High payroll. Complex class codes. CSLB compliance requirements. Wellington Partners 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 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 |
|---|---|---|---|
| 5645 | Carpentry / Framing | Residential framing and wood frame construction | High |
| 5183 | Plumbing | Plumbing installation — residential and commercial | High |
| 5190 | Electrical Wiring | Electrical installation — all building types | High |
| 5551 | Roofing | All roofing operations — highest exposure trade class | High |
| 5022 | Masonry | Brick, block, stone, and concrete masonry work | High |
| 5213 | Concrete Work | Concrete paving, flatwork, and structural pours | Medium |
| 5537 | HVAC | Heating, ventilation, and air conditioning installation | Medium |
| 6217 | Excavation | Grading, grubbing, and excavation operations | High |
| 5160 | Demolition | Building and structure demolition work | High |
| 8227 | GC — Residential | General contractor — new residential construction | Medium |
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 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 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.
No obligation. A full market comparison for your California contracting business delivered in 48 hours.
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