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 361–420 of 691 contractors

J G Acoustics
Woodland, CA · CSLB #832107 · as of June 27, 2026
Active · clear
J - J A Y S Installation
Apple Valley, CA · CSLB #569891 · as of June 27, 2026
Active · clear
J - K Insulation Company INC
Glendora, CA · CSLB #531108 · as of June 27, 2026
Active · clear
JL Drywall
Chula Vista, CA · CSLB #1069832 · as of June 27, 2026
Active · clear
J & L Insulation INC
Lakeside, CA · CSLB #472996 · as of June 27, 2026
Active · clear
J L Marine Construction
Ventura, CA · CSLB #949899 · as of June 27, 2026
Active · clear
JM Insulation Group
Live Oak, CA · CSLB #982502 · as of June 27, 2026
Active · clear
J M Insulation INC
Pittsburg, CA · CSLB #1024947 · as of June 27, 2026
Active · clear
JNG Insulation Pros INC
Cutten, CA · CSLB #1041570 · as of June 27, 2026
Active · clear
Johnson Acoustics INC
Vacaville, CA · CSLB #1109012 · as of June 27, 2026
Active · clear
Johnson Drywall
Fresno, CA · CSLB #845439 · as of June 27, 2026
Active · clear
Johnson's Insulation
Oakland, CA · CSLB #1051108 · as of June 27, 2026
Active · clear
Jordan Roof Company
Garden Grove, CA · CSLB #406783 · as of June 27, 2026
Active · clear
J P M Acoustics
Anderson, CA · CSLB #1036711 · as of June 27, 2026
Active · clear
J R Insulation
Mammoth Lakes, CA · CSLB #1034117 · as of June 27, 2026
Active · clear
JR Insulation Services
Lomita, CA · CSLB #1058449 · as of June 27, 2026
Active · clear
Karcher Insulation INC
Anaheim, CA · CSLB #309141 · as of June 27, 2026
Active · clear
KC Insulation INC
Sparks, CA · CSLB #830494 · as of June 27, 2026
Active · clear
Kerco INC
Santa Fe Springs, CA · CSLB #608312 · as of June 27, 2026
Active · clear
Kiko's Insulation
Whittier, CA · CSLB #1100167 · as of June 27, 2026
Active · clear
K M Insulation
Rohnert Park, CA · CSLB #1057770 · as of June 27, 2026
Active · clear
Koala Insulation Of The Westside
Santa Monica, CA · CSLB #1128251 · as of June 27, 2026
Active · clear
Al Kramp Specialties
Stockton, CA · CSLB #336039 · as of June 27, 2026
Active · clear
Kreit Mechanical Associates INC
North Hollywood, CA · CSLB #819950 · as of June 27, 2026
Active · clear
John H Kruger Plastering & Drywall
Kneeland, CA · CSLB #754609 · as of June 27, 2026
Active · clear
Krull Acoustics INC
Mission Viejo, CA · CSLB #581612 · as of June 27, 2026
Active · clear
Lancaster Insulation INC
Palmdale, CA · CSLB #986286 · as of June 27, 2026
Active · clear
Lanham Insulation INC
Simpsonville, CA · CSLB #1015244 · as of June 27, 2026
Active · clear
Art La Sarge Acoustics
San Clemente, CA · CSLB #320744 · as of June 27, 2026
Active · clear
Legacy Acoustic Interiors
Novato, CA · CSLB #1141625 · as of June 27, 2026
Active · clear
Legacy Insulation INC
Salida, CA · CSLB #1070962 · as of June 27, 2026
Active · clear
Level 5 Acoustics INC
Sacramento, CA · CSLB #1110414 · as of June 27, 2026
Active · clear
Level 5 INC
Santa Clara, CA · CSLB #1012649 · as of June 27, 2026
Active · clear
Morris Levin And Son
Tulare, CA · CSLB #167881 · as of June 27, 2026
Active · clear
Light Contracting
Diamond Bar, CA · CSLB #1122793 · as of June 27, 2026
Active · clear
Lincoln Hall Acoustics
Los Angeles, CA · CSLB #1074714 · as of June 27, 2026
Active · clear
L J Interiors INC
Livermore, CA · CSLB #605932 · as of June 27, 2026
Active · clear
Juan Joseph Llera
Cypress, CA · CSLB #1065887 · as of June 27, 2026
Active · clear
Long Beach Acoustics
Whittier, CA · CSLB #988060 · as of June 27, 2026
Active · clear
C L General Construction INC DBA Carlos Lopez Insulation & Acoust
Coachella, CA · CSLB #927952 · as of June 27, 2026
Active · clear
Diego Lopez
Woodland, CA · CSLB #989509 · as of June 27, 2026
Active · clear
Lucatero Insulation Specialties
Manteca, CA · CSLB #1128750 · as of June 27, 2026
Active · clear
M A Acoustics
Riverside, CA · CSLB #993758 · as of June 27, 2026
Active · clear
Herman Hernandez Manibusan
Bakersfield, CA · CSLB #1076203 · as of June 27, 2026
Active · clear
Marathon Insulation
Sylmar, CA · CSLB #1094776 · as of June 27, 2026
Active · clear
Marina Mechanical Services
Livermore, CA · CSLB #416198 · as of June 27, 2026
Active · clear
Martin Integrated Systems
Orange, CA · CSLB #566629 · as of June 27, 2026
Active · clear
Master Drywall & Plastering INC
Lompoc, CA · CSLB #1010067 · as of June 27, 2026
Active · clear
Masterguard Insulation
Fresno, CA · CSLB #1002958 · as of June 27, 2026
Active · clear
Master Insulation Corp
Cypress, CA · CSLB #1100168 · as of June 27, 2026
Active · clear
Mccoy Insulation
Oakland, CA · CSLB #864203 · as of June 27, 2026
Active · clear
MC Gregor Acoustics
La Crescenta, CA · CSLB #657355 · as of June 27, 2026
Active · clear
Mchale's Environmental Insulation INC
Concord, CA · CSLB #896749 · as of June 27, 2026
Active · clear
MD Insulation Company
South El Monte, CA · CSLB #623669 · as of June 27, 2026
Active · clear
Mechanical Insulation Services Incorporated
Concord, CA · CSLB #457391 · as of June 27, 2026
Active · clear
Mechanical Insulation Systems INC
Redlands, CA · CSLB #1127254 · as of June 27, 2026
Active · clear
Mega Fume INC DBA Mega Insulation
Anaheim, CA · CSLB #1129512 · as of June 27, 2026
Active · clear
Mega Insulation
Anaheim, CA · CSLB #1132716 · as of June 27, 2026
Active · clear
Metropolitan High Performance Windows
Anaheim, CA · CSLB #1040950 · as of June 27, 2026
Active · clear
Meza Acoustics INC
Colton, CA · CSLB #1144479 · 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.