Question: how much does it cost to replace a shut off valve installation?
Answer: install a water shut off valve national average cost The national average cost to install a water shut off valve is $94.07 per valve, with a range between $85.05 to $103.09. The total price for labor and materials per valve is $190.92, coming in between $173.71 to $208.13. A typical 1 valve project costs $191.