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Best Licensed Glass & Glazing Contractors in South San Francisco, CA

7 glass companies registered in South San Francisco hold current CSLB licenses, verified against official records as of August 17, 2026. All 7 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 7 companies registered in South San Francisco. 7 passed license verification. All 7 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.American Home Renewal Inc.

    ✓ CSLB License #740587 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1997
    Phone
    (650) 553-9054

  2. 2.Alexander Builders Inc.

    ✓ CSLB License #866157 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2005
    Phone
    (650) 871-7711

  3. 3.Core Glass & Aluminum Inc.

    ✓ CSLB License #924066 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2008
    Phone
    (415) 851-9770

  4. 4.South City Shower Door And Window Works Inc.

    ✓ CSLB License #937792 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2009
    Phone
    (650) 491-0011

  5. 5.Medallion Glass & Shower Doors

    ✓ CSLB License #1053356 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2019
    Phone
    (415) 559-0435

  6. 6.Flynn Glass & Sash

    ✓ CSLB License #548006 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1988
    Phone
    (650) 873-1785

  7. 7.Jest Glass

    ✓ CSLB License #1052948 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2019
    Phone
    (650) 243-1463

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
American Home Renewal Inc.#740587On file1997
Alexander Builders Inc.#866157On file2005
Core Glass & Aluminum Inc.#924066On file2008
South City Shower Door And Window Works Inc.#937792On file2009
Medallion Glass & Shower Doors#1053356On file2019
Flynn Glass & Sash#548006Exempt or none on file1988

San Mateo County glazing licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 50 active C-17 glazing licenses in San Mateo County, 7 of them registered in South San Francisco. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median South San Francisco license has been held 17 years, and the longest-standing one dates to 1988. 5 of South San Francisco's 7 licenses (71.4%) carry current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 50 of the county's 50 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.

Glass & Glazing Contractors in South San Francisco: common questions

How many licensed glass and glazing contractors are there in South San Francisco?

7 active C-17 glazing licenses are registered in South San Francisco, out of 50 across San Mateo County. 7 South San Francisco-registered companies passed our license verification, and all 7 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.

Does California license glass and glazing contractors?

Yes. California licenses contractors by classification, and C-17 is the CSLB classification that authorises this work. 7 active C-17 glazing licenses are registered in South San Francisco and 50 across San Mateo County, the longest-standing issued in 1988. Only CLEAR, unexpired licenses appear here.

How do I check a glazing 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 5 of South San Francisco's 7 currently carry. 1 San Mateo County license expires within 90 days.

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