of professionalism, honesty, and experience. Our resources and flexibility give us the ability to take on projects of all sizes and meet deadlines within budgets. Having worked with the government, foreign commercial clients, private firms etc. Bern Underwater Contractors knows what it takes to deliver a project right.

Our services are designed to serve the marine construction needs of customers with assets located in deep seas, oceans, rivers, and in coastal areas. Our commercial diving expertise and underwater construction services help clients in a variety of industries to meet their unique goals and objectives, from commercial diving & underwater services, to marine, offshore and ROV services. Our team of experts understands the complexities of working in underwater environments and uses the latest technology and techniques to inspect, repair and construct critical foundation structures.

Explore the services we offer and contact us to discuss your project specifications:

Discover Our Underwater Construction Services

Explore our site to discover information on details about how our underwater construction services apply to your needs. Of course, you may contact us at any time to discuss your specific requirements.

General Contracting & Construction Management

At Bern Underwater Contractors, we pride ourselves on giving our clients more than they expect. Whether it’s a negotiated or hard-dollar bid, we fully understand the bidding process and can offer solid numbers based on a clear understanding of job scope. Contracting provides design, construction, management, and maintenance services to an array of clients across multiple industries. We pride ourselves on providing innovative and cost-effective construction solutions for our clients’ varying challenges and requirements on a daily basis.

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Thomas Bernhagen tactfully delivered a project of exceptional quality while staying on schedule and under budget.

– Chris Pfeifer in 2013

Drilling, Completion & Workover

BUC has extensive experience in the design and analysis of marine drilling risers, as well as completion and workover riser systems. We remain at the forefront of drilling and intervention technology innovation – having had major involvement in the development of novel 15k and 20k systems, as well as various implementations of dual gradient equipment.

Rehabilitation and Underwater Construction Services

BUC offers turnkey services for large rehabilitation and construction projects. We also provide diving support to marine construction companies and engineering firms. Either way, you get trained, experienced, knowledgeable personnel working with the resources they need to do the job right.

Offshore Transports & Installation

Bern Underwater Contractors transports and installs offshore structures in a safe, cost-effective, and sustainable manner. Any size any place, we have your offshore installation covered. Bern Underwater Contractors transports and installs offshore structures in a safe, cost-effective, and sustainable manner. No matter the location or complexity, we have the experience and assets required to deliver.

Deepwater Production Systems

BUC riser engineering expertise and experience covers the full range of riser configurations used in the production and export of offshore hydrocarbons. Our core capability is our strength in analysis and engineering of dynamic structures – coupled with a wealth of experience in mechanical and material engineering.



Commercial Diving Services

As a leading provider of commercial diving services, Bern Underwater Contractors specializes in delivering reliable and professional underwater solutions for a wide range of applications. From inspections and maintenance to construction and technical support in marine environments, our team of highly skilled divers is equipped with the latest technology and expertise to handle the most challenging projects with precision and safety.


Projecting long term preventative maintenance starts with our detailed inspection program. The BUC approach to inspection combines in-depth knowledge of industry requirements, specialized training, and advanced diving techniques to assure the quality of each inspection.

Our commercial diving services includes

  • Dive Inspection

  • Preventative Maintenance

  • Marine Construction Support

  • Comprehensive Safety Programs

  • Expert Capabilities

  • Experienced Personnel

  • Engineering Support Services

  • Barrier Net Installation


Marine Construction Services

Bern Underwater Contractors has been a premier provider of marine construction services and support, combining commercial diving expertise and construction know-how to deliver comprehensive solutions to our global customers across diverse industries. From repairing pipelines to erosion control installation, we have the capabilities and experience to handle projects of all sizes and complexities. We take pride in providing the highest quality marine construction services and look forward to speaking with you about your needs and specifications.

We understand the unique challenges of working in the water. We use the latest technology and techniques to inspect, repair, and construct these critical foundation structures and ensure they are safe, reliable and can withstand harsh marine environments.

Our team of skilled professionals has extensive experience in providing complete marine construction services and solutions for various structures, including:

  • Underwater Marine Construction Services and Support

  • Marine Structures & Deep Foundations

  • Turnkey Services

  • Mooring Cell Repairs

  • Maintenance and repair

  • Underwater reconstruction and rehabilitation

  • Seawalls

  • Technical support


ROV Underwater Inspection

Our ROV underwater inspection services utilize remotely-operated vehicles as a tool to augment our diving capabilities. While nothing can replace the dexterity of a diver, utilizing an ROV for underwater inspection services and specific tasks in a project provides greater operational flexibility while adding an additional safety check prior to putting personnel in the water.

Many utility operators require use of an ROV prior to a diver entering the water. A dive site may be checked for the presence of differential pressure, obstacles which could entangle a diver or other potential hazards. ROV underwater inspection can also be used to locate objects and verify depths, which helps in better planning of dives.

Some of our ROV features includes:

  • ROV Pilots and Auto-Pilots Systems

  • Improved Diver Safety

  • Thrusters for superior maneuverability

  • The Deep Trekker Pivot

  • Tooling options and Mobility

  • ROV underwater inspection services