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About Us

About Us

Who We Are

Duncan Seawall was established in 1979 and has the necessary equipment and personnel needed to take on any size project. We have become the area’s largest and most respected marine construction company due to our reputation for providing excellent service, quality workmanship, and dedication to customer relationships. We believe that each and every customer inquiry be addressed in the same manner, no matter the job size. The sales team is committed to return any and all calls within 24 hours, schedule an on-site visit within two days, and submit a written proposal within three days. 

Full Service

We pride ourselves on our ability to assist our customers through every step of their project from the initial permitting process to the full planning and implementation


Duncan Seawall has been Florida’s largest marine contractor since 1979, and that experience shows in the quality of our products and services

Reputation of

We are proud to have built a strong reputation for quality, both in our products and customer service, and it’s something we work everyday to uphold

Committed to Customer Support

We’re committed to providing exceptional care after construction ends to make sure you’re consistently satisfied throughout the lifetime of your project

We're Committed to Service

We maintain a large Customer Service Department dedicated to servicing our own clients as well as other marine contractor construction. We consider no call to be too small or immaterial. Our Service Department is managed by a dedicated Service Manager who handles all in-coming service calls and is committed to responding to each call in less than 24-hours. Tracking, scheduling and completion of each service call is maintained through our Customer Relationship Management System – insuring no customer falls through the cracks. If you are in need of dock, seawall, boat lift, erosion or any other type of marine repair, experience the Duncan Seawall difference.

What It Looks Like to Work With Us

Duncan is your source for all facets of your projects. We keep things in-house, with dedicated customer service teams, a dedicated electrical division, and 25 crews. We can tackle jobs of any shape or size. We’re here with you every step of the way.

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Download Our Product Catalog to View All Our Products & Services

Want to learn more about how Duncan can help you with your marine construction needs?

Download the catalog