Best Licensed Electricians in Colton, CA
23 electrical contractors registered in Colton 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.
- 1,281 active C-10 electrical licenses in San Bernardino County; 23 registered in Colton
- 11 of Colton's 23 licenses (47.8%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Colton: 7 years
- Longest Colton licensure: since 1989
- 106 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1990
- Expires
- 2028-07-31
- Phone
- (909) 553-3673
2.C S I S
- Verified
- August 17, 2026
- Licensed since
- 2003
- Expires
- 2027-01-31
- Phone
- (909) 370-4200
- Verified
- August 17, 2026
- Licensed since
- 2007
- Expires
- 2027-03-31
- Phone
- (909) 708-6956
- Verified
- August 17, 2026
- Licensed since
- 2009
- Expires
- 2027-05-31
- Phone
- (909) 821-7580
- Verified
- August 17, 2026
- Licensed since
- 2009
- Expires
- 2027-07-31
- Phone
- (909) 731-2069
- Verified
- August 17, 2026
- Licensed since
- 2010
- Expires
- 2028-03-31
- Phone
- (909) 783-0333
- Verified
- August 17, 2026
- Licensed since
- 2012
- Expires
- 2027-08-31
- Phone
- (951) 662-8769
- Verified
- August 17, 2026
- Licensed since
- 2016
- Expires
- 2028-03-31
- Phone
- (866) 335-8205
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Tom Drews Electric | #598931 | On file | 1990 |
| C S I S | #816200 | On file | 2003 |
| Ranjo Contractors Inc. | #892376 | On file | 2007 |
| Solartronics Usa | #932764 | On file | 2009 |
| Team Aeg Electric | #935351 | On file | 2009 |
| Z Electric Wire Works Inc. | #944390 | On file | 2010 |
San Bernardino County electrical licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 1,281 active C-10 electrical licenses in San Bernardino County, 23 of them registered in Colton. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Colton license has been held 7 years, and the longest-standing one dates to 1989. 11 of Colton's 23 licenses (47.8%) 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: 1,280 of the county's 1,281 licenses carry the same $25,000 bond California sets by statute. 106 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.
Electricians in Colton: common questions
How many licensed electricians are there in Colton?
23 active C-10 electrical licenses are registered in Colton, out of 1,281 across San Bernardino County. 23 Colton-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 electricians?
Yes. California licenses contractors by classification, and C-10 is the CSLB classification that authorises this work. 23 active C-10 electrical licenses are registered in Colton and 1,281 across San Bernardino County, the longest-standing issued in 1989. Only CLEAR, unexpired licenses appear here.
How do I check an electrician'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 Colton's 23 currently carry. 106 San Bernardino County licenses expire within 90 days.