The answer to 'how much to fix supply line local' depends on several factors, but you can typically expect to pay between $100 to $500 to have a plumber repair or replace a water supply line. The exact cost will depend on the complexity of the job, the materials needed, and your location.
Some key factors that influence the cost include the length and accessibility of the supply line, whether it needs to be rerouted or replaced entirely, and any additional work required like repairing drywall or flooring. Prices also vary based on your local plumber's labor rates and the cost of parts in your area.