Insulation and Acoustical Contractors in El Cajon, CA
10 Insulation and Acoustical contractors in El Cajon, California appear in the CSLB public record — 10 with an active license. Check each one's status, bond, workers' compensation, and classifications before you hire.
Towne Drywall Inc
C-2 · El Cajon, CA
Verified June 17, 2026 · Bonded
BSC-Nevell JV LLC
C-2 · El Cajon, CA
Verified June 17, 2026 · Bonded
Tri-County Insulation Company Inc
C-2 · El Cajon, CA
Verified June 17, 2026 · Bonded
Hess Roofing Inc
C-2 · El Cajon, CA
Verified June 17, 2026 · Bonded
University Mechanical & Engineering Contractors Inc
C-2 · El Cajon, CA
Verified June 17, 2026 · Bonded
J and M Interior Specialties Inc
C-2 · El Cajon, CA
Verified June 17, 2026 · Bonded
Spira-Loc
C-2 · El Cajon, CA
Verified June 17, 2026 · Bonded
University Industrial Services
C-2 · El Cajon, CA
Verified June 17, 2026 · Bonded
Earp Insulation
C-2 · El Cajon, CA
Verified June 17, 2026 · Bonded
California Mechanical Insulation
C-2 · El Cajon, CA
Verified June 17, 2026 · Bonded
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Before you hire in El Cajon
Frequently asked questions
How many Insulation and Acoustical contractors are licensed in El Cajon, California?
This directory lists 10 Insulation and Acoustical contractors in El Cajon, California, of which 10 currently hold an active CSLB license.
How do I check if a Insulation and Acoustical contractor is licensed in El Cajon, California?
Open the contractor's profile here for their dated CSLB status, or look up their license number directly on the CSLB "Check a License" tool. A license must be active — not expired, suspended, or inactive — to be valid.
Should a Insulation and Acoustical contractor carry a bond and workers' compensation?
Most active CSLB licensees carry a contractor bond, and any contractor with employees must carry workers' compensation. Each profile shows what the CSLB record reports.