Crocker Marine Services designs, builds, and repairs docks, seawalls, and boat lifts on Siesta Key, Florida, in Sarasota County. Siesta Key is a barrier island best known for its quartz-sand beaches, with waterfront property mostly facing Roberts Bay, the Grand Canal — a dredged canal system on the key's north end — or Big Pass toward the Gulf. Sarasota County and, on much of the key, HOA architectural rules both weigh in on waterfront work here.
Marine construction services on Siesta Key
Crocker Marine is a full-service marine contractor — docks, seawalls, boat lifts, dredging, and inspections, in-house. See the full range of services or browse completed projects across Southwest Florida.
Docks
Grand Canal and Roberts Bay frontage call for different designs — the canal is a controlled, dredged system, while the bay is open and tidal. We build new docks and handle repair, replacement, accessories, and canopies and shade covers.
Seawalls
Grand Canal and bay-front seawalls on Siesta Key are a mix of concrete and vinyl, and many are decades old. We install and replace both and keep sound walls going with repair and maintenance before a replacement or new wall.
Boat lifts
We install and service boat lifts from Coastal Boat Lifts in Fort Myers, sized to the vessel and the canal or bay depth. Repair covers cables, motors, bunks, and controls.
Dredging
The Grand Canal and shallow bay pockets can shoal over time. Our residential dredging restores permitted depth, permitting handled.
Marine inspections
Given Siesta Key's values, our marine inspections give buyers, sellers, and insurers a written condition report on the dock, seawall, and lift.
Permits and local conditions on Siesta Key
Marine construction on Siesta Key is permitted through Sarasota County, along with the Florida Department of Environmental Protection and U.S. Army Corps of Engineers for work below the mean high-water line. Many Siesta Key communities carry their own HOA architectural rules on top of the county code.
- The Grand Canal. A dredged canal system on the key's north end, distinct in character from the open Roberts Bay frontage further south.
- HOA architectural rules. Many Siesta Key communities layer their own design standards on top of county permitting.
- Sensitive shoreline. The island's beach and nearshore environment gets close state and county environmental review.
- Manatee zones. Slow-speed protections cover Roberts Bay and the connecting waterways.
Why Siesta Key homeowners choose Crocker Marine
- True Price Guarantee. The quoted price is the price you pay — no change orders, excluding rock excavation, client-requested changes, or specialty permitting.
- Licensed and insured. Florida certified building contractor CBC1266139, with $2 million in insurance coverage.
- Regional reach. More than 60 years of combined experience and a showroom at 2101 McGregor Blvd in Fort Myers.
- Warranties. A 15-year seawall warranty and a 1-year dock warranty.
Siesta Key marine construction FAQ
Does my HOA need to approve dock or seawall work on Siesta Key?
Many Siesta Key communities have their own architectural rules in addition to the county permit. We check whether yours applies before designing.
Who permits dock and seawall work on Siesta Key?
Sarasota County, plus FDEP and the Army Corps for in-water work.
What's different about the Grand Canal versus Roberts Bay?
The Grand Canal is a dredged, controlled canal system on the key's north end; Roberts Bay is open, tidal water further south. Dock and seawall design differ between the two.
Can the Grand Canal be dredged if it's too shallow?
Often, yes, through permitted dredging to restore the design depth. We check mean low water first.
Do you work throughout Siesta Key, not just one area?
Yes. Request a free estimate or call (239) 841-9674.