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Service Areas
20+ cities
San Bernardino County
Adelanto
San Bernardino County
Apple Valley
San Bernardino County
Barstow
San Bernardino County
Bloomington
San Bernardino County
Chino
San Bernardino County
Chino Hills
San Bernardino County
Colton
San Bernardino County
Fontana
San Bernardino County
Hesperia
San Bernardino County
Highland
San Bernardino County
Montclair
San Bernardino County
Ontario
San Bernardino County
Rancho Cucamonga
San Bernardino County
Redlands
San Bernardino County
Rialto
San Bernardino County
San Bernardino
San Bernardino County
Upland
San Bernardino County
Victorville
San Bernardino County
Yucaipa
San Bernardino County
Yucca Valley
20+ cities
Riverside County
Banning
Riverside County
Cathedral City
Riverside County
Coachella
Riverside County
Corona
Riverside County
Eastvale
Riverside County
Hemet
Riverside County
Indio
Riverside County
Jurupa Valley
Riverside County
La Quinta
Riverside County
Lake Elsinore
Riverside County
Menifee
Riverside County
Moreno Valley
Riverside County
Murrieta
Riverside County
Palm Desert
Riverside County
Palm Springs
Riverside County
Perris
Riverside County
Riverside
Riverside County
San Jacinto
Riverside County
Temecula
Riverside County
Wildomar
19+ cities
San Diego County
Carlsbad
San Diego County
Chula Vista
San Diego County
Coronado
San Diego County
Del Mar
San Diego County
El Cajon
San Diego County
Encinitas
San Diego County
Escondido
San Diego County
Imperial Beach
San Diego County
La Mesa
San Diego County
Lemon Grove
San Diego County
National City
San Diego County
Oceanside
San Diego County
Poway
San Diego County
San Diego
San Diego County
San Diego Country Estates
San Diego County
San Marcos
San Diego County
Santee
San Diego County
Solana Beach
San Diego County
Vista
Coverage Area
Serving All of Southern California
From the High Desert to the coast, Option One Solar provides expert solar installation and energy storage services across four major Southern California counties. Our local teams know your area, your utility provider, and the permitting process for your jurisdiction.
San Bernardino
20+ Cities Served
Riverside
20+ Cities Served
San Diego
20+ Cities Served
Orange
7+ Cities Served
Don't see your city? Contact us — we likely serve your area.
Why Option One Solar
Why Southern California Chooses Option One Solar
Over five decades of trusted solar installation across Southern California. Here's what sets us apart.
Local Expertise
Based in Apple Valley and serving all of Southern California, our team understands local utility rates, permitting requirements, and the unique climate considerations of each county we serve.
Licensed & Certified
Fully licensed C-10 (Electrical) and C-46 (Solar) contractor. Every installation meets or exceeds California building codes and NEC standards. License #985340.
25-Year Warranty
Every system is backed by a comprehensive 25-year warranty covering panels, inverters, and workmanship. We stand behind our installations with dedicated long-term support.
Flexible Financing
From solar loans to PPAs, we offer multiple paths to ownership and savings. Our customized financing ensures that going solar remains a smart, affordable investment for Southern California homes and businesses looking to beat rising energy costs.
Get Started
Ready to Go Solar?
Get your free quote today and start saving on energy bills. Our team will design a custom solar solution for your home or business.