What to do if water freezes in the house?

Author: Ms. Justine Lowe  |  Last update: Friday, February 20, 2026

Open any faucets connected to frozen pipes to relieve pressure. Faucets should be open but not fully open. If frozen pipes are exposed and visible, use a hair dryer or space heater to thaw ice blockages. Do not use an open flame.

Will frozen pipes unfreeze on their own?

Frozen pipes will eventually thaw on their own, but it could take days or even weeks. If New York City is experiencing a brutal cold snap, the temperature could stay below freezing for many days. Meanwhile, the water in the pipes could be expanding.

Should you shut your water off if your pipes freeze?

Ideally, to protect from freeze damage, the water supply should be shut off and the pipes should be purged (drained) of water. If purging is not possible, at the very least, faucets should be left open. This will allow the water to expand as it freezes so it will be less likely to burst the pipes or damage faucets.

Should you open faucets if pipes are frozen?

Yes, you should leave the faucet open just a bit to allow for expansion of the water if you can't get it thawed... If you know where it is frozen, you can put a hair dryer on the line to slowly thaw it... You don't want a fast thaw as that can also cause expansion that can burst the pipe...

How long will it take for water pipes to unfreeze?

An increase in indoor temperatures can help unfreeze all your indoor pipes, whereas your outdoor pipes may take longer. In many cases though, using the right heating tools can unfreeze your pipes in a matter of 30-45 minutes.

How to deal with frozen water pipes

Will pouring hot water down drain unfreeze pipes?

The job goes more quickly by pouring hot water or a mixture of vinegar, baking soda and salt water down the drain. Space heaters, hair dryers and heating pads are highly efficient tools for unfreezing a drain pipe. If a frozen drain line ruptures, turn off your home's main water supply.

How do you unfreeze pipes without bursting them?

If you have frozen pipes in your home, it can be tempting to try to heat them up as quickly as possible, but this could cause them to burst. Instead, use tools like a hairdryer, space heater, and even your home's thermostat to gradually warm the pipes.

What not to do with frozen pipes?

Do NOT Use These Methods To Thaw Frozen Pipes
  1. Blowtorch.
  2. Gas heater.
  3. Kerosene heater.
  4. Propane heater.
  5. Other open flame appliances.
  6. Any device near insulation.
  7. Electric device with extension cord.
  8. Electric heater, blow dryer, or other device near water.

Do all pipes burst when frozen?

Although common, frozen pipes do not always burst.

Do you drip faucets during a freeze?

Should You Drip Faucets In Cold Weather? Yes, according to the Red Cross, the short answer to that question is you should.

Should I turn off the hot water heater if pipes are frozen?

Frozen pipes can cut off your home's water supply and cause damaging leaks. In many cases, the help of a plumber is needed to resolve the problem. To prevent further damage, it is generally recommended that you turn off your main water supply valve and your water heater until repairs have been made.

Can pipes freeze even if water is running?

It's not that a small flow of water prevents freezing; this helps, but water can freeze even with a slow flow. The running water will allow relief from building pressure in the pipes so they do not burst.

How to tell if pipes are frozen?

A foul smell from the drain or faucet is a less-obvious warning sign. Odors are unable to filter out of the frozen pipe and instead are forced back into the home's faucet. No water or a slow trickle when a faucet is used. Whistling and banging coming from pipes, or strange bubbling sounds when you flush a toilet.

Can pipes freeze in one night?

Yes, pipes can freeze overnight if temperatures plummet drastically. Uninsulated pipes in unheated areas like attics or exterior walls are most vulnerable.

What to do if pipes are frozen in the house?

Apply heat to the section of pipe using an electric heating pad wrapped around the pipe, an electric hair dryer, a portable space heater (kept away from flammable materials), or by wrapping pipes with towels soaked in hot water.

Will turning up the heat unfreeze pipes?

Turn the Heat Upin the Property: You can attempt to thaw the frozen pipe by increasing the temperature in the property. Turning the thermostat up may be all that is needed to allow the ice blockage to melt.

How long do pipes take to unfreeze?

Be prepared to wait at least 30 to 60 minutes. When the pipe begins to thaw, water will start flowing at a faster rate through the open faucet. Even after the water pressure is fully restored, it's recommended to keep the heat on the pipe to ensure the ice in the line is completely melted.

Who to call if your pipes freeze?

Call a Qualified Plumber for Frozen Pipe Repair

Even if a frozen pipe seems fine, it might have cracked or burst somewhere you can't see, meaning it will leak once thawed. If the pipe did not burst or leak, it may have been weakened by the pressure of the ice.

How to prevent pipes from bursting after freezing?

Open cupboards and vanities to warm pipes. Close inside valves that control the water supply. Open the outside spigots to allow to drain water out. Keep outsides valve open so water remaining in the pipe can expand without causing a break.

Can pipes freeze without bursting?

Frozen pipes do not always burst; however, when pipes freeze, the risk of them bursting increases significantly. The good news here is, there are steps you can take during cold weather to help minimize the risk of this happening — saving you the hassle and cost of expensive repairs.

Is it better to let frozen pipes thaw on their own?

This could eventually lead to the pipe bursting and causing significantly more damage. It's better to proactively thaw a frozen pipe size than let it persist. What if the pipe bursts? If your water supply pipe does burst, turn off the building's water valve immediately to limit water damage.

How to know if pipes burst?

Burst Pipe Signs
  • Water sounds. If you hear sounds from inside the walls, a burst pipe is possible. ...
  • High water bill. Water bills tend to increase when you have burst pipes. ...
  • Water pressure problems. ...
  • Puddles. ...
  • Wall stains. ...
  • Discolored water. ...
  • Water smells. ...
  • Pipe noises.

Should I turn my faucet on if my pipes are frozen?

We repeat: keep your faucets open and your water turned off while pipes thaw! Keeping the faucets open will also expedite the thawing process and allow the thawing ice to run through the pipes.

How do I unfreeze my pipes I can't see?

Apply heat to the frozen area

There are several ways to do this. You can wrap the pipes in thermostatically controlled heat tape, or you can use an external heat source such as a hair dryer or space heater. Do not use a propane torch as this can damage the pipe and create a fire risk.

Will running hot water unfreeze pipes?

Pipe-thawing options: There are several things you can do to thaw your home's pipes. Here's a list: Probably the most popular and safest pipe-thawing option is to use hot water.

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