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Contractor LookoutCalifornia

Licensed Glazing Contractors in Ontario, California

Updated November 1, 2026 from CSLB's public license file · C-17 Glazing Contractor

  • 21licensed glazing contractors
  • 21active (Clear)
  • 0%with a suspension
  • 23.8%workers' comp exempt
  • 20.1 yrsmedian time licensed
  • 81%corp / LLC / partnership (19% sole owner)
  • 0new in the last 12 months
  • —change tracking began November 1, 2026

There are 21 glazing contractors based in Ontario in CSLB's current file. 21 (100%) have a Clear status as of November 1, 2026.

The share with a suspension, 0%, is 1.9 points lower than the San Bernardino County rate for the same license (1.9%). 23.8% report a workers' comp exemption, 11.9 points lower than the statewide figure for glazing contractors (35.7%), so many of these businesses say they have no employees.

Experience varies: 76.2% have been licensed 10+ years and 0 are new this year (median 20.1 years, vs 14.9 statewide).

In California this work generally calls for the C-17 Glazing Contractor license (or a B license when it is part of a larger multi-trade job). See the C-17 Glazing Contractor guide for what the license covers.

How to check a glazing contractor's license in Ontario

  1. Open the glazing contractor's profile from the table below (or search Ontario listings by name). Check that C-17 appears among its classifications and that the primary status reads Clear. What C-17 covers.
  2. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  3. Get the bid and contract in writing with the license number on it. If the job tops $1,000 in labor and materials, a licensed glazing contractor is required by law. See the $1,000 rule.

All 21 glazing contractors in Ontario

Ontario glazing contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed glazing contractors in Ontario
Business nameLicense #StatusYearsWorkers' compBond
Spec Construction CO INC 419626 Clear 44 Insured On file
L M I 471010 Clear 41 Insured On file
So-Cal Showerdoors 812487 Clear 24 Exempt On file
E B A Glassworks 821501 Clear 23 Insured On file
New View Auto Glass INC 840405 Clear 22 Insured On file
Villalobos Glass CO INC 851274 Clear 21 Insured On file
Myco Construction 853581 Clear 21 Insured On file
Young C Lee 867519 Clear 21 Exempt On file
Innovative Glazing Solutions 871285 Clear 20 Insured On file
Hoyle Robert 873164 Clear 20 Exempt On file
Smith Brothers Glass INC 885356 Clear 20 Insured On file
Design Windows & Doors INC 912367 Clear 18 Insured On file
Rynoclad Technologies INC 963208 Clear 15 Insured On file
Forrest Glass & Door 984938 Clear 13 Insured On file
Fresno Shower Door INC 986239 Clear 13 Insured On file
Axxess Door Corp 999754 Clear 11 Insured On file
First Choice Windows INC 1059753 Clear 7 Exempt On file
Arco Glass Plus INC 1087211 Clear 4 Insured On file
Kor Glass and Door LLC 1097600 Clear 4 Exempt On file
Platinum Glass Corporation 1098729 Clear 4 Insured On file
Astera Kitchen and Bath Cabinets 1134637 Clear 1 Insured On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed glazing contractors are in Ontario?

CSLB's current public file lists 21 glazing contractors with a Ontario mailing address. 21 have a Clear status, and 85.7% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a glazing contractor need in California?

Look for C-17 on the license. 21 businesses in Ontario hold it. Small jobs under $1,000 with no permit and no employees are exempt; everything else needs a license (details).

How do I check a glazing contractor's workers' comp?

Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In Ontario, 76.2% of glazing contractors list a policy, 23.8% claim an exemption and 0% show no current coverage. Confirm the policy with CSLB's workers' comp search before work starts. How to check workers' comp.

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Guides