Best Licensed Low Voltage Contractors in Berkeley, CA
5 low voltage companies registered in Berkeley 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.
- 155 active C-7 low voltage systems licenses in Alameda County; 5 registered in Berkeley
- 3 of Berkeley's 5 licenses (60.0%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Berkeley: 21 years
- Longest Berkeley licensure: since 1996
- 14 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 2002
- Phone
- (510) 235-1256
- Verified
- August 17, 2026
- Licensed since
- 2005
- Phone
- (510) 848-4411
- Verified
- August 17, 2026
- Licensed since
- 2020
- Phone
- (510) 423-6829
- Verified
- August 17, 2026
- Licensed since
- 1996
- Phone
- (510) 319-7099
- Verified
- August 17, 2026
- Licensed since
- 2020
- Phone
- (510) 507-0802
Compare the top 5 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| David Carroll Associates Inc. | #803902 | On file | 2002 |
| Alternative Techs Cooperative Inc. | #854541 | On file | 2005 |
| Enterprise Communications LLC | #1067902 | On file | 2020 |
| Caldera Electric | #727081 | Exempt or none on file | 1996 |
| Data Sync Communication Inc. | #1062042 | Expired on file | 2020 |
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, 5 of them registered in Berkeley. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Berkeley license has been held 21 years, and the longest-standing one dates to 1996. 3 of Berkeley's 5 licenses (60.0%) 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 Berkeley: common questions
How many licensed low voltage contractors are there in Berkeley?
5 active C-7 low voltage systems licenses are registered in Berkeley, out of 155 across Alameda County. 5 Berkeley-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. 5 active C-7 low voltage systems licenses are registered in Berkeley and 155 across Alameda County, the longest-standing issued in 1996. 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 3 of Berkeley's 5 currently carry. 14 Alameda County licenses expire within 90 days.
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