Neptune Marine Sevice

Neptune Marine Sevice Neptune Marine Service | St. Augustine
🚤 Mobile Marine Repair & Diagnostics
⚙️ Outboard • Inboard • Electrical • Maintenance
📍 Serving St.

Augustine & surrounding areas
📞 904-916-4604
🔧 Fast, professional, and dependable marine service/ we come to you Neptune Marine Service provides professional mobile boat repair and marine maintenance throughout Jacksonville, St. Augustine, and surrounding Northeast Florida areas. We service outboard and inboard engines, marine electrical systems, diagnostics, no-start issues, steering, controls, c

ooling systems, PWCs, and boat trailers. Our mobile service allows us to work at your dock, marina, driveway, or storage location, helping reduce downtime and improve convenience. We work with major brands including Yamaha, Mercury, MerCruiser, Sea-Doo, and Yamaha WaveRunners. Neptune Marine Service focuses on clear communication, proper diagnostics, and dependable workmanship to help keep vessels operating safely and reliably. Contact us to schedule service

Marine services right to your DoorNeptune Marine Sevice 904-916-4604
04/08/2026

Marine services right to your Door
Neptune Marine Sevice
904-916-4604

03/22/2026

These thermostats hadn’t been serviced in a long time — completely corroded and packed with calcium and salt buildup. While flushing your engine helps, it does NOT replace routine maintenance.
When thermostats get clogged like this, they can’t regulate temperature properly, leading to:
🔥 Overheating
⚙️ Poor engine performance
💧 Internal corrosion
💸 Expensive repairs down the road
Regular service keeps your cooling system working the way it should and protects your engine investment. Don’t wait until you’re stranded on the water.
✅ Preventive maintenance saves engines
✅ Saltwater + heat = buildup over time
✅ Service intervals matter
If your engine hasn’t had a cooling system service in a while, it may be time.
📍 Northeast Florida Mobile Service
📞 904-916-4604

03/10/2026

Hard at work making sure your boat stays in top shape! At Neptune Marine Service, we take marine repairs seriously… but we still like to have a little fun along the way.
⚓ Mobile Marine Mechanic
📍 Serving Jacksonville • St. Augustine • St. Johns
📞 Call or Text: 904-916-4604
🛥️

03/06/2026

Well… looks like this Crusader just checked into Neptune Marine Surgery Center. ⚓🔧
Compression numbers weren’t looking good, so it’s time to open her up and see what’s really going on inside.
Another day in the life of a marine mechanic here in Jacksonville.
Neptune Marine Service

02/25/2026

Hey neighbors 👋
If anyone along Florida’s East Coast needs a reliable mobile marine mechanic, I wanted to introduce myself.
I run Neptune Marine Service, and we come directly to your dock or driveway for diagnostics, maintenance, and repairs — saving you the hassle of hauling your boat.
Recently helped several local boat owners with:
⚓ Engine diagnostics
⚓ Outboard & inboard repairs
⚓ 100hr / 300hr services
⚓ Electrical issues
⚓ Diesel & gas engines
If you ever need help getting back on the water, feel free to reach out.
📞 Call or text: 904-916-4604
Stay safe out there and enjoy the water! 🚤
— Bruno, Neptune Marine Service

🚤 Boat problems? We bring the fix to you.Neptune Marine Service provides professional mobile marine repair across Florid...
02/24/2026

🚤 Boat problems? We bring the fix to you.

Neptune Marine Service provides professional mobile marine repair across Florida’s East Coast. From diagnostics to full engine service — we come to your dock and get you back on the water fast.

✅ Outboards & Inboards
✅ Diesel & Gas Engines
✅ Electrical Troubleshooting
✅ 100hr / 300hr Services

📞 Call or Text: 904-916-4604
⚓ Reliable • Professional • On-Site Marine Service

02/18/2026

Regular engine maintenance is key to keeping your motor running at its best — strong, reliable, and ready for the water.
This machine right here is a perfect example of what happens when maintenance gets neglected.
Lack of service, worn components, and buildup over time had this engine barely running on two cylinders.
When engines don’t get routine care — spark plugs, fuel system cleaning, carb adjustments, compression checks — performance drops fast. You lose power, efficiency, and eventually risk major damage.
Stay ahead of the problem.
Routine maintenance doesn’t just keep your engine running — it protects your investment and keeps you safe out on the water.

02/16/2026

Customer called us out for poor performance and rough idle. After a full diagnostic inspection, we found weak batteries, bad terminals, and a broken crimp at the throttle body. We repaired the issue, serviced the system, and completed a successful sea trial — engine running strong again! 💪
Don’t wait until you’re stranded… get your boat serviced by the pros.
📞 Call/Text: 904-916-4604
⚓ Neptune Marine Service
🛥 Mobile Marine Mechanic — We Come To You

02/14/2026

Performed a full shift alignment adjustment on this Johnson 90HP to ensure smooth forward, neutral, and reverse engagement. Proper shift setup is critical to prevent gear grinding, hard shifting, and premature lower unit wear. Dialed in linkage timing and verified clean gear engagement on the trailer.
If your motor is hard to shift or grinding into gear — don’t wait, it can lead to major lower unit damage.
📞 Neptune Marine Service
904-916-4604
Mobile Service – Jacksonville • St. Augustine • St. Johns

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Services Available In:
Saint Augustine, FL
32092

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