Find a vetted marine contractor in Shelter Island, NY

Who licenses marine contractors in Shelter Island

• Shelter Island's notice to contractors says every contractor or subcontractor working on the island, landscapers included, needs a town license.

State rules and the lookup steps: how to check a marine contractor's license.

What the Town of Shelter Island requires

• The Town Board issues Shelter Island's wetland permits, and the regulated area runs 100 feet back from a wetland's landward edge. The handbook adds state DEC rules for work within 300 feet of a wetland or 100 feet of a fresh water wetland.
• Shelter Island requires a Town Board permit to construct a dock.
• Shelter Island's Town Board will not allow any new bulkheads unless there is a demonstrated imminent peril of destruction of significant structures.
• Shelter Island prohibits new fixed docks, floats, ramps, platforms and similar structures on freshwater bodies the town owns.
• Shelter Island's 2022 fee schedule charges $125.00 for a certificate of completion on docks and bulkheads.

The Town of Shelter Island Building Department handles permits (631-749-0772). Our Town of Shelter Island permit guide covers how to apply, inspections and certificates.

Homes in Shelter Island: what the Census shows

Across the Town of Shelter Island, villages included, the median home was built in 1980, and 28% of homes were built before 1960, 23% before 1940. 95% of homes here are owner-occupied, and 96% are single-family detached houses.

What bulkhead, dock and seawall work costs here

Labor is a large part of any price. Long Island operating engineers and other construction equipment operators earn a median $92,856 a year, from about $62,510 at entry level to $122,757 with experience. Construction laborers earn a median $58,875 a year, from about $39,468 at entry level to $79,154 with experience. (New York State Department of Labor, wages updated to the first quarter of 2026.) Prices come from written estimates; more in the bulkheads, docks and seawalls cost guide.

Before you hire in Shelter Island

• Ask for the license number the work needs here (see who licenses marine contractors above), and check it before you sign.
• Ask who files with the Town of Shelter Island Building Department, and who books the inspections.
• How long do the permits usually take, and what can be done before they arrive?
• What materials will you use, and how long are they expected to last in salt water?