7 Signs Your Pipes Are Freezing And What You Can Do About It

Frozen pipes are one of those home issues that don't seem urgent until it’s too late. A frozen pipe can lead to cracks, leaks, or full-on bursts, causing water damage and expensive repairs. If you live in a colder climate, knowing the early signs can help you take action before things get out of hand. Here's how to spot freezing pipes and what steps you can take to prevent serious damage.

You Suddenly Have Low Water Pressure

A kitchen sink faucet running weakly.
Photo Credit: Envato Elements / wirestock
Photo Credit: Envato Elements / wirestock

If water starts trickling out of your faucets instead of flowing, that's a red flag. You might notice this first when using the kitchen sink or shower. Don’t ignore it, as it could mean water is turning to ice somewhere along the line, that frozen water then blocking up the pipe and resulting in low pressure. This is especially common in pipes running along exterior walls or through uninsulated areas.

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You Hear Strange Noises in the Pipes

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Two iron pipes attached to a stone wall.
Photo Credit: Envato Elements / High-Fliers
Photo Credit: Envato Elements / High-Fliers
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Pipes aren't supposed to creak, bang, or whistle. When water begins to freeze, it expands and creates pressure against the pipe walls, which can cause popping or knocking sounds. Everyone's pipes make noises sometimes, but if they're consistent in any way, that's a warning. They usually happen when temperatures drop fast and your plumbing isn’t insulated well, so keep an ear out early winter.

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You Notice Frost on the Outside of the Pipe

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Frozen faucet in winter. Outdoor faucet frosted
Photo Credit: Envato Elements / zeffss
Photo Credit: Envato Elements / zeffss
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If you can see exposed pipes in places like your basement, attic, or under sinks, check them during cold spells. If you spot frost or a layer of ice on the pipe's surface, that means the water inside is dangerously close to freezing. This is one of the clearest physical signs and should be taken seriously. It means you need to warm that area up quickly.

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Your Pipes Feel Extremely Cold to the Touch

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Small icicles hanging off a roof above a gutter pipe.
Photo Credit: Envato Elements / Kinek00
Photo Credit: Envato Elements / Kinek00
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Even if there's no frost, a freezing pipe will feel much colder than usual. Run your hand along the pipe if you're unsure. If it feels icy or you’re in a room that’s colder than the rest of your home, you’re probably looking at a pipe that’s at risk. Warm the space with a heater or open nearby cabinets to let warm air in.

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Your Toilet Won't Refill After Flushing

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Plumber repairing toilet tank in bathroom plumbing at home changes the repairing toilet tank
Photo Credit: Envato Elements / photovs
Photo Credit: Envato Elements / photovs
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If your toilet tank doesn't refill properly after a flush, the supply line feeding it might be frozen. This usually happens in bathrooms that are near poorly insulated exterior walls. People often assume the toilet is broken or the valve is stuck, but freezing is a more likely cause during winter. Take this seriously and get it looked at before the pipe cracks.

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You Smell Something Odd or Musty

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Water pouring from a tap off screen into a kitchen sink drain.
Photo Credit: Envato Elements / towfiqu_barbhuyia
Photo Credit: Envato Elements / towfiqu_barbhuyia
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Frozen pipes can create sizeable blockages, causing pressure buildup and slow drainage. In some cases, this leads to a strange odor coming from drains, especially those in your kitchen. If you notice a musty or unfamiliar smell when the weather gets cold, it could be a pipe that's starting to freeze. This isn’t a common first sign, but it’s worth checking out, especially if paired with other issues.

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One Room Feels Noticeably Colder Than the Rest

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Plumbing system installation with pvc plastic drain pipe and water piping system for new home
Photo Credit: Envato Elements / photovs
Photo Credit: Envato Elements / photovs
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If a certain area of your home always feels colder, especially where water pipes are located, there's a higher risk of freezing in those spots. Unfinished basements, laundry rooms, or guest bathrooms are common problem areas. Cold air plus poor insulation gives freezing temperatures an easy way in. This sign can sometimes go overlooked, but it's an important clue when things start going wrong.

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What You Can Do To Prevent Further Damage

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Siphon and pipes under the sink in the kitchen, the cabinet doors open.
Photo Credit: Envato Elements / maxxyustas
Photo Credit: Envato Elements / maxxyustas
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If you suspect a pipe is freezing, you have to act fast. Open cabinets under sinks to let warm air reach the pipes. Keep a slow drip going from faucets to relieve pressure and keep water flowing. Apply heat using a space heater, heating pad, or hair dryer, but never an open flame. Long-term, insulating vulnerable pipes and sealing air leaks around windows or foundation gaps is what will help prevent repeat issues.

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Frozen pipes don't have to lead to disaster if you know what to watch for and take quick action. Staying on top of these warning signs is your best chance at avoiding a cracked or even burst pipe, which could result in a flood. Otherwise, try to make sure your home is prepared before the cold hits. A few simple steps now can save you the stress, mess, and cost of a major repair down the line.