The answer to 'how much to fix shut-off valve in Chicago' is that the cost can vary significantly depending on several factors. In general, the typical range for a basic shut-off valve repair or replacement in the Chicago area is between $150 to $500. The exact price will depend on the complexity of the job, the type of valve, the accessibility of the plumbing, and the hourly rates of the plumber.
Factors that can influence the cost include the age and condition of the existing valve, whether the valve needs to be replaced entirely, the materials and parts required, and the amount of labor needed to access and repair the valve. Additionally, the cost may be higher if the shut-off valve is located in a difficult-to-reach area or if there are any complications with the plumbing system.