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Best Licensed Door & Gate Contractors in San Bruno, CA

4 door and gate companies registered in San Bruno hold current CSLB licenses, verified against official records as of August 17, 2026. All 4 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 4 companies registered in San Bruno. 4 passed license verification. All 4 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.Arnolds Door And Operator Service

    ✓ CSLB License #428201 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1982
    Phone
    (650) 302-0555

  2. 2.O'shaughnessy Garage Doors

    ✓ CSLB License #939522 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2009
    Phone
    (415) 756-9230

  3. 3.Mt Custom Shower Door

    ✓ CSLB License #1115190 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2024
    Phone
    (650) 201-1352

  4. 4.Bay City Security Specialist

    ✓ CSLB License #1129865 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2024
    Phone
    (650) 274-9725

Compare the top 4 at a glance

CompanyLicenseWorkers' compLicensed since
Arnolds Door And Operator Service#428201Exempt or none on file1982
O'shaughnessy Garage Doors#939522Exempt or none on file2009
Mt Custom Shower Door#1115190Exempt or none on file2024
Bay City Security Specialist#1129865Exempt or none on file2024

San Mateo County door and gate licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 44 active D-28 doors, gates and activating devices licenses in San Mateo County, 4 of them registered in San Bruno. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median San Bruno license has been held 2 years, and the longest-standing one dates to 1982. 0 of San Bruno's 4 licenses (0.0%) 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: 44 of the county's 44 licenses carry the same $25,000 bond California sets by statute. 7 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.

Door & Gate Contractors in San Bruno: common questions

How many licensed door and gate contractors are there in San Bruno?

4 active D-28 doors, gates and activating devices licenses are registered in San Bruno, out of 44 across San Mateo County. 4 San Bruno-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 door and gate contractors?

Yes. California licenses contractors by classification, and D-28 is the CSLB classification that authorises this work. 4 active D-28 doors, gates and activating devices licenses are registered in San Bruno and 44 across San Mateo County, the longest-standing issued in 1982. Only CLEAR, unexpired licenses appear here.

How do I check a door and gate 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 0 of San Bruno's 4 currently carry. 7 San Mateo County licenses expire within 90 days.

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