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# Electrical Panel Upgrade in California

100 to 200 amp service upgrades, breaker box replacement and subpanels for modern loads.

(833) 652-8933 Find your city

482 cities, 54 counties, open 24 hours, 7 days a week

24/7Live dispatcher, every night and holiday
Flat priceQuoted before we start work
Same dayRepair slots most weekdays
54 countiesCrews working locally

## Service directory — California

MAIN 200A
Emergency electrician 24/7 Electrical repair 15A Panel upgrade 200A Rewiring 12 AWG EV charger installation 50A Generator installation 22kW Lighting installation 20A Outlets and switches 20A Commercial electrical 3Ø Smart home wiring CAT6
Every circuit answered by a live dispatcher, 24 hours a day.

Electrical emergency anywhere in California? Sparking outlet, burning smell, no power. Turn the circuit off and call.

(833) 652-8933

## Electrical Panel Upgrade done properly

A lot of California houses are still running the panel they were built with, on a service sized for one window AC and a black-and-white television. Add an EV, a heat pump and an induction range and that panel is out of room and out of capacity.

We work statewide, and every quote is a flat price for a defined scope. Find your city below for local detail and a local page, or call and we will tell you what the job looks like for your address.

Electrical Panel Upgrade — the essentials
Typical service size | 200A residential, 400A for large homes and small commercial
Panel spaces gained | Commonly 20 to 42 breaker spaces after upgrade
Time on site | Most residential upgrades finish in one day
Included | Permit, utility disconnect coordination, inspection, grounding upgrade

## What we cover

- 100 amp to 200 amp service upgrades
- Main breaker and main lug panel replacement
- Fuse box to modern breaker panel conversion
- Zinsco, Federal Pacific and Challenger panel replacement
- Subpanel installation for garages, shops and ADUs
- Meter main combo and service entrance replacement
- Grounding and bonding brought up to current code
- Whole-house surge protection added at the panel
- AFCI and GFCI breaker upgrades
- Load calculations for EV, HVAC and solar additions

### Where we work

Pick your city for local pricing detail and nearby coverage:

- Panel upgrade Los Angeles
- Panel upgrade San Diego
- Panel upgrade San Jose
- Panel upgrade San Francisco
- Panel upgrade Fresno
- Panel upgrade Sacramento
- Panel upgrade Long Beach
- Panel upgrade Oakland
- Panel upgrade Bakersfield
- Panel upgrade Anaheim
- Panel upgrade Santa Ana
- Panel upgrade Riverside
- Panel upgrade Stockton
- Panel upgrade Irvine
- Panel upgrade Chula Vista
- Panel upgrade Fremont
- Panel upgrade Modesto
- Panel upgrade Oxnard
- Panel upgrade Fontana
- Panel upgrade Moreno Valley

All 482 cities

## Common situations

### No space left in the panel

Double-tapped breakers and tandem cheaters are a sign the panel is full. A 200 amp replacement gives you 40 or more spaces and room for the next ten years.

### Zinsco or Federal Pacific panel

These breakers have a documented history of failing to trip under fault. Replacement is the only real remedy, and it is one of our most common your city jobs.

### Panel is rusted or wet

Water in an enclosure corrodes bus stabs and creates high-resistance connections. Once rust reaches the bus, the panel is done.

### Adding an EV, heat pump or ADU

All of these need a load calculation. If existing demand plus the new load exceeds your service, the upgrade comes first.

## Questions about electrical panel upgrade

How much does an electrical panel upgrade cost in California?

Cost tracks the service size, the condition of the service entrance and whether the meter has to move. A straight 100 to 200 amp swap sits well below a job that needs a new mast and underground feed. Call (833) 652-8933 and we will walk your panel and quote a flat number.

How long will my power be off during the upgrade?

Plan on most of a working day. We coordinate the utility disconnect and reconnect so the outage lands in one block rather than spread over days.

Do I need a permit for a panel upgrade in California?

Yes, service work is permitted and inspected. We pull the permit, schedule the inspection and meet the inspector so you don't have to.

Do I really need 200 amps?

If you are adding EV charging, electric heat, a hot tub or an ADU, almost certainly. We run an actual load calculation rather than guessing, and if 100 amps genuinely still works we will tell you.

Can you replace just the breakers instead of the whole panel?

Sometimes. On a sound modern panel, breaker replacement is fine. On a Zinsco, Federal Pacific or corroded enclosure, new breakers don't fix the bus, so the panel gets replaced.

## Other electrical services

- 24/7 Emergency Electrician
- Electrical Repair
- Whole House Rewiring
- EV Charger Installation
- Generator Installation
- Lighting Installation
- Outlet & Switch Installation
- Commercial Electrician
- Smart Home Wiring

## Book panel upgrade in California

Call and speak to a dispatcher now, or send the details and we will come back with a time and a price.

(833) 652-8933 Answered 24 hours a day, including holidays
Call (833) 652-8933 Request service