Best Licensed Concrete Contractors in Martinez, CA
8 concrete companies registered in Martinez hold current CSLB licenses, verified against official records as of August 17, 2026. All 8 are listed below, ordered by years licensed.
- 142 active C-8 concrete licenses in Contra Costa County; 8 registered in Martinez
- California requires workers' compensation cover for C-8 licensees: 8 of Martinez's 8 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in Martinez: 29 years
- Longest Martinez licensure: since 1990
- 14 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1990
- Phone
- (925) 246-0096
- Verified
- August 17, 2026
- Licensed since
- 1991
- Phone
- (925) 229-8900
- Verified
- August 17, 2026
- Licensed since
- 1995
- Phone
- (925) 685-1244
- Verified
- August 17, 2026
- Licensed since
- 1996
- Phone
- (925) 372-8148
- Verified
- August 17, 2026
- Licensed since
- 1997
- Phone
- (510) 368-2273
- Verified
- August 17, 2026
- Licensed since
- 2003
- Phone
- (925) 984-6883
- Verified
- August 17, 2026
- Licensed since
- 2014
- Phone
- (925) 382-7095
- Verified
- August 17, 2026
- Licensed since
- 2019
- Phone
- (510) 949-9202
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Lara's Concrete Inc. | #599673 | On file | 1990 |
| Mckay & Co Construction | #623129 | On file | 1991 |
| Kodiak Construction | #708098 | On file | 1995 |
| Hm Concrete Inc. | #723759 | On file | 1996 |
| Armando Sanchez Construction | #737276 | On file | 1997 |
| A - K Aeration & Landscaping | #823077 | On file | 2003 |
Contra Costa County concrete licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 142 active C-8 concrete licenses in Contra Costa County, 8 of them registered in Martinez. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Martinez license has been held 29 years, and the longest-standing one dates to 1990. 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: 8 of Martinez's 8 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: 142 of the county's 142 licenses carry the same $25,000 bond California sets by statute. 14 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 Martinez: common questions
How many licensed concrete contractors are there in Martinez?
8 active C-8 concrete licenses are registered in Martinez, out of 142 across Contra Costa County. 8 Martinez-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. 8 active C-8 concrete licenses are registered in Martinez and 142 across Contra Costa County, the longest-standing issued in 1990. 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 8 of Martinez's 8 currently carry. 14 Contra Costa County licenses expire within 90 days.