Plumbers Insurance
Plumbing
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How much does plumbing insurance cost?

Plumbers' insurance costs depend on the type of insurance, coverage limits, deductibles, and factors such as your business's location and number of employees. Save money on business insurance by comparing quotes from different providers with Insureon.

Top plumbers' insurance policies and their cost

Here are the top business insurance policies for plumbers and their average monthly cost:

Our figures are sourced from the median cost of policies for plumbing contractors who apply for quotes with Insureon. The median offers a better estimate of what your business is likely to pay because it excludes outlier high and low premiums.

General liability insurance icon

General liability insurance

Plumbing businesses and contractors pay an average of $115 per month, or $1,378 per year, for general liability insurance. Some plumbers need proof of insurance for this policy to sign a commercial lease or a client contract.

A general liability policy can pay for medical expenses from accidents, such as a customer who trips over your toolbox and suffers an injury. It can also cover costs if someone sues your business over a bodily injury, property damage, or advertising injury.

This is the average policy for plumbing contractors who buy from Insureon:

Premium: $115 per month
Policy limits: $1 million per occurrence; $2 million aggregate
Deductible: $500

The cost of a general liability insurance policy depends on factors such as the coverage limits you choose, the size of your business, the amount of foot traffic you have, and any subcontractors or additional insured endorsements.

Learn more about how your premium is calculated and how to save money on your general liability policy.

Business owner’s policy icon

Business owner's policy

Plumbing businesses and contractors pay an average of $166 per month for a business owner's policy, or $1,992 annually. Only small, low-risk businesses are eligible for a BOP.

A BOP is an insurance package that bundles two important types of coverage at a discount. It includes general liability coverage to protect against common lawsuits, and commercial property insurance to cover stolen or damaged business property.

This is the average business owner's policy for a plumber who buys from Insureon:

Premium: $166 per month
Policy limits: $1 million per occurrence; $2 million aggregate
Deductible: $1,000

The cost of a business owner's policy depends on factors such as the insurance options you choose, the size of your business, the amount of foot traffic you have, and the value of your business property.

Workers’ compensation insurance icon

Workers' compensation insurance

Plumbers pay an average of $195 per month for workers’ compensation insurance, or $2,337 annually.

Workers' comp helps pay for medical costs from work-related injuries and illnesses. Most policies include employer's liability insurance, which covers the cost of lawsuits related to workplace injuries.

There's usually no limit to how much a workers' comp policy can pay for employee benefits, though it depends on state laws.

The cost of a workers' compensation policy depends on factors such as the number of employees you have and the type of work they do. Learn more about how workers' comp costs are calculated and how to save money on your policy.

Commercial auto insurance icon

Commercial auto insurance

Plumbers pay an average of $225 per month, or $2,704 per year, for commercial auto insurance.

Most states require this coverage for vehicles owned by a business. For personal, rented, and leased vehicles used by your business, look to hired and non-owned auto insurance (HNOA) instead.

Commercial auto insurance covers financial losses in the event of an accident involving your business vehicle. It can help pay for property damage, medical bills, and legal costs. When buying a policy, you'll need to make sure your coverage limits match the requirements in your state.

The cost of a commercial auto policy depends on your coverage needs, the value of the vehicle, and your insurance claims history. Learn how insurers calculate your premium and how to save money on your commercial auto policy.

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Contractor’s tools and equipment insurance

Plumbers pay an average of $19 per month for contractor’s tools and equipment insurance, or $224 annually.

A form of inland marine insurance, this policy covers your property whether it’s in your office, in transit, or at a jobsite. It can pay for lost, stolen, or damaged plumbing tools and equipment valued at $10,000 or less.

The cost of contractor's tools and equipment coverage depends on the value of your tools and equipment and the type of work you do.

Professional liability insurance icon

Professional liability insurance

Construction businesses and contractors pay an average of $74 per month, or $886 per year, for professional liability insurance. Plumbing businesses can often add this coverage to their general liability insurance for a discount, at an average rate of $112 monthly.

This plumber's liability insurance covers legal fees related to professional negligence, such as a newly installed water heater that doesn't match a customer's specifications. It's also called errors and omissions insurance (E&O).

This is the average insurance coverage for contractors who buy from Insureon:

Premium: $74 per month
Policy limits: $1 million per occurrence; $1 million aggregate
Deductible: $1,250

The cost of professional liability insurance depends on factors such as the coverage limits you choose, the size of your business, and your profession. Find out how insurers set professional liability premiums and how to save money on your policy. 

Umbrella / excess liability insurance icon

Commercial umbrella insurance

Plumbing businesses and contractors pay an average of $250 per month, or $3,000 annually, for commercial umbrella insurance. You can buy this policy to boost the limits of your underlying general liability, commercial auto, or employer's liability insurance.

When the underlying policy reaches its limit, commercial umbrella insurance activates to cover any costs over that limit.

The cost of commercial umbrella insurance depends primarily on the amount of coverage you purchase.

Surety bond icon

Surety bonds

Plumbing contractors and businesses pay an average of $8 per month, or $100 per year, for a surety bond.

A surety bond reimburses your client if you're unable to fulfill the terms of a contract or other agreement. You may need a surety bond to get a plumber's license for certain types of work.

The cost of a surety bond primarily depends on the size of the bond.

Key factors influencing policy costs

Your insurance provider calculates your plumbers insurance premiums based on several factors, including:

  • Types of coverage: Some policies are required to obtain certain contracting plumbing work or projects. These required policies are often needed to cover more expensive accidents and lawsuits, which tend to cost more than basic coverages.
  • Services offered: High-risk plumbing projects will have more costly premiums than low-risk projects, such as whether work is being performed for commercial office buildings rather than residential properties.
  • Business size: The more employees or subcontractors that are on staff, the more opportunities there are for accidents to happen or for potential damage to occur to someone else's property.
  • Annual revenue and payroll: The more your plumbing business makes in a year and the more you pay your employees or subcontractors, the higher your premium will cost. That’s because increased revenue and payroll mean a greater exposure to potential risks on the job.
  • Business equipment and assets: Higher-value items are more likely to result in more expensive premiums than lower-cost items. Items that are used more frequently also tend to cost more to cover than infrequently used items.
  • Years of experience: Plumbing contractors with more experience working in the field will tend to pay lower premiums than newer businesses due to lower associated risks.
  • Location: Plumbing businesses that perform work in areas prone to natural disasters, increased foot traffic, or high crime rates may have to pay more costly premiums than those with jobs located in areas where these factors are less present.
  • Coverage limits and deductibles: Higher coverage limits and lower deductibles will typically increase premium costs, while lower limits and a higher deductible can help keep insurance rates low.
  • Claims history: A plumber with a lengthy list of previous insurance claims will likely pay more for insurance than a company with no claims history.
  • Services offered: High-risk plumbing projects will have more costly premiums than low-risk projects, such as whether work is being performed for commercial office buildings rather than residential properties, or involves particularly complex or hazardous systems and environments.

How do I get plumbing contractors insurance?

Insureon can help you find affordable plumber's insurance coverage in three easy steps:

  1. Fill out an easy online application with details about your plumbing company.
  2. Compare free quotes from top-rated U.S. providers.
  3. Select a policy and pay the premium to begin coverage.

A licensed agent will help make sure your insurance matches your business risks, budget, and state requirements. Once you've bought a policy, you can download a certificate of insurance (COI) for proof of coverage. Most small businesses can get covered within 24 hours of applying for quotes.

What our customers are saying

Updated: October 20, 2025
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