Plumber Insurance Cost: What You'll Pay in 2026

Plumber insurance starts at $75/month for general liability in Texas. Learn what each coverage line costs, what raises the price, and how to compare quotes from carriers that insure plumbing work.

Annual premium by payroll

Solo, no employees ★

$1M GL: $450–$900/yr
$2M GL: $900–$1,800/yr
+ WC: N/A (no employees)
+ Tools: $150–$400/yr

$100K–$250K payroll

$1M GL: $1,200–$2,800/yr
$2M GL: $2,400–$5,600/yr
+ WC: $3,500–$8,000/yr
+ Tools: $300–$800/yr

$250K–$500K payroll

$1M GL: $2,500–$5,000/yr
$2M GL: $5,000–$10,000/yr
+ WC: $8,000–$18,000/yr
+ Tools: $500–$1,200/yr

$500K+ payroll

$1M GL: $4,500–$9,000/yr
$2M GL: $9,000–$18,000/yr
+ WC: $15,000–$35,000/yr
+ Tools: $800–$2,000/yr

Payroll band	$1M GL	$2M GL	+ WC	+ Tools
Solo, no employees ★	$450–$900/yr	$900–$1,800/yr	N/A (no employees)	$150–$400/yr
$100K–$250K payroll	$1,200–$2,800/yr	$2,400–$5,600/yr	$3,500–$8,000/yr	$300–$800/yr
$250K–$500K payroll	$2,500–$5,000/yr	$5,000–$10,000/yr	$8,000–$18,000/yr	$500–$1,200/yr
$500K+ payroll	$4,500–$9,000/yr	$9,000–$18,000/yr	$15,000–$35,000/yr	$800–$2,000/yr

NEXT Insurance, plumber insurance cost page (2025) ★ = most common range for this trade.

What drives plumber insurance cost

Work type

Residential service plumbing is lower risk than commercial construction, institutional piping, or sewer and drain work. Higher property values and occupied buildings increase claim severity.

Payroll and crew size

Workers comp is rated per $100 of payroll. More employees mean more premium. GL can also increase with revenue and crew size.

Vehicles

A personal truck used occasionally is different from a fleet of lettered vans. Commercial auto is priced on vehicle count, driver records, and radius.

Claims history

Prior water-damage, construction-defect, or employee-injury claims raise premiums and can limit which carriers will quote.

Contract requirements

Commercial and institutional contracts often require umbrella limits, additional insured, waiver of subrogation, and primary/noncontributory wording — each adds cost.

Key Takeaways

Plumber general liability starts at $75/month for a small business in Texas, but most plumbing shops pay more once they add workers comp, commercial auto, tools coverage, and the endorsements commercial contracts require.

GL starting price: $75/month (NEXT, Texas minimum premium) or $37.50/month (Hiscox, limited detail on size and state)
Workers comp, commercial auto, tools, and umbrella are separate policies priced on payroll, vehicles, equipment value, and contract limits
Commercial contracts can require $5M–$10M umbrella, additional insured, waiver of subrogation, and primary/noncontributory wording — each adds cost
A single water-damage claim can exceed several years of GL premium, which is why carriers ask about work type and claims history

What plumber general liability insurance costs right now

General liability is the first policy most plumbers buy. It covers third-party bodily injury and property damage claims — the kind that happen when a connection fails and water floods a customer's finished basement.

The lowest published starting price comes from NEXT Insurance: plumber insurance can cost as little as $75 per month, based on the general liability minimum premium for plumber businesses in Texas. Hiscox publishes a lower figure — from $37.50 per month — but provides less detail on the size, state, or coverage basis behind that number.

$75/mo

GL starting price (NEXT)

Texas, minimum premium, small business

$37.50/mo

GL starting price (Hiscox)

Limited size and state detail

$900–$5,000+/yr

Typical GL range

Varies by revenue, work type, state

Both figures are GL-only starting prices. They do not include workers comp, commercial auto, tools coverage, umbrella, or the endorsements that commercial contracts require. A plumbing shop with employees, vehicles, and commercial contract work will pay significantly more than either starting price.

Why the starting price is not your quote

The $75/month figure assumes a small plumbing business in Texas buying a minimum-premium GL policy. Your quote will be higher if you have more revenue, employees, vehicles, prior claims, or if you work in a state with higher base rates. It will also be higher if you need limits above $1M per occurrence and $2M aggregate.

