Licensed Insulation & Acoustical (C-2) contractors in California

The California Contractors State License Board (CSLB) lists 691 California contractors classified C-2 (Insulation & Acoustical (C-2)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

Showing 301–360 of 691 contractors

1. Hamilton Ceiling Systems INC

   San Bernardino, CA · CSLB #787546 · as of June 27, 2026
   Active · clear
2. Hammond Drywall Construction

   Diamond Bar, CA · CSLB #956694 · as of June 27, 2026
   Active · clear
3. Hanes Floor Incorporated

   Redding, CA · CSLB #232505 · as of June 27, 2026
   Active · clear
4. J W Hanson Heating And Air

   Santa Rosa, CA · CSLB #858773 · as of June 27, 2026
   Active · clear
5. Hasco Heating Airconditioning Service Company INC

   Riverside, CA · CSLB #519360 · as of June 27, 2026
   Active · clear
6. Hayes Garage Doors & Insulation

   Visalia, CA · CSLB #766258 · as of June 27, 2026
   Active · clear
7. HC Insulation & Acoustical INC

   Baldwin Park, CA · CSLB #1111774 · as of June 27, 2026
   Active · clear
8. Hess Roofing INC

   El Cajon, CA · CSLB #423678 · as of June 27, 2026
   Active · clear
9. Highpoint Acoustic Specialties INC.

   Santa Rosa, CA · CSLB #1036311 · as of June 27, 2026
   Active · clear
10. Hinds Bros Company INC

    Healdsburg, CA · CSLB #470334 · as of June 27, 2026
    Active · clear
11. H I S

    Lincoln, CA · CSLB #787335 · as of June 27, 2026
    Active · clear
12. HM Insulation INC

    Watsonville, CA · CSLB #1093732 · as of June 27, 2026
    Active · clear
13. HM Specialty Insulation

    Fresno, CA · CSLB #1018702 · as of June 27, 2026
    Active · clear
14. Hofstee Drywall

    Alpine, CA · CSLB #766538 · as of June 27, 2026
    Active · clear
15. Hollister Roofing INC

    Hollister, CA · CSLB #588775 · as of June 27, 2026
    Active · clear
16. Home Care Solution Services INC DBA Home Care Insulation

    Lynwood, CA · CSLB #1148441 · as of June 27, 2026
    Active · clear
17. Home Comfort USA Heating & Cooling

    Anaheim, CA · CSLB #1106323 · as of June 27, 2026
    Active · clear
18. Honeycutt Tear Off INC

    Anaheim, CA · CSLB #313641 · as of June 27, 2026
    Active · clear
19. Hoyt Roofs INC

    Anaheim, CA · CSLB #606111 · as of June 27, 2026
    Active · clear
20. Hunter's Insulation INC

    Granada Hills, CA · CSLB #1059930 · as of June 27, 2026
    Active · clear
21. HVAC Oren Services LLC

    Oakland, CA · CSLB #1048662 · as of June 27, 2026
    Active · clear
22. Ideal Acoustics

    Midway City, CA · CSLB #866391 · as of June 27, 2026
    Active · clear
23. Ideal Attic Insulation INC

    San Jose, CA · CSLB #1095944 · as of June 27, 2026
    Active · clear
24. Imperial Insulation LLC

    San Leandro, CA · CSLB #1144362 · as of June 27, 2026
    Active · clear
25. Incon Insulation Contractors

    Moreno Valley, CA · CSLB #720349 · as of June 27, 2026
    Active · clear
26. Independence Drywall & Taping

    Truckee, CA · CSLB #447124 · as of June 27, 2026
    Active · clear
27. Industrial Construction & Engineering Company

    St Peters, CA · CSLB #838559 · as of June 27, 2026
    Active · clear
28. Infinity Insulation

    Modesto, CA · CSLB #1074844 · as of June 27, 2026
    Active · clear
29. Inland Empire Roofing CO LLC

