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

The California Contractors State License Board (CSLB) lists 696 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 October 6, 2026.

Showing 301–360 of 696 contractors

1. Hayes Garage Doors & Insulation

   Visalia, CA · CSLB #766258 · as of October 6, 2026
   Active · clear
2. HC Insulation & Acoustical INC

   Baldwin Park, CA · CSLB #1111774 · as of October 6, 2026
   Active · clear
3. Highpoint Acoustic Specialties INC.

   Santa Rosa, CA · CSLB #1036311 · as of October 6, 2026
   Active · clear
4. Hinds Bros Company INC

   Healdsburg, CA · CSLB #470334 · as of October 6, 2026
   Active · clear
5. H I S

   Lincoln, CA · CSLB #787335 · as of October 6, 2026
   Active · clear
6. HM Insulation INC

   Watsonville, CA · CSLB #1093732 · as of October 6, 2026
   Active · clear
7. HM Specialty Insulation

   Fresno, CA · CSLB #1018702 · as of October 6, 2026
   Active · clear
8. Hofstee Drywall

   Alpine, CA · CSLB #766538 · as of October 6, 2026
   Active · clear
9. Hollister Roofing INC

   Hollister, CA · CSLB #588775 · as of October 6, 2026
   Active · clear
10. Home Care Solution Services INC DBA Home Care Insulation

    Lynwood, CA · CSLB #1148441 · as of October 6, 2026
    Active · clear
11. Home Comfort USA Heating & Cooling

    Anaheim, CA · CSLB #1106323 · as of October 6, 2026
    Active · clear
12. Honeycutt Tear Off INC

    Anaheim, CA · CSLB #313641 · as of October 6, 2026
    Active · clear
13. Hoyt Roofs INC

    Anaheim, CA · CSLB #606111 · as of October 6, 2026
    Active · clear
14. Humboldt Insulation

    Eureka, CA · CSLB #1070669 · as of October 6, 2026
    Active · clear
15. Hunter's Insulation INC

    Granada Hills, CA · CSLB #1059930 · as of October 6, 2026
    Active · clear
16. HVAC Guru

    San Jose, CA · CSLB #1031326 · as of October 6, 2026
    Active · clear
17. HVAC Oren Services LLC

    Oakland, CA · CSLB #1048662 · as of October 6, 2026
    Active · clear
18. Icon Phoenix Insulation

    Porterville, CA · CSLB #1159316 · as of October 6, 2026
    Active · clear
19. Ideal Acoustics

    Midway City, CA · CSLB #866391 · as of October 6, 2026
    Active · clear
20. Ideal Attic Insulation INC

    San Jose, CA · CSLB #1095944 · as of October 6, 2026
    Active · clear
21. Imperial Insulation LLC

    San Leandro, CA · CSLB #1144362 · as of October 6, 2026
    Active · clear
22. Incon Insulation Contractors

    Moreno Valley, CA · CSLB #720349 · as of October 6, 2026
    Active · clear
23. Independence Drywall & Taping

    Truckee, CA · CSLB #447124 · as of October 6, 2026
    Active · clear
24. Industrial Construction & Engineering Company

    St Peters, CA · CSLB #838559 · as of October 6, 2026
    Active · clear
25. Infinity Insulation

    Modesto, CA · CSLB #1074844 · as of October 6, 2026
    Active · clear
26. Infinity Insulation And Acoustical Contractors

    Las Vegas, CA · CSLB #1158408 · as of October 6, 2026
    Active · clear
27. Inland Empire Roofing CO LLC

    Grand Terrace, CA · CSLB #552188 · as of October 6, 2026
    Active · clear
28. Innovated Acoustics Corp

    Riverside, CA · CSLB #1058140 · as of October 6, 2026
    Active · clear
29. Insulate SB INC

    Santa Barbara, CA · CSLB #963692 · as of October 6, 2026
    Active · clear
30. Insulation Commandos Of Temecula Valley & North San Diego

    Murrieta, CA · CSLB #1128145 · as of October 6, 2026
    Active · clear
31. Insulation Contractors

    Winnetka, CA · CSLB #1144403 · as of October 6, 2026
    Active · clear
32. Insulation Ninjas LLC

    Redding, CA · CSLB #1152038 · as of October 6, 2026
    Active · clear
33. Insulation Services Of California LLC

    Sylmar, CA · CSLB #1124372 · as of October 6, 2026
    Active · clear
34. Insulation Solutions

    Rocklin, CA · CSLB #920558 · as of October 6, 2026
    Active · clear
35. Insulation Solutions

    Santa Rosa, CA · CSLB #1063250 · as of October 6, 2026
    Active · clear
36. Insulation Specialist

    Kelsey, CA · CSLB #1061824 · as of October 6, 2026
    Active · clear
37. Insulation Specialties INC

    Pleasanton, CA · CSLB #464164 · as of October 6, 2026
    Active · clear
38. M One Contracting INC DBA Insulation Specialty Contractors

    Fresno, CA · CSLB #1023520 · as of October 6, 2026
    Active · clear
39. Insulation Systems

    Covina, CA · CSLB #772605 · as of October 6, 2026
    Active · clear
40. Insul - Flow INC

    Fresno, CA · CSLB #819642 · as of October 6, 2026
    Active · clear
41. Insul-light Insulation Company INC

    Perris, CA · CSLB #608073 · as of October 6, 2026
    Active · clear
42. Insultech Contracting LLC

    Livermore, CA · CSLB #1111192 · as of October 6, 2026
    Active · clear
43. Insul - Techs INC

    Concord, CA · CSLB #1011102 · as of October 6, 2026
    Active · clear
44. Insupro Insulation

    Riverbank, CA · CSLB #1133532 · as of October 6, 2026
    Active · clear
45. Integrity Specialty Contracting LLC

    Alpine, CA · CSLB #1109416 · as of October 6, 2026
    Active · clear
46. Intex Drywall INC

    Irvine, CA · CSLB #851471 · as of October 6, 2026
    Active · clear
47. Ireland Interior Systems INC

    Novato, CA · CSLB #315164 · as of October 6, 2026
    Active · clear
48. Isc

    Carlsbad, CA · CSLB #1039696 · as of October 6, 2026
    Active · clear
49. Jack's Overhead Doors And Insulation INC

    Gilroy, CA · CSLB #437240 · as of October 6, 2026
    Active · clear
50. J And M Interior Specialties INC

    El Cajon, CA · CSLB #572769 · as of October 6, 2026
    Active · clear
51. J B L Acoustics

    Vallejo, CA · CSLB #979514 · as of October 6, 2026
    Active · clear
52. J C Insulation

    Escondido, CA · CSLB #1027215 · as of October 6, 2026
    Active · clear
53. JC Insulation

    Salinas, CA · CSLB #1028007 · as of October 6, 2026
    Active · clear
54. Jda Insulation

    Atwater, CA · CSLB #1112880 · as of October 6, 2026
    Active · clear
55. J D Firestop Pros INC

    Tracy, CA · CSLB #891905 · as of October 6, 2026
    Active · clear
56. J D S Acoustics

    Livermore, CA · CSLB #924525 · as of October 6, 2026
    Active · clear
57. Jerico Firestopping

    San Diego, CA · CSLB #1089078 · as of October 6, 2026
    Active · clear
58. J G Acoustics

    Woodland, CA · CSLB #832107 · as of October 6, 2026
    Active · clear
59. J & G Insulation INC

    Chatsworth, CA · CSLB #1162050 · as of October 6, 2026
    Active · clear
60. J - J A Y S Installation

    Apple Valley, CA · CSLB #569891 · as of October 6, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.