San Mateo County
Electrical Panel Upgrades in Millbrae, CA
Open the panel cover on a typical Millbrae home and there is a good chance you are looking at the original 100-amp service it was built with in the 1950s or 60s.
Free estimate →Discuss your project
Tell Us About Your Project
Choose a service, enter the project city, and share any details that may help us understand the work. You can edit these fields before sending the form.
Serving homes and businesses in the San Francisco Bay Area and Santa Cruz.
(650) 550-0719Fox Electric is the marketing name of Fox Global Holdings LLC. CSLB #1145945, C-10.
Electrical Panel Upgrades for Millbrae Properties
Open the panel cover on a typical Millbrae home and there is a good chance you are looking at the original 100-amp service it was built with in the 1950s or 60s. The whole city went up during the post-war boom, so the ranch houses lining the Meadows, Lomita Park, and Murchison were sized for a single oven and a couple of bedrooms, not for an EV in the driveway, central air for those warm afternoons above SFO, and a kitchen full of modern appliances. That mismatch is why panel upgrades are one of our steadiest jobs here. The hillside neighborhoods add a second layer: in Millbrae Hills, Green Hills, and Mills Estate the meter and panel often sit on a steep exterior wall with limited footing, so the upgrade has to be staged around access that a flatland crew would not think twice about. Many of these homes also paired that 100-amp panel with undersized branch wiring and too few circuits for the kitchen and baths, so we look at the whole picture rather than just swapping the box. Fox Electric upgrades these Millbrae services to a modern 200-amp panel, sized with a real load calculation so there is headroom for whatever you add after the EV charger and the heat pump.
Coordinate the Millbrae permit with PG&E service work and confirm the planned outage window before installation. The hillside lots in Millbrae Hills, Green Hills, and Mills Estate are the real variable: panels mounted on steep exterior walls need safe staging and sometimes a relocated meter, and the post-war wiring behind a 100-amp panel is often worth assessing while the wall is open. We build to exceed Millbrae inspectors' requirements, not just clear them.
Electrical project resources for Millbrae
Millbrae separates a permit request into the scope of work, application information, and supporting submittals. City review follows the upload, and incomplete packages may be returned. The portal can also provide an authorized contractor access to an owner's project. Treat submission and permit issuance as separate steps, and confirm who is responsible for each document.
Prepare the scope, property and project-team information, and electronic submittals required for the application.
Follow the city-provided portal walkthrough when creating a new permit request.
Official source checked September 12, 2026.
Why Fox Electric
Match the Scope to the Property
A house, condominium, and small commercial space can have different access, ownership, and approval requirements.
Permit coordination for Millbrae
We confirm the project address, proposed work, and current local instructions before identifying the applicable permit and inspection steps. Utility participation is scoped separately when the project requires it.
Licensed C-10 Electrical Contractor
Fox Electric · Fox Global Holdings LLC · CSLB #1145945
Millbrae FAQ
Most Millbrae homes still have a 100-amp panel. Do I actually need 200 amps?
Often yes, but we confirm it with a load calculation before quoting the upgrade. If you are only adding one thing — say an EV charger — a load-management device may be enough on its own. But the typical Millbrae homeowner adding EV charging, central air, and a remodeled kitchen on top of a 1950s 100-amp service usually benefits from a 200-amp upgrade so the next install is plug-and-play.
My house is on a hillside in Green Hills with the panel on a steep exterior wall. Is that a problem?
It is a planning factor, not a dealbreaker. Many Millbrae Hills and Green Hills homes have the meter and panel on a sloped exterior wall with tight footing, so we stage the swap safely and, where it makes sense, relocate or reset the meter as part of the job. We work these hillside lots regularly and plan the access before install day.
Does the upgrade go through PG&E or the City of Millbrae?
Both have a role. PG&E handles the service disconnect and reconnect at the meter, and the City of Millbrae Building Division issues the electrical permit and runs the inspection. We pull the permit, schedule the PG&E window, and close out the inspection so you have a clean record for resale.
Will my 1950s Millbrae home need rewiring along with the panel?
Sometimes. A lot of post-war Millbrae homes paired that original 100-amp panel with undersized branch wiring and too few kitchen and bath circuits. We assess it during the load walkthrough and tell you honestly whether the panel upgrade stands alone or whether adding a few circuits at the same time is the smarter move — without pushing a full rewire you do not need.
How long will my power be off for the panel upgrade?
The outage window depends on the approved work, PG&E scheduling and the required Millbrae inspections. Confirm the disconnect and reconnect arrangements before the installation date, including what happens if work or inspection takes longer than planned.
My Mills Estate house is from the 1950s with a 100 A panel on the downhill wall. What does the upgrade involve in Millbrae?
Assess the existing service and access to the downhill panel before choosing equipment. For a Mills Estate or Meadows property, staging and a practical work area may affect the scope. Coordinate the Millbrae permit with PG&E's service requirements before arranging an outage.
Does Millbrae charge more if the panel upgrade and an EV circuit are permitted together?
Describe the panel upgrade and charger on the same proposed scope and ask Millbrae how the current fee schedule combines those items. Confirm issuance and other charges with the Building Division rather than adding figures from an older schedule.
Get in Touch
Electrical Panel Upgrades in Millbrae
Choose a service, enter the project city, and share any details that may help us understand the work. You can edit these fields before sending the form.
Ask about the scope and fee for an assessment, diagnosis, or inspection before booking.
(650) 550-0719Related electrical guides
Continue with a guide that addresses the next planning decision.
EV Charging
Can a 100-Amp Panel Handle an EV Charger?
A 100-amp label is a starting fact. Demand, equipment condition, circuit space, and charging needs determine the installation.
Read the guide
Panels & Service Upgrades
7 Signs Your Electrical Panel Needs an Assessment
Recognize urgent electrical symptoms and separate a wiring repair, a panel replacement, and a service-capacity upgrade.
Read the guide