This site has workers comp pages for 21 contractor trades in California, Arizona and Nevada, grouped below into building, mechanical and site work. Find your trade below: each hub compares the three states, and most link to a California page with the published classifications, premium drivers and audit records for that trade.
On This Page
Find Your Trade
Building trades. Crews that put up and finish the structure.
Whatever the trade, workers compensation insurance for contractors is priced on payroll sorted into classifications, then checked at audit. The questions that move the bill repeat from trade to trade: which side of a wage line each worker falls on, whether the owners are on the policy, and whether every sub you paid can show coverage of its own.
California ties coverage to the contractor license. A licensee needs a policy once it hires anyone, and the exemption for licensees without employees is scheduled to end on January 1, 2028. The California contractor workers comp rules page has the full list.
Arizona can treat a contractor as the employer of a sub's workers when the work is part of its trade and it keeps supervision or control. See the Arizona statutory employer rule.
Nevada calls the coverage industrial insurance, treats a principal contractor's subs as its employees and counts each employee's pay up to a per-employee limit. See the Nevada contractor workers comp rules.
Contractor payroll rarely stays where the estimate put it. A bigger job, a new crew or a sub without a certificate can turn the year-end audit into a bill you didn't plan for.
Monthly Payroll ReportingReport field payroll as it happens, so premium follows the work through the year.
Pay-As-You-GoPremium figured from each payroll period, where a carrier offers it for your trade.
Certificates Before the JobCollect each sub's certificate before work starts; the uninsured subcontractor guide shows what an audit can charge.
Duties by ClassificationKeep hours split the way the published classifications describe each kind of work.
Mid-Term UpdatesTell the carrier when payroll jumps, so the estimate keeps up with your backlog.
The premium audit guide covers the records an auditor typically asks for and how to dispute a bill.
When a Contractor Should Take a Second Look
The Renewal Went Up AgainCompare carriers that write your trade and check whether the price reflects your work and your losses.See rate changes in each state
A Carrier NonrenewalLine up replacement coverage before the current policy ends, so no job runs uninsured.Talk to a broker before it lapses
A New Contract or StateContract terms and state rules can change what the policy needs to show.Compare the three states
Slow Claims ServiceCompare adjuster access, medical management and defense counsel before the next injury.
Classifications Across the Trades
In California, the WCIRB publishes classifications that mention each trade's work, and several trades, from carpentry and wallboard to electrical, plumbing and concrete, are split by hourly wage. A contractor whose crews do more than one kind of work may report more than one classification. In Arizona and Nevada, NCCI's system applies instead, and no California code transfers. The WCIRB class codes for contractors list shows each trade's published classifications, and Crown Your Crew lays out your crew class by class from your current codes. Classification depends on actual duties and the carrier's determination.
Before You Request a Quote
Have your payroll by trade, your renewal month, your owners' roles and a list of the subs you paid. If last year's audit brought a surprise, the what happens at a premium audit guide explains how to review it. Then get a workers comp quote for contractors; a broker reviews every request.
My company does more than one trade. Which trade page should I read?
A1
Start with the trade that carries most of your field payroll, then read the hub for any other work your crews do. Payroll is often split across more than one classification when the work is separate and records support it, and the carrier makes the final determination.
Q2
Do subcontractors need their own workers comp?
A2
Each state treats an uncovered sub differently. California presumes unlicensed help on licensed work is your employee, Arizona may count a sub's crew on your policy when the work is within your trade and under your control, and Nevada treats subs as employees of the principal contractor. A current certificate from each sub helps at audit. The guide to workers compensation insurance and independent contractors walks through each state.
Q3
Do the trade pages explain Arizona and Nevada too?
A3
Yes. Each trade hub explains how its trade is handled in Arizona and Nevada next to California, including the license class where it is verified and the state rule that matters most. The state pages go deeper into each state's owner, payroll and contractor rules.
Q4
Does every workers comp policy include legal defense?
A4
The carrier generally handles covered workers comp claims and may provide defense through counsel it appoints for certain proceedings. The scope depends on the policy, the law and the dispute. It doesn't necessarily include an attorney for unrelated employment or regulatory matters.
Q5
Should a contractor change carriers in the middle of a policy for a lower rate?
A5
Not without checking the cost first. Canceling mid-term can bring a cancellation charge, the old policy still gets a final audit, and certificates on active jobs need updating. A broker can compare the new premium against those costs before you decide.
Q6
What is the best workers comp insurance for small business owners in the trades?
A6
There isn't one best policy for every small contractor. The better fit is usually a carrier rated A- or better by AM Best that writes your trade's classifications in your state, offers the payroll reporting and payment options you need, and handles claims the way you expect. Workmans comp for contractors is also settled at audit, so clean payroll records and sub certificates can matter as much as the rate. Compare workers comp insurance quotes side by side, or call to talk it through.