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Best Licensed Glass & Glazing Contractors in Union City, CA

3 glass companies registered in Union City hold current CSLB licenses, verified against official records as of August 17, 2026. All 3 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 3 companies registered in Union City. 3 passed license verification. All 3 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.Aufdermauer Enterprises Inc.

    ✓ CSLB License #434560 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1983
    Phone
    (510) 244-7248

  2. 2.The Glass Company

    ✓ CSLB License #1139746 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2025
    Phone
    (510) 715-2422

  3. 3.Glass Doctor Of Bay Area

    ✓ CSLB License #1147003 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2025
    Phone
    (510) 378-8449

Compare the top 3 at a glance

CompanyLicenseWorkers' compLicensed since
Aufdermauer Enterprises Inc.#434560On file1983
The Glass Company#1139746On file2025
Glass Doctor Of Bay Area#1147003On file2025

Alameda County glazing licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 133 active C-17 glazing licenses in Alameda County, 3 of them registered in Union City. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Union City license has been held 1 year, and the longest-standing one dates to 1983. 3 of Union City's 3 licenses (100.0%) 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: 133 of the county's 133 licenses carry the same $25,000 bond California sets by statute. 13 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.

Glass & Glazing Contractors in Union City: common questions

How many licensed glass and glazing contractors are there in Union City?

3 active C-17 glazing licenses are registered in Union City, out of 133 across Alameda County. 3 Union City-registered companies passed our license verification, and all 3 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. 3 active C-17 glazing licenses are registered in Union City and 133 across Alameda County, the longest-standing issued in 1983. 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 3 of Union City's 3 currently carry. 13 Alameda County licenses expire within 90 days.

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