Licensed Concrete (C-8) contractors in Walnut, CA

The California Contractors State License Board (CSLB) lists 3 Concrete (C-8) contractors in Walnut, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of October 6, 2026.

3 contractors

1. Claypool Frank Concrete Cutting INC

   Walnut, CA · CSLB #938332 · as of October 6, 2026
   Active · clear
2. MC Bobcat Concrete Services INC

   Walnut, CA · CSLB #853899 · as of October 6, 2026
   Active · clear
3. Ziming Concrete

   Walnut, CA · CSLB #1097992 · as of October 6, 2026
   Suspended · workers' comp

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Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.