What to do if water shut-off valve is broken?

Author: Afton Swaniawski  |  Last update: Tuesday, March 25, 2025

If the valve is only partially closing, or if you can't get it unstuck or to stop leaking, you'll need to call a plumber to determine whether the valve needs to be replaced. A shut off valve that doesn't close all way can't do its job in an emergency and is liable to leave you with a house full of water.

Is water company responsible for shut-off valve?

The homeowner is responsible for the water service line from the stop box all the way into the home, this will include the valve before the meter as well as the plumbing the meter in connected to. The home owner is also responsible for all plumbing after the water meter.

How much should it cost to replace a water shut-off valve?

The last thing that affects shut-off valve replacement costs is where you want to install the new valve and how easy it will be to reach there. The average cost to replace a water shut-off valve is between $375 and $600.

Is a leaking shut-off valve an emergency?

A leak can develop, but even worse, you can't cut off or reopen the water supply if needed. If this happens to one of the secondary shut off valves, you at least still have the main one, but if it happens to the main one, you should immediately get it repaired or replaced.

How to fix a shut-off valve that won't shut off?

Fixing a Stuck Water Shut Off Valve

We recommend putting a cloth over the handle and using your hand to slowly rock the stuck valve back and forth to loosen it. Keep doing this until the valve can be completely opened and closed. If the valve won't turn after trying this, grab a pair of Channellock pliers.

How to Repair a Damaged Main Shutoff Valve | Ask This Old House

Can you repair a water shut-off valve?

Rebuilding a shut-off valve is a simple first step that you can take to fix problems with your sink or toilet. With a stem repair kit and a few basic tools, the job is a DIY project that doesn't take very long. Ready to get the tools and materials you need to make plumbing repairs?

Can you spray WD-40 on a water shut-off valve?

Use of the Day: Keep valve stems and faucets rust-free by spraying them with WD-40.

What qualifies as a plumbing emergency?

If the problem is major enough that it'll cause notable damage to your plumbing fixtures, flooring, walls, or other parts of your home, it's a plumbing emergency. A persistently leaking pipe can create significant water damage, while a clogged sink won't cause damage overnight.

Can a water shut-off valve break?

If your home has a gate valve as the main shut off, be careful, as these can break easily. It's best to have it replaced with a modern ball valve as soon as possible.

Is it OK to leave water valve off?

It is always advisable to turn off your water supply before leaving for a vacation. Shutting off the water is crucial for protecting your home from water damage through leaks or burst pipes. The last thing you want is to find the house flooded and with a foul smell when you return.

How often should shut off valves be replaced?

When it comes to shut-off valves, there is good news and bad news. The good news is that they can last for 20 to 25 years. The bad news is that if they are not used and exercised every two years (at least), they may freeze in the open position and need replacement.

How much is a new water shut-off valve?

The average cost to replace a main water shut-off valve is $500, but most homeowners pay between $375 and $600 depending on the valve type, material, and whether trenching is involved.

Who owns the water shut-off valve?

There should be a valve on each side of the water meter. Either valve will shut off the water to your home if they are operable. Care and maintenance of these valves is the responsibilty of the homeowner.

Who to call to find water shut off?

Call 811 for free utility locates. They can usually locate private segments, such as the water service line to the house. As far as the shutoff valve, you might have to dig up the whole line.

Is no running water an emergency?

Loss of water is a maintenance emergency. Sometimes, a broken water main is the culprit. The local water utility will try to complete a repair as quickly as possible. It is also possible that the problem is on the premises.

Should I shut off the water before calling an emergency plumber?

Turn Off the Water

If the plumbing emergency involves a leak, overflowing toilet, or outright flood, shut off the water supply to minimize property damage. In the case of individual fixtures flooding or leaking, you should find a shut-off valve on the wall behind the fixture in question.

Does homeowners insurance cover plumbing emergencies?

Homeowners insurance typically covers losses resulting from a sudden malfunction, such as a pipe bursting unexpectedly. However, a homeowners policy won't cover slow, constant leaks or other plumbing problems resulting from neglect or improper maintenance.

Who is responsible for replacing the main water shut-off valve?

The water valve Inside your house is your property. No one can sue you for turning that one off. The valve in the street or meter pit for your house belongs to the water utility. You could have to pay for the repairs if you damaged it.

How to fix a shut-off valve?

Steps:
  1. Shut the water off to the house.
  2. Pull the handle off the shutoff valve using the screwdriver.
  3. Loosen the gland nut behind the handle using the wrench.
  4. Unscrew and remove the valve.
  5. Screw in the new valve from the repair kit.
  6. Tighten the gland nut back over the new valve with the wrench.

How do I know if my water shut-off valve is bad?

Turn the valve off by twisting it clockwise. Test the water flow by turning on a faucet—no water should flow if the valve is functioning correctly. Check for leaks around the valve and ensure it turns smoothly. If the valve is hard to turn or water continues to flow, it may need repair or replacement.

What is the best lubricant for shut-off valves?

Other ways to lubricate your valves are with the following:
  • Grease fittings.
  • Graphite powder.
  • Silicone-based spray.
  • Silicone grease.
  • Natural options, such as coconut, veggie, or olive oil.

Why put WD-40 in toilet bowl?

When cleaning a toilet bowl, WD-40 works by softening the rust and lime deposits, so they can be easily wiped away. You don't need to use much of it. Simply spray on the affected area, wait a minute or two and brush it away with a regular toilet brush.

How do you unstick a water shut off valve?

Spray with a lubricating oil and let it sit then wiggle the handle in both directions until it becomes loose. If that doesn't work that top nut is a packing nut turn it slightly to the right to help remove some tension but don't turn more than a little bit 1 time or you could blow out the valve.

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