Mercury Marine CertifiedABYC Certified Master TechnicianMobile service · Key West to Marathon
Mobile marine service in the Florida Keys
Mobile service area

Mobile Marine Mechanic in Stock Island, FL

Mercury-certified mobile marine repair on Stock Island — dockside service for commercial boats, liveaboards, and sportfishers. No haul-out. Call (305) 832-1206.

Stock Island is a working waterfront — commercial boats, liveaboards, and charter fleets that need to be back on the water fast, not sitting at a dock waiting on a callback. Because we're based in Key West, Stock Island is one of the closest stops on our route, which usually means the fastest turnaround in our whole coverage area.

Built for boats that work for a living

A boat that earns money can't afford downtime. Whether it's a commercial rig running hard six days a week or a liveaboard cruiser that's home as much as it's a boat, the failures we see on Stock Island tend to be wear-and-use problems: corroded connections, worn impellers, engines overdue for the service they didn't have time to schedule. We diagnose it right the first time so it doesn't come back next month.

Services we provide on Stock Island

  • Mercury diagnostics & repair — CDS G3 computer diagnostics (the same platform Mercury dealers use), scheduled 100- and 300-hour service, lower unit and fuel system work. Full detail: Mercury Diagnostics & Repair.
  • Engine repair & overhaul — for high-hour outboards, inboards, sterndrives, and marine diesel. See Engine Repair & Overhaul.
  • Marine electrical — battery banks, charging systems, wiring and corrosion repair, shore power. Full list: Marine Electrical Services.

We come to the dock, the yard, or the slip

No towing your boat to a shop, no losing a work day to a haul-out. We bring the diagnostic equipment and common parts to wherever your boat sits — marina slip, mooring, or boatyard.

Book Stock Island service

Same-day and same-week appointments are common given how close Stock Island sits to our home base. Call or text (305) 832-1206, email info@3marinekw.com, or book online.

Keep your boat in the water. We'll come to you.