Plumbing services in Williston differ and usually depend on the location, the services needed and the complexity of the project. A plumber’s rate is around %MIN_HOURLY% to %MAX_HOURLY% per hour and can go as high as $99 to $717 based on the region. They charge by a minimum of 2 hours, or they may include a call-in service fee that ranges from $70 to $160. Other plumbers may also charge a flat rate fee per job. Either way, the amount will primarily depend on the difficulty of the task at hand.