What insurance does a plumber business need? (2026)
Most plumber operations carry a stack of commercial-insurance lines — some legally required (typically workers' compensation when you have employees), most commonly carried because clients, landlords, lenders, or regulators expect them. Below: the lines that bureau filings most often cite for plumber operations. Confirm what's legally required vs commonly carried with a licensed agent in your state — requirements vary state by state.
Typical insurance coverages for plumber operations
Most plumber businesses carry a stack of 2 commercial-insurance lines — based on common industry practice and the lines that bureau filings most often cite for this vertical. Workers' comp is typically required by state law where employees are involved; the rest are commonly carried but not always legally mandated. Confirm with a licensed agent in your state for what's legally required vs commonly carried.
- Workers' Compensation →Medical bills + lost wages for employees injured on the job. Typically required by state law where employees are involved (TX is voluntary).
- General Liability →Third-party bodily injury, property damage, and personal/advertising injury claims arising from your operations.
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Insurance requirements for other industries
Browse the typical insurance coverage stack for other verticals. Each links to that industry's standalone requirements page.
| Business activity |
|---|
| Air-conditioning system (except window) installation |
| Air system balancing and testing |
| Air vent installation |
| Bathroom plumbing fixture and sanitary ware installation |
| Blower or fan, cooling and dry heating, installation |
| Boiler chipping, cleaning and scaling |
| Boiler, heating, installation |
| Central air-conditioning equipment installation |
| Central cooling equipment and piping installation |
| Central heating equipment and piping installation |
| Chilled water system installation |
| Chimney liner installation |
| Commercial freezer installation |
| Commercial refrigeration system installation |
| Cooling tower installation |
| Drain, waste and vent system installation |
| Drinking fountain installation |
| Dry heating equipment installation |
| Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation |
| Dust collecting and bag house equipment installation |
| Exhaust system (e.g., kitchens, industrial work areas) installation |
| Fire extinguisher installation |
| Fire extinguisher installation and repair |
| Fireplace, natural gas, installation |