Licensed General Engineering (A) contractors in Castro Valley, CA

The California Contractors State License Board (CSLB) lists 17 General Engineering (A) contractors in Castro Valley, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

17 contractors

1. Alameda Engineering

   Castro Valley, CA · CSLB #562641 · as of June 27, 2026
   Active · clear
2. Buchmann INC

   Castro Valley, CA · CSLB #1004484 · as of June 27, 2026
   Active · clear
3. Drainage Repair Company

   Castro Valley, CA · CSLB #1139764 · as of June 27, 2026
   Active · clear
4. ML Construction

   Castro Valley, CA · CSLB #1089551 · as of June 27, 2026
   Active · clear
5. Owen

   Castro Valley, CA · CSLB #395410 · as of June 27, 2026
   Active · clear
6. Steven L Phillips Construction INC DBA Phillips Construction

   Castro Valley, CA · CSLB #442048 · as of June 27, 2026
   Active · clear
7. Picon F R P INC

   Castro Valley, CA · CSLB #952283 · as of June 27, 2026
   Active · clear
8. Seal Well INC DBA Renaissance Stone Care & Waterproofing

   Castro Valley, CA · CSLB #1096214 · as of June 27, 2026
   Active · clear
9. S & C Enterprises

   Castro Valley, CA · CSLB #769424 · as of June 27, 2026
   Active · clear
10. Splash Of Class Painting And Construction

    Castro Valley, CA · CSLB #1063848 · as of June 27, 2026
    Active · clear
11. Streamline Plumbing & Drain CO

    Castro Valley, CA · CSLB #672250 · as of June 27, 2026
    Active · clear
12. Tri - Valley Engineering

    Castro Valley, CA · CSLB #1107893 · as of June 27, 2026
    Active · clear
13. Various Energy

    Castro Valley, CA · CSLB #1145723 · as of June 27, 2026
    Active · clear
14. Aaa Plumbing & Remodeling INC

    Castro Valley, CA · CSLB #1052769 · as of June 27, 2026
    Suspended · bond
15. DL Design Build LLC

    Castro Valley, CA · CSLB #1135206 · as of June 27, 2026
    Suspended · bond
16. A-1 Contracting LLC

    Castro Valley, CA · CSLB #1154993 · as of June 27, 2026
    Suspended
17. A-1 Construction General Engineering INC

    Castro Valley, CA · CSLB #944217 · as of June 27, 2026
    Suspended

See all General Engineering (A) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.