Homversa
Find. Call. Fixed. - every listing checked against the official license or credential registry for its trade.

Best Licensed Insulation Contractors in San Francisco, CA

12 insulation companies registered in San Francisco hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.

How we chose: We identified 12 companies registered in San Francisco. 12 passed license verification. The 8 below are the top-ranked of those. 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.Anderson Rowe & Buckley Inc.

    ✓ CSLB License #91594 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1947
    Phone
    (415) 282-1625

  2. 2.Standard Roofing Company

    ✓ CSLB License #348544 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1977
    Phone
    (415) 566-2049

  3. 3.Temper Insulation Co Inc.

    ✓ CSLB License #475279 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1985
    Phone
    (415) 255-7677

  4. 4.E B Gilmore & Sons Mechanical Services Inc.

    ✓ CSLB License #740278 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1997
    Phone
    (415) 861-0944

  5. 5.Baf Specialty Inc.

    ✓ CSLB License #765120 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1999
    Phone
    (415) 874-9840

  6. 6.City Wide Insulation Company Inc.

    ✓ CSLB License #850842 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2004
    Phone
    (415) 652-0260

  7. 7.Eco Bay Services Inc.

    ✓ CSLB License #912328 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2008
    Phone
    (415) 643-7777

  8. 8.C K Interiors Inc.

    ✓ CSLB License #939658 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2009
    Phone
    (925) 497-4341

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Anderson Rowe & Buckley Inc.#91594On file1947
Standard Roofing Company#348544On file1977
Temper Insulation Co Inc.#475279On file1985
E B Gilmore & Sons Mechanical Services Inc.#740278On file1997
Baf Specialty Inc.#765120On file1999
City Wide Insulation Company Inc.#850842On file2004

San Francisco County insulation licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 12 active C-2 insulation and acoustical licenses in San Francisco County, 12 of them registered in San Francisco. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median San Francisco license has been held 18 years, and the longest-standing one dates to 1947. 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: 11 of San Francisco's 12 licenses (91.7%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 12 of the county's 12 licenses carry the same $25,000 bond California sets by statute. 3 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 Francisco: common questions

How many licensed insulation contractors are there in San Francisco?

12 active C-2 insulation and acoustical licenses are registered in San Francisco, out of 12 across San Francisco County. 12 San Francisco-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. 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. 12 active C-2 insulation and acoustical licenses are registered in San Francisco and 12 across San Francisco County, the longest-standing issued in 1947. 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 11 of San Francisco's 12 currently carry. 3 San Francisco County licenses expire within 90 days.

Other services in San Francisco

Insulation Contractors in other California cities