How do you unfreeze pipes you can't reach?

Author: Hermann Swift  |  Last update: Monday, June 30, 2025

Apply heat Use a space heater, heat lamp or hair dryer to thaw the frozen length of pipe. Start looking for the frozen pipe by checking pipes along exterior walls, in basements, in crawl spaces, under sinks, in attics or any cold area of your home.

How do you thaw a pipe you cannot access?

Try a Blow-Dryer

A blow-dryer is usually the easiest and safest way to thaw a pipe. If the pipe is close to the wall, you can also place a cookie sheet behind the pipe to help radiate heat from the wall onto the backside of the pipe.

Will pouring hot water down the drain unfreeze pipes?

In most instances, pouring hot water down the drain will unfreeze drain pipes. However, it's essential to take your time with this method to increase its effectiveness and ensure your safety. Follow these simple steps: Fill a pot with a half-gallon of water and bring it to a boil on the stove.

What is the fastest way to unfreeze water pipes?

A frozen pipe can be thawed out using a hot water bottle, a heat gun, hair dryer or you can even use a blow torch set to low heat, providing your pipes are metal (do not use a blowtorch on plastic pipes). An outside tap cover is a great idea and can prevent pipes and taps from freezing- Outside tap cover | pr...

How do I unfreeze my hidden pipes in my house?

Apply heat to the pipe.

You can also use a small heater or heat lamp. If there is no electrical outlet, boil some water and soak a few towels in it. Wrap the pipe with these towels. When the towels cool, repeat the process until the pipe is completely thawed.

How to Thaw Frozen Water Pipes

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

Keep the faucet open. As you treat the frozen pipe and the frozen area begins to melt, water will begin to flow through the frozen area. Running water through the pipe will help melt ice in the pipe.

How to locate where a pipe is frozen?

Touching the pipes (if possible) can help you identify freezing as they will be especially cold to the touch and might have condensation on the outside. Physically check pipes for signs of freezing by looking for condensation, frost, ice, a slight expansion, or bulges in the pipes.

What do plumbers use to unfreeze pipes?

Tip #7: A Thaw Machine Will Be Your Savior

It's exactly what it sounds like: a portable device that plumbers use to thaw pipes quickly.

Will frozen pipes unfreeze on their own?

Your pipes will eventually begin to thaw on their own once the temperatures rise above freezing. As they do so, you may begin to hear your pipes making gurgling, clanging, or banging sounds as the ice begins to move. The hot water heater may do the same.

How do I make sure frozen pipes don't burst?

Here is a list of eight things that you can do to avoid water pipe bursts:
  1. Keep Water Faucets Running. ...
  2. Direct Warm Air to Cold Areas of Your Home. ...
  3. Leave Your Cabinet Doors Open. ...
  4. Disconnect Your Hose from the Outside Faucet. ...
  5. Install Heat Tape. ...
  6. Seal Leaks That Allow Cold Air into Your Home. ...
  7. Check Your Home's Temperature.

What is the best way to unfreeze plumbing?

How to unfreeze pipes
  1. Turn on the faucet. Keep it running. ...
  2. Apply heat to the frozen area. Slowly apply heat using a hair dryer. ...
  3. Continue to apply heat. Don't stop heating until the full water pressure is restored. ...
  4. Check all faucets and prevent pipes from freezing in the future.

How to tell if a drain pipe is frozen?

  1. 5 Signs You Might Have a Frozen Drain Pipe. thogan. ...
  2. 1 Visible frost on a pipe. ...
  3. 2 Strange sounds coming from the pipes. ...
  4. 3 Unpleasant smells from the pipes. ...
  5. 4 Weak water pressure or no running water at all. ...
  6. 5 Keep an eye out for leaks.

Will turning on heat unfreeze pipes?

You can try to thaw a frozen pipe by increasing the temperature in your home. Turning the thermostat up may help the ice blockage to melt. Not only will you have frozen pipes, but you may also start a fire. It can also cause the water inside the pipe to boil which will cause an explosion.

Will shutting off water keep pipes from freezing?

Prevent Frozen Pipes

Moving water keeps pipes from freezing. Find shut off valves for emergencies. Insulate pipes in unheated areas. Open cupboards and vanities to warm pipes.

Why do pipes burst when they thaw?

As the ice expands, it pushes liquid water toward the closed faucet. This causes an immense amount of water pressure to build between the ice blockage and the faucet — eventually, the pipe ruptures under the pressure, usually at a spot where there's little or no ice.

How long can pipes stay frozen without bursting?

Pipes typically burst when exposed to extremely low temperatures for an extended period of time (anywhere from 1-3 days depending on temperature). This is especially true for pipes located on exterior walls. A frozen pipe is likely to burst when any water or liquid trapped within it freezes and begins to expand.

Should you leave faucets open when water is turned off?

Pipes: Turn off water supply to the house and drain pipes to protect them from freezing. You can empty pipes by running the water and flushing the toilets after the water has been turned off. After draining the pipes, it is a good idea to leave the faucets open to prevent pressure build up from any water that remains.

What do I do if my pipes are still frozen after 2 days?

If your pipes have been frozen for more than two days, shut down your home's water supply. Locate the frozen length using touch, sight and sound. Make sure the pipe hasn't burst, and open indoor faucets. Unfreeze the pipe using a hair dryer, heat tape, space heater or heating pad.

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.

What can you pour down drain to unfreeze pipes?

Here are some tips that can help:
  • Boil water. Boil a generous amount of water and add a cup full of salt to it. ...
  • Baking soda. While the water is boiling, put around ½ a cup of baking powder in the drain. ...
  • Vinegar. Pour one cup of vinegar down the pipe immediately after putting baking soda. ...
  • Pour boiling water. ...
  • Run hot water.

How to find where a pipe is frozen?

Turn on all faucets: Checking each faucet in your home will help you narrow down your search. The faucets that have little or no water pressure likely have a frozen pipe in their supply line. If every faucet is showing low water pressure, the frozen pipe may be near the water meter.

How do you thaw frozen pipes without access?

If the pipe is behind a wall, you can turn up the thermostat and wait for the thaw. Or you can hook up a lamp to warm the area. Infrared lights work best because they don't warm the air, just the pipes behind the wall. If the pipe is exposed, you can heat it with a hairdryer.

Which pipes are most likely to freeze?

The pipes most likely to freeze are those nearest an uninsulated wall, door, window, garage, attic, basement, or along an uninsulated floor. Add insulation to exterior walls wherever possible and wrap pipes with insulation.

Are frozen pipes an emergency?

Frozen water pipes aren't life threatening, however frozen or broken water pipes do cause damage to homes each winter. If pipes in the walls aren't properly insulated, they can freeze and rupture. (An 1/8-inch crack in a pipe can release up to 250 gallons of water a day, soaking floors, rugs, and furniture.)

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