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§ 01
Why this matters
What can go wrong on the job.
- 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 contracts require, and what's worth adding.
- +Workers' compensation
- +Commercial auto
- +Tools & equipment
- +Surety bond
§ 03
Typical premium ranges
What it tends to cost.
- General liability: $1,378 avg / year[Q]Insureon
Figures are reported averages, not quotes. Actual premiums vary by state, revenue, payroll, and underwriting.
§ 04
Common gaps
Where this coverage trips 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?