Homversa
Find. Call. Fixed. - every listing checked against the official license or credential registry for its trade.

Best Licensed Low Voltage Contractors in Redwood City, CA

6 low voltage companies registered in Redwood City hold current CSLB licenses, verified against official records as of August 17, 2026. All 6 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 6 companies registered in Redwood City. 6 passed license verification. All 6 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
    1989
    Phone
    (650) 302-6148
  2. Verified
    August 17, 2026
    Licensed since
    2009
    Phone
    (650) 306-2500
  3. Verified
    August 17, 2026
    Licensed since
    2014
    Phone
    (650) 212-1544
  4. Verified
    August 17, 2026
    Licensed since
    2018
    Phone
    (650) 299-9126
  5. Verified
    August 17, 2026
    Licensed since
    1993
    Phone
    (408) 591-4442
  6. Verified
    August 17, 2026
    Licensed since
    2011
    Phone
    (650) 207-2162

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Quality Alarm Service#570590On file1989
Coit Com Satellite Services Inc.#927931On file2009
Access Cabling#992009On file2014
Lockworks Unlimited Inc.#1040981On file2018
Core Communication Inc.#662511Expired on file1993
Audio Production Group Inc.#961294Exempt or none on file2011

San Mateo 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: 75 active C-7 low voltage systems licenses in San Mateo County, 6 of them registered in Redwood City. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Redwood City license has been held 15 years, and the longest-standing one dates to 1989. 4 of Redwood City's 6 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: 74 of the county's 75 licenses carry the same $25,000 bond California sets by statute. 10 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 Redwood City: common questions

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

6 active C-7 low voltage systems licenses are registered in Redwood City, out of 75 across San Mateo County. 6 Redwood City-registered companies passed our license verification, and all 6 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 Redwood City and 75 across San Mateo 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 4 of Redwood City's 6 currently carry. 10 San Mateo County licenses expire within 90 days.

Other services in Redwood City

Low Voltage Contractors in nearby cities