Based in the San Gabriel Valley. Serving Los Angeles County.
Commercial & Industrial Electrical Contractor Serving Los Angeles County
Tenant improvements, ground-up construction, warehouse and industrial power, switchgear and service upgrades, EV charging, lighting and 24/7 emergency response for general contractors, developers, and property and facility managers across LA County. Residential service too.
50+ projects completed across Southern California · 3+ years in the LA market
Call (877) 960-1122 · Send Plans for a Bid
CA License #1105569 · Bonded & Insured · 24/7 Emergency Service · HQ 433 S Cataract Ave, San Dimas
Where We’re Based, and Where We Work
Left Coast Electric isn’t headquartered in downtown Los Angeles, and we won’t pretend to be. We were founded in Claremont, where our CEO, Mark Reynoso, has lived his whole life, and our headquarters is now at 433 S Cataract Ave in San Dimas, which puts us closer to our team. That’s the eastern San Gabriel Valley, at the junction of the I-210 and SR-57.
From San Dimas, our crews work across Los Angeles County. Our home ground is the San Gabriel Valley and Pomona Valley, from Pasadena and Arcadia east to Claremont and Pomona, and south through West Covina, City of Industry, Walnut and Diamond Bar. We also take commercial and industrial projects farther into the county. Call with your address and scope, and we’ll tell you plainly whether it’s a good fit.
We’ve also done commercial work farther west, in Downtown Los Angeles (DTLA), Century City, El Segundo, Vernon and Commerce.
Who We Work For
Commercial and industrial work comes first for us. We are set up primarily for:
- General contractors who need an electrical subcontractor that prices the drawings clearly, stays on schedule and closes out cleanly
- Developers and owners building new pad buildings, industrial space and mixed-use projects
- Property and facility managers responsible for keeping tenants powered, buildings up to code and emergencies handled any time of day
Residential service comes second, but it’s still real work we do well: panel upgrades, rewiring, EV chargers and troubleshooting for homeowners across the same area.
Commercial & Industrial Electrical Services in LA County
Tenant improvements
Office, retail, restaurant, medical and entertainment buildouts, from a single suite to a full building re-tenant: demising, panels, branch circuits, lighting and controls, life-safety circuits and data rough-in. Tenant improvement electrical →
New construction
Ground-up commercial electrical from temporary power through final inspection: underground, service and distribution, building wiring, site lighting and utility coordination. Pre-construction electrical →
Industrial and warehouse power
480V services, feeders, motor controls, process and dock equipment, forklift charging and high-bay lighting for warehouses, distribution centers and plants. Power distribution →
Switchgear, panels and service upgrades
Main switchboards, distribution panels, transformers and service upgrades when a building takes on a heavier tenant, new equipment or electrification. Electrical panel upgrades →
EV charging
Charging for workplaces, multifamily garages, retail lots and fleet yards, starting with a load calculation and utility coordination so the chargers don’t outgrow the service.
Lighting
LED retrofits, energy-code lighting controls, high-bay and parking-lot lighting. Lighting upgrades →
24/7 emergency service
Outages, failed equipment, tripped mains and unsafe conditions, any hour. Call (877) 960-1122. Troubleshooting & diagnostics →
How Electrical Permits Work Across Los Angeles County
“Los Angeles” can mean very different permit offices. Los Angeles County contains dozens of incorporated cities plus large unincorporated areas, and who issues your electrical permit depends on exactly where the address is, not what the mailing address says.
Inside the City of Los Angeles: LADBS
Addresses inside the City of Los Angeles get electrical permits and inspections from the Los Angeles Department of Building and Safety (LADBS). Simple permits can be pulled online, and work that needs electrical plan review goes through the city’s electronic plan check. Inside the city, power comes from the Los Angeles Department of Water and Power (LADWP), not Edison.
Unincorporated LA County: LA County Public Works Building & Safety
Communities such as Altadena, Hacienda Heights, Rowland Heights, Valinda and Charter Oak are unincorporated, with no city government. Permits there come from Los Angeles County Public Works, Building and Safety, through the county district office assigned to the address.
Contract cities: also LA County Building & Safety
Some incorporated cities contract with LA County Public Works for building and safety services. The county’s current list is Artesia, Carson, Cerritos, Industry, Irwindale, La Cañada Flintridge, Lakewood, La Mirada, Lawndale, Lomita, Rolling Hills, Santa Fe Springs and Westlake Village. In City of Industry, for example, county staff work from an office at Industry City Hall.
