Commercial Electrical
Commercial Electrical Services in Marin, Sonoma & Napa County
When it comes to your business, you want superior service. That definitely extends to your company’s electrical needs. With Ongaro & Sons, you receive exactly that, superior electrical service.
Our certified and licensed commercial electricians have the knowledge and experience necessary to handle any project you have, large or small. We work with businesses throughout the North Bay, including the surrounding communities in Marin, Sacramento, Sonoma, and Napa counties.
Our expertise in electrical systems extends to retail storefronts, restaurants, office buildings, schools, medical facilities, and new constructions, as well as many other types of commercial businesses.
And given our high level of experience in commercial settings, you can rely on our professionals to complete your job on time and on budget, all safely and efficiently.
Commercial Electrical Installations and Upgrades
As a California, business owner, there are always hoops you have to jump through to keep your company up to date with all the requirements and regulations out there. Your electrical is one of the important hoops.
When it comes time to upgrade your existing electrical or you are planning to remodel, our professional electricians can assist you. For a no-obligation consultation, call us at 415-741-2820 or request services online.
From your electrical panels to your light fixtures to your larger systems, we will walk you through your choices to be sure your selection is the right one for you and your the North Bay company. Then we will run with the project, expertly installing the upgrades for you.
New Construction

Any type of new construction project requires a knowledgeable and experienced commercial electrician from the very beginning of the project.
There are numerous nuance and details that only an electrician with the professional training and background can know, in addition the obvious huge-system decisions to be made and implemented. Sometimes, these nuances and details are the difference between saving or spending vast amount of money.
Our licensed Ongaro electricians are ready to discuss your project today. Call us at 415-741-2820 or request services online for a consultation.
Commercial Electrical Services We Provide
18 servicesThe electrical field is vast, and our experienced electricians can address any commercial electricity needs your company has. Here’s a short list of only some of our services:
Be sure to contact us if what you require isn’t here, we more than likely handle that as well.
How Can We Help You?
Ongaro & Sons has a team of licensed commercial electricians for businesses in San Anselmo, Folsom, Marin City, and throughout other parts of the North Bay. For a free consultation on how we can help your business, call us at 415-741-2820 or request services online.
Schedule Your Commercial Electrical Service
Whether you need electrical upgrades, new construction support, troubleshooting, or commercial power solutions, our licensed electricians are ready to help. We proudly serve Sonoma, Marin, and Napa counties, including Santa Rosa, San Rafael, Novato, Glen Ellen, and surrounding cities. Call us now at 415-741-2820 or book your appointment online.
Your Comfort, Our Priority
Ongaro & Sons is your trusted heating, cooling, plumbing, electrical, and solar expert, specializing in reliable maintenance and repair services that keep your home running efficiently year-round.
Our certified technicians deliver unmatched expertise with fast, friendly service across Marin, Sonoma and Napa County. From HVAC tune-ups to plumbing repairs and electrical upgrades or solar solutions, we focus on energy-efficient performance and long-term comfort. Count on us to maintain the systems that power your home and keep your environment just the way you like it.
Licensed, Insured, Background-Checked
Our technicians are licensed, experienced, and trained to service all makes and models.
Locally Owned and Operated
Serving the Napa, Marin, and Sonoma communities with personalized, hometown service.
Reliable Repairs
We respond quickly and get the job done right the first time, with no surprises.
Since 1932
Why Ongaro & Sons for Commercial Electrical
Most commercial electrical calls are really capacity questions dressed up as fault-finding.
Schedule Service →C-10 licensed with the load calculations to match
Adding equipment, a charger bank or a kitchen line is a capacity question first. We calculate it rather than fill the spare breaker spaces and hope.
Three-phase and commercial panels handled
Commercial distribution is not a larger version of a house. Panel schedules, breaker coordination and correct labelling are part of the job.
Lighting retrofits costed on the real return
Retrofits pay back through consumption and maintenance, not through the fixture price. We will tell you when the numbers do not justify it.
Standby power scoped by circuit
As a Certified Generac Generator Installer we scope backup around the circuits your business cannot lose, which is usually cheaper than backing up the building.
Permitted, inspected and documented
Commercial electrical work is inspected work, and the panel schedule you are left with is part of the deliverable. Ongaro & Sons has served North Bay businesses since 1932.

Discount
Membership
Ongaro Maintenance Plans
Annual maintenance on your home systems provides safeguards and comfort to you and your family. Members get priority scheduling, discounts, and proactive checkups that catch problems early.
Member Discounts
5% off every repair and replacement, all year long.
Peace of Mind
Proactive checkups catch issues before they become big problems.
Courtesy Reminders
We call you to schedule: never miss a seasonal service.
Value That Lasts
With Ongaro & Sons, you’re investing in quality, integrity, and service that stands the test of time. Explore our current promotions and see the difference real value makes for your HVAC, plumbing, and electrical needs.
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Read MoreFrequently Asked Questions
Are your commercial electrical services compliant with local codes?
Yes, our electricians are fully licensed and trained to comply with all national, state, and local codes to ensure every project passes inspection.
How often should my commercial electrical system be inspected?
You should schedule a professional inspection annually. High-traffic or high-demand facilities, like restaurants, warehouses, or manufacturing plants, may require more frequent inspections to ensure safety and code compliance.
What are common signs of electrical problems in a commercial building?
Flickering lights, frequent breaker trips, burning smells, buzzing panels, and outlets that are hot to the touch may all signal serious electrical issues that need immediate attention.