Licensed Low Voltage Systems (C-7) contractors in San Ramon, CA

The California Contractors State License Board (CSLB) lists 10 Low Voltage Systems (C-7) contractors in San Ramon, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of October 6, 2026.

10 contractors

1. Armendariz Wiring And Communications

   San Ramon, CA · CSLB #858754 · as of October 6, 2026
   Active · clear
2. Audio Video Works

   San Ramon, CA · CSLB #908457 · as of October 6, 2026
   Active · clear
3. Cal Tech Security Services INC

   San Ramon, CA · CSLB #1000133 · as of October 6, 2026
   Active · clear
4. David Stone

   San Ramon, CA · CSLB #1148999 · as of October 6, 2026
   Active · clear
5. Defentec Security

   San Ramon, CA · CSLB #547780 · as of October 6, 2026
   Active · clear
6. Global Master Tech

   San Ramon, CA · CSLB #1108838 · as of October 6, 2026
   Active · clear
7. Graham Communcations International INC

   San Ramon, CA · CSLB #929637 · as of October 6, 2026
   Active · clear
8. Paramount Home Theater

   San Ramon, CA · CSLB #914677 · as of October 6, 2026
   Active · clear
9. Ranger Installations INC DBA Ranger Audio Video Integration

   San Ramon, CA · CSLB #999202 · as of October 6, 2026
   Active · clear
10. Valiant Low Voltage

    San Ramon, CA · CSLB #1122091 · as of October 6, 2026
    Active · clear

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Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.