plumber insurance cost is one of the first real numbers a new or growing plumbing business has to plan for. In most cases, a solo plumber pays far less than a shop with a crew, a few vans, and big commercial contracts. Still, the price can surprise owners who only budgeted for a license and tools.
Many general contractors and property managers won’t let you on a job without proof of coverage. Some states also require workers’ comp once you hire. This guide breaks down typical monthly premiums, what drives them up or down, and how to shop without overpaying for coverage you don’t need.
What Plumber Insurance Cost Looks Like in 2026
Insureon publishes some of the most widely cited small-business premium data. For plumbers, its median general liability premium is about $115 per month, or $1,378 per year. That price is based on a common policy with a $1 million per-occurrence limit and a $2 million aggregate limit. General liability pays when you damage a customer’s property or someone gets hurt because of your work. For example, it may respond if a fitting you installed leaks and ruins a finished basement.
However, general liability is only one piece. Many plumbing businesses also carry a business owner’s policy (BOP). A BOP bundles general liability with commercial property coverage, usually at a discount. Insureon puts the plumber BOP average at about $166 per month. Workers’ comp averages about $195 per month for plumbers who have employees. As a result, your total plumber insurance cost depends heavily on which policies you actually need.
Other sources run higher or lower. Next Insurance reports general liability averaging about $76 per month across its plumbing customers. MoneyGeek’s model for a two-employee shop puts general liability near $363 per month. The gap comes down to payroll, revenue, state, and claims history.
The Exact Figures and What Drives Them
The table below shows typical monthly premiums for common plumber policies. Treat these as starting points, not quotes. Your own plumber insurance cost could land well above or below these numbers.
| Policy | Typical Monthly Cost | Typical Annual Cost | What It Covers |
|---|---|---|---|
| General liability | $115 | $1,378 | Customer injuries and property damage |
| Business owner’s policy (BOP) | $166 | $1,992 | Liability plus your shop and equipment |
| Workers’ compensation | $195 | $2,337 | Employee injuries and lost wages |
| Commercial auto | About $225 | About $2,704 | Work vans and trucks |
Workers’ comp is priced per $100 of payroll. Plumbing generally falls under NCCI class code 5183. One industry estimate puts the typical 5183 rate near $2.19 per $100 of payroll. For example, a $60,000 payroll at that rate is about $1,314 per year before other factors. Rates also vary widely by state. The same estimate ranges from about $1.17 in West Virginia to $8.92 in New York.
Your experience mod also matters. An experience mod is a score based on your past injury claims compared with similar businesses. A mod below 1.0 lowers your premium. A mod above 1.0 raises it. In addition, four states are “monopolistic.” That means you must buy workers’ comp from the state fund, not a private carrier. Those states are Ohio, Washington, Wyoming, and North Dakota.
State rules on who must carry workers’ comp differ, too. Florida generally requires construction businesses to carry it with just one employee. Georgia and North Carolina typically require it at three or more employees. Texas is unusual because most private employers may opt out. Confirm your state’s current rule with its workers’ comp board.
How to Lower Your Plumber Insurance Cost Without Cutting Corners
Start by listing what you are actually required to carry. Check three places: your state contractor-licensing board, your state workers’ comp division, and the contracts you sign. Many plumbing licenses require proof of general liability, and some require a license bond. Meanwhile, general contractors often require you to name them as an “additional insured.” That simply means your policy also protects them on that job.
Next, get at least three quotes with the same limits and deductibles. Otherwise, you are comparing apples to oranges. Ask each agent to break out the plumber insurance cost by policy, not just one bundled number. Typically, a BOP is cheaper than buying liability and property separately. However, a BOP may not fit if you rent no space and keep your tools in the van.
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Finally, protect your record. Fewer claims mean a lower experience mod and better renewal pricing. Simple safety training, trench and confined-space rules, and safe-driving policies for van drivers all help. In most cases, paying the annual premium up front also avoids monthly installment fees. Request certificates of insurance (COIs) early, too. Many carriers issue them online the same day, while some take a business day or two.
Frequently Asked Questions
How much does insurance cost for a self-employed plumber?
A solo plumber with no employees often needs only general liability and commercial auto. As a result, many solo owners pay roughly $70 to $200 per month for liability alone. Your state, revenue, and claims history will move that number.
Do plumbers need workers’ comp if they have no employees?
In most cases, sole proprietors with no employees are not required to carry it. However, some general contractors still ask for it before you start a job. Rules vary by state, so confirm with your state workers’ comp division.
Why is my plumber insurance cost higher than the averages?
Typically, higher quotes come from larger payroll, more vehicles, past claims, or a high-cost state like New York. Commercial jobs and new-construction work can also raise your premium. Ask your agent which factor is driving your price.
Find Where You Stand
Your real price depends on your trade, your state, your revenue, and your claims history. Get a neutral estimate first — no email, no quote gate — then compare quotes when you are ready.
Sources & How to Verify
This guide is built from official government and industry sources. Insurance requirements, premiums, and state rules change, so always confirm the exact figure with your state, a licensed agent, or the authority source:
- U.S. Small Business Administration: sba.gov — federal small-business insurance guidance
- Insurance Information Institute: iii.org — neutral premium and coverage data
- NAIC: naic.org — state insurance regulation data
- U.S. Department of Labor: dol.gov — workers’ compensation overview
- Your state DOI, workers’ comp board, DMV/DOT, and contractor-licensing board for the exact current requirement and figures.
Verified October 2026. Insurance figures change — if you spot anything outdated, please contact us.
Related Guides
- Business Insurance by Profession
- Workers’ Comp Requirements by State
- Business Insurance Requirements by State
- What Business Insurance Really Costs
- Plain-English Business Insurance Glossary
Disclaimer. This page is for general information only and is not insurance, legal, or tax advice. Business Insure Guide is an independent educational resource, not an insurance agency, carrier, law firm, or tax advisor. Coverage needs, requirements, premiums, and rules vary by business, profession, and state, and change over time. For your specific situation, verify the exact coverage, requirement, and price with a licensed insurance agent and your state before you buy.