Plumbers need commercial general liability (CGL) to cover claims like water damage to a client's home from a failed fitting. Many general contractors, property managers and homeowners ask for a certificate of insurance showing $2 million or more before work starts.
Beyond liability, plumbing businesses usually need tools and equipment coverage, commercial auto for work vehicles, and in some cases coverage for materials and installations before the client accepts the job. Workers' compensation is separate and handled by your provincial board.
