22 active CSLB-licensed solar contractors based in El Cajon, San Diego County. 1 verified against the company’s own website.
Listed by business address on the CSLB record. Companies based in nearby cities may also serve El Cajon — search your ZIP on the home page or browse the San Diego County.
Semper Solaris
El Cajon, San Diego County · CA 92020
CSLB #978152 · Clear (active) · Classes: B | C10 | C20 | C39 | C46
✔ Services systems installed by others / orphaned? Panel removal & reinstall: unknown✔ Services SunPower systems
Why verified? Quotes & sources (checked Oct 24, 2026)
Services systems installed by others / orphaned
At Semper Solaris, we’re proud to offer expert service, maintenance, and repair for all solar and battery systems across California—whether we installed them or not.
Source: company websiteServices SunPower systems
We work on all major solar brands, including SunPower, Sunnova, Enphase, SolarEdge, LG, Panasonic, and Tesla Powerwall.
Source: company websiteLicense match: license # shown on company website
Action Solar Solutions LLC
El Cajon, San Diego County · CA 92019
CSLB #1132102 · Clear (active) · Classes: C10
Not yet verified — services unknown
Advanced Solar
El Cajon, San Diego County · CA 92021
CSLB #1073380 · Clear (active) · Classes: C46
Not yet verified — services unknown
Cacy Electric
El Cajon, San Diego County · CA 92021
CSLB #780158 · Clear (active) · Classes: A | B | C10 | C20 | C46
Not yet verified — services unknown
D S C M INC
El Cajon, San Diego County · CA 92019
CSLB #861505 · Clear (active) · Classes: A | B | C46
Not yet verified — services unknown
Dana Logsdon Roofing & Solar Incorporated
El Cajon, San Diego County · CA 92020
CSLB #699151 · Clear (active) · Classes: B | C39 | C46
Not yet verified — services unknown
Electrical Solar And Lighting INC
El Cajon, San Diego County · CA 92021
CSLB #996690 · Clear (active) · Classes: C10
Not yet verified — services unknown
Flex Solar
El Cajon, San Diego County · CA 92019
CSLB #990072 · Clear (active) · Classes: C46
Not yet verified — services unknown
Johnson Solar Electric
El Cajon, San Diego County · CA 92019
CSLB #1035308 · Clear (active) · Classes: C10
Not yet verified — services unknown
Legacy Heating Air & Solar
El Cajon, San Diego County · CA 92020
CSLB #1106367 · Clear (active) · Classes: B | C10 | C20
Not yet verified — services unknown
Orange Solar
El Cajon, San Diego County · CA 92020
CSLB #1081867 · Clear (active) · Classes: C10 | C46
Not yet verified — services unknown
Perk Solar Electric
El Cajon, San Diego County · CA 92019
CSLB #920995 · Clear (active) · Classes: C10
Not yet verified — services unknown
Rl Roofing And Solar
El Cajon, San Diego County · CA 92021
CSLB #490394 · Clear (active) · Classes: B | C10 | C39 | C46
Not yet verified — services unknown
Semper Air
El Cajon, San Diego County · CA 92020
CSLB #1083681 · Clear (active) · Classes: B | C10 | C20 | C39 | C46
Not yet verified — services unknown
Sky Source Solar Electric
El Cajon, San Diego County · CA 92021
CSLB #1075064 · Clear (active) · Classes: C10
Not yet verified — services unknown
Smith Electrical Contractors INC
El Cajon, San Diego County · CA 92020
CSLB #871200 · Clear (active) · Classes: C10 | C46
Not yet verified — services unknown
Solar Repair INC
El Cajon, San Diego County · CA 92019
CSLB #1055414 · Clear (active) · Classes: C10 | C46
Not yet verified — services unknown
Solar Tech Energy Systems INC
El Cajon, San Diego County · CA 92021
CSLB #1106777 · Clear (active) · Classes: C10 | C39 | C46
Not yet verified — services unknown
Sun-tricity Solar Power
El Cajon, San Diego County · CA 92020
CSLB #989112 · Clear (active) · Classes: C46
Not yet verified — services unknown
Sunlight Solar INC
El Cajon, San Diego County · CA 92020
CSLB #997589 · Clear (active) · Classes: B | C10 | C17 | C39 | C46
Not yet verified — services unknown
Sunny Solar Power INC
El Cajon, San Diego County · CA 92020
CSLB #1042628 · Clear (active) · Classes: B | C10 | C46
Not yet verified — services unknown
West Coast Heating Air Solar Plumbing
El Cajon, San Diego County · CA 92020
CSLB #810930 · Clear (active) · Classes: C10 | C20 | C36
Not yet verified — services unknown