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Licensed Low Voltage Contractors in El Cajon, California

Updated November 1, 2026 from CSLB's public license file · C-7 Low Voltage Systems Contractor

  • 29licensed low voltage contractors
  • 28active (Clear)
  • 3.4%with a suspension
  • 48.3%workers' comp exempt
  • 12.7 yrsmedian time licensed
  • 69%corp / LLC / partnership (31% sole owner)
  • 0new in the last 12 months
  • —change tracking began November 1, 2026

CSLB's public data lists 29 low voltage contractors with a mailing address in El Cajon, and 28 of them (96.6%) show a Clear primary status.

The share with a suspension, 3.4%, is 1.2 points lower than the San Diego County rate for the same license (4.6%). 48.3% report a workers' comp exemption, 7.5 points higher than the statewide figure for low voltage contractors (40.8%), so many of these businesses say they have no employees.

0 of these licenses are less than a year old, while 55.2% have been held for 10 years or more. The median is 12.7 years.

In California this work generally calls for the C-7 Low Voltage Systems Contractor license (or a B license when it is part of a larger multi-trade job). See the C-7 Low Voltage Systems Contractor guide for what the license covers.

How to check a low voltage contractor's license in El Cajon

  1. Open the low voltage contractor's profile from the table below (or search El Cajon listings by name). Check that C-7 appears among its classifications and that the primary status reads Clear. What C-7 covers.
  2. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  3. Ask for the pocket license and a photo ID and match the name to your contract. Work of $1,000 or more needs a license (the $1,000 rule), and a down payment can't exceed $1,000 or 10% (down payment rules).

All 29 low voltage contractors in El Cajon

El Cajon low voltage contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed low voltage contractors in El Cajon
Business nameLicense #StatusYearsWorkers' compBond
Astro Mechanical Contractors INC 267392 Clear 55 Insured On file
Lynn's Locksmith Service 465109 Clear 42 Insured On file
Sciens Standard Electronics Division 590876 Clear 36 Insured On file
Watchlight Corporation the 594919 Clear 36 Insured On file
House of Automation INC 605370 Clear 36 Insured On file
Sound Maintenance 643237 Clear 34 Exempt On file
D C Communications & Security 709139 Clear 31 Exempt On file
A 5 Computer Services 800739 Clear 25 Exempt On file
Emcom Electronic Systems INC 820216 Clear 23 Insured On file
Enhanced Voice & Data Networks INC 881429 Clear 20 Insured On file
Andrus Smart Technologies INC 900330 Clear 19 Insured On file
Silverstrand Technologies INC 928728 Clear 17 Insured On file
Astro Building Services 988640 Clear 12 Exempt On file
Ag Solutions 990605 Clear 12 Exempt On file
Sd-Is 1020758 Clear 10 Exempt On file
B Connected 1043379 Clear 8 Exempt On file
Reel Technologies INC 1046540 Clear 8 Insured On file
Advance Technical Construction 1047986 Clear 7 Insured On file
Automated Interiors 1054522 Clear 7 Insured On file
Asi Commercial Construction 1073772 Clear 5 Exempt On file
Teldata Enterprise Networks 1078179 Clear 5 Insured On file
E Z - Lynk 1107404 Clear 3 Exempt On file
Video Audio Network 1111898 Clear 3 Exempt On file
Matrix Computing Technology INC 1118169 Clear 2 Exempt On file
Renum Low Voltage Systems 1131181 Clear 1 Exempt On file
Emcom Services INC 1135558 Clear 1 Insured On file
Jlb Communications INC 1136195 Clear 1 Insured On file
Gravitt Low Voltage Solutions 1145425 Clear 1 Exempt On file
Elite Cabling Systems 970722 Susp: contractor's bond 14 Exempt On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed low voltage contractors are in El Cajon?

CSLB's current public file lists 29 low voltage contractors with a El Cajon mailing address. 28 have a Clear status, and 82.8% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a low voltage contractor need in California?

Look for C-7 on the license. 29 businesses in El Cajon hold it. Small jobs under $1,000 with no permit and no employees are exempt; everything else needs a license (details).

How do I check a low voltage contractor's workers' comp?

Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In El Cajon, 51.7% of low voltage contractors list a policy, 48.3% claim an exemption and 0% show no current coverage. Confirm the policy with CSLB's workers' comp search before work starts. How to check workers' comp.

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