Top Rated Commercial Electrical Contractors Serving Cupertino, CA

If you really care about choosing a quality commercial electrical contractor, we’re here for you. Here’s your access to the best commercial electrical contractors serving Cupertino including 95014 and 95015. These commercial electrical contractors provide emergency electrician and outlet installations, and they also work on electrical safety assessments, electrical panel upgrades and commercial electrical services. For 22 years we’ve conducted the most accurate ratings and deepest research of local contractors, so you’ll be confident in choosing.

  • Last Updated Mar 04, 2026
  • 2,020 people sourced companies in Electrical Contractor - Commercial
    688 Verified Electrical Contractor - Commercial Customers Surveyed
688
2,020
1 of 5
Service Champions is a leading provider of premier home services in Northern California. The company's expertise includes electrical, plumbing, heatin...
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Main Services

Electrical Contractor
loarrowgo
Electric Vehicle Charging Station Contractor

Additional Services

Main Panel & Subpanel Replacement, Recessed Lighting, Outlets, Switches, Breaker Replacement, Whole or Partial Home Rewiring, Dedicated Circuits for Tripping Breakers, Troubleshooting, Electric Vehicle (EV) Charger Installation, Whole Home Generators, Home Surge Protectors

Coverage Areas

Alameda County, Contra Costa County, Santa Clara County, San Mateo County

Residential Only
Residential Only
Free Estimates
Free Estimates
Live Phone Call Answers
Live Phone Call Answers
Diamond Certified Expert Contributor
Diamond Certified Expert Contributor
  • Quick Connect
Hours CLOSED NOW
License:
817040
2 of 5
California Power and Light is a full-service electrical contracting firm that serves residential, commercial and industrial clients throughout Santa C...
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Main Services

Electrical Contractor
loarrowgo

Additional Services

Recessed & Track Lighting, Fixture Replacement & Repair, Panel Changes & Upgrades, Outlets, Switches & Dimmers, Paddle Fans, New Dedicated Circuits, Home Inspections & Repairs, Appliance Circuits, Emergency Troubleshooting

Brands

Square D

Coverage Areas

Santa Clara County

Family Owned
Family Owned
Established in 1996
Established in 1996
Residential & Commercial
Residential & Commercial
Free Quotes & Consultations
Free Quotes & Consultations
  • Quick Connect
Hours CLOSED NOW
License:
720684
3 of 5
Avant Electric, Inc. provides a wide range of electrical repair and installation services for residential and commercial clients in Santa Clara, San M...
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Main Services

Electrical Contractor
loarrowgo

Additional Services

Electrical Repairs & Installations, Generator Installations, Whole House Rewiring, Panel Upgrades, Level 2 & 3 Electric Vehicle Charging Stations, Main Switch Gear Upgrades & Transformers, Parking Lot Lighting

Brands

Leviton, Lutron, Siemens, SPAN, Square D

Coverage Areas

Santa Clara County, San Mateo County, Santa Cruz County

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Hours CLOSED NOW
License:
1045987
4 of 5
Pro Team Electric provides a wide range of electrical repair, installation, and maintenance services for residential and commercial clients in Santa C...
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Main Services

Electrical Contractor
loarrowgo

Additional Services

Electrical Installation, Repair & Maintenance, Electrical Panel Upgrades, Lighting System Installation, Whole Home Rewiring, Solar Panel Installation

Coverage Areas

Santa Clara County, Alameda County

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Hours CLOSED NOW
License:
1050865
5 of 5
E.G. Electrical Services offers full-service electrical work to residential, commercial and industrial clients in Santa Clara County. Services include...
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Main Services

Electrical Contractor
loarrowgo
Electric Vehicle Charging Station Contractor
loarrowgo

Additional Services

Tesla, Chevrolet and Toyota Charging Stations, Upgrades of Single-Phase and Three-Phase Systems (Up to 600 Volts), Main Panel and Subpanel Upgrades, LED Recessed Lighting, Kitchen and Bathroom Remodeling, Complete Rewiring, Commercial Lighting Systems, Commercial and Industrial Machinery Circuits, Back-Up Generators, Troubleshooting and Repairs of Electrical Systems

Coverage Areas

Santa Clara County

  • Quick Connect
Hours CLOSED NOW
License:
978103
Learn how to choose a Electrical Contractor - Commercial and more…

Diamond Certified Commercial Electrical Contractors Serve These Cupertino ZIP Codes

95014, 95015

Diamond Certified Commercial Electrical Contractors In Cupertino

Diamond Certified commercial electrical contractors serving Cupertino are rated an average of 4.6 out of 5 stars based on 889 reviews of 6 rated commercial electrical contractors.
Diamond Certified commercial electrical contractors in Cupertino Avg. Star Rating.

