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Best Licensed Glass & Glazing Contractors in Ontario, CA

19 glass companies registered in Ontario hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.

How we chose: We identified 19 companies registered in Ontario. 19 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.Spec Construction Co Inc.

    ✓ CSLB License #419626 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1982
    Phone
    (909) 947-4601

  2. 2.Larry Methvin Installations Inc. DBA Lmi

    ✓ CSLB License #471010 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1985
    Phone
    (909) 605-6468

  3. 3.E B A Glassworks

    ✓ CSLB License #821501 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2003
    Phone
    (909) 923-4511

  4. 4.New View Auto Glass Inc.

    ✓ CSLB License #840405 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2004
    Phone
    (714) 890-1347

  5. 5.Myco Construction

    ✓ CSLB License #853581 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2005
    Phone
    (909) 456-9719

  6. 6.Innovative Glazing Solutions

    ✓ CSLB License #871285 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2006
    Phone
    (909) 947-2314

  7. 7.Smith Brothers Glass Inc.

    ✓ CSLB License #885356 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2006
    Phone
    (909) 983-3029

  8. 8.Design Windows & Doors Inc.

    ✓ CSLB License #912367 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2008
    Phone
    (909) 980-3003

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Spec Construction Co Inc.#419626On file1982
Larry Methvin Installations Inc. DBA Lmi#471010On file1985
E B A Glassworks#821501On file2003
New View Auto Glass Inc.#840405On file2004
Myco Construction#853581On file2005
Innovative Glazing Solutions#871285On file2006

San Bernardino County glazing licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 153 active C-17 glazing licenses in San Bernardino County, 20 of them registered in Ontario. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Ontario license has been held 18 years, and the longest-standing one dates to 1982. 15 of Ontario's 20 licenses (75.0%) 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: 153 of the county's 153 licenses carry the same $25,000 bond California sets by statute. 16 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 Ontario: common questions

How many licensed glass and glazing contractors are there in Ontario?

20 active C-17 glazing licenses are registered in Ontario, out of 153 across San Bernardino County. 19 Ontario-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 glass and glazing contractors?

Yes. California licenses contractors by classification, and C-17 is the CSLB classification that authorises this work. 20 active C-17 glazing licenses are registered in Ontario and 153 across San Bernardino County, the longest-standing issued in 1982. 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 15 of Ontario's 20 currently carry. 16 San Bernardino County licenses expire within 90 days.

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