Commercial Electrician for Repairs and Installations

City First Electric is a commercial electrical contractor serving businesses and commercial properties in Los Angeles, Rancho Cucamonga, and Irvine. Our commercial electricians provide electrical repairs, replacements, upgrades, and installations. Share your property location and project details so our team can review the work and discuss an on-site assessment.

Commercial Electrical Repair and Troubleshooting

For tripping breakers, lost power, or outlets, switches, and lights that are not working, our electrician assesses the reported problem before recommending repairs. Tell us which areas or equipment are affected and when the issue occurs. Learn more about our electrical repair and troubleshooting services.

Commercial Lighting Installation, Circuits, and Panel Upgrades

We provide lighting installation and replacements, wiring changes, dedicated circuits, and panel and subpanel upgrades. Equipment requirements, existing capacity, wiring routes, and site access are reviewed before the scope and price are confirmed.

Planning Work at an Occupied Property

Include your business hours, access requirements, and any scheduling restrictions in your request. Let our team know if the work affects tenants, shared areas, or equipment that must remain in operation. Any required power interruption and permit or utility coordination will be reviewed as part of planning the project.

What to Send for an Estimate

Provide the service address, a description of the work, clear photos of the affected equipment or work area, and equipment labels or model information when available. For planned installations, share plans and the intended equipment loads. Please do not remove panel covers to take photos.

See Our Project Work

View our electrical project gallery, including the apartment complex panel, feeder, and rough-in project.

Request Commercial Electrical Service

Our offices are in Los Angeles, Rancho Cucamonga, Irvine, and San Diego. We serve Los Angeles County, Orange County, San Bernardino County, Riverside County, and parts of Ventura County, and review San Diego requests for availability. Contact our team to confirm availability for your location.

Request Commercial Electrical Service or call 888-823-5998 Monday–Saturday, 7:00 AM–6:00 PM. A team member will confirm the final scope and price before approval or scheduling.