The answer to 'price to replace shut-off valve' is that the cost can vary widely depending on several factors. Typically, the price to replace a shut-off valve ranges from $150 to $500 or more. The exact cost will depend on the type of valve, the location and accessibility, the plumber's labor rates, and any additional materials or work required.
Shut-off valves control the water supply to a specific fixture or appliance. Replacing one may involve turning off the main water supply, draining the system, removing the old valve, and installing a new one. This work is often best left to a professional plumber, as they have the expertise to do the job properly and safely.