SMS Mobile Marine Service

(941) 356-4562

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(941) 356-4562

SMS Mobile Marine Service

Signed in as:

filler@godaddy.com

  • Home
  • About Us
  • Our Services
    • Boat Maintenance Repair
    • Outboard Motor Service
    • Marine Electrical Repairs
    • Marine Electronics
    • Hydraulics & Steering
    • Parts & Accessories
    • Mobile Service
  • Blogs
  • Contact

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Marine Electrical Repairs & Upgrades in Sarasota, FL

Request a Service Quote

Call: (941) 356-4562 or Request a Quote Online - We Confirm Availability Within a Few Hours.

Call: (941) 356-4562 or Request a Quote Online - We Confirm Availability Within a Few Hours.

Call: (941) 356-4562 or Request a Quote Online - We Confirm Availability Within a Few Hours.

Call: (941) 356-4562 or Request a Quote Online - We Confirm Availability Within a Few Hours.

Call: (941) 356-4562 or Request a Quote Online - We Confirm Availability Within a Few Hours.

Call: (941) 356-4562 or Request a Quote Online - We Confirm Availability Within a Few Hours.

Serving Sarasota, Bradenton, Venice, Longboat Key & More

Mobile Dockside Electrical Diagnostics, Wiring Repair & Char

Electrical problems are the leading cause of boat failures on the water. SMS Mobile Marine Service provides mobile marine electrical diagnosis and repair throughout Sarasota — at your dock, slip, or marina. We find the root cause of electrical failures, fix them with clean marine-grade work.

Ready to Schedule Mobile Service?

What We Do: Service Scope

We diagnose and repair 12V marine electrical systems on outboard-powered vessels throughout Sarasota

Our technicians identify root causes — not just symptoms — and repair with marine-grade materials rated for the saltwater environment. 

Electrical Diagnostics

  • Battery drain and parasitic draw testing — find what is killing your battery overnight
  • Charging system diagnosis — alternator, stator, voltage regulator, rectifier
  • Intermittent power loss — fault isolation using load testing and circuit tracing
  • Blown fuse and tripping breaker root cause analysis — not just replacement
  • Ghost issues — failures that only occur under load or in specific conditions
  • Corrosion assessment — identifying which connections are at risk before they fail

Electrical Repairs

  • Battery and charging system repair — replace failing components with marine-rated parts
  • Wiring repair — splice, reroute, or replace damaged sections properly
  • Terminal and connection restoration — clean, tin, and seal corroded connection points
  • Fuse block and breaker panel repair and replacement
  • Switch and relay replacement
  • Bilge pump, livewell, and washdown pump electrical fault repair
  • Grounding system repair — correct inadequate grounds that cause intermittent failures

Electrical Upgrades

  • Wiring cleanup and organization — eliminate unsafe or unreliable wiring conditions
  • Fuse block and bus bar upgrades — replace under-protected circuits with proper protection
  • Battery switch installation and upgrade
  • Dual battery and battery management system installation
  • Shore power and battery charger installation
  • Lighting upgrades — LED navigation lights, courtesy lighting, deck lighting
  • Accessory circuit addition — clean dedicated circuits for new equipment

How Our Mobile Service Works

Describe What Is Happening

Repair or Upgrade - Your Call

Describe What Is Happening

Tell us the symptoms: what fails, when it fails, how long it has been happening, and any recent electrical work or changes. The more specific you can be, the better prepared we arrive.

We Diagnose the Root Cause

Repair or Upgrade - Your Call

Describe What Is Happening

We do not guess and replace parts hoping to get lucky. We test the circuit, trace the fault, and identify what is actually causing the problem before recommending a repair.

Repair or Upgrade - Your Call

Repair or Upgrade - Your Call

Repair or Upgrade - Your Call

Once we have identified the issue, we explain what caused it, what fixing it involves, and what it costs. For upgrades, we advise on what will actually improve reliability versus what is optional.

