GPS, fish finders, displays, and navigation upgrades installed cleanly and correctly—so your gear works when you need it.
SMS Marine Service provides marine electronics and navigation installation in Sarasota with a mobile dockside approach. We help boat owners upgrade equipment, replace failing units, and get systems working reliably with clean wiring, proper mounting, and practical setup —done dockside when possible .
Tell us what you’re installing + where the boat is—
We install and replace GPS units and chartplotters from leading marine electronics brands, ensuring secure mounting, clean wiring, proper power connections, and accurate system setup. After installation, we verify functionality and settings so your equipment delivers clear data, accurate positioning, and dependable performance.
We professionally install and replace fish finders and sonar systems, including proper transducer placement, clean wiring, secure mounting, and correct power and data connections. After installation, we verify operation and settings to ensure your system delivers clear depth readings, bottom structure detail, and fish targets.
When applicable, our technicians evaluate your current helm setup and recommend improved mounting options for GPS units, Chart plotters, fish finders, and other displays. We ensure secure mounting, clean cable routing, and optimal positioning to reduce glare, improve sightlines, and create a more organized, user-friendly helm.
Our technicians evaluate your existing power delivery and wiring setup and, when applicable, make targeted improvements to ensure stable, clean power to your electronics. This may include upgrading wiring, improving grounding, correcting connection points, and organizing cable runs to reduce electrical interference and voltage drop.
Where applicable, our technicians verify basic integration between compatible systems such as GPS, Chart plotters, sonar, engine data, and related electronics. We confirm proper connections, data sharing, and system operation, then perform overall verification to ensure everything is working together smoothly.
When the issue appears to be install-related, our technicians inspect power connections, wiring integrity, fuses, grounding, and mounting points to locate faults such as loose connections, voltage drop, poor grounding, or improper wiring. Once identified, we explain the issue clearly and recommend corrective solutions to restore reliable operation.
Electronics issues are often caused by poor connections, messy wiring, or unreliable power. Our goal is a professional install that’s easy to service later.
What we focus on:

Devices like GPS, fish finders, displays, navigation systems.

Batteries, charging, wiring faults, pumps, switches, circuits.
Open today | 09:00 am – 05:00 pm |
Our team of boat detailing experts will make your boat shine like new. We use the highest quality products and techniques to clean, polish, and protect your boat. Our goal is to make sure your boat looks great and is protected from the elements.
If your boat engine is outdated or not performing as well as it should, it may be time to consider repowering. Our team can help you choose the right engine for your boat and install it for you. With a new engine, your boat will run smoother and more efficiently.
We offer professional boat painting services to give your boat a fresh new look. Our team can help you choose the perfect color and finish for your boat, and we use high-quality marine paint to ensure a long-lasting finish. Our goal is to make your boat look great and protect it from the elements.
Need to transport your boat? We offer reliable and affordable boat hauling services. Our team has the experience and equipment to safely transport your boat to any destination. We'll handle all the details, from securing your boat to delivering it to its final destination.
Navigating the waters around SMS Mobile Marine Service can be challenging, especially if you're not familiar with the area. Our team can help you navigate with confidence, whether you need help with charts, tides, or weather. We'll make sure you have all the information you need for a safe and enjoyable boating experience.
SMS Mobile Marine Service is proud to serve Sarasota, FL, delivering dealer-level marine repair and maintenance directly to your dock or marina. Our factory-authorized technicians bring the tools, diagnostics, and OEM-grade parts to your location — so you get professional service without hauling your boat. We specialize in outboard engine repair, electrical and electronic systems, hydraulics, and accessories installation for all types of boats.
SMS Mobile Marine Service proudly serves Lakewood Ranch, FL, bringing expert boat repair and maintenance directly to your location. Whether you’re storing your vessel at home, preparing for a weekend on the water, or need preventive care before boating season, our certified technicians deliver reliable, on-site marine services tailored to your needs.
Boat owners in Venice, FL can rely on SMS Mobile Marine Service for professional, mobile marine solutions. Whether you’re on the Intracoastal Waterway or at a Venice marina, our technicians will come to you with the equipment and expertise needed to diagnose and repair your boat. From engine maintenance to electronics upgrades and electrical work, we keep your vessel seaworthy all year long.
In Bradenton, FL, SMS Mobile Marine Service offers convenient, on-site marine care that keeps your boat performing at its best. From routine maintenance to complex repairs, our certified technicians come directly to your dock, lift, or marina. We work on outboards, electrical systems, marine electronics, and more — providing reliable service with OEM-grade parts and diagnostics.
Please reach us at smsmarine@hotmail.com if you cannot find an answer to your question.
Yes. We provide mobile dockside and marina outboard service throughout Sarasota. Share your location when you request a quote and we’ll confirm access.
Engine make/model (and hours if you know them), boat type, your location (marina/dock), and symptoms (alarms, when it happens, recent changes).
In many cases, yes. We’ll start with symptoms and perform on-site diagnostics. If the repair requires a shop or specialized equipment, we’ll explain the best path.
Yes—our main additional hubs are Bradenton, Venice, and Lakewood Ranch. Coverage can depend on job type and schedule.
Tell us what you want installed and where the boat is. We’ll confirm next steps and send scheduling options.
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