Top Rated Commercial Electrical Contractors Serving Sunnyvale, 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 Sunnyvale including 94087, 94086, 94085, 94089 and 94088. These commercial electrical contractors provide commercial wiring and electrical system design and installation, and they also work on commercial electrical system expansions and upgrades, data cabling and networking and security system wiring and installation. 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 May 15, 2026
2,020 people sourced companies in Electrical Contractor - Commercial
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
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
California Power and Light is a full-service electrical contracting firm that serves residential, commercial and industrial clients throughout Santa C...
IRBIS Air Plumbing Electrical provides a wide range of electrical repair, installation, and maintenance services for homeowners in Santa Clara, San Ma...
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
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
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
Electric Vehicle Charging Station Contractor
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
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
Additional Services
Electrical Installation, Repair & Maintenance, Electrical Panel Upgrades, Lighting System Installation, Whole Home Rewiring, Solar Panel Installation
Diamond Certified Commercial Electrical Contractors Serve These Sunnyvale ZIP Codes
94087, 94086, 94085, 94089, 94088
Diamond Certified Commercial Electrical Contractors In Sunnyvale
Diamond Certified commercial electrical contractors serving Sunnyvale are rated an average of 4.6 out of 5 stars based on 910 reviews of 6 rated commercial electrical contractors. Diamond Certified commercial electrical contractors in Sunnyvale Avg. Star Rating.
We make you an expert at choosing a high-quality commercial electrical contractor in the Sunnyvale area.
For those who love quality local commercial electrical contractors.
Within our Diamond Certified Resource:
You choose from only top rated Diamond Certified commercial electrical contractors that serve our Sunnyvale area.
You see each contractor’s deeply researched report from our research.
You’ll love and refer your friends and family to your new Sunnyvale area Diamond Certified commercial electrical contractor. They provide expert services, including commercial electrical system expansions and upgrades, security system wiring and installation, data cabling and networking, electrical safety assessments, commercial electrical troubleshooting, and more.
Every Diamond Certified commercial electrical contractor that serves residents in 94087, 94086, 94085, 94089 and 94088 performs various specialties, including electrical equipment upgrades, commercial electrical maintenance, energy-efficient lighting solutions, electrical code compliance, and electrical system design and installation.
How to Choose a Quality Sunnyvale Commercial Electrical Contractor for Your Family
Click the name of the contractor to get to their Diamond Certified Company Report page.
Watch their Diamond Certified Video Profile and other videos that we’ve created for you.
Read their verbatim client survey responses and our researched articles.
Get helpful electrical tips if they are a Diamond Certified Expert Contributor.
Call or email them to schedule an appointment.
Become a Diamond Certified Preferred Member and Join Your Sunnyvale Neighbors
If you love quality local contractors, this is for you. Become a Diamond Certified Preferred Member (always free) and get a double performance guarantee, extra guides and tips, our annual Diamond Certified Directory, and more.
Your Diamond Certified Resource. We make you an expert at choosing.
We make you an expert at choosing local companies by giving you the most accurate ratings, deeply researched company reports and Diamond Certified Guide of all Resource Guides, which cover 70+ industries in the Auto, Home, Health and Personal service categories. Each guide contains 16 key articles that are separated into “Before, During and After the Job” tabs. These are written to guide you through each phase of hiring, starting, managing and ending a job in that specific type of service.
Diamond Certified Resource Compared to Crowd-Sourced Review Sites
Diamond Certified Resource’s ratings of local companies are based on surveys of only verified real customers, so they are the most accurate. This beats crowd-sourced review sites like Yelp, Angi or even Google that are plagued with fake, manipulated, cherry-picked and non-customer reviews, which produce inaccurate and often inflated rating scores.
Diamond Certified Resource’s deeply researched reports of top rated Diamond Certified companies include everything you need to see to be very confident in choosing a top rated local company. Each company report includes detailed quality ratings and scoring, verbatim customer survey responses, a profile video, a company story video, a capabilities table, a photo gallery, researched articles, unique expert contributions from the company’s owner, and more. This beats crowd-sourced review sites that solicit companies to “claim their business listing” and add any type of info to their profiles. This sounds good, but it has led to company profiles that are littered with false claims and incomplete info.
Sunnyvale was founded in 1850, and today, your 145,945 neighbors enjoy winery tours, seal watching, craft nights, quad biking and kite surfing. Sunnyvalians use Diamond Certified commercial electrical contractors for electrical system design and installation, commercial electrical services, electrical equipment upgrades, parking lot lighting repair, data cabling and networking, and more.
Frequently Asked Questions for Electrical Contractor - Commercial in Sunnyvale, CA
Q: What are clients of Diamond Certified commercial electrical contractors saying about contractors in Sunnyvale, CA?
A: Verified Service Champions Customer, 1 of 1929 "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 IRBIS Air Plumbing Electrical Customer, 1 of 44 "Everyone is very professional, extremely personable and their work and standards are of the highest quality. All of above and they are very timely." - Christina P. All Survey Responses for IRBIS Air Plumbing Electrical 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 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 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
Q: What are some of the most popular brands that Diamond Certified commercial electrical contractors use when working with Sunnyvale residents?
A: Diamond Certified commercial electrical contractors use top-quality brands like Schneider Electric, Panduit, Philips, Siemens and Wago.
Q: What types of commercial wiring do commercial electrical contractors offer?
A: Commercial electrical contractors offer a range of wiring services including installation, maintenance, and repair of electrical wiring systems. These services cover lighting systems, power distribution, backup power systems, HVAC controls, security systems, fire alarms, data networks, and other low voltage systems. They also offer wiring for specialized equipment and machinery, and can design custom electrical solutions for specific business needs. Compliance with local and national electrical codes is ensured in all their wiring tasks.
Q: Can Diamond Certified commercial electrical contractors work with Siemens products and similar items so I can get commercial wiring in Sunnyvale?
A: Yes, Diamond Certified commercial electrical contractors can work with Siemens products and similar items for commercial wiring in Sunnyvale.
Q: What did people search for when they wanted to find the best quality commercial electrical contractors in Sunnyvale?
A: Electrical Repairs
Data Cabling And Networking
Electrical System Design And Installation
Data Cabling And Networking
Outlet Installations
Sunnyvale is our home and we love it! Here you’ll find the best spots to revisit, the Sunnyvale events schedule, local social media links, stories of our Sunnyvale area unsung heroes and much more. Connect with your neighbors and share what you love about our hometown. Plus, join us as a Sunnyvale Diamond Certified Preferred Member (always free).
Downtown Sunnyvale is known for its modern architecture and welcoming community atmosphere. Photo: Sundry Photography
From ensuring panel safety and installing an EV charger to GFCI protection and smart home upgrades, these insights from Diamond Certified Expert Contributors will help you better u
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