Best Licensed Concrete Contractors in Claremont, CA
4 concrete companies registered in Claremont hold current CSLB licenses, verified against official records as of August 17, 2026. All 4 are listed below, ordered by years licensed.
- 778 active C-8 concrete licenses in Los Angeles County; 5 registered in Claremont
- California requires workers' compensation cover for C-8 licensees: 5 of Claremont's 5 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in Claremont: 16 years
- Longest Claremont licensure: since 1984
- 63 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1984
- Phone
- (818) 370-0534
- Verified
- August 17, 2026
- Licensed since
- 2007
- Phone
- (626) 945-1886
- Verified
- August 17, 2026
- Licensed since
- 2010
- Phone
- (626) 339-7000
- Verified
- August 17, 2026
- Licensed since
- 2018
- Phone
- (951) 332-1680
Compare the top 4 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| J S R & Associates Inc. | #454094 | On file | 1984 |
| Calscape Design + Maintenance | #899122 | On file | 2007 |
| Her-con Construction Services Inc. | #945955 | On file | 2010 |
| Rjh Management | #1038083 | On file | 2018 |
Los Angeles County concrete licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 778 active C-8 concrete licenses in Los Angeles County, 5 of them registered in Claremont. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Claremont license has been held 16 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 Claremont's 5 licenses (100.0%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 776 of the county's 778 licenses carry the same $25,000 bond California sets by statute. 63 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 Claremont: common questions
How many licensed concrete contractors are there in Claremont?
5 active C-8 concrete licenses are registered in Claremont, out of 778 across Los Angeles County. 4 Claremont-registered companies passed our license verification, and all 4 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. 5 active C-8 concrete licenses are registered in Claremont and 778 across Los Angeles 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 Claremont's 5 currently carry. 63 Los Angeles County licenses expire within 90 days.