San Diego marina at golden sunset

San Diego | Marine Electrical & Electronics

Built to last.
Wired to work.

Expert marine electrical, electronics, and custom fabrication for recreational powerboats, sailboats, and yachts throughout San Diego County. No compromises.

What We Do

Services

Cut the cord from shore power and eliminate your generator entirely. We engineer solar arrays matched precisely to your vessel's energy profile, giving you clean, silent power whether you're anchored in a quiet cove or offshore for two weeks. Every component is selected for marine-grade durability and installed to last the life of your vessel.

What You Get

  • Custom solar array design sized to your actual daily load, including all cabling, fusing, and MPPT charge controllers for maximum harvest efficiency
  • DC hot water integration so you have hot showers on demand without running an engine or generator
  • Dedicated Starlink power management keeping your satellite internet online around the clock, even at anchor
  • Full system commissioning with a written load analysis showing exactly how many amp-hours you produce and consume each day
Read the full guide to marine solar

Lithium iron phosphate batteries are the single highest-impact upgrade available to a cruising yacht. We design and install complete banks sized to your power demands, built to ABYC E-13 specifications, the most rigorous safety standard in marine electrical. The result is a bank that stores more, weighs less, and lasts a decade.

Why LiFePO4

  • Approximately 40% more usable capacity than lead acid at the same physical footprint, at roughly half the weight
  • Zero voltage sag under heavy load, so your windlass, inverter, and electronics run at full rated power from 100% down to 10% state of charge
  • Integrated Battery Management System (BMS) providing active protection against overcharge, over-discharge, short circuit, and thermal events
  • Ten-year design lifecycle with superior heat tolerance, making them ideal for bilge and engine compartment installations
Read the full guide to LiFePO4 batteries

A modern navigation suite is only as good as its installation. We handle the complete design, installation, and commissioning of your electronics so every device communicates with every other device seamlessly. We work with all major manufacturers and configure each system from scratch rather than accepting factory defaults.

  • Radar, AIS transponders, VHF with DSC, and multi-function chartplotters from Garmin, Furuno, Simrad, B&G, and others
  • Full NMEA 2000 backbone design and installation connecting all instruments, engines, and sensors into a single integrated network
  • Starlink and cellular antenna systems with dedicated power circuits, proper routing, and watertight penetrations
  • Complete sea-trial commissioning with every device tuned, tested under way, and documented before sign-off
Read the full guide to electronics and navigation

Off-the-shelf solutions rarely fit a yacht the way a purpose-built component does. We design, engineer, and fabricate instrument panels, electrical panels, equipment mounts, and structural brackets tailored to your vessel and your preferences. If it needs to be built, we can build it, for any boat regardless of age or layout.

Materials and Capabilities

  • Fabrication in fiberglass, carbon fiber sheet, aluminum, stainless steel, G-10, ABS, and Viton to match your boat's environment and aesthetics
  • Custom electrical panels with properly rated breakers, engraved labeling, and bus bar layouts engineered to ABYC standards
  • Equipment mounts and arch structures designed to your load specifications, welded and finished in-house
  • Fits classic wooden boats, vintage production vessels, and modern performance yachts with equal precision
Read the full guide to custom fabrication

Boat electrical systems accumulate problems silently over years of service. Corroded connections, undersized wiring, missing fusing, and deteriorating insulation are common on vessels of every age and price point. We inspect every circuit and component from the battery bank to the bilge pump and give you a prioritized report of exactly what we find.

What We Cover

  • Complete AC and DC system survey including all wiring, connections, terminal blocks, breakers, fusing, and panel condition
  • Identification of shock hazards, corroded connections, undersized conductors, and improper grounding often missed in standard marine surveys
  • Installation of zinc anodes and galvanic isolation equipment to protect underwater metals and prevent corrosion-related hull damage
  • Written inspection report with prioritized findings so you know exactly what is urgent, what is advisory, and what can wait
Read the full guide to electrical inspections

Every installation we do starts with engineering. Before we touch a wire, we produce a complete system design: a load analysis, a one-line electrical diagram, and a reviewed parts list. You know exactly what is going into your boat and why. At completion, you receive a documented as-built package so your system is fully maintainable for the life of the vessel.

What You Receive

  • Pre-installation load analysis and system design document reviewed and approved with you before any work begins
  • Properly sized conductors, fusing, and bus bar architecture meeting or exceeding ABYC standards throughout
  • Equipment selection guidance covering voltage regulation, surge suppression, and galvanic isolation to protect your sensitive electronics
  • Complete as-built documentation package including wiring diagrams, component specifications, and maintenance intervals
Read the full guide to engineered electrical systems

Why Leviathan

The standard that matters

Done Right

Every install is checked before we call it done. We follow all applicable ABYC Standards and Recommendations, because doing it right the first time is the only standard that matters.

Back on the Water Fast

The longer your boat sits in the yard, the more it costs you. We respect that, so we show up on time and get you back on the water fast.

Your Partner, Not Just a Vendor

We work with you every step of the way to make sure your boat is safe and seaworthy.

What to Expect

How We Work

01

Full Vessel Assessment

We begin every project by getting eyes on your boat. We inspect and photograph your existing systems, take measurements, and identify everything relevant to the scope of work. Nothing is assumed. You get an honest picture of where your vessel stands before a single dollar is spent.

02

Quote and Statement of Work

You receive a detailed written quote alongside a clear statement of work. Every milestone is defined, every deliverable is named, and the goals for each phase are spelled out before we begin. No surprises mid-project, no scope creep, no verbal agreements you have to remember.

03

Ongoing Communication

We keep you in the loop at every step. As work progresses we share updates, flag anything unexpected, and confirm decisions with you before acting on them. Your boat is a significant investment and you deserve to know exactly what is happening to it at all times.

04

Final Documentation

At completion you receive a final document covering every upgrade and modification made to your vessel, including wiring diagrams, component specifications, photos, and maintenance notes. Your system is fully documented so you, a future buyer, or any marine technician can understand exactly what is aboard.

Who We Are

Engineer by training.
Sailor by choice.

Leviathan Boat Works was founded by a computer engineer and lifelong sailor with 12 years of hands-on experience building, restoring, and refitting private vessels. That background is not incidental; it means we approach every project with both the technical precision of an engineer and the practical knowledge of someone who actually lives aboard and sails their boat.

Our founder has personally designed and built complete electrical systems, restored vessels from the waterline up, and tripled the value of his own yacht through careful, quality-focused work. We bring that same standard to every client project.

Based in San Diego, serving recreational powerboats, sailboats, and yachts throughout San Diego County.

Work With Us

Where We Work

San Diego Coast

We serve all of San Diego County, including boats on trailers. The locations shown are a non-exhaustive sample of where we work.

Let's Talk

Ready to get started?

Tell us about your boat and what you need. We'll get back to you within one business day.