Every other city: its own building department
Most cities run their own building departments, each with its own portal, counter hours and quirks. Arcadia takes submittals only online through its EDGE system. Pasadena requires contractors to hold a city business license. Diamond Bar schedules inspections Monday through Thursday. We handle the submittal, track plan-check comments and book inspections wherever the job is.
The Utility Matters Too
Southern California Edison serves most of the San Gabriel Valley, but not all of it. Pasadena has Pasadena Water and Power, Azusa has Azusa Light & Water, part of City of Industry is served by Industry Public Utilities, and the City of Los Angeles has LADWP. Each utility has its own service-planning steps, transformer rules and lead times. Pasadena, for example, requires space for a city-owned transformer on private property for larger services. We confirm the utility before we price any service work.
Recent Work
Quick Quack Car Wash, Covina: ground-up new construction
We did the electrical for the new Quick Quack Car Wash at 940 N. Azusa Ave in Covina, built from the ground up with general contractor Eleven Western Builders. See the Covina page →
Links 52, Upland: tenant improvement
We wired the Links 52 indoor golf venue tenant improvement in Upland, just across the county line. The venue has since closed.
Our Los Angeles County City Pages
Each city has its own permit office, utility and commercial districts. Start with the page for your project’s city:
- San Dimas (HQ): our headquarters city
- Claremont: where Left Coast Electric was founded
- La Verne: Old Town and senior-living facilities
- Glendora: Route 66 retail and medical suites
- Covina: car washes, restaurants and downtown storefronts
- Pomona: industrial and warehouse power
- City of Industry: 480V distribution, switchgear and dock equipment
- West Covina: retail, restaurant and medical TIs along the I-10
- Diamond Bar: office suites and hillside homes
- Walnut: neighborhood commercial and residential
- Azusa: work planned with Azusa Light & Water
- Arcadia: restaurants, retail and custom homes
- Pasadena: historic buildings and PWP services
- El Monte: Valley Blvd, Flair Park and the north side
Residential Electrical in LA County
For homeowners across the same area, we handle panel and service upgrades, whole-house rewiring, Level 2 EV chargers and 24/7 troubleshooting. House rewiring →
Areas We Serve in Los Angeles County
San Gabriel Valley · Pomona Valley · Foothill cities along the I-210 · I-10 and SR-60 corridors · Unincorporated communities including Altadena, Hacienda Heights, Rowland Heights, Valinda and Charter Oak · Commercial work completed in Downtown LA (DTLA), Century City, El Segundo, Vernon and Commerce · Commercial and industrial projects elsewhere in LA County by arrangement
Los Angeles County Electrical FAQ
Where is Left Coast Electric located?
Left Coast Electric is headquartered at 433 S Cataract Ave, San Dimas, CA 91773, in the eastern San Gabriel Valley. We serve commercial, industrial and residential customers across Los Angeles County from there.
Who issues electrical permits in Los Angeles County?
It depends on the address. The City of Los Angeles uses LADBS. Unincorporated areas and contract cities such as Industry use LA County Public Works Building and Safety. Most other cities, including Pasadena, Arcadia and West Covina, issue permits through their own building departments.
What is an LA County contract city?
A contract city is an incorporated city that contracts with Los Angeles County Public Works for building and safety services. The county’s list includes Artesia, Carson, Cerritos, Industry, Irwindale, La Cañada Flintridge, Lakewood, La Mirada, Lawndale, Lomita, Rolling Hills, Santa Fe Springs and Westlake Village.
Is Southern California Edison the electric utility everywhere in LA County?
No. Edison serves most of the San Gabriel Valley, but the City of Los Angeles is served by LADWP, Pasadena by Pasadena Water and Power, Azusa by Azusa Light & Water, and part of City of Industry by Industry Public Utilities.
What kinds of commercial electrical work do you do?
Tenant improvements, ground-up new construction, industrial and warehouse power, switchgear and service upgrades, EV charging, lighting upgrades and 24/7 emergency service, mainly for general contractors, developers, and property and facility managers.
Do you offer 24/7 emergency electrical service in LA County?
Yes. Call (877) 960-1122 any time.
Are you licensed and insured in California?
Yes. Left Coast Electric holds California Electrical Contractor License #1105569 and is bonded and insured.
Bidding a Project in Los Angeles County?
Send the drawings, the scope or the address, and we’ll confirm the jurisdiction and utility and return a clear, itemized bid. For outages, call any time.
Call (877) 960-1122 · Send Plans for a Bid
CA License #1105569 · Bonded & Insured · 24/7 Emergency Service · HQ 433 S Cataract Ave, San Dimas, CA 91773
