Best Licensed Electricians in San Mateo, CA
61 electrical contractors registered in San Mateo 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.
- 514 active C-10 electrical licenses in San Mateo County; 61 registered in San Mateo
- 29 of San Mateo's 61 licenses (47.5%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in San Mateo: 21 years
- Longest San Mateo licensure: since 1975
- 41 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1975
- Expires
- 2028-09-30
- Phone
- (650) 692-7333
- Verified
- August 17, 2026
- Licensed since
- 1976
- Expires
- 2027-11-30
- Phone
- (650) 312-8222
- Verified
- August 17, 2026
- Licensed since
- 1980
- Expires
- 2028-03-31
- Phone
- (650) 345-2241
- Verified
- August 17, 2026
- Licensed since
- 1980
- Expires
- 2026-11-30
- Phone
- (650) 578-1854
- Verified
- August 17, 2026
- Licensed since
- 1985
- Expires
- 2026-10-31
- Phone
- (650) 678-4725
- Verified
- August 17, 2026
- Licensed since
- 1985
- Expires
- 2027-06-30
- Phone
- (650) 349-3777
- Verified
- August 17, 2026
- Licensed since
- 1988
- Expires
- 2027-03-31
- Phone
- (415) 505-2932
- Verified
- August 17, 2026
- Licensed since
- 1991
- Expires
- 2027-05-31
- Phone
- (650) 699-0574
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Imbelloni Construction Co Inc. | #304975 | On file | 1975 |
| Benson & Son Electric Inc. | #319954 | On file | 1976 |
| Korbes Electric | #388678 | On file | 1980 |
| A And L Electric Company | #395735 | On file | 1980 |
| Dannels Electric Inc. | #480106 | On file | 1985 |
| Randy Thornton Inc. DBA Thornton Electric | #480158 | On file | 1985 |
San Mateo County electrical licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 514 active C-10 electrical licenses in San Mateo County, 61 of them registered in San Mateo. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median San Mateo license has been held 21 years, and the longest-standing one dates to 1975. 29 of San Mateo's 61 licenses (47.5%) 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: 511 of the county's 514 licenses carry the same $25,000 bond California sets by statute. 41 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 San Mateo: common questions
How many licensed electricians are there in San Mateo?
61 active C-10 electrical licenses are registered in San Mateo, out of 514 across San Mateo County. 61 San Mateo-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. 61 active C-10 electrical licenses are registered in San Mateo and 514 across San Mateo County, the longest-standing issued in 1975. 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 29 of San Mateo's 61 currently carry. 41 San Mateo County licenses expire within 90 days.