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 241–300 of 691 contractors

1. Empire Insulation Contractors

   Windsor, CA · CSLB #819279 · as of June 27, 2026
   Active · clear
2. Em Quality Insulation Services

   Ducor, CA · CSLB #1063032 · as of June 27, 2026
   Active · clear
3. Energy Guard Insulation

   Lafayette, CA · CSLB #1009348 · as of June 27, 2026
   Active · clear
4. Engel Insulation INC

   Roseville, CA · CSLB #745646 · as of June 27, 2026
   Active · clear
5. Thomas Engel JR

   Roseville, CA · CSLB #743357 · as of June 27, 2026
   Active · clear
6. Enso Building Solutions INC DBA Enso Insulation

   Fullerton, CA · CSLB #1102528 · as of June 27, 2026
   Active · clear
7. Epic Insulation

   Vacaville, CA · CSLB #987822 · as of June 27, 2026
   Active · clear
8. Everguard Home Insulation INC

   Woodland Hills, CA · CSLB #224328 · as of June 27, 2026
   Active · clear
9. Excel Acoustics INC

   Corona, CA · CSLB #724511 · as of June 27, 2026
   Active · clear
10. Express Insulation INC

    Fresno, CA · CSLB #1005178 · as of June 27, 2026
    Active · clear
11. Family Air Conditioning INC

    Simi Valley, CA · CSLB #292613 · as of June 27, 2026
    Active · clear
12. Fibers Insulation

    Moreno Valley, CA · CSLB #1144311 · as of June 27, 2026
    Active · clear
13. Finest City Acoustics INC

    San Diego, CA · CSLB #882817 · as of June 27, 2026
    Active · clear
14. Finley Acoustical Ceilings

    Mission Viejo, CA · CSLB #367671 · as of June 27, 2026
    Active · clear
15. Firestop Insulation & Acoustical Specialties

    Santa Clara, CA · CSLB #1081664 · as of June 27, 2026
    Active · clear
16. Floor To Ceilings

    Concord, CA · CSLB #352139 · as of June 27, 2026
    Active · clear
17. F & M Foam And Coating

    San Bernardino, CA · CSLB #913172 · as of June 27, 2026
    Active · clear
18. Foam King

    Grass Valley, CA · CSLB #1027544 · as of June 27, 2026
    Active · clear
19. Fowlers Quality Roofing

    Ione, CA · CSLB #740226 · as of June 27, 2026
    Active · clear
20. Frane Ceiling Services

    Poway, CA · CSLB #674034 · as of June 27, 2026
    Active · clear
21. Builder Services Group INC DBA Gale Contractor Services

    Daytona Beach, CA · CSLB #709417 · as of June 27, 2026
    Active · clear
22. Garcia's Precision Acoustics INC

    San Marcos, CA · CSLB #605515 · as of June 27, 2026
    Active · clear
23. Gard Acoustic INC

    Villa Park, CA · CSLB #486468 · as of June 27, 2026
    Active · clear
24. Garner Acoustics

    La Habra, CA · CSLB #586007 · as of June 27, 2026
    Active · clear
25. Gaxiola Insulation Services

    Garden Grove, CA · CSLB #1064707 · as of June 27, 2026
    Active · clear
26. Gbi Insulation INC

    Pocatello, CA · CSLB #862702 · as of June 27, 2026
    Active · clear
27. G C Acoustics INC

    Capistrano Beach, CA · CSLB #623801 · as of June 27, 2026
    Active · clear
28. GC Custom Wallcoverings INC

    Ventura, CA · CSLB #1052301 · as of June 27, 2026
    Active · clear
29. Genesis Acoustics INC

    Fresno, CA · CSLB #627889 · as of June 27, 2026
    Active · clear
30. Giampolini & CO

    Emeryville, CA · CSLB #322282 · as of June 27, 2026
    Active · clear
31. Gibson Heating And Air Conditioning

    Redding, CA · CSLB #385291 · as of June 27, 2026
    Active · clear
32. Gilmore Company

    San Rafael, CA · CSLB #941806 · as of June 27, 2026
    Active · clear
33. E B Gilmore & Sons Mechanical Services INC

    San Francisco, CA · CSLB #740278 · as of June 27, 2026
    Active · clear
34. Godinez Insulation INC

    Salinas, CA · CSLB #1126322 · as of June 27, 2026
    Active · clear
35. Go Green Insulation

    Verdi, CA · CSLB #940286 · as of June 27, 2026
    Active · clear
36. Gold Coast Insulation INC

    Lompoc, CA · CSLB #1128613 · as of June 27, 2026
    Active · clear
37. Gold Country Roofing

    Grass Valley, CA · CSLB #453905 · as of June 27, 2026
    Active · clear
38. Golden Bay Insulation INC

    Menlo Park, CA · CSLB #967498 · as of June 27, 2026
    Active · clear
39. Golden Bear Acoustics

    Vacaville, CA · CSLB #717764 · as of June 27, 2026
    Active · clear
40. Golden Gate Fence

    Concord, CA · CSLB #991038 · as of June 27, 2026
    Active · clear
41. Golden State Insulation

    San Lorenzo, CA · CSLB #1016833 · as of June 27, 2026
    Active · clear
42. Gonzalez Insulation Corp

    Moreno Valley, CA · CSLB #888344 · as of June 27, 2026
    Active · clear
43. Good-start Insulation

    Hemet, CA · CSLB #1118359 · as of June 27, 2026
    Active · clear
44. Gore Acoustics & Drywall Systems INC

    Reno, CA · CSLB #947044 · as of June 27, 2026
    Active · clear
45. G P Interiors

    Phelan, CA · CSLB #690404 · as of June 27, 2026
    Active · clear
46. Joseph Grable Insulation

    Yucaipa, CA · CSLB #1095238 · as of June 27, 2026
    Active · clear
47. Grani Installation INC

    Huntington Beach, CA · CSLB #307767 · as of June 27, 2026
    Active · clear
48. Great Western Drywall

    San Diego, CA · CSLB #569654 · as of June 27, 2026
    Active · clear
49. Greenlight Insulation

    Winters, CA · CSLB #966994 · as of June 27, 2026
    Active · clear
50. Green Mountain Insulation Construction

    Fairfield, CA · CSLB #1114923 · as of June 27, 2026
    Active · clear
51. Greenshield INC

    Santa Clara, CA · CSLB #981761 · as of June 27, 2026
    Active · clear
52. Greiner Heating Air And Electric INC

    Dixon, CA · CSLB #365955 · as of June 27, 2026
    Active · clear
53. Daryl Griffis Acoustics INC

    San Diego, CA · CSLB #402601 · as of June 27, 2026
    Active · clear
54. Grizzly Ceiling Systems INC

    Los Gatos, CA · CSLB #786800 · as of June 27, 2026
    Active · clear
55. G & S Acoustics INC

    Simi Valley, CA · CSLB #381678 · as of June 27, 2026
    Active · clear
56. Gta Drywall INC

    Riverside, CA · CSLB #958980 · as of June 27, 2026
    Active · clear
57. Guardian Firestop And Insulation LLC

    Livermore, CA · CSLB #1125232 · as of June 27, 2026
    Active · clear
58. Guardian Spray Foam INC

    Acampo, CA · CSLB #958155 · as of June 27, 2026
    Active · clear
59. Guidry T I Acoustics INC

    Campbell, CA · CSLB #507877 · as of June 27, 2026
    Active · clear
60. Martin Gutierrez

    Bakersfield, CA · CSLB #1104317 · 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.