Most plumbing businesses need more than GL. The total annual cost depends on how many coverage lines you carry and what limits your contracts require. The next section breaks down each line separately.

Your premium depends on payroll, trade scope, state, limits, vehicles, and claim history. Enter your business details to compare quotes from carriers that write your work.

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Coverage lines most plumbers need and what each one costs

Plumber insurance is not one product. It is a set of separate policies, each priced on different rating factors. Which lines you need depends on whether you have employees, own vehicles, carry expensive tools, or work under commercial contracts.

Answer a few questions about your business and see which coverage lines apply to your situation.

Plumber Coverage Needs Guide

Answer a few plumbing business questions to see which insurance lines to quote first.

Step 1

Do you have W-2 plumbing employees?

General liability

General liability covers third-party bodily injury and property damage. For plumbers, the most common claims involve water damage to customer property, slip-and-fall injuries at job sites, and damage from dropped tools or equipment.

GL is priced primarily on revenue, work type, claims history, and state. Residential service plumbing is generally less expensive to insure than commercial construction or institutional work.

Workers compensation

Workers comp is required in most states when you have employees. The premium is calculated per $100 of payroll using a class code assigned to plumbing work. A shop with three journeymen at the national mean wage of about $70,600 per year is putting over $210,000 in payroll into the rating formula.

Your experience modification rating also affects the premium. A clean claims history lowers it. Prior employee injuries raise it.

Commercial auto

If your business owns work vehicles, you need commercial auto insurance. Personal auto policies typically exclude business use. If employees drive their own cars to job sites, you need hired and non-owned auto coverage instead.

Commercial auto is priced on vehicle count, vehicle type, driver records, travel radius, and state. Public contracts may require $1,000,000 in business auto liability.

Tools and equipment

Plumbers carry portable tools, drain-cleaning equipment, cameras, and testing instruments between job sites. An inland marine or tools and equipment policy covers theft, damage, and loss of these items. Standard property policies often exclude tools in transit or at job sites.

Umbrella and excess liability

An umbrella policy adds limits above your GL, commercial auto, and employers liability. Most small residential plumbers do not need one. But commercial and institutional contracts frequently require $5M or $10M in umbrella coverage above the primary policies.

Estimated annual cost by coverage line for plumbing businesses

Coverage line

General liability

Priced on

Revenue, work type, claims, state

Typical annual range

$900–$5,000+

Coverage line

Workers compensation

Priced on

Payroll, class code, EMR, state

Typical annual range

$3,500–$35,000+

Coverage line

Commercial auto

Priced on

Vehicles, drivers, radius, state

Typical annual range

$1,200–$4,500+

Coverage line

Tools & equipment

Priced on

Total insured value

Typical annual range

$150–$2,000

Coverage line

Umbrella ($1M)

Priced on

Underlying limits, work type

Typical annual range

$800–$3,000

Coverage line	Priced on	Typical annual range
General liability	Revenue, work type, claims, state	$900–$5,000+
Workers compensation	Payroll, class code, EMR, state	$3,500–$35,000+
Commercial auto	Vehicles, drivers, radius, state	$1,200–$4,500+
Tools & equipment	Total insured value	$150–$2,000
Umbrella ($1M)	Underlying limits, work type	$800–$3,000

Ranges reflect small to mid-size plumbing businesses. Actual premiums depend on individual underwriting.

How carriers price a plumbing insurance account

Carriers do not charge every plumber the same rate. They ask about specific business details and use those details to decide whether to quote, what to charge, and what to exclude.

Here are the details that have the most effect on your premium.

Work type and mix

Residential service plumbing — fixing leaks, replacing fixtures, clearing drains — is lower risk than commercial new construction, institutional piping, or industrial process work. Higher property values and occupied buildings increase the severity of a water-damage or bodily-injury claim.

Carriers ask whether you do residential, commercial, or both. They also ask about specific work: sewer and drain, gas piping, fire suppression, hydronic heating, and design-build. Each category carries different exposure.

Payroll and crew size

Workers comp is rated per $100 of payroll. More employees at higher wages mean more premium. BLS data shows the national mean annual wage for plumbers, pipefitters, and steamfitters is about $70,600. A five-person crew at that wage puts roughly $353,000 into the workers comp rating formula each year.

