Birdray

CSLB classification · Demolition

C-21 Building Moving and Demolition Contractor

Demolishes structures and moves buildings.

1,801
Active licences
1,190
With workers' comp
66%
282
Renewing in 90 days
32
Lapsed or suspended
508
Exempt
19
New in 90 days

Coverages a producer should expect

  • ›Workers' comp
  • ›General liability with high limits
  • ›Pollution
  • ›Commercial auto and equipment

WCIRB classes usually assigned

  • 5701 Wrecking or demolition of buildings

Governing class depends on actual operations and payroll. Verify with the WCIRB classification search before quoting.

Carriers writing this class

Policies on file, statewide

  1. State Compensation Insurance Fund591
  2. Zurich American Insurance Co.63
  3. Insurance Co. Of The West53
  4. Great Divide Insurance Co.34
  5. Pie Insurance Co.32
  6. Travelers Property Casualty Co. Of America23
  7. Everest Premier Insurance Co.20
  8. Omaha National Casualty Co.20
  9. Benchmark Insurance Co.14
  10. Cypress Insurance Co.13

C-21 workers' comp renewals by month, California

46
Sep
159
Oct
59
Nov
65
Dec
145
Jan
69
Feb
103
Mar
106
Apr
88
May
94
Jun
121
Jul
79
Aug
11
Sep

Counties with the most

  1. Los Angeles County446
  2. Orange County175
  3. San Diego County142
  4. Riverside County121
  5. San Bernardino County113
  6. Alameda County81
  7. Contra Costa County75
  8. County66
  9. Santa Clara County46
  10. Sacramento County43
  11. Fresno County42
  12. Ventura County41

Frequently asked

What does a C-21 licence allow a contractor to do?
Demolishes structures and moves buildings.
What insurance does a C-21 contractor need?
Workers' compensation is required by law once they have employees; the CSLB suspends a licence without it. Beyond that, producers usually place: Workers' comp; General liability with high limits; Pollution; Commercial auto and equipment.
How many C-21 contractors are there in California?
1,801 active licences hold the C-21 classification as of 2026-09-06; 1,190 (66%) have workers' comp on file and 508 are exempt.
When do C-21 workers' comp policies renew?
282 renew within 90 days. October is the peak month.
Which WCIRB class codes apply to C-21 work?
Most often 5701 (Wrecking or demolition of buildings). The WCIRB assigns the class from the actual operations and payroll, so verify per account in the WCIRB classification search.
Selling to C-21 contractors in California?
Birdray runs signal-timed outbound for one agency per territory: the companies behind these numbers, the person to email, and the renewal date, sent from your inbox. The database is free to search.
How the outbound worksSearch free

Sources: CSLB licence and workers' compensation records, California Secretary of State, OSHA, FMCSA, county permits. Aggregates only; no individual contractor appears on this page. "Active" means a CLEAR licence status. Renewal counts include policies on file with the CSLB expiring in the window. Refreshed weekly; this page as of 2026-09-06. Every field and its source →