What insurance does a plumber need?

General liability is the line clients and general contractors require. Most plumbers add workers' compensation, commercial auto, tools & equipment, and a contractor bond. Reported general liability runs about $1,378/year, per Insureon.

Does plumbing insurance cover water damage from a failed connection?

Water damage is the signature plumbing claim, because a failed connection can flood a building. Confirm water-damage claims are not sub-limited on your policy, because a sub-limit can leave you paying the difference on a large loss.

Is gas-line work covered by a standard plumbing policy?

Often not by default. Gas-fitting carries fire and explosion exposure and may require a separate endorsement. If you do gas piping, confirm it is scheduled before you take the work.

Do plumbers need a license bond?

Most states require a plumbing license or contractor bond to operate. A bond is not liability insurance; it protects the client and the licensing board, not you, so you typically need both.

How much does plumber insurance cost?

Reported median general liability is about $1,378/year, per Insureon. That is an average, not a quote; leaks discovered long after the job and gas-line exposure push higher-risk plumbers above it.

Trade insurance

Insurance for plumbing contractors.

Plumbing failures cause high-severity water and gas claims, so general liability with completed-operations is mandated by licensing boards and general contractors.

Updated 2026-05-16 · Beaconcover editorial

The short answer: Plumbing Contractor insurance starts with General liability, which clients, general contractors, and licensing boards most often require before plumbing contractors can take a job.

Plumbing Contractor general liability averages $1,378/year, per Insureon. Reported average, not a quote; actual premiums vary by state, payroll, and underwriting.

§ 01

Why this matters

What can go wrong for plumbing contractors?

Water damage from failures. A failed connection can flood a building
Completed-operations defects. Leaks discovered long after the job
Gas-line work hazards. Fire/explosion exposure on gas piping

§ 02

Required vs recommended

What insurance do plumbing contractors need?

RequiredBy law or by typical contract

✓General liability

RecommendedStrongly advised for this trade

§ 03

Typical premium ranges

How much does plumbing contractors insurance cost?

General liability: $1,378 avg / year^[Q]Insureon

Figures are reported averages, not quotes. Actual premiums vary by state, revenue, payroll, and underwriting.

Compare these against typical premiums for every trade, or read what drives business insurance cost to see how payroll, vehicles, and limits move the number.

§ 04

Common gaps

Where does plumbing contractors coverage trip people up?

Confirm water-damage claims are not sub-limited
Gas-fitting may require a separate endorsement
Most states require a plumbing license/contractor bond

§ 05

Before you bind

Questions to ask any carrier for plumbing contractors.

Does the quote include the lines listed above as typically required?
What does a certificate of insurance cost and how fast can the carrier issue one?
How is workers' compensation rated for this trade — by payroll or by class code?
Is there a separate deductible for tools and equipment in transit between sites?
If a client requires an additional-insured endorsement, is there a fee?

§ 06

Common questions

Plumbing Contractor insurance: frequently asked questions.

What insurance does a plumber need?: General liability is the line clients and general contractors require. Most plumbers add workers' compensation, commercial auto, tools & equipment, and a contractor bond. Reported general liability runs about $1,378/year, per Insureon.
Does plumbing insurance cover water damage from a failed connection?: Water damage is the signature plumbing claim, because a failed connection can flood a building. Confirm water-damage claims are not sub-limited on your policy, because a sub-limit can leave you paying the difference on a large loss.
Is gas-line work covered by a standard plumbing policy?: Often not by default. Gas-fitting carries fire and explosion exposure and may require a separate endorsement. If you do gas piping, confirm it is scheduled before you take the work.
Do plumbers need a license bond?: Most states require a plumbing license or contractor bond to operate. A bond is not liability insurance; it protects the client and the licensing board, not you, so you typically need both.
How much does plumber insurance cost?: Reported median general liability is about $1,378/year, per Insureon. That is an average, not a quote; leaks discovered long after the job and gas-line exposure push higher-risk plumbers above it.