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 421–480 of 696 contractors

1. M G Interiors INC

   La Mirada, CA · CSLB #575194 · as of October 6, 2026
   Active · clear
2. MGT Insulation INC

   San Jose, CA · CSLB #1128483 · as of October 6, 2026
   Active · clear
3. Mib Heating & Air INC

   Woodland, CA · CSLB #1070438 · as of October 6, 2026
   Active · clear
4. Miller Attics

   Walnut Creek, CA · CSLB #1150503 · as of October 6, 2026
   Active · clear
5. Mission Accomplished Contracting INC

   Lake Havasu City, CA · CSLB #1109837 · as of October 6, 2026
   Active · clear
6. M L Interiors

   Moreno Valley, CA · CSLB #565192 · as of October 6, 2026
   Active · clear
7. Modern Interiors INC

   Long Beach, CA · CSLB #1076793 · as of October 6, 2026
   Active · clear
8. Monarch Insulation

   Costa Mesa, CA · CSLB #1088440 · as of October 6, 2026
   Active · clear
9. Mountain Insulation

   Grass Valley, CA · CSLB #1137068 · as of October 6, 2026
   Active · clear
10. Moxie Insulation Services LLC

    San Diego, CA · CSLB #1148964 · as of October 6, 2026
    Active · clear
11. MY Insulation Guy INC

    Riverside, CA · CSLB #1049977 · as of October 6, 2026
    Active · clear
12. Nas Acoustics INC

    Riverside, CA · CSLB #1143908 · as of October 6, 2026
    Active · clear
13. National Paving Company INC

    Riverside, CA · CSLB #583376 · as of October 6, 2026
    Active · clear
14. Next Level Insulation

    Riverside, CA · CSLB #1101777 · as of October 6, 2026
    Active · clear
15. Nguyen Insulation INC

    Austin, CA · CSLB #1140240 · as of October 6, 2026
    Active · clear
16. NH Ceilings INC

    Los Angeles, CA · CSLB #1142396 · as of October 6, 2026
    Active · clear
17. Nitram Acoustics

    Hayward, CA · CSLB #1121212 · as of October 6, 2026
    Active · clear
18. Noble Insulation INC

    Richmond, CA · CSLB #1007501 · as of October 6, 2026
    Active · clear
19. Nor - Cal Acoustics

    Walnut Creek, CA · CSLB #998459 · as of October 6, 2026
    Active · clear
20. Nor-cal Insulation INC

    Hollister, CA · CSLB #944403 · as of October 6, 2026
    Active · clear
21. North Bay Acoustics

    Sebastopol, CA · CSLB #538873 · as of October 6, 2026
    Active · clear
22. North Bay Pacific Insulators LLC

    Santa Rosa, CA · CSLB #1099244 · as of October 6, 2026
    Active · clear
23. Northcoast Acoustics

    Eureka, CA · CSLB #463191 · as of October 6, 2026
    Active · clear
24. North County Insulation INC

    Atascadero, CA · CSLB #616553 · as of October 6, 2026
    Active · clear
25. Northgate Acoustics INC

    Novato, CA · CSLB #902329 · as of October 6, 2026
    Active · clear
26. Northstar Insulation LLC

    Atwater, CA · CSLB #1002663 · as of October 6, 2026
    Active · clear
27. Northstate Acoustics Plus LLC

    Redding, CA · CSLB #1155773 · as of October 6, 2026
    Active · clear
28. N S G Acoustics

    Highland Park, CA · CSLB #891537 · as of October 6, 2026
    Active · clear
29. NSL Acoustics

    Elk Grove, CA · CSLB #910109 · as of October 6, 2026
    Active · clear
30. Oasis Air And Solar

    Bakersfield, CA · CSLB #1038061 · as of October 6, 2026
    Active · clear
31. Oc Insulation

    Riverside, CA · CSLB #1145033 · as of October 6, 2026
    Active · clear
32. Oj Specialty Contracting, LLC

    Columbus, CA · CSLB #1121154 · as of October 6, 2026
    Active · clear
33. Ric Olstad Roofing

    Woodland, CA · CSLB #742990 · as of October 6, 2026
    Active · clear
34. Omega Drywall Construction INC

    San Marcos, CA · CSLB #969461 · as of October 6, 2026
    Active · clear
35. Orkin Insulation Services

    Riverside, CA · CSLB #1124938 · as of October 6, 2026
    Active · clear
36. Otter Insulation LLC

    Santa Fe Springs, CA · CSLB #1109322 · as of October 6, 2026
    Active · clear
37. James N Owens

    Dutch Flat, CA · CSLB #422203 · as of October 6, 2026
    Active · clear
38. Pacific Coast Termite INC

    Fremont, CA · CSLB #1060229 · as of October 6, 2026
    Active · clear
39. Pacific States Insulation & Acoustical Contracting INC

    Oakland, CA · CSLB #939943 · as of October 6, 2026
    Active · clear
40. Pacific Trail Insulation

    Oroville, CA · CSLB #935629 · as of October 6, 2026
    Active · clear
41. Panda HVAC

    Concord, CA · CSLB #1040824 · as of October 6, 2026
    Active · clear
42. Paragon Acoustical Company INC

    Chino, CA · CSLB #658236 · as of October 6, 2026
    Active · clear
43. Paragon Spray Foam INC

    Van Nuys, CA · CSLB #1090885 · as of October 6, 2026
    Active · clear
44. Jeff Paul

    Rowland Heights, CA · CSLB #614852 · as of October 6, 2026
    Active · clear
45. P E M Insulation CO INC

    Fairfield, CA · CSLB #461833 · as of October 6, 2026
    Active · clear
46. Performance Insulation

    Montague, CA · CSLB #855598 · as of October 6, 2026
    Active · clear
47. Petrochem Insulation INC

    Tempe, CA · CSLB #300201 · as of October 6, 2026
    Active · clear
48. Phoenix Insulation INC

    Olivehurst, CA · CSLB #1131519 · as of October 6, 2026
    Active · clear
49. Pinnacle Drywall

    Upland, CA · CSLB #1131293 · as of October 6, 2026
    Active · clear
50. Platinum Insulation & Specialties Contractor

    French Camp, CA · CSLB #984046 · as of October 6, 2026
    Active · clear
51. PLP Enterprises INC

    Escondido, CA · CSLB #953698 · as of October 6, 2026
    Active · clear
52. Polar Coatings Company

    Livermore, CA · CSLB #879973 · as of October 6, 2026
    Active · clear
53. Ponzini Insulation INC

    San Juan Bautista, CA · CSLB #635993 · as of October 6, 2026
    Active · clear
54. PRC Insulation INC

    Hayward, CA · CSLB #1146785 · as of October 6, 2026
    Active · clear
55. Preferred Firestopping INC

    Corona, CA · CSLB #965711 · as of October 6, 2026
    Active · clear
56. Preferred Insulation Contractors INC

    Corona, CA · CSLB #824373 · as of October 6, 2026
    Active · clear
57. Premier Acoustics INC

    Corona, CA · CSLB #949939 · as of October 6, 2026
    Active · clear
58. Premier Contractors INC

    Newport Beach, CA · CSLB #979371 · as of October 6, 2026
    Active · clear
59. Premier Insulation INC

    Canoga Park, CA · CSLB #1091747 · as of October 6, 2026
    Active · clear
60. Premium Insulation LLC

    Mammoth Lakes, CA · CSLB #1088148 · 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.