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Best Licensed Insulation Contractors in Tracy, CA

6 insulation companies registered in Tracy hold current CSLB licenses, verified against official records as of August 17, 2026. All 6 are listed below, ordered by years licensed.

How we chose: We identified 6 companies registered in Tracy. 6 passed license verification. All 6 are listed below. Our methodology

We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.

  1. 1.J D Firestop Pros Inc.

    ✓ CSLB License #891905 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2007
    Phone
    (925) 337-8546

  2. 2.American Attics

    ✓ CSLB License #1117229 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2024
    Phone
    (619) 713-3777

  3. 3.Ca Attic Solutions Inc.

    ✓ CSLB License #1120795 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2024
    Phone
    (408) 444-4455

  4. 4.Ad Insulation

    ✓ CSLB License #1122512 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2024
    Phone
    (209) 640-6379

  5. 5.Quality Insulation Services Inc.

    ✓ CSLB License #1129494 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2024
    Phone
    (209) 276-8400

  6. 6.Dm Insulation

    ✓ CSLB License #1138962 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2025
    Phone
    (209) 229-3684

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
J D Firestop Pros Inc.#891905On file2007
American Attics#1117229On file2024
Ca Attic Solutions Inc.#1120795On file2024
Ad Insulation#1122512On file2024
Quality Insulation Services Inc.#1129494Exempt or none on file2024
Dm Insulation#1138962Exempt or none on file2025

San Joaquin County insulation licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 28 active C-2 insulation and acoustical licenses in San Joaquin County, 6 of them registered in Tracy. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Tracy license has been held 2 years, and the longest-standing one dates to 2007. California law requires workers' compensation cover for C-2 licensees, so it is a legal baseline rather than a way to tell two contractors apart: 4 of Tracy's 6 licenses (66.7%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 28 of the county's 28 licenses carry the same $25,000 bond California sets by statute. 1 county license reaches its expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.

Insulation Contractors in Tracy: common questions

How many licensed insulation contractors are there in Tracy?

6 active C-2 insulation and acoustical licenses are registered in Tracy, out of 28 across San Joaquin County. 6 Tracy-registered companies passed our license verification, and all 6 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.

Does California license insulation contractors?

Yes. California licenses contractors by classification, and C-2 is the CSLB classification that authorises this work. 6 active C-2 insulation and acoustical licenses are registered in Tracy and 28 across San Joaquin County, the longest-standing issued in 2007. Only CLEAR, unexpired licenses appear here.

How do I check an insulation contractor's license in California?

Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which California requires of C-2 licensees and 4 of Tracy's 6 currently carry. 1 San Joaquin County license expires within 90 days.

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