Licensed General Building (B) contractors in Diamond Bar, CA

The California Contractors State License Board (CSLB) lists 165 General Building (B) contractors in Diamond Bar, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of August 11, 2026.

Showing 1–60 of 165 contractors

1. 5 Zero INC

   Diamond Bar, CA · CSLB #1105104 · as of August 11, 2026
   Active · clear
2. Joe Cledera Ablay

   Diamond Bar, CA · CSLB #629389 · as of August 11, 2026
   Active · clear
3. Acemd Corporation

   Diamond Bar, CA · CSLB #1111963 · as of August 11, 2026
   Active · clear
4. Ace Plumbing CO

   Diamond Bar, CA · CSLB #785570 · as of August 11, 2026
   Active · clear
5. Alliant Construction Services INC

   Diamond Bar, CA · CSLB #1061441 · as of August 11, 2026
   Active · clear
6. Alpha Construction Services INC

   Diamond Bar, CA · CSLB #1015331 · as of August 11, 2026
   Active · clear
7. American Resources Corporation

   Diamond Bar, CA · CSLB #895201 · as of August 11, 2026
   Active · clear
8. Apex Construction Builder INC

   Diamond Bar, CA · CSLB #1074739 · as of August 11, 2026
   Active · clear
9. Apt Construction INC

   Diamond Bar, CA · CSLB #1149695 · as of August 11, 2026
   Active · clear
10. Arkius INC

    Diamond Bar, CA · CSLB #673454 · as of August 11, 2026
    Active · clear
11. Jay Arora

    Diamond Bar, CA · CSLB #512179 · as of August 11, 2026
    Active · clear
12. B7 Builders

    Diamond Bar, CA · CSLB #1065231 · as of August 11, 2026
    Active · clear
13. Big Elephant Construction INC

    Diamond Bar, CA · CSLB #1031703 · as of August 11, 2026
    Active · clear
14. Big Mango Renovation INC

    Diamond Bar, CA · CSLB #1121648 · as of August 11, 2026
    Active · clear
15. Blue Star Contractor

    Diamond Bar, CA · CSLB #1120031 · as of August 11, 2026
    Active · clear
16. Cabinets 4 You LLC

    Diamond Bar, CA · CSLB #1112243 · as of August 11, 2026
    Active · clear
17. Carve Modular Corporation

    Diamond Bar, CA · CSLB #1154699 · as of August 11, 2026
    Active · clear
18. Castaneda Construction

    Diamond Bar, CA · CSLB #932830 · as of August 11, 2026
    Active · clear
19. Centaline Construction INC

    Diamond Bar, CA · CSLB #1145427 · as of August 11, 2026
    Active · clear
20. CFP Construction INC

    Diamond Bar, CA · CSLB #700920 · as of August 11, 2026
    Active · clear
21. Ichien Chen

    Diamond Bar, CA · CSLB #1080792 · as of August 11, 2026
    Active · clear
22. Ming Chu Chen Chien

    Diamond Bar, CA · CSLB #820540 · as of August 11, 2026
    Active · clear
23. Cmpg Project Management

    Diamond Bar, CA · CSLB #953355 · as of August 11, 2026
    Active · clear
24. Consma INC

    Diamond Bar, CA · CSLB #951561 · as of August 11, 2026
    Active · clear
25. Richard L Baugh DBA Cornerstone Construction CO

    Diamond Bar, CA · CSLB #427183 · as of August 11, 2026
    Active · clear
26. C - Thirty - Six INC

    Diamond Bar, CA · CSLB #739644 · as of August 11, 2026
    Active · clear
27. D A S Builder INC

    Diamond Bar, CA · CSLB #1044031 · as of August 11, 2026
    Active · clear
28. Datang Building Service INC

    Diamond Bar, CA · CSLB #1103658 · as of August 11, 2026
    Active · clear
29. Dayone Construction

    Diamond Bar, CA · CSLB #1157614 · as of August 11, 2026
    Active · clear
30. Dcloud Homes

