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 481–540 of 691 contractors

Premium Insulation LLC
Mammoth Lakes, CA · CSLB #1088148 · as of June 27, 2026
Active · clear
Premium Insulation Services INC
Bakersfield, CA · CSLB #1010589 · as of June 27, 2026
Active · clear
Prestige Insulation
Bridgeport, CA · CSLB #1151761 · as of June 27, 2026
Active · clear
Prime Acoustics
Westlake Village, CA · CSLB #739826 · as of June 27, 2026
Active · clear
Process Cooling International LLC
Modesto, CA · CSLB #1133819 · as of June 27, 2026
Active · clear
Procraft Acoustics
San Bernardino, CA · CSLB #1072654 · as of June 27, 2026
Active · clear
Professional Ceilings Incorporated
Sacramento, CA · CSLB #1047444 · as of June 27, 2026
Active · clear
Pro Insulation INC
Ontario, CA · CSLB #898228 · as of June 27, 2026
Active · clear
Pro Insulation & Rodents LLC
Hayward, CA · CSLB #1138592 · as of June 27, 2026
Active · clear
Pro Service Insulation
Murrieta, CA · CSLB #1025451 · as of June 27, 2026
Active · clear
Pro Wall Lath & Plaster INC
Escondido, CA · CSLB #818219 · as of June 27, 2026
Active · clear
Pro West Insulation
Fresno, CA · CSLB #1123787 · as of June 27, 2026
Active · clear
Pure Eco INC
Chatsworth, CA · CSLB #993589 · as of June 27, 2026
Active · clear
Purl's Sheet Metal & Air Conditioning
Madera, CA · CSLB #463756 · as of June 27, 2026
Active · clear
Pyramid Interiors INC
Downey, CA · CSLB #967625 · as of June 27, 2026
Active · clear
Quality Control 7 Insulation INC
Paramount, CA · CSLB #1146744 · as of June 27, 2026
Active · clear
Quality Insulation Services INC
Tracy, CA · CSLB #1129494 · as of June 27, 2026
Active · clear
Quality Mechanical Insulation INC
Murrieta, CA · CSLB #966496 · as of June 27, 2026
Active · clear
Mike Rabaino Roofing INC
Woodland, CA · CSLB #718002 · as of June 27, 2026
Active · clear
Ramco
Madera, CA · CSLB #933661 · as of June 27, 2026
Active · clear
Ram Insulation INC
Signal Hill, CA · CSLB #994116 · as of June 27, 2026
Active · clear
R B H Insulation INC
Hawthorne, CA · CSLB #558799 · as of June 27, 2026
Active · clear
R C Enterprizes
Bakersfield, CA · CSLB #491517 · as of June 27, 2026
Active · clear
R E Drywall Contracting INC
San Dimas, CA · CSLB #584494 · as of June 27, 2026
Active · clear
Redwood Insulation
Fulton, CA · CSLB #1044785 · as of June 27, 2026
Active · clear
Relyont Insulation
Mission Viejo, CA · CSLB #1111555 · as of June 27, 2026
Active · clear
Remedi8 LLC
Lenexa, CA · CSLB #1056460 · as of June 27, 2026
Active · clear
Richard Smith
Novato, CA · CSLB #1136072 · as of June 27, 2026
Active · clear
Ridout Roofing Company INC
San Leandro, CA · CSLB #260176 · as of June 27, 2026
Active · clear
Rig Insulation
Las Vegas, CA · CSLB #1052637 · as of June 27, 2026
Active · clear
R - Insulation
Bakersfield, CA · CSLB #1042321 · as of June 27, 2026
Active · clear
Rivera Construction
Sonora, CA · CSLB #823218 · as of June 27, 2026
Active · clear
Rivercity Roofing INC
West Sacramento, CA · CSLB #985269 · as of June 27, 2026
Active · clear
R J I Acoustics
San Diego, CA · CSLB #1108320 · as of June 27, 2026
Active · clear
I V Mechanical INC DBA R & K Air Conditioning
El Centro, CA · CSLB #839022 · as of June 27, 2026
Active · clear
R-line Insulation Incorporated
Stockton, CA · CSLB #1075141 · as of June 27, 2026
Active · clear
RMC Insulation Experts INC
Manteca, CA · CSLB #1148439 · as of June 27, 2026
Active · clear
R M Insulation
Ducor, CA · CSLB #768657 · as of June 27, 2026
Active · clear
Robert Insulation & Drywall INC
Novato, CA · CSLB #704473 · as of June 27, 2026
Active · clear
Roberts Firestop
Stockton, CA · CSLB #478057 · as of June 27, 2026
Active · clear
Victor M Robles Gonzalez
South Gate, CA · CSLB #768869 · as of June 27, 2026
Active · clear
Rodriguez Insulation
Fresno, CA · CSLB #928053 · as of June 27, 2026
Active · clear
Rolling Plains Construction INC
Henderson, CA · CSLB #777187 · as of June 27, 2026
Active · clear
Roxxor Pro Insulation CO
Fresno, CA · CSLB #1131479 · as of June 27, 2026
Active · clear
R & R Acoustics
Hollister, CA · CSLB #557454 · as of June 27, 2026
Active · clear
R R Electric Heating & Air
Moorpark, CA · CSLB #714651 · as of June 27, 2026
Active · clear
R & R Enterprises
Davis, CA · CSLB #362907 · as of June 27, 2026
Active · clear
R & R Group INC
Riverside, CA · CSLB #1071598 · as of June 27, 2026
Active · clear
Rubio Acoustical Interiors
Brentwood, CA · CSLB #1110644 · as of June 27, 2026
Active · clear
Ruiz Insulation
Sacramento, CA · CSLB #1043821 · as of June 27, 2026
Active · clear
Rywen Insulation INC
San Leandro, CA · CSLB #1140414 · as of June 27, 2026
Active · clear
Sacramento Insulation LLC
Orlando, CA · CSLB #1144490 · as of June 27, 2026
Active · clear
Safeguard Mechanical Insulation
San Diego, CA · CSLB #1105448 · as of June 27, 2026
Active · clear
Sahuaro Insulation Services
Fontana, CA · CSLB #1038848 · as of June 27, 2026
Active · clear
Sam - Son Acoustics INC
Somis, CA · CSLB #547056 · as of June 27, 2026
Active · clear
San Francisco Interiors INC
San Rafael, CA · CSLB #804224 · as of June 27, 2026
Active · clear
Santa Cruz Insulation
Watsonville, CA · CSLB #816692 · as of June 27, 2026
Active · clear
Santa Maria Acoustical CO INC
Grover Beach, CA · CSLB #415904 · as of June 27, 2026
Active · clear
Santiago Roofing INC
Brea, CA · CSLB #576276 · as of June 27, 2026
Active · clear
Sauls Acoustical
Santa Rosa, CA · CSLB #360726 · 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.