Commercial Diving.
Marine Construction.

Our Services

Commercial Diving

Underwater mechanical structures, ships, bridges, dams and water supply systems are just a few of the structures we maintain for our clients.


Utilizing mechanical, hydraulic and diver assisted dredging techniques, we remove unwanted material from many different underwater environments.

Marine Construction

Performing both the above and below water services makes Chicago Underwater your “One Stop Shop” for Marine Services.

35+ Years of Inland and Offshore Experience

Contact us today and let our experience help guide your project to a successful completion.

Highlight Projects

Dredging Hurricane Sandy

Hydraulic and Mechanical Dredging used to remove sediments from 10 marinas, 7 marinas at the same time!! 

Chicago River Salvage

Equipment to refurbish the Chicago Riverwalk Goes to the Bottom!

Not Just Another Dam Job

Winter 2017, 2018, & 2019 our crews refurbished Five (5) Dams on the Upper Mississippi River

Our Customers Include:





Paper Processing

Power Generation


Contact us Today