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Licensed Insulation Contractors in San Diego, California

Updated November 1, 2026 from CSLB's public license file · C-2 Insulation and Acoustical Contractor

  • 30licensed insulation contractors
  • 30active (Clear)
  • 0%with a suspension
  • 13.3%workers' comp exempt
  • 13.5 yrsmedian time licensed
  • 86.7%corp / LLC / partnership (13.3% sole owner)
  • 1new in the last 12 months
  • —change tracking began November 1, 2026

There are 30 insulation contractors based in San Diego in CSLB's current file. 30 (100%) have a Clear status as of November 1, 2026.

13.3% report a workers' comp exemption, 9.1 points lower than the statewide figure for insulation contractors (22.4%), so many of these businesses say they have no employees. The share with a suspension, 0%, is 1 points lower than the San Diego County rate for the same license (1%).

Experience varies: 60% have been licensed 10+ years and 1 is new this year (median 13.5 years, vs 17.7 statewide).

In California this work generally calls for the C-2 Insulation and Acoustical Contractor license (or a B license when it is part of a larger multi-trade job). See the C-2 Insulation and Acoustical Contractor guide for what the license covers.

How to check an insulation contractor's license in San Diego

  1. Look the company up by name or license number (search San Diego). On the profile, confirm three things: Clear status, the C-2 license for this kind of work, and a contractor's bond on file.
  2. Before any money changes hands, verify the license on CSLB's own lookup. Our data comes from CSLB's weekly file, so a very recent change may not show here yet.
  3. Match the license holder's name to the name on the written contract and the person you meet. Ask for proof of workers' comp if anyone besides the owner will work on site. Hiring checklist.

All 30 insulation contractors in San Diego

San Diego insulation contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed insulation contractors in San Diego
Business nameLicense #StatusYearsWorkers' compBond
Eco Services 290497 Clear 52 Insured On file
Griffis Daryl Acoustics INC 402601 Clear 45 Insured On file
Pacific Building Group 502376 Clear 39 Insured On file
Great Western Drywall 569654 Clear 37 Insured On file
D I A S Construction 682098 Clear 32 Exempt On file
C M Firestop INC 775289 Clear 26 Insured On file
Advanced Acoustic Contractors INC 797369 Clear 25 Insured On file
Pacific Rim Mechanical Contractors INC 814462 Clear 24 Insured On file
Empire Insulation INC 860072 Clear 21 Insured On file
C M S Interiors INC 871262 Clear 20 Insured On file
B S D Builders INC 879719 Clear 20 Insured On file
Finest City Acoustics INC 882817 Clear 20 Insured On file
Alexander Acoustics 883917 Clear 20 Exempt On file
Abs Acoustics 931587 Clear 17 Insured On file
American Acoustics 974392 Clear 14 Exempt On file
Empire Specialties 991212 Clear 12 Insured On file
Dudley Insulation INC 992550 Clear 12 Insured On file
Cr Specialty Insulation INC 1005200 Clear 11 Insured On file
Soundproof San Diego INC 1028422 Clear 9 Insured On file
Attic Projects LLC 1035247 Clear 8 Insured On file
Bloc Construction INC 1059540 Clear 7 Insured On file
Specialty Acoustics INC 1059778 Clear 7 Insured On file
Microgrid Builders LLC 1076848 Clear 5 Exempt On file
Jerico Firestopping 1089078 Clear 4 Insured On file
California Attic & Build INC 1102807 Clear 3 Insured On file
Safeguard Mechanical Insulation 1105448 Clear 3 Insured On file
R J I Acoustics 1108320 Clear 3 Insured On file
Smart Roofing and Restoration 1117548 Clear 2 Insured On file
Advacned Insulation System 1123381 Clear 2 Insured On file
Moxie Insulation Services LLC 1148964 Clear <1 Insured On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed insulation contractors are in San Diego?

CSLB's current public file lists 30 insulation contractors with a San Diego mailing address. 30 have a Clear status, and 90% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does an insulation contractor need in California?

CSLB issues the C-2 Insulation and Acoustical Contractor classification for this work. In San Diego County, 100% of San Diego's holders are Clear right now. The license requirement starts at $1,000 per job (the minor-work rule).

How do I check an insulation contractor's workers' comp?

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among San Diego insulation contractors, 13.3% are exempt (no employees), 86.7% insured and 0% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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