Best Plumber Insurance 2026

Water damage claims are the most expensive claims in home services. The right plumber insurance protects your license, your business, and your personal assets.

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Essential Coverage for Plumbers

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General Liability + Completed Operations — $1M minimum

Required

Covers property damage and bodily injury during and after your work. Completed operations is the most critical extension — it covers water damage claims that arise after you leave the job site. Most state plumbing licenses require proof of GL. Commercial and residential general contractors require it before allowing subs on site.

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Inland Marine (Tools & Equipment)

Highly Recommended

Covers pipe cameras, hydrojets, leak detection equipment, hand tools, and power tools from theft, damage, and loss at job sites and in your vehicle. Specialized plumbing equipment (camera inspection systems alone can cost $5,000–$15,000) is not covered by GL if stolen or damaged.

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Commercial Auto

Required

Covers your service vehicle and any equipment stored in it while driving to and from jobs. Personal auto policies exclude regular business use. If you are driving to an emergency plumbing call and cause an accident, your personal auto policy will deny the claim.

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Workers' Compensation

Required with employees

Required in most states with any employees. Plumbing involves physical risk: confined space entry, burns from soldering, ergonomic injuries from tight working positions, chemical exposure from drain cleaners. WC covers medical costs and lost wages for injured employees.

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Surety Bond

Required for license

Required by most states as a condition of plumbing contractor licensing. Protects clients from contractor default — does NOT protect you from claims. Bond cost: $100–$300/year for $10,000–$15,000 bond amounts. Required separately from your insurance.

Plumber Insurance Costs in 2026

Business TypeGL + Completed OpsToolsCommercial AutoMonthly Total
Solo plumber (residential)$70–$110/mo$15–$30/mo$100–$180/mo$185–$320/mo
Solo plumber (commercial)$90–$150/mo$25–$45/mo$120–$200/mo$235–$395/mo
Plumbing company (3–5 employees)$130–$220/mo$40–$80/mo$200–$400/mo$370–$700 + WC/mo
Plumbing contractor (10+ employees)$200–$350/mo$75–$150/mo$400–$800/mo$675–$1,300 + WC/mo

National averages. California plumbers pay 30–50% above average. WC adds $250–$700/month depending on payroll and state.

Plumber Insurance: Frequently Asked Questions

Frequently Asked Questions

Plumbers need general liability as the foundation — covering bodily injury and property damage including water damage from plumbing failures during and after your work. Completed operations coverage is critical for plumbers: it extends GL to cover claims that arise after you leave the job site — a pipe joint that fails two weeks later and floods a basement. Add inland marine for your tools and pipe cameras, commercial auto for your service vehicle, and workers' comp for employees. Many states also require a surety bond as a condition of your plumbing contractor license.

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