Claims history and water-damage exposure

Plumbing work creates property-damage exposure that most other trades do not have. A failed connection, a leaking fixture, or an incorrectly installed drain can cause water damage to finished interiors, adjacent units, or lower floors.

Construction-defect claims can raise premiums sharply

In Florida, Insurance Journal reported a committee-hearing example where one contractor's premiums rose from $2,500/year to almost $12,000/year in under two years due to construction-defect subrogation pressure. Plumbers are among the trades named in these claims.

Prior water-damage claims, construction-defect claims, auto accidents, and employee injuries all affect your premium and which carriers will insure your business.

State and geography

Workers comp rates, GL base rates, and auto rates vary by state. The $75/month GL starting price is specifically for Texas. States with higher litigation costs, stricter workers comp rules, or more expensive construction markets will produce higher quotes.

Work type

Residential service vs commercial construction vs institutional. Higher property values and occupied buildings raise claim severity.

Payroll

Workers comp scales directly with payroll. More employees at higher wages mean more premium.

Vehicles

Vehicle count, type, driver records, and travel radius. Fleet size drives commercial auto cost.

Claims history

Prior water-damage, defect, auto, or injury claims raise premiums and limit carrier options.

How commercial contracts push your limits and cost higher

A basic GL policy with $1M per occurrence and $2M aggregate satisfies many small residential jobs. But commercial and institutional contracts often require limits and endorsements well above that baseline.

Here is one real public-owner template showing how requirements scale with project size.

How contract size drives required limits

Contract size

Up to $1,000,000

CGL required

$1M occ / $2M agg

Umbrella required

None

Auto required

$1M each occurrence

Contract size

$1,000,001–$5,000,000

CGL required

$1M occ / $2M agg

Umbrella required

$5M excess/umbrella Common GC ask

Auto required

$1M each occurrence

Contract size

Over $5,000,000

CGL required

$1M occ / $2M agg

Umbrella required

$10M excess/umbrella Institutional

Auto required

$1M each occurrence

Contract size	CGL required	Umbrella required	Auto required
Up to $1,000,000	$1M occ / $2M agg	None	$1M each occurrence
$1,000,001–$5,000,000	$1M occ / $2M agg	$5M excess/umbrella Common GC ask	$1M each occurrence
Over $5,000,000	$1M occ / $2M agg	$10M excess/umbrella Institutional	$1M each occurrence

UNLV contractor insurance requirements (public-owner template)

The same contracts typically require workers compensation at statutory limits with employers liability of at least $100,000 per occurrence.

Endorsements that contracts require

Beyond limits, commercial contracts ask for specific endorsement wording on your GL policy. The three most common requests for plumbing subcontractors:

Additional insured — names the GC or owner on your policy for both ongoing operations and completed operations. ISO forms CG 20 10 and CG 20 37 handle these two timing concepts separately.
Primary and noncontributory — requires your policy to pay first without seeking contribution from the hiring party's own insurance.
Waiver of subrogation — your insurer agrees not to recover from the hiring party after paying a claim on your behalf. Parties in whose favor you waive recovery may want written evidence from your insurer.

A certificate alone may not satisfy the contract

A certificate of insurance shows your limits, but it does not prove you have the required endorsement wording. If your policy does not include additional insured, waiver of subrogation, or primary/noncontributory language, the hiring party can reject your certificate and hold your payment until you fix it.

Use the checklist below to compare what your contract requires against what your current policy includes.

Plumber Insurance Cost Checklist

Check limits and endorsements before sending a plumbing certificate.

Business name

Contact name

State

Client or GC

Job name

Contract type

Project tier

COI due date

Checklist

Download checklist

Available as PDF, DOCX.

Download

Document preview

Open to inspect the generated file content.

Download checklist

Job summary

Plumber insurance requirements checklist Business: ________________ Contact: ________________ State: ________________ Client or GC: ________________ Job: ________________ Contract type: ________________ Project tier: ________________ Certificate due date: ________________ Use this checklist to compare the written contract, your current policy, and the certificate request before sending a certificate. Contract terms vary by customer, state, project size, carrier, and job scope.

