Seawalls Docks Boat Lifts Electrical Commercial Galleries About News CONTACT US Previous Dedicated To Servicing Our Customers Duncan Seawall Full-Service Marine Construction Seawalls, Docks, Boat Lifts, Electrical, & More VIEW OUR PRODUCT CATALOG Next 123 Service Tailored to Your Needs Duncan Seawall Dock & Boat Lift is a full service marine construction company that focuses on the individual building needs of each customer we serve. From large commercial marinas to residential docks, our knowledgeable employees will take care of your needs – from permits to clean up. SUBMIT A SERVICE REPAIR REQUEST Florida's Largest Residential Marine Contractor Since 1979 Southwest Florida's largest marine contractor, Duncan Seawall offers a complete line of waterfront structures and dredging services which can be seen throughout Sarasota, Manatee, Charlotte, Pinellas and other surrounding counties. Our success is attributed to our commitment to quality workmanship and unsurpassed customer service. Seawalls Seawalls must withstand some of the most brutal conditions of any marine structures built today. Let us help you protect your waterfront property. FOR MORE DETAILS Docks Whether you need a dock for your personal watercraft or a new 200 slip marina, Duncan Seawall has the experience and ability to build a dock you will be proud of for years to come. FOR MORE DETAILS Boat Lifts Duncan Seawall installs Golden Boat Lifts and has been named Golden’s number one worldwide dealer every year for the past decade. FOR MORE DETAILS We made a wise choice Committed to Customer Satisfaction "You have created a culture within your organization that is committed to customer satisfaction which held up in spite of my hectic demands. We regularly hear the term “Customer Service” and your organization is proving it still exists today! You should be proud of your accomplishments." 123 Latest Blog Posts Take a look at the latest information from Duncan Seawall about docks, seawalls, and other marine construction news. How to Keep Your Boat Safe at Night and While You're Away November 22, 2021 Obtaining the boat of your dreams can require a lifetime of careful planning and saving. But, unfortunately, all of that hard work can be undone in... READ POST 5 Reasons Why Seawall Fails and How It Affects Your Property Value November 15, 2021 As a waterfront property owner, your seawall is extremely important. If neglected, it may not only endanger your beautiful paradise, but also affect... READ POST What is a Dock Box and Why Should I Have One? November 8, 2021 If you've spent any amount of time around the water, you know that having enough storage room is super important. It can be a real pain to tote all... READ POST Duncan Seawall Dock & Boat Lift is Southwest Florida's largest full-service marine contractor. CONTACT INFO 1714 Independence Blvd Sarasota, FL 34234 Phone: (941) 999-3266 Contact Us ADDITIONAL LINKS Resources Gallery Electrical Services Dredging Product Catalog Seawall Construction Golden Boat Lifts SUBSCRIBE TO OUR BLOG Email* SCC - Specialty Contractor License | CGC - General Contractor License | Marine - A1346 | CGC - 1517864 | Electrical - EC13005773 Privacy Policy Inbound Marketing by Nextiny