Low-voltage contractor (C-7) in San Diego, CA

24 licenses · checked Oct 27, 2026

There are 24 Low-voltage contractor (C-7) licenses with an address of record in San Diego, CA, in the CSLB License Master data checked Oct 27, 2026. That is 3.2% of the 754 such licenses statewide; San Diego ranks #1 of 323 CA cities for this license type. They are spread across 14 ZIP codes; the most common are 92111 (4), 92117 (3), 92101 (3). Most list San Diego County. By business type: Corporation 18, Sole Owner 4, Limited Liability 2. The median first-issue year is 2016; the oldest license dates from 2015. 12 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 San Diego

Showing 24 of 24, A to Z. Listing order is alphabetical, not a recommendation.

Frequently asked questions

How many Low-voltage contractor (C-7) licenses are in San Diego?

24 active licenses in the CSLB License Master data checked Oct 27, 2026 (3.2% 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 San Diego?

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 San Diego Low-voltage contractor (C-7) licenses expire soon?

12 of 24 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 San Diego

General building contractor (373) · Electrical contractor (C-10) (91) · Plumbing contractor (C-36) (78) · Painting contractor (C-33) (74) · Landscaping contractor (C-27) (61) · Flooring contractor (C-15) (43) · General engineering contractor (42) · HVAC contractor (C-20) (40) · Tile contractor (C-54) (20) · Concrete contractor (C-8) (16) · Roofing contractor (C-39) (14) · Cabinet and finish carpentry contractor (C-6) (14)

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.