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Electrical Panel Upgrade and Replacement in San Mateo, CA

Your electrical panel sets the limit on everything else in the building. If yours is full, outdated or only rated for 100 amps, adding an EV charger, air conditioning or an induction range can push it past what it was built for. An electrical panel upgrade in San Mateo gives you the capacity and the breaker protection modern loads need.

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  • Answered 24/7
  • Price before work starts
  • Serving all of San Mateo County

Electrical Panel Upgrade services in San Mateo

Bayshore Electrical Services & Design replaces fuse boxes, obsolete breaker panels and undersized services across San Mateo, Burlingame and Belmont. We handle the load calculation, the permit, coordination with the utility and the final inspection, so you deal with one company from start to finish.

200 amp panel upgrade

The standard for modern homes, with room for EV charging, heat pumps, solar and future circuits.

100 amp to 200 amp upgrade

New meter base, service entrance conductors, grounding and main panel sized for double the capacity.

Breaker box replacement

Outdated panel brands and worn bus bars replaced with a current, fully labeled load center.

Fuse box replacement

Screw-in fuse panels converted to breakers, with circuits separated and grounded as the wiring allows.

Sub panel installation

Added capacity for garages, ADUs, workshops, additions and pool equipment without replacing the main.

Main panel and service upgrade

Meter, mast or underground service, main breaker and grounding brought up to current code together.

Signs your panel needs attention

  • A panel with no open spaces, or doubled-up wires on one breaker
  • Fuses instead of breakers, or a 60 or 100 amp main
  • Rust, scorch marks or a crackling sound at the panel
  • Plans for an EV charger, solar, a spa or central air
  • Breakers that trip often or feel warm

Talk to an electrician in San Mateo

Tell us what you need. We'll give you a straight answer and a time we can be there.

Call (888) 633-7804

Serving San Mateo, Burlingame and Belmont

Bay Area households are adding load quickly: EV chargers, heat pump water heaters, induction ranges and home batteries. Older 100-amp panels in San Mateo often can't absorb that without a load calculation and, sometimes, an upgrade. Wind-driven safety shutoffs in the hills also make backup power a common request.

In San Mateo we regularly work in Aragon, Baywood, Hillsdale, San Mateo Park, Shoreview and Downtown San Mateo. Our electrical panel upgrade service also covers nearby Burlingame, Belmont, Millbrae, San Carlos, San Bruno and South San Francisco. ZIP codes served: 94401, 94402, 94403, 94404, 94497.

Electrical Panel Upgrade pricing in San Mateo, CA

Electrical panel upgrade cost in San Mateo depends on the amperage, whether the service is overhead or underground, where the meter sits, and what the utility and building department require. A like-for-like panel swap is at the low end; relocating the service or upgrading 100 amp to 200 amp with new grounding costs more. We inspect the existing setup and give you a written, itemized price.

What happens when you call

  1. Call (888) 633-7804 for a site visitWe look at the existing system, listen to what you need and take measurements.
  2. Load calculation and written quoteYou get an itemized scope and price, with options where there is more than one good way to do it.
  3. Permits and schedulingWe file the permit, coordinate with the utility or other trades and set dates that work for you.
  4. Installation and inspectionThe work is completed, tested, inspected where required and explained to you before we close out.

Common questions about electrical panel upgrade in San Mateo

How long will my power be off?

For most panel upgrades in San Mateo the power is off for one working day, typically four to eight hours. We schedule the utility disconnect and reconnect so the outage is as short as possible.

Do I need 200 amps?

If you plan to add an EV charger, electric heat pump, induction range or solar, usually yes. We run a load calculation on your property so the decision is based on numbers, not a sales pitch.

Is a permit required for a panel upgrade in San Mateo?

Yes. Panel and service upgrades require a permit and inspection, and the utility has to approve the reconnection. We handle all of it.

My panel is an older brand people warn about. Should I replace it?

Some older panel designs have breakers that can fail to trip. If yours is one of them, or shows heat damage, replacement is the safe choice. We'll open it and show you what we find.

From recent customers

After a surge took out our garage door opener and a TV, they installed a whole house protector at the panel. Quick job, clear price, no upsell.

Grace N.Surge protection

Our old 100 amp panel tripped every time the AC and dryer ran together. Bayshore quoted the 200 amp upgrade on the spot, handled the permit and had us back on by late afternoon.

Maria G.Panel upgrade

They installed our Level 2 charger in the garage and explained the load calculation in plain English. Clean conduit run, no mess, and the price matched the quote.

Priya S.EV charger installation

More electrical services in San Mateo

Electrical Panel Upgrade near San Mateo

Need electrical panel upgrade in San Mateo?

One call, a clear price and a time that works for you.

Call (888) 633-7804
Call (888) 633-7804