What We Do
Complete Marine Mechanical & Mobile Boat Repair.
G.P.T Marine provides expert diagnostics, annual services, rewires, repowers, general repairs & tune-ups, and mobile dockside service across Key Largo, Islamorada, Marathon, and the Florida Keys. Call 786-283-1472 — no job too big or too small.
Diagnostics & Engine Repair
Computerized diagnostic testing and expert repair for outboards and sterndrives. We track down elusive electrical, fuel, and mechanical faults that stump other mechanics.
Our highly experienced technicians pinpoint the real root cause fast, saving you from unnecessary parts and getting you back on the water.
Annual Services & Maintenance
Scheduled 100-hour and annual service, oil & filter changes, tune-ups, fuel system flushes, spark plugs, lower unit servicing, and corrosion protection.
Reliable, turn-key performance season after season — no job too big or too small for our crew.
Marine Rewires & Electrical
Complete vessel rewiring, custom backlit switch panels, Simrad & Garmin electronics integration, battery bank configurations, and clean saltwater-ready rigging.
Eliminate corroded terminals, shorts, and no-starts with clean, labeled, marine-grade backlit switchboards and wiring.
Repowers & Engine Installation
Full repower service — removing old engines and rigging fresh Mercury, Yamaha, or Suzuki powerheads and outboards with proper controls, fuel, and wiring.
A fresh, reliable powerplant installed and sea-tested by experienced marine technicians you can trust.
Mobile Marine & Dockside Service
On-water, dockside, and ramp service across the Florida Keys. Sea trials, on-site troubleshooting, and emergency callouts directly to your slip, lift, or rental.
No trailering hassle — we bring master-level tools and parts right to your dock, lift, or marina.
General Repairs & Helm Rigging
Helm control rebuilds, throttle and shift cables, steering systems, custom dash panels, pumps, and tune-ups that keep your boat running smooth and responsive.
Honest, fair-priced repairs that save your trip — we've rescued countless boaters on their Florida Keys vacations.
Need Diagnostics, a Repower, or Dockside Service?
Call G.P.T Marine. Whether your engine has a mystery electrical fault, you need a complete rewire or repower, or you need emergency mobile service, we respond fast with honest, experienced craftsmanship.