Key Takeaways. The cost to replace a main water shut-off valve ranges from $150 to $600, with an average cost of around $285.; The cost of the valve itself will vary by type, but most cost between ...

1. Locate Your Water Shut-Off. Every home is a little bit different in the placement of its water supply shut-off. Your plumbing appliances each may have their own shut-offs, but there will also ...

At that point, you’re ready to shut down the water and replace the valve. Shut off the street-side valve where the water enters the house. Then loosen the coupling nut and remove the nipple from ...

This water-leak monitor and detector is the only one we cover that features an automatic shut-off valve—which gives you peace of mind flooding is stopped at the source if there’s a leak.

When you install a whole house water shut-off valve, you are likely to have an adjustment period in which you’ll have to tweak the system. We had around a six-month adjustment period.