Coverage limits to verify

Coverage line | Contract example to check | Current status / notes --- | --- | --- Commercial general liability | For construction contracts up to $1,000,000, one public institution template lists $1,000,000 per occurrence and $2,000,000 aggregate. | Commercial general liability | For construction contracts from $1,000,001 to $5,000,000, the same template lists $1,000,000 per occurrence and $2,000,000 aggregate plus excess or umbrella. | Commercial general liability | For construction contracts over $5,000,000, the same template lists $1,000,000 per occurrence and $2,000,000 aggregate plus higher excess or umbrella. | Excess or umbrella | Check whether the contract requires no umbrella, $5,000,000 excess or umbrella, or $10,000,000 excess or umbrella. | Business auto | One public institution template lists $1,000,000 each occurrence for owned, hired, and non-owned vehicles. | Workers compensation | Check for statutory workers compensation and employers liability requirements if employees are involved. | Tools and equipment | Confirm whether the job requires proof of inland marine or equipment coverage for portable plumbing tools and materials. | Professional liability | Review if design, consulting, specifications, or design-build duties are part of the plumbing scope. | Pollution liability | Review only if the contract or job scope involves contamination, pollutant release, cleanup, sewer, waste, or environmental exposure. |

Endorsements to verify

Requirement | What to verify before issuing the certificate | Current status / notes --- | --- | --- Additional insured for ongoing operations | Confirm whether the GC, owner, landlord, or institution must be added for ongoing operations. | Additional insured for completed operations | Confirm whether completed operations coverage is required after the plumbing work is finished. | CG 20 10 | Check whether the contract requests this additional insured form or equivalent wording. | CG 20 37 | Check whether the contract requests this completed operations form or equivalent wording. | Primary and noncontributory | Confirm whether your policy must respond first without seeking contribution from the certificate holder's policy. | Waiver of subrogation | Confirm whether the insurer must waive recovery rights against the GC, owner, or other named party. | Blanket versus scheduled status | Ask your agent whether endorsements apply automatically by written contract or must list this specific client. | Completed operations duration | Check if the contract requires coverage to remain in force after project completion. |

Certificate holder fields

Before sending the certificate, copy the exact certificate holder wording from the contract or client request. Certificate holder legal name: ______________________________ Mailing address: ___________________________________________ Project name or number: ________________ Additional insured parties to list: _________________________ Required description wording: ______________________________ Email or portal for delivery: ______________________________ Requested delivery date: ________________ Do not rely on a certificate alone if the contract requires endorsements. Ask for endorsement copies when the client requires specific additional insured, waiver, or primary and noncontributory wording.

Final review before sending

Review item | Done | Notes --- | --- | --- The contract insurance exhibit has been compared against the current policies. | ☐ | Limits match the contract tier or the client approved different limits in writing. | ☐ | The certificate holder name and address match the request exactly. | ☐ | Additional insured requirements have been reviewed for ongoing and completed operations. | ☐ | Waiver of subrogation requirements have been reviewed with the agent or carrier. | ☐ | Primary and noncontributory wording has been confirmed if required. | ☐ | Auto and workers compensation requirements have been checked if vehicles or employees are involved. | ☐ | Copies of required endorsements have been requested when the certificate alone is not enough. | ☐ |

Next steps

Send the checklist and contract insurance exhibit to your agent before requesting the COI.
Ask whether endorsements are blanket or must name this client and project.
Compare quotes if the contract requires umbrella, auto, workers comp, or special endorsements.

Not sure which coverages you actually need? Answer a few questions and compare a coverage plan built for your trade, employees, contracts, and vehicles.

or call (888) 698-7698

Free. No obligation. Takes 2 minutes.

Free quotes from 400+ carriers · Licensed in 22 states · No fees to compare

How a single water-damage claim can exceed a year of premium

Plumbing work creates property-damage exposure that other trades do not have. A single leak behind a finished wall can generate a claim larger than several years of GL premium.

Claim

Failed supply connection floods a finished medical office

A plumber reconnects a supply line during a tenant improvement in a medical office. The fitting fails overnight. Water runs for 8 hours before anyone discovers it.

What happened: The flood damages flooring, drywall, cabinetry, medical equipment, and the suite below. Total third-party property damage: $85,000. The medical practice also claims lost revenue for two days of closure.

Coverage: The plumber's GL policy covers the third-party property damage to the office and equipment. The cost to redo the plumber's own defective work — removing and replacing the failed fitting and damaged pipe — is excluded.

$85,000+

A plumbing company can be liable for water damage when its work causes an accident, incorrect installation, poor workmanship, or leaking fixtures that damage surrounding property.

