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Best Licensed Low Voltage Contractors in Union City, CA

5 low voltage companies registered in Union City hold current CSLB licenses, verified against official records as of August 17, 2026. All 5 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 5 companies registered in Union City. 5 passed license verification. All 5 are listed below. Our methodology

We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.

  1. Verified
    August 17, 2026
    Licensed since
    1994
    Phone
    (510) 441-8434
  2. Verified
    August 17, 2026
    Licensed since
    2009
    Phone
    (510) 575-9902
  3. Verified
    August 17, 2026
    Licensed since
    2017
    Phone
    (408) 471-6804
  4. Verified
    August 17, 2026
    Licensed since
    2021
    Phone
    (510) 846-8035
  5. Verified
    August 17, 2026
    Licensed since
    2007
    Phone
    (408) 690-9632

Compare the top 5 at a glance

CompanyLicenseWorkers' compLicensed since
Lindenmuth Construction#692563On file1994
Stage 7 Inc.#929169On file2009
Emr Cpr LLC#1022502On file2017
X5 Networks LLC#1083705On file2021
A C C Security#901783Expired on file2007

Alameda County low voltage licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 155 active C-7 low voltage systems licenses in Alameda County, 6 of them registered in Union City. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Union City license has been held 9 years, and the longest-standing one dates to 1994. 5 of Union City's 6 licenses (83.3%) carry current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 155 of the county's 155 licenses carry the same $25,000 bond California sets by statute. 14 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.

Low Voltage Contractors in Union City: common questions

How many licensed low voltage contractors are there in Union City?

6 active C-7 low voltage systems licenses are registered in Union City, out of 155 across Alameda County. 5 Union City-registered companies passed our license verification, and all 5 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.

Does California license low voltage contractors?

Yes. California licenses contractors by classification, and C-7 is the CSLB classification that authorises this work. 6 active C-7 low voltage systems licenses are registered in Union City and 155 across Alameda County, the longest-standing issued in 1994. Only CLEAR, unexpired licenses appear here.

How do I check a low voltage contractor's license in California?

Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which 5 of Union City's 6 currently carry. 14 Alameda County licenses expire within 90 days.

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