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 361–420 of 696 contractors

J - K Insulation Company INC
Glendora, CA · CSLB #531108 · as of October 6, 2026
Active · clear
JL Drywall
Chula Vista, CA · CSLB #1069832 · as of October 6, 2026
Active · clear
J & L Insulation INC
Lakeside, CA · CSLB #472996 · as of October 6, 2026
Active · clear
J L Marine Construction
Ventura, CA · CSLB #949899 · as of October 6, 2026
Active · clear
JM Insulation Group
Live Oak, CA · CSLB #982502 · as of October 6, 2026
Active · clear
J M Insulation INC
Pittsburg, CA · CSLB #1024947 · as of October 6, 2026
Active · clear
JNG Insulation Pros INC
Cutten, CA · CSLB #1041570 · as of October 6, 2026
Active · clear
Johnson Acoustics INC
Vacaville, CA · CSLB #1109012 · as of October 6, 2026
Active · clear
Johnson Drywall
Fresno, CA · CSLB #845439 · as of October 6, 2026
Active · clear
Johnson's Insulation
Oakland, CA · CSLB #1051108 · as of October 6, 2026
Active · clear
Jordan Roof Company
Garden Grove, CA · CSLB #406783 · as of October 6, 2026
Active · clear
J P M Acoustics
Anderson, CA · CSLB #1036711 · as of October 6, 2026
Active · clear
JR Insulation Services
Lomita, CA · CSLB #1058449 · as of October 6, 2026
Active · clear
Karcher Insulation INC
Anaheim, CA · CSLB #309141 · as of October 6, 2026
Active · clear
KC Insulation INC
Sparks, CA · CSLB #830494 · as of October 6, 2026
Active · clear
Keph Acoustical Construction
Dadeville, CA · CSLB #903804 · as of October 6, 2026
Active · clear
Kerco INC
Santa Fe Springs, CA · CSLB #608312 · as of October 6, 2026
Active · clear
K M Insulation
Rohnert Park, CA · CSLB #1057770 · as of October 6, 2026
Active · clear
Koala Insulation Of The Westside
Santa Monica, CA · CSLB #1128251 · as of October 6, 2026
Active · clear
Al Kramp Specialties
Stockton, CA · CSLB #336039 · as of October 6, 2026
Active · clear
Kreit Mechanical Associates INC
North Hollywood, CA · CSLB #819950 · as of October 6, 2026
Active · clear
John H Kruger Plastering & Drywall
Kneeland, CA · CSLB #754609 · as of October 6, 2026
Active · clear
Krull Acoustics INC
Mission Viejo, CA · CSLB #581612 · as of October 6, 2026
Active · clear
Lancaster Insulation INC
Palmdale, CA · CSLB #986286 · as of October 6, 2026
Active · clear
Lanham Insulation INC
Simpsonville, CA · CSLB #1015244 · as of October 6, 2026
Active · clear
Art La Sarge Acoustics
San Clemente, CA · CSLB #320744 · as of October 6, 2026
Active · clear
Legacy Acoustic Interiors
Novato, CA · CSLB #1141625 · as of October 6, 2026
Active · clear
Legacy Insulation INC
Salida, CA · CSLB #1070962 · as of October 6, 2026
Active · clear
Leos Insulation LLC
Sylmar, CA · CSLB #1160010 · as of October 6, 2026
Active · clear
Level 5 Acoustics INC
Sacramento, CA · CSLB #1110414 · as of October 6, 2026
Active · clear
Level 5 INC
Santa Clara, CA · CSLB #1012649 · as of October 6, 2026
Active · clear
Morris Levin And Son
Tulare, CA · CSLB #167881 · as of October 6, 2026
Active · clear
Light Contracting
Diamond Bar, CA · CSLB #1122793 · as of October 6, 2026
Active · clear
Lincoln Hall Acoustics
Los Angeles, CA · CSLB #1074714 · as of October 6, 2026
Active · clear
L J Interiors INC
Livermore, CA · CSLB #605932 · as of October 6, 2026
Active · clear
Juan Joseph Llera
Cypress, CA · CSLB #1065887 · as of October 6, 2026
Active · clear
Long Beach Acoustics
Whittier, CA · CSLB #988060 · as of October 6, 2026
Active · clear
C L General Construction INC DBA Carlos Lopez Insulation & Acoust
Coachella, CA · CSLB #927952 · as of October 6, 2026
Active · clear
Diego Lopez
Woodland, CA · CSLB #989509 · as of October 6, 2026
Active · clear
Lucatero Insulation Specialties
Manteca, CA · CSLB #1128750 · as of October 6, 2026
Active · clear
Luxe Spray Foam Insulation
Fairfield, CA · CSLB #1157953 · as of October 6, 2026
Active · clear
M A Acoustics
Riverside, CA · CSLB #993758 · as of October 6, 2026
Active · clear
Macedo Insulation INC
Moreno Valley, CA · CSLB #1161789 · as of October 6, 2026
Active · clear
Herman Hernandez Manibusan
Bakersfield, CA · CSLB #1076203 · as of October 6, 2026
Active · clear
Marathon Insulation
Sylmar, CA · CSLB #1094776 · as of October 6, 2026
Active · clear
Marina Mechanical Services
Livermore, CA · CSLB #416198 · as of October 6, 2026
Active · clear
Martin Integrated Systems
Orange, CA · CSLB #566629 · as of October 6, 2026
Active · clear
Master Drywall & Plastering INC
Lompoc, CA · CSLB #1010067 · as of October 6, 2026
Active · clear
Masterguard Insulation
Fresno, CA · CSLB #1002958 · as of October 6, 2026
Active · clear
Master Insulation Corp
Cypress, CA · CSLB #1100168 · as of October 6, 2026
Active · clear
Mccoy Insulation
Oakland, CA · CSLB #864203 · as of October 6, 2026
Active · clear
MC Gregor Acoustics
La Crescenta, CA · CSLB #657355 · as of October 6, 2026
Active · clear
Mchale's Environmental Insulation INC
Concord, CA · CSLB #896749 · as of October 6, 2026
Active · clear
MD Insulation Company
South El Monte, CA · CSLB #623669 · as of October 6, 2026
Active · clear
Mechanical Insulation Systems INC
Redlands, CA · CSLB #1127254 · as of October 6, 2026
Active · clear
Meeks
Buffalo Grove, CA · CSLB #1103507 · as of October 6, 2026
Active · clear
Mega Insulation
Anaheim, CA · CSLB #1132716 · as of October 6, 2026
Active · clear
Mega Fume INC DBA Mega Insulation
Anaheim, CA · CSLB #1129512 · as of October 6, 2026
Active · clear
Metropolitan High Performance Windows
Anaheim, CA · CSLB #1040950 · as of October 6, 2026
Active · clear
Meza Acoustics INC
Colton, CA · CSLB #1144479 · 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.