Commercial & industrial electrical contractors in El Cajon, San Diego County. Local electricians, upfront pricing and fast scheduling.
(833) 652-8933 Request a quoteBusinesses in El Cajon cannot afford electrical downtime. Phasethree Electric is a commercial electrical contractor serving offices, retail stores, restaurants, warehouses, medical suites, schools and light industrial facilities in El Cajon and across San Diego County with responsive repair, scheduled maintenance, tenant improvements and new construction electrical.
Tripping breakers on equipment circuits, lighting outages, failed contactors, parking lot lighting, sign circuits and emergency lighting tests. Maintenance agreements give El Cajon businesses priority scheduling and after-hours work so you never close for electrical issues.
Design-build electrical for build-outs, panel and service upgrades, 3-phase distribution, dedicated equipment circuits, data and low-voltage rough-in, exit and emergency lighting and final inspection coordination with the City of El Cajon.
Machinery hookups, motor controls, VFDs, 480V distribution, warehouse high-bay LED retrofits, EV fleet charging and backup power. Also serving nearby Spring Valley, Lakeside, La Mesa, Santee. Call (833) 652-8933.
We provide commercial electrician throughout El Cajon and the surrounding communities of San Diego County.
Yes. Much of our commercial work in El Cajon is scheduled nights and weekends to avoid disrupting customers.
Yes. We prepare load calculations and drawings and manage plan check and inspections for El Cajon projects.
Yes, including hood and make-up air circuits, walk-in coolers, and dedicated equipment circuits.
“They rewired our 1948 house room by room and we never lost power overnight. Walls were patched cleaner than we expected.”
Tom & Linda R.“Hot tub circuit and disconnect installed and inspected in a week. Everything was labeled and explained.”
Carlos D.“Our restaurant lost power on a Friday night. They had the failed contactor replaced and the walk-in back up before we lost any product.”
Angela M.Upfront pricing · Same-day service · 24/7 emergency response