Licensed Glazing (C-17) contractors in Castro Valley, CA

The California Contractors State License Board (CSLB) lists 4 Glazing (C-17) contractors in Castro Valley, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of October 7, 2026.

4 contractors

1. MT Zion Construction LLC DBA MT Zion Glass

   Castro Valley, CA · CSLB #1103681 · as of October 7, 2026
   Active · clear
2. Oscar's Glass

   Castro Valley, CA · CSLB #1120822 · as of October 7, 2026
   Active · clear
3. Tanev Windows & Doors

   Castro Valley, CA · CSLB #923777 · as of October 7, 2026
   Active · clear
4. Zeek's Discount Glass INC

   Castro Valley, CA · CSLB #1086133 · as of October 7, 2026
   Active · clear

See all Glazing (C-17) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of October 7, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.