Open Accessibility Menu

What to Do When Pipes Freeze?

Water Damage
Author: ServiceMaster Restore

If you live in an area with extreme winter temperatures, you run the risk of the pipes in your home freezing. Water has a unique property in that it expands as it freezes. This expansion puts tremendous pressure on whatever is containing it. No matter the strength of a container, expanding water can cause pipes to break. As water running through your pipes begins to freeze, the water will expand 10% in volume until the pressure rises enough to split your pipes open, potentially causing severe water damage to your home. There are a few things you can do to keep your pipes from freezing in the first place, and – if you act quickly – there are even ways to thaw frozen pipes in your house before they burst. Read these tips from ServiceMaster Restore to learn what to do if your pipes freeze up.


In general, the pipes that typically freeze during winter are the ones exposed to extreme cold. These may include any outdoor water pipes like water sprinkler lines and swimming pool supply lines, as well as water pipes located in unheated areas of the home. Pipes in unheated basements, attics, garages, crawl spaces and even under the kitchen or bathroom sink are at risk for freezing. If your home has pipes that run along exterior walls with insufficient or no insulation, these pipes are also at risk for freezing in winter months.

Frozen pipes in the winter time


  • Install a heating cable. For the coldest climates, consider installing electrical heating cables around crawlspace pipes to be sure that no water is able to freeze.
  • Add extra insulation. Adding insulation to water pipes in unheated areas throughout your home, including the garage, basement, and any outdoor taps, can make water less likely to freeze. Insulate large areas with sheets of foam board. These work well in crawl spaces, garages and other areas that need temporary insulation.
  • Repair leaks. If your pipes have any cracks or leaks, make repairs before cold temperatures arrive. Otherwise, leaking water may freeze right at the cracks, expand, burst, and leave you with significant (and expensive) damages.
  • Turn off appliances.
    • If your washing machine sits in an unheated garage, turn off water supply lines and disconnect the hoses, especially if you know that temperatures that day are expected to drop below freezing.
    • If you know you're going to be away from home for a few days or more, consider completely turning off your main water valve to avoid plumbing system damages.
    • Be sure to disconnect outside water hoses before cold weather hits so any sitting water in the hoses can't freeze, expand, and destroy the hose or connecting pipes inside.
  • Open cabinet doors. Opening cabinet doors underneath sinks in kitchens and bathrooms allows heat to circulate around the uninsulated pipes, especially if the cabinets are near exterior walls.
  • Keep it moving. Gently turning on taps connected to pipes that are likely to freeze keeps the water moving and reduces the risk of freezing. Remember to let only a small amount of water flow through and keep the cabinets around pipes open so warm air can circulate and increase water flow, as well.


Once the temperatures drop, you’ll need to take additional action to help prevent your pipes from freezing. Follow these steps to prevent frozen pipes this winter:

  • Maintain a consistent thermostat setting. The American Red Cross recommends keeping your thermostat set to the same temperature all day and night to help maintain a consistent heat level and reduce the risk of freezing pipes.
  • Do not set your thermostat lower than 55 degrees Fahrenheit during the winter.
  • Keep garage doors closed when not in use, especially if there are any water lines in the garage or on walls adjacent to the garage.
  • Let cold water drip from faucets served by exposed lines. The American Red Cross says that even the smallest trickle can help prevent these pipes from freezing.


How can you tell if your pipes are frozen? If you turn on the faucet and see little to no water trickling out, this could indicate that your pipes have frozen – preventing a free flow. If you've already identified frozen pipes in your home, here are a few ways you can thaw them out before they cause a bigger problem.

  • Turn off your water. Turning off your water supply will reduce pressure on the frozen pipes and minimize flooding if the pipe does end up bursting. Once your water is shut off, try the techniques below to thaw your pipes or call for professional help.
  • Warm it. Use a hairdryer to thaw the entire area so the water gently melts, reducing the risk of damage. You can also try using a heat lamp to warm the area.
  • Wrap it. Wrap and secure a heavy towel around the pipe to concentrate heat to one area. Then, place a bucket underneath the pipes and pour hot or boiling water over the towel.
  • Use a hose. If you have access to the pipe and it's large enough, you can try running a garden hose through it. When you can't push the hose through anymore, you've reached the frozen area. Try raising your end of the hose and running hot water through it until the ice is able to melt. Be careful during this process since overfilling could cause hot water to come back up on your end before the blockage has fully melted.
  • Look for any leaks in your exposed pipes, as well as damp patches on your walls, ceilings, and floors. Once the pipes have thawed, there can still be a high amount of pressure that can put you at risk for leaks or bursts. Some pipes may need to be completely replaced in order to avoid future failure.

In the event that the worst does happen, call the experts to help clean up any water damage caused by burst pipes or flooding. The trained, caring, and professional water damage technicians at ServiceMaster Restore are here 24/7/365 to help you through the entire restoration process so you can get your home and your life back to normal as quickly as possible.

Find out more about our weather damage services and find your location to get immediate support.

Related Articles

  • How to Prevent Leaks in Your Commercial Building
    How to Prevent Leaks in Your Commercial Building A Guide to Leak Prevention in Commercial Buildings Commercial buildings, often seen as bustling hubs of business activity, are significant investments that require meticulous care to maintain their structural integrity. One of the most common and potentially damaging issues ... Continue Reading
  • How to Recognize Signs of Damage to Your Basement
    How to Recognize Signs of Damage to Your Basement If left undetected, basement leaks can cause serious and even irreversible damage to your property. While the first signs of trouble are often extremely subtle, checking for these indicators regularly can save you thousands of dollars in repairs. Learn the important signs of ... Continue Reading
  • Landscaping Tips to Prevent a Wet Basement
    Landscaping Tips to Prevent a Wet Basement Your landscaping may be to blame if your basement suffers from frequent flooding. The water that builds up outside your home can easily flow into your basement in several ways, leading to severe water damage, high costs, the potential risk for mold growth, and can even cause ... Continue Reading
  • Top Signs of Water Damage at Home
    Top Signs of Water Damage at Home Whether you’re considering buying or selling a home, or just evaluating your current home, it's essential to know the signs of potential water damage. Water damage from a flood, fire, or variety of leaks can cause structural problems and lead to the development of mold, ... Continue Reading
Page 1 of 7