Best Licensed Low Voltage Contractors in Upland, CA
18 low voltage companies registered in Upland 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.
- 220 active C-7 low voltage systems licenses in San Bernardino County; 20 registered in Upland
- 11 of Upland's 20 licenses (55.0%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Upland: 15 years
- Longest Upland licensure: since 1982
- 18 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1982
- Phone
- (909) 987-8936
- Verified
- August 17, 2026
- Licensed since
- 1995
- Phone
- (909) 912-3333
- Verified
- August 17, 2026
- Licensed since
- 1998
- Phone
- (909) 294-2802
- Verified
- August 17, 2026
- Licensed since
- 1999
- Phone
- (909) 949-1350
- Verified
- August 17, 2026
- Licensed since
- 2003
- Phone
- (626) 338-0400
- Verified
- August 17, 2026
- Licensed since
- 2008
- Phone
- (909) 476-2910
- Verified
- August 17, 2026
- Licensed since
- 2009
- Phone
- (626) 956-6826
- Verified
- August 17, 2026
- Licensed since
- 2011
- Phone
- (626) 242-6048
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Southwest Alarm Service | #433111 | On file | 1982 |
| Quality Teleservices | #714778 | On file | 1995 |
| Ireland Pro Systems | #744332 | On file | 1998 |
| Vci Construction LLC | #765716 | On file | 1999 |
| Marks Auto Sound Center Incorporated DBA Marks Audio Video | #824127 | On file | 2003 |
| Artistic Sound & Cinema Inc. | #923658 | On file | 2008 |
San Bernardino 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: 220 active C-7 low voltage systems licenses in San Bernardino County, 20 of them registered in Upland. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Upland license has been held 15 years, and the longest-standing one dates to 1982. 11 of Upland's 20 licenses (55.0%) 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: 220 of the county's 220 licenses carry the same $25,000 bond California sets by statute. 18 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 Upland: common questions
How many licensed low voltage contractors are there in Upland?
20 active C-7 low voltage systems licenses are registered in Upland, out of 220 across San Bernardino County. 18 Upland-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. 20 active C-7 low voltage systems licenses are registered in Upland and 220 across San Bernardino County, the longest-standing issued in 1982. 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 11 of Upland's 20 currently carry. 18 San Bernardino County licenses expire within 90 days.
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