    Diamond Bar, CA · CSLB #1106436 · as of August 11, 2026
    Active · clear
31. D D Y Improvement Corp

    Diamond Bar, CA · CSLB #925637 · as of August 11, 2026
    Active · clear
32. Donglianglu

    Diamond Bar, CA · CSLB #1145119 · as of August 11, 2026
    Active · clear
33. Dongqiang Lu

    Diamond Bar, CA · CSLB #1139854 · as of August 11, 2026
    Active · clear
34. Dreamer Construction And Development

    Diamond Bar, CA · CSLB #1125664 · as of August 11, 2026
    Active · clear
35. Dream Space Construction

    Diamond Bar, CA · CSLB #1071725 · as of August 11, 2026
    Active · clear
36. D R O - West Construction

    Diamond Bar, CA · CSLB #754069 · as of August 11, 2026
    Active · clear
37. Duke Builders Corp

    Diamond Bar, CA · CSLB #635180 · as of August 11, 2026
    Active · clear
38. Dyconn INC

    Diamond Bar, CA · CSLB #1093822 · as of August 11, 2026
    Active · clear
39. DZ Prime Construction

    Diamond Bar, CA · CSLB #1129072 · as of August 11, 2026
    Active · clear
40. Ecp Construction

    Diamond Bar, CA · CSLB #1150062 · as of August 11, 2026
    Active · clear
41. Edesh Enterprise INC DBA Edesh Construction

    Diamond Bar, CA · CSLB #1020843 · as of August 11, 2026
    Active · clear
42. Evercraft Construction INC

    Diamond Bar, CA · CSLB #1122597 · as of August 11, 2026
    Active · clear
43. Freddie Vega

    Diamond Bar, CA · CSLB #1138185 · as of August 11, 2026
    Active · clear
44. F S Construction

    Diamond Bar, CA · CSLB #928966 · as of August 11, 2026
    Active · clear
45. Gary & Son Construction

    Diamond Bar, CA · CSLB #1138649 · as of August 11, 2026
    Active · clear
46. Giant Palms Construction INC

    Diamond Bar, CA · CSLB #1072035 · as of August 11, 2026
    Active · clear
47. G L Construction Group INC

    Diamond Bar, CA · CSLB #994049 · as of August 11, 2026
    Active · clear
48. Good Tidings Construction INC

    Diamond Bar, CA · CSLB #577154 · as of August 11, 2026
    Active · clear
49. H4 Investment INC

    Diamond Bar, CA · CSLB #950924 · as of August 11, 2026
    Active · clear
50. Todd Michael Halstead

    Diamond Bar, CA · CSLB #685211 · as of August 11, 2026
    Active · clear
51. Roger Henry

    Diamond Bar, CA · CSLB #980170 · as of August 11, 2026
    Active · clear
52. HJR Contracting INC

    Diamond Bar, CA · CSLB #1041548 · as of August 11, 2026
    Active · clear
53. Hoffice Beautiful INC

    Diamond Bar, CA · CSLB #965248 · as of August 11, 2026
    Active · clear
54. Home Builders Incorporated

    Diamond Bar, CA · CSLB #1047096 · as of August 11, 2026
    Active · clear
55. Hong Construction

    Diamond Bar, CA · CSLB #1142230 · as of August 11, 2026
    Active · clear
56. Hong Ding Construction INC

    Diamond Bar, CA · CSLB #1038313 · as of August 11, 2026
    Active · clear
57. Huamei Construction INC

    Diamond Bar, CA · CSLB #1051093 · as of August 11, 2026
    Active · clear
58. Jamie Jinzuo Huang

    Diamond Bar, CA · CSLB #1055726 · as of August 11, 2026
    Active · clear
59. Peter Yiping Hu

    Diamond Bar, CA · CSLB #1053475 · as of August 11, 2026
    Active · clear
60. Isanvo Construction INC

    Diamond Bar, CA · CSLB #1146026 · as of August 11, 2026
    Active · clear

See all General Building (B) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of August 11, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.