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Best Licensed Insulation Contractors in San Marcos, CA

4 insulation companies registered in San Marcos hold current CSLB licenses, verified against official records as of August 17, 2026. All 4 are listed below, ordered by years licensed.

How we chose: We identified 4 companies registered in San Marcos. 4 passed license verification. All 4 are listed below. Our methodology

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  1. 1.Garcia's Precision Acoustics Inc.

    ✓ CSLB License #605515 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1990
    Phone
    (760) 908-3700

  2. 2.Common Sense Solutions Inc. DBA Cool-roof Systems

    ✓ CSLB License #853763 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2005
    Phone
    (760) 747-5970

  3. 3.Omega Drywall Construction Inc.

    ✓ CSLB License #969461 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2012
    Phone
    (619) 997-9133

  4. 4.Cr Specialty Insulation Inc.

    ✓ CSLB License #1005200 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2015
    Phone
    (760) 213-7497

Compare the top 4 at a glance

CompanyLicenseWorkers' compLicensed since
Garcia's Precision Acoustics Inc.#605515On file1990
Common Sense Solutions Inc. DBA Cool-roof Systems#853763On file2005
Omega Drywall Construction Inc.#969461Exempt or none on file2012
Cr Specialty Insulation Inc.#1005200On file2015

San Diego County insulation licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 94 active C-2 insulation and acoustical licenses in San Diego County, 4 of them registered in San Marcos. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median San Marcos license has been held 14 years, and the longest-standing one dates to 1990. 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: 3 of San Marcos's 4 licenses (75.0%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 94 of the county's 94 licenses carry the same $25,000 bond California sets by statute. 8 county licenses reach their 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 San Marcos: common questions

How many licensed insulation contractors are there in San Marcos?

4 active C-2 insulation and acoustical licenses are registered in San Marcos, out of 94 across San Diego County. 4 San Marcos-registered companies passed our license verification, and all 4 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. 4 active C-2 insulation and acoustical licenses are registered in San Marcos and 94 across San Diego County, the longest-standing issued in 1990. 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 3 of San Marcos's 4 currently carry. 8 San Diego County licenses expire within 90 days.

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