What to Do if Your Pipes Freeze and Burst in The Winter

What to Do if Your Pipes Freeze

Dealing with frozen pipes in the middle of winter? Frozen pipes can lead to burst plumbing and significant water damage. Knowing what to do when your pipes freeze can save you from expensive repairs and restore water flow quickly. Follow this guide to handle frozen pipes safely and effectively.

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Why Do Pipes Freeze?

When the temperature drops below freezing, the water inside pipes can freeze, causing expansion that may lead to bursts or blockages. Pipes most vulnerable to freezing are usually located in unheated areas like basements, attics, and exterior walls. If left untreated, frozen pipes can cause severe water damage once they thaw and burst.

Steps to Take When Your Pipes Freeze

Step Action
1. Identify the Frozen Pipe Start by checking which faucets have stopped working. Follow the plumbing to locate the pipe that might be frozen—pipes in unheated areas are the most susceptible.
2. Turn Off the Water If you suspect a pipe is frozen, turn off the water supply at the main shutoff valve. This prevents flooding in case the pipe bursts while thawing.
3. Open Faucets Open both the cold and hot water faucets that are supplied by the frozen pipe. This helps relieve pressure and allows water to escape once the pipe begins thawing.
4. Apply Heat Gradually warm the frozen pipe using a space heater, heat lamp, or hair dryer. Do not use an open flame or blowtorch. Focus on the area closest to the faucet to thaw the pipe slowly.
5. Keep the Faucet Open As the pipe thaws, water will begin to flow through the faucet. Keep the faucet open to allow any remaining ice to melt and exit the system.
6. Check for Leaks Once water flow is restored, carefully check the entire pipe for leaks. If a pipe has cracked or burst, you will need to turn off the water and call a plumber immediately.

Preventing Your Pipes from Freezing

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Prevention is the best way to avoid the hassle of frozen pipes. Here are some steps to help protect your plumbing during cold weather:

  • Insulate exposed pipes: Use foam pipe insulation to cover pipes in unheated areas like basements, crawl spaces, and attics.
  • Seal cracks and gaps: Check for drafts around windows, doors, and walls where pipes run and seal any cracks to keep cold air out.
  • Let faucets drip: During extremely cold weather, leave faucets connected to vulnerable pipes dripping. Moving water is less likely to freeze.
  • Keep your home warm: Set your thermostat to at least 55°F (13°C), even when you’re away from home. Opening cabinet doors under sinks can also help warm pipes along exterior walls.
  • Disconnect outdoor hoses: Remove and store outdoor hoses before winter. Close interior valves that supply outdoor faucets and drain any remaining water.

When to Call a Professional Plumber

If you’re unable to thaw the pipe on your own, or if you suspect a pipe has burst, it’s time to call a professional plumber. Burst pipes can cause severe water damage and should be addressed immediately by an expert. A plumber can also help ensure your home’s plumbing system is properly insulated and prepared for future cold snaps.

FAQ

Question Answer
What temperature causes pipes to freeze? Water pipes typically begin to freeze when temperatures drop below 20°F (-6°C). Pipes in unheated areas or exterior walls are the most at risk.
How long does it take for pipes to unfreeze? The time it takes to unfreeze pipes depends on the severity of the freeze and the heat source used. It can take anywhere from 30 minutes to several hours to fully thaw frozen pipes.
Can frozen pipes burst? Yes, frozen pipes can burst as water expands inside the pipe, causing it to crack or break. This can lead to severe flooding once the ice melts and water flow is restored.
Can I use a space heater to thaw frozen pipes? Yes, a space heater is a safe and effective way to thaw frozen pipes. Place it near the pipe and ensure it’s supervised at all times to prevent overheating or fire hazards.
What should I do if my pipe bursts? If a pipe bursts, immediately turn off the water at the main shutoff valve and call a plumber. Avoid attempting repairs on your own to prevent further damage.