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Town of Smithtown, Suffolk County · North Shore

UNDERWATER MARINE SERVICES
SMITHTOWN, NY

Professional dive crews serving Smithtown and the surrounding waterways. Hull inspections, dock and seawall work, and item recovery — done in the water, no haul-out required.

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Serving Smithtown, NY

LOCAL DIVE CREWS, ON YOUR WATER

Smithtown is our home water. From the Nissequogue River to Stony Brook Harbor and the town basins at Kings Park Bluff and Long Beach, Final Dive Co. knows these waterways firsthand. If your boat or dock sits anywhere along the Nissequogue or the Smithtown shoreline, we're minutes away — with dive crews ready for hull work, piling inspections, and recovery.

Where We Work in Smithtown

Our Smithtown service area covers Stony Brook Harbor, Nissequogue River, and Long Island Sound — including Kings Park Bluff Basin, Long Beach Boat Basin, and Nissequogue River Boat Basin. Don't see your marina or dock? We travel the whole shoreline — call us and we'll come to you.

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What We Do

EVERYTHING BELOW THE WATERLINE

Marine & Boating

  • Boat hull inspection & cleaning
  • Propeller & outdrive inspection
  • Anchor & mooring inspection
  • Raw water intake clearance
  • Zebra mussel inspection

Dock & Waterfront

  • Dock maintenance
  • Piling inspection
  • Seawall inspection & repair
  • Post-storm debris assessment
  • Ice damage inspection

Specialty Services

  • Underwater surveys
  • Underwater photography
  • Item recovery
  • Pool leak detection
Why Hire FDC in Smithtown

CATCH IT BEFORE IT COSTS YOU

No Haul-OutFull underwater assessment right at your Stony Brook Harbor slip.
20–40%Fuel drag from biofouling. A clean hull saves on every trip.
Same-DayFast response for post-storm and ice-damage inspections.
Full ReportDocumented findings delivered after every inspection.
Client Reviews

TRUSTED ON THE WATER

★★★★★

Avoided an expensive haul-out thanks to Final Dive Co. They inspected my 45ft yacht's hull, swim platform, and anchor system in one visit. Clean report and great advice. These guys go where others won't.

Emma · Google Review
★★★★★

We have a private dock and finally found a team we had an excellent experience working with. They provided specialized underwater labor.

Christopher · Google Review
★★★★★

After last winter's ice damage I called Final Dive Co for a seawall and piling inspection. Same-day response, clear plan, saved me from bigger problems. A++++.

Dominick · Google Review

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NEED A DIVE CREW IN SMITHTOWN?

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