Construction-defect subrogation adds another layer. In states with active construction-defect litigation, plumbers can be pulled into claims filed against general contractors or developers years after the work is complete. Completed-operations coverage applies to claims that arise after the job is done. If your policy does not include it, you have a gap.

What GL typically excludes

The cost to redo your own defective work (faulty workmanship exclusion)
Damage to property in your care, custody, or control (unless you add coverage)
Intentional acts or work you knew was defective
Pollution or contamination (usually requires a separate pollution liability policy)

Don't find out you have a coverage gap from a denied claim. A quick policy review catches gaps like the one above before they cost you.

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Ways to lower your plumber insurance cost

You can influence what carriers charge. These steps have the most direct effect on plumber insurance premiums.

Cost reduction checklist for plumbers

Shop your renewal with multiple carriers

Do not auto-renew without comparing. Carriers compete for plumbing accounts, and pricing varies by carrier appetite and your current loss history.

Raise deductibles where cash flow allows

A higher deductible lowers your premium. Make sure you can cover the deductible out of pocket if a claim happens.

Audit your class code for accuracy

If your work mix has changed — for example, you stopped doing commercial construction and now do residential service only — your class code may be wrong. The wrong code can overprice your policy.

Document safety practices and manage claims

PHCC identifies jobsite awareness, PPE, equipment maintenance, and fleet safety as risk-management priorities for plumbing contractors. Carriers evaluate how you manage jobs, vehicles, and employees.

Bundle coverages when pricing allows

Some carriers offer better pricing when you package GL with property coverage in a BOP, or when you place multiple lines with one carrier.

Source: PHCC safety and risk management guidance (2025)

Carriers do not only price the trade label. They also evaluate how the business manages jobs, vehicles, equipment, employees, and records. A clean claims history and documented safety program can keep your premiums lower over time.

Compare carriers that insure plumbing work like yours

Plumbing is an actively written contractor class. Multiple carriers and programs compete for this work, including small-business markets, specialty programs, and standard carriers.

The marketplace compares your account with carriers from 400+ options that insure plumbing work. Licensed support is available in 22 states for accounts that need review.

400+

Carrier and market options

Plumbing is actively written across markets

22 states

Licensed support available

Real human risk advisors when needed

2 minutes

Form completion time

One form, multiple carrier options

You enter your trade, state, payroll, work type, and vehicle count. The marketplace compares your application with carriers that insure plumbing work for your specific situation. You compare options side by side.

For complex accounts — multiple locations, large payrolls, unusual work types, or contract questions — call (888) 698-7698 to talk with a licensed representative. Free, no obligation.

Carriers compete to get the best pricing for your account. Get free quotes and compare what comes back before you bind or renew.

Frequently asked questions

How much does plumber general liability insurance cost?

Published starting prices range from $37.50/month (Hiscox) to $75/month (NEXT, based on a Texas minimum-premium policy). Your actual quote depends on revenue, work type, claims history, and state. A plumber doing commercial construction or institutional work will pay more than a solo residential service plumber.

Do plumbers need workers compensation insurance?

Most states require workers comp when you have employees. The premium is calculated per $100 of payroll using a class code for plumbing work. A shop with three journeymen at average wages will pay significantly more than a solo operator. Some states also require coverage for the owner.

Why is my plumber insurance quote higher than the advertised starting price?

The $75/month figure is a GL-only minimum premium for a small Texas plumber. Your quote rises when you add workers comp, commercial auto, tools coverage, umbrella, or endorsements like additional insured and waiver of subrogation. Revenue, payroll, vehicles, claims history, and state all affect the number.

What endorsements do commercial plumbing contracts require?

Most commercial and institutional contracts require additional insured status (ongoing and completed operations), waiver of subrogation, and primary and noncontributory wording. Larger projects may also require umbrella limits of $5M or $10M above your primary GL, auto, and employers liability.

Does plumber insurance cover water damage caused by my work?

General liability typically covers third-party property damage caused by your work, including water damage from failed connections or leaking fixtures. However, the cost to redo your own defective work is usually excluded. Completed-operations coverage applies to claims that arise after the job is finished.

How can I lower my plumber insurance cost?

Shop your renewal with multiple carriers instead of auto-renewing. Raise deductibles where cash flow allows. Make sure your class code accurately reflects your work mix. Document safety practices and manage claims carefully. Bundling GL with property coverage in a BOP can sometimes reduce the total cost.