Sure Shot Marine

Jeremyn Horsley  ·  Marine Electrician

San Francisco Bay Area

Marine Electrical Diagnostics & Repair

Charging systems, shore power, AC/DC distribution, NMEA 2000 networks, corrosion faults, and critical safety circuits.

Serving Alameda, Oakland, Berkeley, Richmond, Sausalito, and surrounding San Francisco Bay Area marinas.

Common Problems

Battery Not Charging

Alternator, regulator, shore charger, or battery bank diagnosis and repair.

Shore Power Issues

Inlet faults, tripping breakers, ELCI issues, grounding and galvanic protection.

Dead or Intermittent Circuits

Breaker trips, voltage drop, parasitic drain, and corrosion-related failures.

Electronics Not Working

NMEA 2000 backbone faults, device dropouts, chartplotter and VHF power issues.

Stray Current / Corrosion

Hull potential testing, galvanic isolator verification, bonding system evaluation.

Bilge Pump Not Working

Float switch testing, auto/manual logic, feed integrity, and corrective wiring.

VHF or GPS Problems

Radio installation, antenna and feedline testing, AIS integration, and chartplotter power issues.

Don't Know What You Have

System mapping, circuit documentation, and a written report of what's there and what needs attention.

How It Works

  • Call or text — describe what you're seeing. I'll tell you right away if it sounds serious.
  • We talk it through — I'll ask a few questions and we'll figure out whether a site visit makes sense and what to expect.
  • I come to your boat — diagnosis first, then options. No surprise scope.
  • You get a written summary — findings and recommendations in plain language, whether you book further work or not.