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Find Electrical wiring or panel upgrade pros in San Mateo

Avatar for BayArea Electrician
BayArea Electrician
4.9(
47
)

Serving San Mateo, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Ross was very helpful and patient with our project. We had a lot of questions about upgrading our panel and adding a sub panel for a hot tub and outdoor conduits. He was prompt with calling and texting and has been very responsive with getting the project moving from the start."
Lights Installation. Art Gallery.
Lights Installation. Art Gallery.
Lights Installation. Art Gallery.
Lights Installation. Art Gallery.
Lights Installation. Art Gallery.

+84

Response time12 hrs
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for GAETAWAY ELECTRIC INC
GAETAWAY ELECTRIC INC
5.0(
12
)

Serving San Mateo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"Jacob installed my new EV charger. He did an excellent job taking great care in cutting my drywall in the garage to access the main panel outside and then place the wiring in a manner that was as hidden as possible- all at a very fair price. I would recommend him highly and will call on him for future jobs."
Exterior LED lighting and address
Pergola ceiling fan/lighting.
Tesla home electric vehicle charging station and conduit install.
Commercial LED high bay lighting.
Generac home electric vehicle charging station, conduit/outlet install.

+9

Response time12 hrs
14 neighbors recently requested a quote
Recommended by16%of homeowners
Avatar for CA Electrical Group 24/7
CA Electrical Group 24/7
4.7(
45
)

Serving San Mateo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"Excellent service. I needed to upgrade my electric panel, Ben did an excellent job very professional. Installing switches, circuit breaker panels, relays, and other electrical control and distribution equipment was the right call. I look at several electricians with reasonable prices and CA Electrical Group was definitely the right call. I will highly recommend CA Electrical Group to all my friends. What was important to me was his daily commitment to start and finish the job the dates we agreed on."
apartment rewire
main service panel upgrade multi meters
tesla
new 3 phase commercial electrical panel
solar ready main panel

+123

Response time5 hrs
9 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for JC Electric
JC Electric
5.0(
9
)

Serving San Mateo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"JC Electric provided the best electrical service with great pricing and description of work. As a home owner, I want work that will last and will add value to my property. JC Electric installed an EV Charger and now I can charge my car from my own home thanks to their great work!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+51

8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for JC Electric
JC Electric
5.0(
7
)

Serving San Mateo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"Jaime worked well and quickly to install my smart panel and reroute existing wiring to the new location. He was responsive and everything went smoothly. I would do business again with him in the future."
Federal Pacific Panel
Federal Pacific Panel
Discoloration
Demoed out
100a 20/40 Space Sub Panel Replacement

+1

Response time1 day
48 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for pyramid electric
pyramid electric
4.9(
7
)

Serving San Mateo, CA and surrounding areas

Approved

In business since 2022

Emergency services offered

Customers say: Quick response

"Alexis responded quickly, gave a fair estimate while explaining the process quickly. He was friendly, knowledgeable, efficient and thorough. I would highly recommend for any electrical work needed."
Upgrading an electrical panel
Electrical Project
Electrical Project
Taking pride on my craftsmanship
Electrical Project

+9

Response time2 days
2 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for Precision Remodeling
Precision Remodeling
5.0(
8
)

Serving San Mateo, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I hired Bill to upgrade my electrical panel. He did a very good job, even the city inspector was impressed with his work. He is easy to work with and worked with us every step of the way. I highly recommend him."
Response time8 hrs
Response rate95%
6 neighbors recently requested a quote
Avatar for Budget Electric
Budget Electric
3.5(
173
)

Serving San Mateo, CA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Michael showed up on time and even called me as he was on his way to my home which I appreciated. He not only fixed my issue buy also explained to me how things work electrically. I would hire them again for any electrical issues and hope I get Michael again. Your company is lucky to have him."
Response time10 hrs
8 neighbors recently requested a quote
Recommended by57%of homeowners
Proper Power Electric
5.0(
5
)

Serving San Mateo, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Reliable Service and Excellent Customer Care I’ve been really impressed with this electric company from day one. The service is consistent, my power has been reliable, and I’ve noticed real savings on my monthly bills compared to my previous provider. Whenever I’ve had a question, their customer support team has been friendly, responsive, and genuinely helpful — no long hold times or confusing answers. I also appreciate their focus on clean energy and efficiency — it feels good knowing I’m supporting a company that actually cares about the community and the environment. Overall, top-notch experience. Highly recommend to anyone looking for dependable and affordable electric service. "
Response time5 hrs
2 neighbors recently requested a quote
Showing 1-10 of 25
FAQs for electrical wiring or panel upgrade projects in San Mateo, CA

While homeowners with substantial electrical knowledge might technically attempt a subpanel installation, most local building departments require permits and inspections for this type of work. Professional electricians understand local code requirements, can obtain necessary permits, and ensure the installation meets safety standards. Given the significant safety risks associated with incorrect electrical work, most homeowners benefit from hiring a licensed professional.

A standard subpanel installation takes an average of four to eight hours. This timeframe may extend if you're installing multiple subpanels or adding specialized circuits like those for spa equipment. Factors such as difficult access points, complex wiring paths, or permit processing times can also affect the overall project duration.

Adding a subpanel doesn't directly reduce electricity consumption or lower your utility bills. A subpanel simply redistributes power from your main panel to additional circuits. However, organizing your electrical system more efficiently may help prevent overloaded circuits and the associated problems. For actual cost savings, consider energy-efficient appliances and lighting instead.

The appropriate subpanel size depends on your specific electrical requirements. Consider the number and type of devices you'll be powering, potential future needs, and the capacity of your main electrical panel. An electrician can perform a load calculation to determine the most suitable amperage rating for your situation, ensuring you have adequate power without overpaying for unnecessary capacity.

A main electrical panel connects directly to your utility's power supply and contains your home's primary service disconnect. It distributes electricity throughout your entire house. A subpanel, by contrast, receives power from the main panel and redistributes it to a specific area of your home. Think of the main panel as the primary distribution point and the subpanel as a secondary branch that extends your electrical system's reach.

While electrical upgrades aren't as immediately visible as kitchen or bathroom renovations, they can contribute to your home's functionality and safety. Prospective buyers often appreciate updated electrical systems that can accommodate modern power demands. A properly installed subpanel that provides additional capacity for workshops, home offices, or future expansions could be an attractive feature for certain buyers, though the direct impact on home value varies by market.

The San Mateo, CA homeowners’ guide to electrical wiring or panel upgrades

From average costs to expert advice, get all the answers you need to get your job done.