Low-voltage contractor (C-7) in El Cajon, CA
5 licenses · checked Oct 27, 2026
There are 5 Low-voltage contractor (C-7) licenses with an address of record in El Cajon, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.7% of the 754 such licenses statewide; El Cajon ranks #24 of 323 CA cities for this license type. They are spread across 2 ZIP codes; the most common are 92021 (3), 92019 (2). Most list San Diego County. By business type: Corporation 4, Sole Owner 1. The median first-issue year is 2018; the oldest license dates from 2016. 4 of them come up for renewal or expiration in the next 12 months, so re-check status before you sign a contract.
What a Low-voltage contractor (C-7) license covers
Low Voltage Systems (C-7) covers communications, alarm, voice, data and similar systems up to 91 volts.
How to verify a license
Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Official lookup: CSLB Instant License Check.
Low-voltage contractor (C-7) licenses in El Cajon
Showing 5 of 5, A to Z. Listing order is alphabetical, not a recommendation.
- Advance Technical Construction#1047986 · 92019
- Automated Interiors#1054522 · 92021
- B Connected#1043379 · 92021
- Reel Technologies INC#1046540 · 92019
- Sd-Is#1020758 · 92021
Frequently asked questions
How many Low-voltage contractor (C-7) licenses are in El Cajon?
5 active licenses in the CSLB License Master data checked Oct 27, 2026 (0.7% of CA).
What does a Low-voltage contractor (C-7) license cover?
Low Voltage Systems (C-7) covers communications, alarm, voice, data and similar systems up to 91 volts.
How do I verify a Low-voltage contractor (C-7) license in El Cajon?
Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Use the license number shown here with the CSLB Instant License Check.
How many El Cajon Low-voltage contractor (C-7) licenses expire soon?
4 of 5 have an expiration date in the next 12 months. A license that lapses must be renewed before the holder can work under it again.
Other license types in El Cajon
General building contractor (69) · Electrical contractor (C-10) (22) · General engineering contractor (16) · Plumbing contractor (C-36) (16) · HVAC contractor (C-20) (16) · Landscaping contractor (C-27) (15) · Painting contractor (C-33) (12) · Tile contractor (C-54) (11) · Concrete contractor (C-8) (8) · Swimming pool contractor (C-53) (6) · Flooring contractor (C-15) (6) · Roofing contractor (C-39) (3)
All Low-voltage contractor (C-7) licenses in CA →
Source: CSLB License Master. Licensed California is independent and not affiliated with the licensing agency. Data checked Oct 27, 2026.