Best Licensed Concrete Contractors in Monrovia, CA
8 concrete companies registered in Monrovia hold current CSLB licenses, verified against official records as of August 17, 2026. All 8 are listed below, ordered by years licensed.
- 778 active C-8 concrete licenses in Los Angeles County; 10 registered in Monrovia
- California requires workers' compensation cover for C-8 licensees: 10 of Monrovia's 10 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in Monrovia: 22 years
- Longest Monrovia licensure: since 1966
- 63 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1966
- Phone
- (800) 660-8062
- Verified
- August 17, 2026
- Licensed since
- 1981
- Phone
- (626) 303-4043
- Verified
- August 17, 2026
- Licensed since
- 1987
- Phone
- (626) 253-3678
- Verified
- August 17, 2026
- Licensed since
- 1988
- Phone
- (626) 303-7972
- Verified
- August 17, 2026
- Licensed since
- 2003
- Phone
- (626) 348-7391
- Verified
- August 17, 2026
- Licensed since
- 2015
- Phone
- (408) 813-6666
- Verified
- August 17, 2026
- Licensed since
- 2015
- Phone
- (626) 357-3500
- Verified
- August 17, 2026
- Licensed since
- 2018
- Phone
- (626) 790-8060
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Dedicated Floor Systems | #243404 | On file | 1966 |
| Garden View Inc. | #413300 | On file | 1981 |
| G C Masonry | #510464 | On file | 1987 |
| Rays Landscape Co Inc. | #547313 | On file | 1988 |
| The Unicon Group Inc. | #827971 | On file | 2003 |
| Sound-crete Fireproofing, Inc.. | #1003054 | On file | 2015 |
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, 10 of them registered in Monrovia. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Monrovia license has been held 22 years, and the longest-standing one dates to 1966. 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: 10 of Monrovia's 10 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 Monrovia: common questions
How many licensed concrete contractors are there in Monrovia?
10 active C-8 concrete licenses are registered in Monrovia, out of 778 across Los Angeles County. 8 Monrovia-registered companies passed our license verification, and all 8 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. 10 active C-8 concrete licenses are registered in Monrovia and 778 across Los Angeles County, the longest-standing issued in 1966. 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 10 of Monrovia's 10 currently carry. 63 Los Angeles County licenses expire within 90 days.