    Map of Cupertino, CA

    Cupertino was founded in 1855, and today, your 68,467 neighbors enjoy car shows, farmers markets, concerts, bar hopping and photography. Cupertinians use Diamond Certified commercial electrical contractors for commercial electrical contractor, parking lot lighting repair, electrical repairs, circuit breaker repair, emergency electrical work, and more.

    Frequently Asked Questions for Electrical Contractor - Commercial in Cupertino, CA
    Q: What are clients of Diamond Certified commercial electrical contractors saying about contractors in Cupertino, CA?
    A: Verified Service Champions Customer, 1 of 1869
    "They do what they say they're going to do, there are no extra charges, and they don't do any work that isn't authorized. He spotted some other electrical issues with my home that I wasn't aware of, and that was appreciated. They did a great job." - Brian P.
    All Survey Responses for Service Champions
    Verified California Power and Light Customer, 1 of 119
    "I've referred them many times. Henry knows exactly what he's doing, his team is very good, and I trust them to do whatever I need done. They get it right the first time and they don't overcharge. I text Henry and things just get done. All I have to do is just pay the bill." - Jennifer H.
    All Survey Responses for California Power and Light
    Verified Avant Electric, Inc. Customer, 1 of 10
    "I hired Avant Electric, Inc. years back in 2023 for some electrical work at my home and business. I couldn’t be more impressed with the quality of their service. From start to finish, the team was punctual, knowledgeable and extremely professional. They took the time to explain what needed to be done, offered fair and transparent pricing and completed the job efficiently with great attention to detail. I highly recommend Avant Electric to anyone looking for a reliable and skilled electrical contractor. Whether it’s a small repair or a full installation, you can count on them to deliver outstanding results every time. What stood out most was their commitment to safety and customer satisfaction. Everything was tested thoroughly and the work area was left spotless afterward. It’s clear they take pride in their craft and truly care about their clients." - Elena M.
    All Survey Responses for Avant Electric, Inc.
    Verified Pro Team Electric Customer, 1 of 12
    "They are transparent, easygoing and easy to communicate with. They just do good work. Those are the main factors. For most people, they look at pricing and the pricing is competitive. It's not over the top. Again, the communication and ability to get Donny on the phone for any concerns I might have, that goes a long way." - Juan F.
    All Survey Responses for Pro Team Electric
    Verified E.G. Electrical Services Customer, 1 of 257
    "He was honest, reliable, and on time. He did the work as he said he would. He was great. I liked his reliability the best. " - Marilyn T.
    All Survey Responses for E.G. Electrical Services
    Q: What are some of the most popular brands that Diamond Certified commercial electrical contractors use when working with Cupertino residents?
    A: Diamond Certified commercial electrical contractors use top-quality brands like Siemens, Panduit, Eaton, 3M Electrical and Lutron.
    Q: What types of electrical panel upgrades do commercial electrical contractors offer?
    A: Commercial electrical contractors offer a wide range of electrical panel upgrades, including upgrading from a fuse box to a circuit breaker panel, increasing panel capacity to accommodate additional circuits or higher loads, and replacing outdated or unsafe panels. They also offer services to add subpanels, which can distribute power more efficiently in larger commercial facilities, and to upgrade panels to meet the requirements of modern energy codes and standards. These upgrades can improve safety, energy efficiency, and the ability to accommodate new technologies and increased power demands.
    Q: Can Diamond Certified commercial electrical contractors work with Siemens products and similar items so I can get emergency electrician in Cupertino?
    A: Yes, Diamond Certified commercial electrical contractors can work with Siemens products and other similar items to provide emergency electrician services in Cupertino.
    Q: What did people search for when they wanted to find the best quality commercial electrical contractors in Cupertino?
    A: Lighting Control
    Outlet Installations
    Emergency Electrician
    Commercial Electrical Services
    Commercial Electrical Maintenance