Boat Electrical Repair
Boat electrical repair in Long Beach and San Pedro: wiring, gauges, ignition, trim and tilt, bilge pumps and batteries, fixed at your slip. Book now.
- 11 services
- Labor $150/hr
- Trip fee from $30
- At your slip or in the shop
Marine Electrical Repair in Long Beach and San Pedro
We diagnose and repair boat electrical systems at your slip, dock or storage yard from Marina del Rey to Newport Beach, or at our San Pedro shop. We trace the fault from the batteries to the panel, find the cause and quote the repair before any work is done.
What the work covers
The core service is marine electrical repair and troubleshooting: dead circuits, tripping breakers, corroded connections and wiring that has been added to over the years. The work also covers:
- Batteries and charging: marine battery replacement and charging system repair, plus lithium LiFePO4 battery conversions and power upgrades.
- Shore power: shore power inspection and cord replacement.
- Corrosion: electrolysis and galvanic corrosion testing, with a check of the bonding system.
- Solar: marine solar panel design and installation.
- Networks: NMEA 2000 networking and digital switching systems.
- Lighting, sound and internet: underwater LED lighting, marine audio upgrades, Starlink installation, and marine electronics installation and repair.
Parts are quoted with the job.
When to call
- Batteries that go flat overnight or will not hold a charge
- A breaker that keeps tripping, or a circuit that works one day and not the next
- A shore power plug or inlet that looks burnt or feels hot
- Zincs that wear away fast, or pitting on props and running gear
- Electronics that reset, flicker or drop off the network
Questions about marine electrical repair
Why do boat electrical problems come and go?
Salt air and moisture corrode terminals and crimped joints. A weak connection can pass a quick check and still fail when the circuit carries current, so we test circuits under load.
Is a lithium battery conversion a simple swap?
Usually not. Lithium batteries charge differently from lead-acid, so the charger, alternator and battery monitor often need changes as part of the job.
Book a visit: submit a ticket with the boat, where it is kept and which circuits are acting up, or call (562) 542-7296.
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#1564 Common question asks
Can proper electronics installation improve safety on the water?
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Definitely. Properly installed and calibrated electronics enhance navigation accuracy, collision avoidance, communication, and situational awareness—significantly improving onboard safety.
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#1562 Common question asks
Do you provide on-water testing after installation?
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Yes, we perform dockside and sea-trial testing to verify proper operation, calibration, signal strength, and system reliability before final delivery.
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#1560 Common question asks
Can you upgrade outdated navigation or radar systems?
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Yes, we upgrade older systems to modern touch-screen chartplotters, digital radar, and integrated navigation packages, improving accuracy, safety, and usability.
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#1558 Common question asks
Is professional installation better than DIY for marine electronics?
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It usually is. A professional install gets the grounding, waterproof connections and fuse protection right and follows ABYC practice, which prevents many common failures.
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#1556 Common question asks
Do you troubleshoot electrical or signal issues with marine electronics?
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Absolutely. We diagnose power loss, signal interference, faulty transducers, network dropouts, and software issues using professional marine diagnostic tools.
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#1554 Common question asks
Can you integrate new electronics with my existing system?
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Usually. Devices from different brands share navigation and engine data over NMEA 2000, and we set up the network so they talk to each other. Radar, sonar and cameras that run on a maker's own Ethernet network generally work only with that brand's displays, so we check compatibility with you before you buy.
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#1552 Common question asks
What types of marine electronics do you install and repair?
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We install and repair chartplotters, radar, GPS, fishfinders, autopilots, VHF radios, AIS systems, cameras, and integrated NMEA 2000 networks.
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#545 Common question asks
Do you provide service directly at the marina?
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Yes. We inspect shore power systems and replace cords and inlets at your slip anywhere from Marina del Rey to Newport Beach, which lets us test under real load on the marina's power. A one-way trip fee by distance applies to each visit, from $30 in San Pedro to $110 in Newport Beach.
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#543 Common question asks
Is your shore power work compliant with marina and insurance requirements?
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We inspect and replace shore power parts to ABYC standards and give you a written record of what we checked and replaced, which you can show your marina or insurer. Each marina and insurer sets its own requirements, so check with them what they need.
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#541 Common question asks
Do you replace shore power inlets and connectors as well?
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Yes, we replace shore power cords, inlets, plugs, and connectors as needed. We install marine-grade, corrosion-resistant components designed for saltwater environments and heavy marina use.
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