Best Licensed Concrete Contractors in Sonora, CA
6 concrete companies registered in Sonora hold current CSLB licenses, verified against official records as of August 17, 2026. All 6 are listed below, ordered by years licensed.
- 7 active C-8 concrete licenses in Tuolumne County; 6 registered in Sonora
- California requires workers' compensation cover for C-8 licensees: 5 of Sonora's 6 licenses (83.3%) carry a current policy with CSLB
- Median time licensed in Sonora: 22 years
- Longest Sonora licensure: since 1984
- 2 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1984
- Phone
- (209) 768-4914
- Verified
- August 17, 2026
- Licensed since
- 1990
- Phone
- (209) 586-6447
- Verified
- August 17, 2026
- Licensed since
- 2000
- Phone
- (209) 588-9073
- Verified
- August 17, 2026
- Licensed since
- 2003
- Phone
- (209) 604-9334
- Verified
- August 17, 2026
- Licensed since
- 2004
- Phone
- (209) 533-8962
6.G Seven
- Verified
- August 17, 2026
- Licensed since
- 2011
- Phone
- (209) 532-2277
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Mike Mc Connell Construction | #459611 | On file | 1984 |
| Concrete Innovations Inc. | #606674 | On file | 1990 |
| K & D London Concrete Inc. | #777241 | On file | 2000 |
| Rivera Construction | #823218 | On file | 2003 |
| Plum Construction Inc. | #845995 | Exempt or none on file | 2004 |
| G Seven | #962744 | On file | 2011 |
Tuolumne County concrete licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 7 active C-8 concrete licenses in Tuolumne County, 6 of them registered in Sonora. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Sonora license has been held 22 years, and the longest-standing one dates to 1984. California law requires workers' compensation cover for C-8 licensees, so it is a legal baseline rather than a way to tell two contractors apart: 5 of Sonora's 6 licenses (83.3%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 7 of the county's 7 licenses carry the same $25,000 bond California sets by statute. 2 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.
Concrete Contractors in Sonora: common questions
How many licensed concrete contractors are there in Sonora?
6 active C-8 concrete licenses are registered in Sonora, out of 7 across Tuolumne County. 6 Sonora-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 concrete contractors?
Yes. California licenses contractors by classification, and C-8 is the CSLB classification that authorises this work. 6 active C-8 concrete licenses are registered in Sonora and 7 across Tuolumne County, the longest-standing issued in 1984. Only CLEAR, unexpired licenses appear here.
How do I check a concrete 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 California requires of C-8 licensees and 5 of Sonora's 6 currently carry. 2 Tuolumne County licenses expire within 90 days.