How many concrete contractors are licensed in California?

California has 5,752 contractors with a C-8 (Concrete) license from the Contractors State License Board. 5,371 (93%) hold active licenses. SiteVetter checks each against SAM.gov, OSHA, DOL, and EPA databases.

What does a C-8 license cover in California?

A California C-8 license covers concrete contractors for foundations, slabs, and structural concrete. Any contractor performing concrete work valued at $500 or more must hold this license. The CSLB issues and regulates all contractor licenses in the state.

What percentage of concrete contractors have federal violations?

7.5% of California concrete contractors (430 out of 5,752) have at least one record in federal databases. These include SAM.gov debarments, DOL wage violations, OSHA safety citations, and EPA environmental violations.

Verify Concrete Contractors (C-8) - Page 25 | CSLB + Federal Check

How to Verify a Concrete Contractor (C-8) in California

California requires all contractors performing concrete work valued at $500+ to hold a valid CSLB C-8 license. Of the 5,752 licensed concrete contractors in the state, 93% currently hold active licenses and 7.5% have at least one federal compliance record.

Manual vetting takes 45+ minutes per contractor and routinely misses violations in databases most people don't know to check. SiteVetter runs CSLB status, SAM.gov debarment, DOL wage violations, OSHA safety citations, and EPA environmental records in seconds—creating a timestamped compliance artifact.

Verification Checklist for Concrete Contractors

Verify the contractor license is active and in good standing
Request proof of insurance and bonding
Get at least 3 written quotes before selecting a contractor
Check federal databases: SAM.gov, OSHA, DOL, and EPA records
Confirm bond: California requires $25,000+ contractor bond (SB 607)

Why Verification Matters for Concrete Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For concrete work specifically, 7.5% of licensed contractors have federal records that a standard CSLB license check wouldn't reveal. SiteVetter's 5-database check catches what a single-source verification misses.

Concrete Contractor Verification - Page 25

About C-8 License

Concrete Contractors

How to Verify a Concrete Contractor (C-8) in California

Verification Checklist for Concrete Contractors

Why Verification Matters for Concrete Work