Commercial & industrial electrical contractors in Montclair, San Bernardino County. Local electricians, upfront pricing and fast scheduling.
(833) 652-8933 Request a quoteBusinesses in Montclair 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 Montclair and across San Bernardino 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 Montclair 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 Montclair.
Machinery hookups, motor controls, VFDs, 480V distribution, warehouse high-bay LED retrofits, EV fleet charging and backup power. Also serving nearby Claremont, Pomona, Chino, Ontario. Call (833) 652-8933.
We provide commercial electrician throughout Montclair and the surrounding communities of San Bernardino County.
Yes. Much of our commercial work in Montclair is scheduled nights and weekends to avoid disrupting customers.
Yes. We prepare load calculations and drawings and manage plan check and inspections for Montclair projects.
Yes, including hood and make-up air circuits, walk-in coolers, and dedicated equipment circuits.
“Got a 200 amp panel upgrade and an EV charger in one day. They handled the permit and the inspector passed it on the first visit.”
Derek W.“Had them do a full electrical inspection before we bought our house. The photo report saved us thousands in negotiations.”
Robert K.“They rewired our 1948 house room by room and we never lost power overnight. Walls were patched cleaner than we expected.”
Tom & Linda R.Upfront pricing · Same-day service · 24/7 emergency response