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 August 11, 2026.

Showing 181–240 of 691 contractors

CRG Insulation & Acoustical INC
Vallejo, CA · CSLB #1128829 · as of August 11, 2026
Active · clear
CR Insulation INC
San Marcos, CA · CSLB #1038077 · as of August 11, 2026
Active · clear
CR Specialty Insulation INC
San Diego, CA · CSLB #1005200 · as of August 11, 2026
Active · clear
Custom Drywall INC
Milpitas, CA · CSLB #263495 · as of August 11, 2026
Active · clear
C Y C Commercial Wall Coverings
Hayward, CA · CSLB #990923 · as of August 11, 2026
Active · clear
D2
Medford, CA · CSLB #1035992 · as of August 11, 2026
Active · clear
D2 Services INC
Medford, CA · CSLB #597566 · as of August 11, 2026
Active · clear
Dads Heating & Air Conditioning INC
Temecula, CA · CSLB #922696 · as of August 11, 2026
Active · clear
Dahl Air Conditioning INC
Buellton, CA · CSLB #393444 · as of August 11, 2026
Active · clear
D Davis Plastering INC
Newhall, CA · CSLB #853189 · as of August 11, 2026
Active · clear
Day & Zimmermann NPS INC
Lancaster, CA · CSLB #462629 · as of August 11, 2026
Active · clear
D C Acoustics And Insulation INC
Fairfield, CA · CSLB #733521 · as of August 11, 2026
Active · clear
D C Acoustics INC
Valencia, CA · CSLB #699658 · as of August 11, 2026
Active · clear
DD Acoustics
Panorama City, CA · CSLB #1054369 · as of August 11, 2026
Active · clear
D & D Roofing And Sheet Metal INC
Sparks, CA · CSLB #486667 · as of August 11, 2026
Active · clear
D & D Spray Systems INC
Oakdale, CA · CSLB #1088690 · as of August 11, 2026
Active · clear
Dean's Acoustical Ceilings INC
Brentwood, CA · CSLB #475711 · as of August 11, 2026
Active · clear
Delta Insulation Services INC
Redwood City, CA · CSLB #1117247 · as of August 11, 2026
Active · clear
Desert Insulation INC
Yucca Valley, CA · CSLB #833710 · as of August 11, 2026
Active · clear
Desert Insulation LLC
Yuma, CA · CSLB #1127341 · as of August 11, 2026
Active · clear
Devore Insulation INC
Newhall, CA · CSLB #670000 · as of August 11, 2026
Active · clear
D H P Insulation
Sacramento, CA · CSLB #848984 · as of August 11, 2026
Active · clear
Diamond Star Insulation
Lancaster, CA · CSLB #1100974 · as of August 11, 2026
Active · clear
Diaz Insulation LLC
Chico, CA · CSLB #951769 · as of August 11, 2026
Active · clear
Distinctive Metals, Angels Heating & Air Conditioning
Angels Camp, CA · CSLB #341424 · as of August 11, 2026
Active · clear
Dittemore Insulation Contractors INC
Anaheim, CA · CSLB #750723 · as of August 11, 2026
Active · clear
D J Insulation INC
Oxnard, CA · CSLB #856787 · as of August 11, 2026
Active · clear
Dlab Drywall INC
Fontana, CA · CSLB #986090 · as of August 11, 2026
Active · clear
D M I
Santa Rosa, CA · CSLB #533381 · as of August 11, 2026
Active · clear
DM Insulation
Tracy, CA · CSLB #1138962 · as of August 11, 2026
Active · clear
D & N Acoustics INC
Anaheim, CA · CSLB #1005969 · as of August 11, 2026
Active · clear
David Romesburg & CO DBA DR Insulation
San Pedro, CA · CSLB #1148181 · as of August 11, 2026
Active · clear
Drywall Acoustics INC
Sacramento, CA · CSLB #1076993 · as of August 11, 2026
Active · clear
DS Insolation Corp
North Highlands, CA · CSLB #1115017 · as of August 11, 2026
Active · clear
Dudley Insulation INC
San Diego, CA · CSLB #992550 · as of August 11, 2026
Active · clear
Dvoskin Alon
Walnut Creek, CA · CSLB #1101431 · as of August 11, 2026
Active · clear
D W Acoustics INC
Santa Rosa, CA · CSLB #879037 · as of August 11, 2026
Active · clear
Dynamic Acoustics
Elverta, CA · CSLB #1104657 · as of August 11, 2026
Active · clear
Eagle Insulation
Oak View, CA · CSLB #616305 · as of August 11, 2026
Active · clear
Eagle Painting & Drywall INC
North Highlands, CA · CSLB #963338 · as of August 11, 2026
Active · clear
Eagle Shield Technologies INC
Danville, CA · CSLB #993748 · as of August 11, 2026
Active · clear
Earp Insulation
El Cajon, CA · CSLB #916015 · as of August 11, 2026
Active · clear
Ecco Insulation INC
Sonoma, CA · CSLB #682377 · as of August 11, 2026
Active · clear
Echelon Firestop INC
Lodi, CA · CSLB #1017472 · as of August 11, 2026
Active · clear
Echols Acoustics
La Verne, CA · CSLB #374403 · as of August 11, 2026
Active · clear
Eclipse Acoustics
San Francisco, CA · CSLB #1140353 · as of August 11, 2026
Active · clear
Ecm Acoustic
Riverside, CA · CSLB #1058212 · as of August 11, 2026
Active · clear
Ecoattics INC
Roseville, CA · CSLB #963041 · as of August 11, 2026
Active · clear
Eco Attic Systems
San Rafael, CA · CSLB #1082470 · as of August 11, 2026
Active · clear
Eco Insulation Company LLC
Orangevale, CA · CSLB #1129297 · as of August 11, 2026
Active · clear
Econo Air
Placentia, CA · CSLB #445220 · as of August 11, 2026
Active · clear
Elite Insulation
Menifee, CA · CSLB #1148517 · as of August 11, 2026
Active · clear
Elljay Acoustics INC
Irvine, CA · CSLB #1082089 · as of August 11, 2026
Active · clear
Elm Insulation & Sound Solutions
Chatsworth, CA · CSLB #1122923 · as of August 11, 2026
Active · clear
Emerald Insulation & Acoustical INC
San Francisco, CA · CSLB #1134153 · as of August 11, 2026
Active · clear
E M Insulation Company
East Palo Alto, CA · CSLB #1088202 · as of August 11, 2026
Active · clear
Empire Insulation Contractors
Windsor, CA · CSLB #819279 · as of August 11, 2026
Active · clear
Em Quality Insulation Services
Ducor, CA · CSLB #1063032 · as of August 11, 2026
Active · clear
Energy Guard Insulation
Lafayette, CA · CSLB #1009348 · as of August 11, 2026
Active · clear
Engel Insulation INC
Roseville, CA · CSLB #745646 · as of August 11, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of August 11, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.