Phone answered 24/7 · Columbus, OH and nearby communities

Call 24/7: (614) 412-4391
Scioto River Water ResponseWater Damage Help · Columbus, OH

Why Do Pipes Burst in Cold Weather?

Last updated October 31, 2026

Call Now (614) 412-4391

The short answer

The Freezing Process

Water freezes at 32 degrees Fahrenheit, and as it turns to ice, it expands by roughly nine percent. In a pipe, this expansion has nowhere to go. The ice pushes against the pipe walls, building pressure that can cause the material to crack or rupture.

Pipes in unheated spaces, such as basements, crawl spaces, or exterior walls, are most vulnerable. Even a small crack can allow water to leak once the ice melts, leading to flooding and water damage. The damage often goes unnoticed until the thaw, making it a hidden threat.

Why Some Pipes Burst More

Pipes made of metal, like copper or steel, can be more prone to bursting because they are rigid and have less give. Plastic pipes, such as PVC or PEX, are more flexible and may withstand freezing better, but they are not immune. The location of the pipe matters just as much as the material.

Pipes in attics, garages, or along exterior walls are at higher risk because they are exposed to colder temperatures. If you have pipes in these areas, you can take steps to protect them, such as adding insulation or keeping a slow drip of water flowing during a freeze.

  • Insulate pipes in unheated areas
  • Keep garage doors closed to retain heat
  • Let a faucet drip during extreme cold
  • Seal gaps around pipes to keep cold air out
  • Know where your shutoff valve is located

Signs of a Frozen Pipe

A frozen pipe may not be obvious at first. You might notice no water coming from a faucet, or the water flow is reduced. Another sign is a strange odor from the tap, which can indicate a crack in the pipe where groundwater or contaminants may enter.

If you suspect a frozen pipe, act quickly. Turn off the water at the main shutoff valve to prevent flooding if the pipe bursts. You can try to thaw the pipe with a hairdryer or warm towels, but never use an open flame, as that can damage the pipe or start a fire.

What to Do If a Pipe Bursts

If a pipe bursts, the first step is to shut off the water supply to your home. Then, open the faucet that is connected to the burst pipe to allow any remaining water to drain. This reduces the amount of water that can leak into your home.

After the water is off, you can begin the cleanup. Water damage can spread quickly, soaking into floors, walls, and belongings. The pros can help with water extraction and drying, but you should start removing standing water as soon as it is safe to do so.

How Pros Can Help

Water damage from a burst pipe can be extensive, affecting drywall, flooring, and structural materials. The pros have the equipment to extract water and dry out your home thoroughly. They can also inspect for hidden moisture that could lead to mold growth.

If you live in Columbus, keeping your shutoff valve location written down can save time in an emergency. After a burst, the pros can assess the damage and recommend the next steps. Their work typically involves drying, removing damaged materials, and restoring your home to a safe condition.

  • Water extraction from floors and carpets
  • Structural drying with dehumidifiers
  • Moisture mapping to find hidden wet spots
  • Removal of water-damaged drywall or flooring
  • Inspection to check for mold risks

Need help right now?

Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.

Call Now (614) 412-4391

Frequently asked questions

Can a pipe burst without freezing?

Yes, pipes can burst from other causes like high water pressure, corrosion, or physical damage. However, freezing is the most common cause in cold weather. If you suspect a leak, check for wet spots or listen for running water when all taps are off.

How long does it take for a pipe to freeze?

It depends on the temperature, the pipe's location, and insulation. In extreme cold, a pipe can freeze in a few hours if it is exposed. To be safe, take precautions when temperatures drop below 20 degrees Fahrenheit for an extended period.

Will insurance cover a burst pipe?

Policies vary, and your insurer decides what is covered. Some policies cover water damage from burst pipes, but not always. Check your policy to understand your coverage. If you have damage, document it with photos and contact your insurance company to ask about your situation.

Call Now (614) 412-4391