Boston's Leading
Marine Construction Company

about us

Over 100 long years of marine construction excellence with quality at it's best

Coastal Marine Construction LLC is a 100% woman-owned construction company specializing in marine and heavy civil construction. Coastal Marine was founded in 2013 by Seana Kelley. Our team includes experienced industry professionals with a combined experience of over 100 years in the marine construction business.

We are are Boston’s leading marine construction company for demolition, pile driving, earth support, bridge, pier and deck construction, diving, and marine salvage. All of our work is self performed and never sub contracted out. We own all of our own equipment which includes a variety of heavy marine equipment including barges, tugboats, push boats, hammers, cranes, and leads. We take pride in delivering you only top quality products and services.


We are industry leaders and produce the most reliable and cutting edge solutions you are looking for.

Safety First

Our company-wide safety protocols are in place at all times and conform to OSHA standards.

On time

We strive to surpass our clients’ expectations by delivering quality projects on time.

Within Budget

Our industry leading project management have a proven track record of coming in  on budget.

The only place where you’ll get the perfect solution for all your marine construction needs.

Coastal Marine Staff
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our capabilities

Some Of The Key Services We Provide

Pile Driving

We have driven, tested, and extracted thousands of piling safely and economically, while meeting environmental concerns

Sheet Piles & Cofferdams

Working around water poses its challenges. Coastal can provide several different options in working below the waterline.

Timber Pier Construction

Piers & Wharf's

Coastal has the technical expertise and equipment to provide a wide variety of commercial grade piers and wharf’s. 


Timber Pier Construction

We construct high-end timber piers for commercial properties using our fleet of best of breed marine construction equipment.

Riprap Construction


Our highly effective revetment designs can help protect your shorelines and cliffs against erosion during heavy rain and flooding. 

Rip Rap Construction

RipRap Construction

Riprap is highly durable and natural looking treatment. It is a highly effective and easily repairable protection system against erosion.

our affiliations

We Are Proud To Be Associated With The Following

womans business enterprise
disadvantaged business enterprise
woman owned business