Quick answer
California requires workers' comp for all licensed contractors as of 2026 (SB 216), even with no employees. Premiums are priced per $100 of payroll by trade class code, and your X-Mod and claims history drive the rate. A coverage lapse can suspend your CSLB license.
Last updated: June 2026
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High payroll. Complex class codes. CSLB compliance requirements. Wellington Partners Insurance Services specializes in placing workers' compensation for California general contractors, specialty trades, and construction firms with $100K+ in payroll.
Who We Cover
From large commercial GCs to specialty subcontractors — we place WC across the full spectrum of California construction and trades.
Residential & commercial GCs managing multiple subcontractors and large payrolls.
Licensed C-10 electrical contractors, low-voltage, solar & EV charging installers.
C-36 plumbing contractors, pipefitters, and underground utility crews.
Heating, ventilation, air conditioning, and refrigeration contractors statewide.
C-39 roofing contractors — one of the highest WC exposure classes in California.
Flatwork, structural concrete, masonry, and foundation contractors.
Wood frame and structural steel contractors on residential and commercial projects.
Selective and full demolition contractors — high-hazard class codes we specialize in placing.
CSLB Compliance
The California Contractors State License Board requires all licensed contractors with employees to maintain active workers' compensation coverage. Non-compliance puts your license at risk.
Licensed contractors who are sole proprietors with zero employees may file a WC exemption with the CSLB. However, this exemption has important limitations:
Wellington Partners Insurance Services can place a WC policy for sole proprietors who want coverage even without employees — and can issue certificates of insurance same day for job bids.
Coverage Details
California contractor WC policies must meet specific statutory requirements. Here's what a properly structured policy includes.
All reasonable and necessary medical treatment for work-related injuries, with no dollar limit under California law.
Wage replacement benefits (up to 2/3 of average weekly wage) while an injured worker is unable to work during recovery.
Benefits for workers who sustain permanent impairment from a work-related injury, rated by a qualified medical evaluator.
Supplemental job displacement benefits for injured workers who cannot return to their pre-injury job.
Protection against lawsuits by injured employees that fall outside standard WC benefits — critical for contractors.
Options to include uninsured subcontractors under your policy — protecting you from uninsured sub exposure on your projects.
WC Class Codes
Class code accuracy directly determines your premium. We audit every account — incorrect codes are the most common reason contractors overpay.
| Code | Trade | Description | Risk |
|---|---|---|---|
| 5403 / 5432 | Carpentry | Framing, interior trim, doors and cabinet work; dual wage, $46/hr threshold | High |
| 5183(1) / 5187(1) | Plumbing | Plumbing installation, service and repair; dual wage, $35/hr threshold | Medium |
| 5190 / 5140 | Electrical Wiring | Wiring within buildings; dual wage, $40/hr threshold (5140 is the high-wage tier) | Medium |
| 5552 / 5553 | Roofing | All roofing and waterproofing; dual wage, $33/hr threshold | High |
| 5027 / 5028 | Masonry | Brick, block and stone work; dual wage, $37/hr threshold | High |
| 5201 / 5205 | Concrete (flatwork) | Pouring and finishing slabs, sidewalks and driveways; dual wage, $36/hr threshold | High |
| 5538 / 5542 | HVAC Ductwork / Sheet Metal | Duct and sheet metal installation or repair; dual wage, $37/hr threshold | Medium |
| 6218(1) / 6220(1) | Excavation | Excavation, grading and backfill, N.O.C.; dual wage, $45/hr threshold | High |
| 5446 / 5447 | Wallboard / Drywall | Drywall hanging and finishing; dual wage, $45/hr threshold | Medium |
| 5474 / 5482 | Painting | Painting and wallpaper installation; dual wage, $36/hr threshold | Medium |
| 5606 | GC - Supervisors / PM | Construction executive supervisors with no direct labor (5610 when all work is subcontracted) | Lower |
Dual-wage trades list the low-wage code first and the high-wage code second. The high-wage code applies to employees paid at or above the listed hourly threshold and usually carries a lower rate, so accurate payroll-by-employee tracking is essential at audit.
Premium Reduction
Many contractors are assigned to higher-rated class codes than their actual work warrants. A code audit often reveals immediate savings — especially for GCs with multiple trade exposures.
Carriers reward contractors with documented safety programs, regular toolbox talks, and OSHA compliance with lower rates. A written program can reduce your X-Mod over time.
Early return-to-work programs and proactive claims management reduce the cost of open claims — which directly lowers your X-Mod at the next calculation date.
Uninsured subcontractors can be assigned to your payroll during an audit, dramatically increasing your premium. Always collect current certificates before work begins.
FAQ
If your subcontractors are uninsured, California law may treat them as your employees for WC purposes — meaning their injuries could become your liability. Even if you have no direct employees, you should verify every subcontractor's WC coverage and collect current certificates before work begins. Wellington Partners Insurance Services can help you set up a certificate tracking system.
The CSLB receives automatic notification from your carrier if your WC policy cancels or lapses. Your contractor's license will be automatically suspended — often within 24 hours. This can disrupt active contracts, prevent you from pulling permits, and result in job stoppages. Wellington Partners Insurance Services sends renewal reminders starting 90 days out to prevent this from happening.
Most CA contractor WC policies are auditable — meaning your final premium is adjusted at year-end based on your actual payroll, not your estimate. We help you estimate payroll accurately upfront to avoid large audit bills, and work with carriers that offer flexible deposit structures for contractors with seasonal fluctuations.
Yes. Even contractors with elevated X-Mods (above 1.25) have market options in California. The State Compensation Insurance Fund (State Fund) is the carrier of last resort and must write coverage for all eligible CA employers. We also have access to specialty carriers that price high X-Mod accounts more competitively than the standard market.
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Yes. As of 2026 (Senate Bill 216), all licensed California contractors must carry workers' comp regardless of whether they have employees. The CSLB and DIR enforce this, and a lapse in coverage can suspend your license.
Contractor workers' comp is priced per $100 of payroll by trade class code, so a roofer pays far more than a lower-risk trade. Your X-Mod, claims history, and total payroll drive the final premium.
Yes. The Contractors State License Board requires active workers' comp for licensed contractors. Roofing (C-39) has long required it, and SB 216 extends the mandate to all licensed contractors as of 2026.
Keep your X-Mod low through safety and claims management, make sure your class codes are correct, separate clerical payroll where allowed, and work with a broker who markets your account to multiple carriers instead of defaulting to State Fund.