Workers Comp Class Code 5183 — Plumbing ContractorsCalifornia
Installation and repair of water supply, drainage, and gas piping systems in California residential and commercial buildings — licensed C-36 contractors.
How Have California Workers Comp Rates Changed Over the Last 5 Years?
Source: WCIRB pure premium rates. Actual carrier rates may vary significantly in California.
How Much Does California Workers Comp Cost for This Class Code?
⚠️ Pre-Underwriting Estimate: This is a preliminary estimate only. Final premium can change based on underwriting results, loss history, OSHA records, and carrier approval. CA rates vary significantly by carrier.
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What Jobs Are Covered Under This California Class Code?
- ▸ Plumber
- ▸ Pipefitter
- ▸ Plumbing apprentice
- ▸ Service plumber
- ▸ Gas line installer
What Are the Top Injury Risks for This California Class Code?
- ⚠ Burns from hot water and steam systems
- ⚠ Falls from ladders in tight mechanical spaces
- ⚠ Back injuries from confined-space work
- ⚠ Chemical exposure from flux and solvents
- ⚠ Gas line explosion risk
What Does a Real Workers Comp Claim Look Like for This California Class?
A plumber suffers severe burns while working on a steam system at a Sacramento hospital — second-degree burns to 30% of body surface area, skin grafting, and occupational therapy in California can total $180,000 or more. California's DWC medical fee schedule for burn treatment is among the highest in the nation, and hospital-based injuries frequently trigger lien claims that add 20–40% to total claim cost.
Why Does a PEO Make Sense for California Workers Comp in This Class?
California plumbing contractors holding a C-36 license often find that standard workers comp carriers require 3+ years of loss runs and a minimum premium of $10,000–$15,000 before offering coverage. PEO group programs accept new-venture plumbing contractors and those with prior losses, providing pay-as-you-go coverage that scales with actual project payroll rather than estimated annual wages.
CA Rate Context
At $5.63/100, California plumbing rates are moderate but reflect the state's elevated medical cost environment — the average plumbing injury claim in California costs 35% more than the same injury in Texas or Florida. WCIRB's pure premium also accounts for California's mandatory 104-week temporary disability cap (extended to 240 weeks for severe injuries), which significantly increases loss development on complex plumbing injuries.