Cudjoe Key is a quiet stretch of the Lower Keys — canal-front docks, boats staged for bonefish flats and backcountry runs, and not a marine shop in sight. That's exactly the gap we built 3 Marine to close: certified mobile service in the parts of the Keys the big shops skip.
Certified work, delivered to your dock
You shouldn't have to trailer a boat to Key West or Marathon for a diagnostic that takes a certified technician twenty minutes with the right tools. Our lead technician is a Mercury Marine Certified Technician and an ABYC Certified Master Technician, which means factory-level diagnostics and ABYC-standard electrical work — delivered at your seawall.
What we handle in Cudjoe Key
- Mercury diagnostics & repair — CDS G3 computer diagnostics, scheduled maintenance, lower unit and fuel system service. See Mercury Diagnostics & Repair.
- Marine electrical — wiring, batteries, charging systems, corrosion repair, and electronics installation. Full list: Marine Electrical Services.
- Engine repair & overhaul — compression testing, head gaskets, cooling system rebuilds, powerhead work. Details: Engine Repair & Overhaul.
No haul-out, no lost fishing days
We bring the diagnostic equipment and common parts in the truck. Most Cudjoe Key jobs — from a stubborn no-start to a full electrical trace — close out in a single dockside visit.
Book Cudjoe Key service
Same-week appointments are standard. Call or text (305) 832-1206, email info@3marinekw.com, or book online.
Keep your boat in the water. We'll come to you.