The answer to 'how much to fix shut-off valve in Chicago' can vary significantly depending on several factors. Generally, the cost to repair or replace a shut-off valve in the Chicago area can range from $100 to $500 or more. The exact price will depend on the type of valve, the complexity of the repair, the location of the valve, and the plumber's labor rates.
For a simple valve replacement, the cost may be on the lower end of the range. However, if the valve is in a difficult-to-access location or if there are additional plumbing issues that need to be addressed, the price can be higher. It's important to get multiple quotes from licensed and insured plumbers in your local area to ensure you get a fair price.