Why San Diego homeowners call CLD Electric for this
Every neighborhood in San Diego has a different electrical era. We've seen it all — knob-and-tube in Kensington, aluminum in Clairemont, brand-new EV panels in Mission Valley. We cover all central San Diego ZIPs — Downtown, North Park, Hillcrest, Mission Valley, Point Loma, Ocean Beach, Pacific Beach, and beyond regularly — dispatch time to your area is running about 40-65 min.
When you service or upgrade 3-phase commercial panels in San Diego, you want a licensed electrician who: knows the local permit process, coordinates with SDG&E cleanly, respects your property, and doesn't disappear after the invoice is paid. That's what we've been doing since 2004.
The typical San Diego 3 phase commercial panels call
What we do: Service upgrades, panel replacements, load calculations, distribution work.
Why it matters: Your building's electrical demand has grown past the existing panel. You're adding equipment. The panel is failing under current load.
Service area within San Diego
We cover all central San Diego ZIPs — Downtown, North Park, Hillcrest, Mission Valley, Point Loma, Ocean Beach, Pacific Beach, and beyond. If you're inside or on the edge of these areas, we're on call. Not sure? Just ring us — we'll tell you straight up whether we're a fit for the job.
What we handle on the commercial electrical side
Servicing your electrical infrastructure
Regular maintenance keeps the panel from becoming a Friday-afternoon problem. We do check-ups on existing infrastructure — thermal imaging on the busbar, torque checks on the lugs, looking for burn marks, moisture, or corrosion. Catching a hot connection before it fails saves an outage and a much bigger bill.
Upgrading panels and load centers
As the business grows, so does the electrical demand. Older 3-phase panels weren't sized for what modern kitchens, HVAC, EV charging, and manufacturing equipment pull now. We upgrade the service, replace the panel, add new load centers, and coordinate with SDG&E for the meter and disconnect work.
Troubleshooting and repairs
When a 3-phase system starts acting up — a motor won't start, breakers trip for no reason, voltage is uneven leg to leg — the diagnosis matters more than the fix. We show up with the meters and the experience to find the actual cause, not just replace what the last guy already replaced.
Service meters
Accurate metering matters when you're paying the SDG&E bill. If a meter is drifting, damaged, or reading wrong, we calibrate, repair, or replace it. Also helpful when you're trying to sub-meter tenants and need clean base numbers.
Why we get called for this work
- Real 3-phase experience. This isn't residential work with an extra leg. Different systems, different code, different failure modes. Our commercial techs live in it.
- Tailored to your operation. A restaurant's electrical needs are nothing like a warehouse's. We scope what your building actually does.
- Real parts. We spec quality gear from Square D, Eaton, Siemens. Not surplus, not gray-market.
- Available. When the panel is down and the business is losing money, we come. Nights, weekends.
- Same crew every time. The tech who wired your panel is the tech who comes back when it needs service.
Common questions
Can you do the panel upgrade without shutting down the whole building?
Do you work on service voltages up to 480V?
Where we do this work
We serve homeowners and businesses across San Diego County and San Diego County. Every one of these cities has a dedicated local page with details on our coverage there: Alpine, Carlsbad, Chula Vista, Coronado, Del Mar, El Cajon, Encinitas, Escondido, Imperial Beach, La Jolla, La Mesa, Lakeside, Lemon Grove, , National City, Oceanside, Poway, Rancho Bernardo, Rancho Santa Fe, San Diego, San Marcos, Santee, Solana Beach, , Vista.