Licensed General Building (B) contractors in Castro Valley, CA

The California Contractors State License Board (CSLB) lists 228 General Building (B) contractors in Castro Valley, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

Showing 121–180 of 228 contractors

1. Georgios Lampropoulos

   Castro Valley, CA · CSLB #992652 · as of June 27, 2026
   Active · clear
2. Langon Building & Developing

   Castro Valley, CA · CSLB #765364 · as of June 27, 2026
   Active · clear
3. John J Langon JR

   Castro Valley, CA · CSLB #283657 · as of June 27, 2026
   Active · clear
4. Joseph Langon

   Castro Valley, CA · CSLB #757428 · as of June 27, 2026
   Active · clear
5. Aaron Lerner General Contractor

   Castro Valley, CA · CSLB #927537 · as of June 27, 2026
   Active · clear
6. Levi Construction CO

   Castro Valley, CA · CSLB #1125930 · as of June 27, 2026
   Active · clear
7. Lico's Contracting

   Castro Valley, CA · CSLB #1021433 · as of June 27, 2026
   Active · clear
8. LL Construction

   Castro Valley, CA · CSLB #1087278 · as of June 27, 2026
   Active · clear
9. Loreto Construction Services

   Castro Valley, CA · CSLB #866213 · as of June 27, 2026
   Active · clear
10. Lu's Construction

    Castro Valley, CA · CSLB #871211 · as of June 27, 2026
    Active · clear
11. Lyons Construction

    Castro Valley, CA · CSLB #761972 · as of June 27, 2026
    Active · clear
12. M A Services General Contracting

    Castro Valley, CA · CSLB #759101 · as of June 27, 2026
    Active · clear
13. Matthies Construction

    Castro Valley, CA · CSLB #1102199 · as of June 27, 2026
    Active · clear
14. M B Development

    Castro Valley, CA · CSLB #778837 · as of June 27, 2026
    Active · clear
15. M B R

    Castro Valley, CA · CSLB #457961 · as of June 27, 2026
    Active · clear
16. John MC Donagh Builders And Energy Systems

    Castro Valley, CA · CSLB #422946 · as of June 27, 2026
    Active · clear
17. M C R Construction

    Castro Valley, CA · CSLB #729668 · as of June 27, 2026
    Active · clear
18. Mena Construction

    Castro Valley, CA · CSLB #1092706 · as of June 27, 2026
    Active · clear
19. Mario Mendoza

    Castro Valley, CA · CSLB #888992 · as of June 27, 2026
    Active · clear
20. Merkouris Construction INC

    Castro Valley, CA · CSLB #464532 · as of June 27, 2026
    Active · clear
21. Mikeco Construction Company

    Castro Valley, CA · CSLB #1020142 · as of June 27, 2026
    Active · clear
22. MNM Builders INC

    Castro Valley, CA · CSLB #1029642 · as of June 27, 2026
    Active · clear
23. Monarch Builders LLC

    Castro Valley, CA · CSLB #1136648 · as of June 27, 2026
    Active · clear
24. Morningside Builders

    Castro Valley, CA · CSLB #864558 · as of June 27, 2026
    Active · clear
25. B A Morrison

    Castro Valley, CA · CSLB #603913 · as of June 27, 2026
    Active · clear
26. Steven A Morsilli

    Castro Valley, CA · CSLB #604965 · as of June 27, 2026
    Active · clear
27. M W C & Associates

    Castro Valley, CA · CSLB #398440 · as of June 27, 2026
    Active · clear
28. New Generation Construction & Remodeling INC

    Castro Valley, CA · CSLB #1000571 · as of June 27, 2026
    Active · clear
29. Ralph J Nice

    Castro Valley, CA · CSLB #549951 · as of June 27, 2026
    Active · clear
30. Northup Construction INC

    Castro Valley, CA · CSLB #265315 · as of June 27, 2026
    Active · clear
31. Ocean Remodel INC

    Castro Valley, CA · CSLB #1120751 · as of June 27, 2026
    Active · clear
32. Olsen Consulting

    Castro Valley, CA · CSLB #1128663 · as of June 27, 2026
    Active · clear
33. Cliff Olson Construction

    Castro Valley, CA · CSLB #529277 · as of June 27, 2026
    Active · clear
34. Jack D Olson Design & Construction CO

    Castro Valley, CA · CSLB #374770 · as of June 27, 2026
    Active · clear
35. Osman Construction INC

    Castro Valley, CA · CSLB #1149250 · as of June 27, 2026
    Active · clear
36. Our Handy Helper

    Castro Valley, CA · CSLB #1145235 · as of June 27, 2026
    Active · clear
37. Pacific Bay Remodeling

    Castro Valley, CA · CSLB #1076321 · as of June 27, 2026
    Active · clear
38. Paragon Electric

    Castro Valley, CA · CSLB #261291 · as of June 27, 2026
    Active · clear
39. Payne's General Contracting

    Castro Valley, CA · CSLB #800246 · as of June 27, 2026
    Active · clear
40. Perfect Home Builders INC

    Castro Valley, CA · CSLB #1058032 · as of June 27, 2026
    Active · clear
41. Peters Construction

    Castro Valley, CA · CSLB #993709 · as of June 27, 2026
    Active · clear
42. Ryan Phelps Construction

    Castro Valley, CA · CSLB #829520 · as of June 27, 2026
    Active · clear
43. Pinon Custom Construction INC

    Castro Valley, CA · CSLB #1048101 · as of June 27, 2026
    Active · clear
44. Preferred Quality Home Improvements

    Castro Valley, CA · CSLB #964396 · as of June 27, 2026
    Active · clear
45. Premium Builders INC

    Castro Valley, CA · CSLB #767321 · as of June 27, 2026
    Active · clear
46. Property Pros Construction INC

    Castro Valley, CA · CSLB #889146 · as of June 27, 2026
    Active · clear
47. Pro-tech Maintenance & Repair

    Castro Valley, CA · CSLB #596933 · as of June 27, 2026
    Active · clear
48. Punjab Construction

    Castro Valley, CA · CSLB #689179 · as of June 27, 2026
    Active · clear
49. Quixotic Construction

    Castro Valley, CA · CSLB #940742 · as of June 27, 2026
    Active · clear
50. R A Custom Siding

    Castro Valley, CA · CSLB #1007444 · as of June 27, 2026
    Active · clear
51. Pete Radovich Construction

    Castro Valley, CA · CSLB #449887 · as of June 27, 2026
    Active · clear
52. Rayco Construction Services INC

    Castro Valley, CA · CSLB #809022 · as of June 27, 2026
    Active · clear
53. Rayco Painting & Construction INC

    Castro Valley, CA · CSLB #1029239 · as of June 27, 2026
    Active · clear
54. Red Door Restoration INC

    Castro Valley, CA · CSLB #916469 · as of June 27, 2026
    Active · clear
55. Reed's Craftmanship

    Castro Valley, CA · CSLB #394444 · as of June 27, 2026
    Active · clear
56. Reis Construction Company LLC

    Castro Valley, CA · CSLB #1144162 · as of June 27, 2026
    Active · clear
57. Renovations Plus

    Castro Valley, CA · CSLB #857337 · as of June 27, 2026
    Active · clear
58. Ric Kitchen + Bath Showroom

    Castro Valley, CA · CSLB #602812 · as of June 27, 2026
    Active · clear
59. R J H Construction

    Castro Valley, CA · CSLB #517983 · as of June 27, 2026
    Active · clear
60. Ken A Rose

    Castro Valley, CA · CSLB #423722 · as of June 27, 2026
    Active · clear

See all General Building (B) 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.