Verified & Clean

Repair or Upgrade - Your Call

Repair or Upgrade - Your Call

After repairs we test the circuit under normal operating conditions before leaving. Repairs use marine-rated wire, heat-shrink connectors, and properly sized fusing. No automotive parts on a boat.

Why Boat Owners Choose SMS Marine Service

Root Cause Diagnosis, Not Parts Replacement

Root Cause Diagnosis, Not Parts Replacement

Root Cause Diagnosis, Not Parts Replacement

Replacing a fuse that keeps blowing without finding why it blows is not a repair — it is a delay. We trace faults to their source and fix the underlying problem.

Marine-Grade Materials Throughout

Root Cause Diagnosis, Not Parts Replacement

Root Cause Diagnosis, Not Parts Replacement

Automotive electrical materials fail in the marine environment. We use tinned marine wire, marine-rated connectors, proper heat shrink, and UV-resistant materials. Repairs that hold up at sea.

Electrical Safety Is Not Optional

Root Cause Diagnosis, Not Parts Replacement

Electrical Safety Is Not Optional

A bad ground, an overloaded circuit, or a corroded connection is not just a nuisance — it is a fire risk. We take electrical work seriously and will not leave an unsafe condition unaddressed.

Honest About Scope and Access

Licensed, Insured & Warranty-Backed

Electrical Safety Is Not Optional

Some electrical repairs require hauling, panel removal, or extensive dismantling that is not practical dockside. If that is the case, we tell you before we start.

We Also Install Marine Electronics

Licensed, Insured & Warranty-Backed

Licensed, Insured & Warranty-Backed

If your electrical project connects to a GPS, fish finder, VHF, or audio upgrade, we handle both the wiring and the electronics installation in the same visit. See our Marine Electronics page for full scope.

Licensed, Insured & Warranty-Backed

Licensed, Insured & Warranty-Backed

Licensed, Insured & Warranty-Backed

Every repair is performed by licensed technicians. Our work is covered, and we stand behind what we do. If something is not right, we come back and make it right.

Need Marine Electrical Repair in Sarasota?

Tell us what is happening and where the boat is.
Call: (941) 356-4562Request a Quote Online

Frequently Asked Questions

Please reach us at smsmarine@hotmail.com if you cannot find an answer to your question.

Yes. Parasitic drain testing is one of the most common electrical calls we handle. We use a multimeter and systematic circuit isolation to identify which component or circuit is drawing current when the boat is at rest.


A fuse that repeatedly blows is telling you there is a short circuit, an overloaded circuit, or a failing component drawing too much current. Replacing it without diagnosing why it blows is just setting up the next failure — and a potential fire risk. We find and fix the root cause.


Intermittent faults are harder to chase than constant failures, but they are traceable. We use voltage drop testing, load testing, and connector inspection to identify high-resistance connections and loose terminals that behave well at rest but fail under vibration or load.


Yes. Wiring cleanups, fuse block upgrades, and bus bar installations are projects we handle regularly. If your boat has mystery wiring from previous owners or add-on accessories installed without proper fusing, we can assess and correct it.


Significantly. Marine environments involve constant moisture, salt air corrosion, vibration, and submersion risk. Automotive wire and connectors corrode rapidly in a marine environment. We use tinned marine-grade wire, heat-shrink adhesive connectors, and properly rated fusing for everything we install.


Boat make, model, and engine brand. Location (marina and slip). A description of what is failing — what the symptom is, when it happens, and anything that has changed recently (new equipment installed, recent work done, trips in rough water). Photos of your electrical panel or problem areas are helpful.


Service Areas

Sarasota, FL  |  Brandenton, FL  |  Venice, FL  |  Lakewood Ranch, FL  |  Longboat Key, FL  |  Siesta Key, FL  |  Osprey, FL  |  Nokomis, FL  |  Anna Maria, FL  |  Palmetto, FL

Schedule A Mobile Marine Service Today
  • Boat Maintenance Repair
  • Outboard Motor Service
  • Marine Electrical Repairs
  • Marine Electronics
  • Hydraulics & Steering
  • Parts & Accessories
  • Mobile Service

SMS Mobile Marine Service

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