    Grand Terrace, CA · CSLB #552188 · as of June 27, 2026
    Active · clear
30. Innovated Acoustics Corp

    Riverside, CA · CSLB #1058140 · as of June 27, 2026
    Active · clear
31. Insulate SB INC

    Santa Barbara, CA · CSLB #963692 · as of June 27, 2026
    Active · clear
32. Insulation Commandos Of Temecula Valley & North San Diego

    Murrieta, CA · CSLB #1128145 · as of June 27, 2026
    Active · clear
33. Insulation Contractors

    Winnetka, CA · CSLB #1144403 · as of June 27, 2026
    Active · clear
34. Insulation Nation LLC

    Irvine, CA · CSLB #1127373 · as of June 27, 2026
    Active · clear
35. Insulation Ninjas LLC

    Redding, CA · CSLB #1152038 · as of June 27, 2026
    Active · clear
36. Insulation Services Of California LLC

    Sylmar, CA · CSLB #1124372 · as of June 27, 2026
    Active · clear
37. Insulation Solutions

    Rocklin, CA · CSLB #920558 · as of June 27, 2026
    Active · clear
38. Insulation Solutions

    Santa Rosa, CA · CSLB #1063250 · as of June 27, 2026
    Active · clear
39. Insulation Specialist

    Kelsey, CA · CSLB #1061824 · as of June 27, 2026
    Active · clear
40. Insulation Specialties INC

    Pleasanton, CA · CSLB #464164 · as of June 27, 2026
    Active · clear
41. M One Contracting INC DBA Insulation Specialty Contractors

    Fresno, CA · CSLB #1023520 · as of June 27, 2026
    Active · clear
42. Insulation Systems

    Covina, CA · CSLB #772605 · as of June 27, 2026
    Active · clear
43. Insul - Flow INC

    Fresno, CA · CSLB #819642 · as of June 27, 2026
    Active · clear
44. Insul-light Insulation Company INC

    Perris, CA · CSLB #608073 · as of June 27, 2026
    Active · clear
45. Insultech Contracting LLC

    Livermore, CA · CSLB #1111192 · as of June 27, 2026
    Active · clear
46. Insul - Techs INC

    Concord, CA · CSLB #1011102 · as of June 27, 2026
    Active · clear
47. Insupro Insulation

    Riverbank, CA · CSLB #1133532 · as of June 27, 2026
    Active · clear
48. Integrity Specialty Contracting LLC

    Alpine, CA · CSLB #1109416 · as of June 27, 2026
    Active · clear
49. Intex Drywall INC

    Irvine, CA · CSLB #851471 · as of June 27, 2026
    Active · clear
50. Ireland Interior Systems INC

    Novato, CA · CSLB #315164 · as of June 27, 2026
    Active · clear
51. Isc

    Carlsbad, CA · CSLB #1039696 · as of June 27, 2026
    Active · clear
52. Jack's Overhead Doors And Insulation INC

    Gilroy, CA · CSLB #437240 · as of June 27, 2026
    Active · clear
53. J And M Interior Specialties INC

    El Cajon, CA · CSLB #572769 · as of June 27, 2026
    Active · clear
54. J C Insulation

    Escondido, CA · CSLB #1027215 · as of June 27, 2026
    Active · clear
55. Jda Insulation

    Atwater, CA · CSLB #1112880 · as of June 27, 2026
    Active · clear
56. J D Firestop Pros INC

    Tracy, CA · CSLB #891905 · as of June 27, 2026
    Active · clear
57. J D S Acoustics

    Livermore, CA · CSLB #924525 · as of June 27, 2026
    Active · clear
58. Jensen Drywall

    Nevada City, CA · CSLB #997136 · as of June 27, 2026
    Active · clear
59. Jerico Firestopping

    San Diego, CA · CSLB #1089078 · as of June 27, 2026
    Active · clear
60. Jetstream Construction INC

    Las Vegas, CA · CSLB #981401 · as of June 27, 2026
    Active · clear

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.