All Your Underwater Construction Needs in One Place

Commercial Diving and Marine Construction Since 1982

Maintaining & Constructing Underwater Structures INLAND, COASTAL & OFFSHORE

Whether you need a new sanitary pipeline installed along the shoreline or a piling inspection of your crude oil terminal, Underwater Resources, Inc. in San Leandro, California can help you out. We provide marine construction and commercial diving services to clients in the Greater Bay Area, throughout California, Nevada and beyond.

Who We Are?

We are a trusted partner of utility companies, general contractors and infrastructure service providers. Our team is composed of talented professionals with a collective experience of more than 100 years.

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Our Services


Marine Construction

We perform offshore, coastal, and inland construction and commercial diving projects in, on and around water and other liquid mediums. Inland projects are performed for government agencies, private and commercial operators along waterways, within industrial plant facilities and on dams. Our team has the expertise to safely perform services upon active UW structures even under extreme site and operational conditions.

Inspection Services

We perform underwater inspections using remotely operated vehicles (ROVs), sonar systems, other remote imaging UW instruments and with divers. Whether it is for maintenance or construction purposes, our skilled divers and technicians are highly capable of meeting any specific underwater structure assessment needs. We also conduct geophysical, oceanographic and bathymetry surveys and perform nondestructive (NDT) and destructive materials testing when more detailed surveys and investigations are required.



Our industry experts have well over 100 years of combined field experience in commercial diving and construction. Our consulting services include constructability reviews, project planning, and estimating.


Our offshore, coastal and inland marine inspection, consulting, and repair projects have been performed along both East and West US coastlines, throughout all Western States and Alaska, Canada and Mexico, several Pacific Rim island countries, South Korea, Central and South America.

Online Learning Resources

Are you looking for reading resources to enhance your knowledge about marine construction? Maybe we can help! Check out our list of useful resources today.

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Contact Us

For more information, reach out to us today. We would be happy to answer all your questions and inquiries.