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C17 Glazing License (California)

California has 3,057 active C17 Glazing holders in the state file as of 2026-10-28¹, the 15th-largest of 64 classes with at least 200 holders. 91 of them expire by 2026-12-27.

Active holders: 3,057; 1.3% of active California licenses
Expiring by 2026-12-27: 91; 3.0% of holders
Median bond on file: $25,000; 3,055 bonds
Workers' comp exempt: 34.9%; of 3,057 with WC status

How many C17 contractors are exempt from workers' comp?

1,068 of 3,057 active C17 holders with a recorded status (34.9%) filed an exemption¹, against 48.7% across all California classes.

How do you check a C17 license?

Search by license number or business name on the California license lookup, which reads the same state file.

Other California license classes

C9 Drywall3,198
C53 Swimming Pool2,860
C6 Cabinet, Millwork and Finish Carpentry4,241
D28 Doors, Gates and Activated Barrier Systems2,807
C7 Low Voltage Systems4,692
D49 Tree Service2,668
C8 Concrete5,317
C12 Earthwork and Paving2,425

All 64 classes

Sources

CA CSLB License Master (cslb.ca.gov data portal) (cslb.ca.gov, 2026-10-28)