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 181–240 of 696 contractors

Crawlspace Clean & Insulation Incorporated
Pleasanton, CA · CSLB #1063093 · as of October 6, 2026
Active · clear
Creative Ceilings INC
Concord, CA · CSLB #781556 · as of October 6, 2026
Active · clear
CRG Insulation & Acoustical INC
Vallejo, CA · CSLB #1128829 · as of October 6, 2026
Active · clear
CR Insulation INC
San Marcos, CA · CSLB #1038077 · as of October 6, 2026
Active · clear
CR Specialty Insulation INC
San Diego, CA · CSLB #1005200 · as of October 6, 2026
Active · clear
Custom Drywall INC
Milpitas, CA · CSLB #263495 · as of October 6, 2026
Active · clear
C Y C Commercial Wall Coverings
Hayward, CA · CSLB #990923 · as of October 6, 2026
Active · clear
D2
Medford, CA · CSLB #1035992 · as of October 6, 2026
Active · clear
D2 Services INC
Medford, CA · CSLB #597566 · as of October 6, 2026
Active · clear
Dads Heating & Air Conditioning INC
Temecula, CA · CSLB #922696 · as of October 6, 2026
Active · clear
Dahl Air Conditioning INC
Buellton, CA · CSLB #393444 · as of October 6, 2026
Active · clear
D Davis Plastering INC
Newhall, CA · CSLB #853189 · as of October 6, 2026
Active · clear
Day & Zimmermann NPS INC
Lancaster, CA · CSLB #462629 · as of October 6, 2026
Active · clear
D C Acoustics And Insulation INC
Fairfield, CA · CSLB #733521 · as of October 6, 2026
Active · clear
D C Acoustics INC
Valencia, CA · CSLB #699658 · as of October 6, 2026
Active · clear
DD Acoustics
Panorama City, CA · CSLB #1054369 · as of October 6, 2026
Active · clear
D & D Roofing And Sheet Metal INC
Sparks, CA · CSLB #486667 · as of October 6, 2026
Active · clear
D & D Spray Systems INC
Oakdale, CA · CSLB #1088690 · as of October 6, 2026
Active · clear
Dean's Acoustical Ceilings INC
Brentwood, CA · CSLB #475711 · as of October 6, 2026
Active · clear
Delta Insulation Services INC
Redwood City, CA · CSLB #1117247 · as of October 6, 2026
Active · clear
Desert Insulation INC
Yucca Valley, CA · CSLB #833710 · as of October 6, 2026
Active · clear
Desert Insulation LLC
Yuma, CA · CSLB #1127341 · as of October 6, 2026
Active · clear
D H P Insulation
Sacramento, CA · CSLB #848984 · as of October 6, 2026
Active · clear
Diamond Star Insulation
Lancaster, CA · CSLB #1100974 · as of October 6, 2026
Active · clear
Diaz Insulation LLC
Chico, CA · CSLB #951769 · as of October 6, 2026
Active · clear
Distinctive Metals, Angels Heating & Air Conditioning
Angels Camp, CA · CSLB #341424 · as of October 6, 2026
Active · clear
Dittemore Insulation Contractors INC
Anaheim, CA · CSLB #750723 · as of October 6, 2026
Active · clear
Division 9 Specialty
Rohnert Park, CA · CSLB #1003305 · as of October 6, 2026
Active · clear
D J Insulation INC
Oxnard, CA · CSLB #856787 · as of October 6, 2026
Active · clear
Dlab Drywall INC
Fontana, CA · CSLB #986090 · as of October 6, 2026
Active · clear
D M I
Santa Rosa, CA · CSLB #533381 · as of October 6, 2026
Active · clear
DM Insulation
Tracy, CA · CSLB #1138962 · as of October 6, 2026
Active · clear
David Romesburg & CO DBA DR Insulation
San Pedro, CA · CSLB #1148181 · as of October 6, 2026
Active · clear
Drywall Acoustics INC
Sacramento, CA · CSLB #1076993 · as of October 6, 2026
Active · clear
DS Insolation Corp
North Highlands, CA · CSLB #1115017 · as of October 6, 2026
Active · clear
Dudley Insulation INC
San Diego, CA · CSLB #992550 · as of October 6, 2026
Active · clear
Dvoskin Alon
Walnut Creek, CA · CSLB #1101431 · as of October 6, 2026
Active · clear
D W Acoustics INC
Santa Rosa, CA · CSLB #879037 · as of October 6, 2026
Active · clear
Eagle Insulation
Oak View, CA · CSLB #616305 · as of October 6, 2026
Active · clear
Eagle Painting & Drywall INC
North Highlands, CA · CSLB #963338 · as of October 6, 2026
Active · clear
Eagle Shield Technologies INC
Danville, CA · CSLB #993748 · as of October 6, 2026
Active · clear
Earp Insulation
El Cajon, CA · CSLB #916015 · as of October 6, 2026
Active · clear
Ecco Insulation INC
Sonoma, CA · CSLB #682377 · as of October 6, 2026
Active · clear
Echelon Firestop INC
Lodi, CA · CSLB #1017472 · as of October 6, 2026
Active · clear
Echols Acoustics
La Verne, CA · CSLB #374403 · as of October 6, 2026
Active · clear
Eclipse Acoustics
San Francisco, CA · CSLB #1140353 · as of October 6, 2026
Active · clear
Ecm Acoustic
Riverside, CA · CSLB #1058212 · as of October 6, 2026
Active · clear
Ecoattics INC
Roseville, CA · CSLB #963041 · as of October 6, 2026
Active · clear
Eco Attic Systems
San Rafael, CA · CSLB #1082470 · as of October 6, 2026
Active · clear
Eco Insulation Company LLC
Orangevale, CA · CSLB #1129297 · as of October 6, 2026
Active · clear
Econo Air
Placentia, CA · CSLB #445220 · as of October 6, 2026
Active · clear
Elite Acoustics INC
Rancho Cordova, CA · CSLB #1029090 · as of October 6, 2026
Active · clear
Elite Insulation
Menifee, CA · CSLB #1148517 · as of October 6, 2026
Active · clear
Elljay Acoustics INC
Irvine, CA · CSLB #1082089 · as of October 6, 2026
Active · clear
Elm Insulation & Sound Solutions
Chatsworth, CA · CSLB #1122923 · as of October 6, 2026
Active · clear
Emerald Insulation & Acoustical INC
San Francisco, CA · CSLB #1134153 · as of October 6, 2026
Active · clear
Empire Insulation Contractors
Windsor, CA · CSLB #819279 · as of October 6, 2026
Active · clear
Em Quality Insulation Services
Ducor, CA · CSLB #1063032 · as of October 6, 2026
Active · clear
Energy Guard Insulation
Lafayette, CA · CSLB #1009348 · as of October 6, 2026
Active · clear
Engel Insulation INC
Roseville, CA · CSLB #745646 · 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.