Plumber Insurance in North Carolina: What Plumbers Need
For plumbing contractors, service plumbers and plumbing subcontractors, residential and commercial.
A plumber's biggest claim is rarely an injury. It is water: a fitting that lets go after you leave, a supply line that floods two floors, a sewer backup during a service call.
North Carolina requires a state license for paid plumbing work at any price, but not liability insurance. Customers, general contractors and property managers will require it, and the policy wording around water damage and your own work is what decides whether a claim gets paid.
Coverages plumbers need
General liability with completed operations. Covers water damage, injuries and property damage from your work, including leaks that show up after the job. It usually will not pay to redo your own faulty work, but it can pay for the damage that work caused.
Workers compensation. Covers your techs. Required at three or more employees, and often required by GCs regardless.
Commercial auto. Covers service vans and trucks, including the equipment permanently attached to them.
Inland marine (tools and stock). Covers tools, cameras, jetters and parts inventory carried on the van.
Pollution liability. Covers sewage, mold and contaminant releases, which general liability often excludes.
Umbrella. Adds limits for commercial and multi-family work.
Forms, endorsements and availability vary by insurance company. Your own policy governs.
North Carolina licensing and requirements
License required at any price. Anyone doing plumbing, heating or fire sprinkler work for pay needs a license from the state board, with no dollar threshold (G.S. 87-21, State Board). Class I covers all structures; Class II covers single-family detached homes (Board applicant information).
Narrow exceptions. Minor repairs and replacements of parts on an existing system, without changing the energy source, venting or piping, are exempt; installing or replacing a water heater is licensed work (G.S. 87-21).
No insurance requirement in the licensing law. The plumbing licensing statute does not require general liability insurance or a bond. Contracts and local permitting may.
Workers comp and subs. Employers with three or more employees regularly employed must carry workers comp (G.S. 97-2). Sole proprietors, partners and LLC members are not counted automatically but can elect to cover themselves by notifying the insurance company (NC Industrial Commission). A contractor who hires a subcontractor without first getting a certificate of workers comp coverage can be liable for the sub's injured workers, even if the sub has fewer than three employees (G.S. 97-19).
Vehicles. Business vehicles need at least North Carolina's 50/100/50 liability minimums on policies issued or renewed on or after July 1, 2025 (NCDOI).
What drives the cost of plumber insurance
The main factors insurance companies weigh:
- Residential service vs. commercial vs. new construction
- Gas piping and water heater work
- Payroll and workers comp classification
- Liability limits and water damage claim history
- Number of vans and drivers
- Tool and inventory values
- Sewer, excavation or drain work
We do not publish average prices. A licensed advisor quotes your actual operation across more than 100 insurance companies.
Common Questions
Do plumbers need insurance in NC?
The state requires workers comp at three or more employees and auto insurance on vans. Liability insurance is not a licensing requirement, but customers and contractors nearly always require it.
Does NC require insurance for a plumbing license?
No. The licensing statute requires a license for paid work but does not require liability insurance or a bond.
How much is insurance for a plumber?
It depends on your payroll, revenue, type of work, vans and claims history. We compare many insurance companies and quote your actual shop.
Does plumber insurance cover water damage from my work?
General liability can cover damage your work causes to other property, including water damage. It usually will not pay to redo the faulty work itself.
Do I need a license to replace a water heater in NC?
Yes. Water heater installation or replacement is licensed work under the plumbing statute.
Does my plumber's policy cover tools on my van?
Not under general liability. Tools and stock need inland marine coverage.
The Bottom Line
- Tell us before you take commercial or multi-family work, so limits match the contract.
- Read the water damage and faulty work wording on your liability policy.
- Insure tools and stock on the van separately.
- Add pollution coverage if you do sewer or drain work.
- Get certificates from any sub you hire.
Forms, endorsements, and availability vary by insurance company. Your own policy governs.
Sizemore Insurance is an independent insurance company founded in North Carolina in 1977. Tell us what your business does and what you need to protect, and a licensed advisor will compare more than 100 insurance companies to find the coverage that fits. Insurance made just for you.
Sources: G.S. 87-21, plumbing, heating and fire sprinkler contractor licenses; NC State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors; NC Plumbing, Heating and Fire Sprinkler Board, applicant information; G.S. 97-2, workers compensation definitions (3 or more employees); NC Industrial Commission, employer insurance requirement; G.S. 97-19, contractor liability and subcontractor certificates; NC Department of Insurance, auto changes effective July 1, 2025.
Forms, exclusions, endorsements, and availability vary by carrier. This page is general information, not a policy or legal advice. Review your own policy or talk to your advisor.