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Best Licensed Low Voltage Contractors in Sunnyvale, CA

12 low voltage companies registered in Sunnyvale hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.

How we chose: We identified 12 companies registered in Sunnyvale. 12 passed license verification. The 8 below are the top-ranked of those. 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. 1.Chriscom

    ✓ CSLB License #568125 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1989
    Phone
    (408) 744-9400

  2. 2.Sector Security And Comm

    ✓ CSLB License #584155 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1990
    Phone
    (408) 734-0109

  3. 3.Sight & Sound Security

    ✓ CSLB License #692026 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1994
    Phone
    (408) 773-9703

  4. 4.Dlc Communications LLC

    ✓ CSLB License #781171 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2000
    Phone
    (408) 859-3369

  5. 5.Wozcom Inc.

    ✓ CSLB License #796746 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2001
    Phone
    (408) 605-4321

  6. 6.Q C Construction

    ✓ CSLB License #943860 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2010
    Phone
    (408) 204-0094

  7. 7.V M I Inc.

    ✓ CSLB License #995912 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2014
    Phone
    (408) 745-1700

  8. 8.Assurance Low Voltage Security Corp

    ✓ CSLB License #1062399 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2020
    Phone
    (408) 991-5275

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Chriscom#568125On file1989
Sector Security And Comm#584155On file1990
Sight & Sound Security#692026On file1994
Dlc Communications LLC#781171On file2000
Wozcom Inc.#796746On file2001
Q C Construction#943860On file2010

Santa Clara 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: 193 active C-7 low voltage systems licenses in Santa Clara County, 12 of them registered in Sunnyvale. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Sunnyvale license has been held 25 years, and the longest-standing one dates to 1989. 8 of Sunnyvale's 12 licenses (66.7%) 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: 192 of the county's 193 licenses carry the same $25,000 bond California sets by statute. 16 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 Sunnyvale: common questions

How many licensed low voltage contractors are there in Sunnyvale?

12 active C-7 low voltage systems licenses are registered in Sunnyvale, out of 193 across Santa Clara County. 12 Sunnyvale-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. 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. 12 active C-7 low voltage systems licenses are registered in Sunnyvale and 193 across Santa Clara County, the longest-standing issued in 1989. 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 8 of Sunnyvale's 12 currently carry. 16 Santa Clara County licenses expire within 90 days.

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