Licensed Masonry (C-29) contractors in Castro Valley, CA

The California Contractors State License Board (CSLB) lists 4 Masonry (C-29) contractors in Castro Valley, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of October 6, 2026.

4 contractors

1. De Koven Masonry

   Castro Valley, CA · CSLB #661388 · as of October 6, 2026
   Active · clear
2. E & S Masonry Corporation

   Castro Valley, CA · CSLB #562066 · as of October 6, 2026
   Active · clear
3. Mark Stanchina Masonry

   Castro Valley, CA · CSLB #847102 · as of October 6, 2026
   Active · clear
4. D Montgomery Masonry

   Castro Valley, CA · CSLB #863799 · as of October 6, 2026
   Active · clear

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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.