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What to Do if Your Pipes Freeze in Winter

Learn how to handle frozen pipes this winter.

cold winter street with snow

Frozen pipes are a common issue during the colder months and can lead to significant damage if left untreated. When water inside the pipes freezes, it expands, creating pressure that can cause the pipes to burst. Fortunately, there are steps you can take to address frozen pipes and, better yet, to prevent them in the future. Here’s a guide to help you handle frozen pipes and keep your plumbing safe throughout winter.

Signs Your Pipes Are Frozen

Before attempting any fixes, it’s essential to confirm that your pipes are indeed frozen. Common signs include:

  • No Water Flow

    : If you turn on the taps and only a trickle of water comes out (or no water at all), it could mean that the pipes feeding that tap are frozen.

  • Frost on Pipes

    : Visible frost or ice on exposed pipes is a clear indication that freezing has occurred.

  • Unusual Sounds

    : If you hear odd banging or gurgling noises when you turn on the tap, it may be due to ice blockages within the pipes.

Steps to Thaw Frozen Pipes Safely

If you find a frozen pipe, it’s important to act quickly to prevent a burst. Here’s what you should do:

  1. Turn Off the Water Supply Start by turning off the water at the stopcock to prevent water from flowing through the pipes. This helps avoid leaks or bursts if the pipe cracks while thawing.

  2. Open the Tap Open the tap nearest to the frozen section. This allows the thawed water to flow out, helping to relieve pressure in the pipe.

  3. Warm the Frozen Section Slowly

    • Use a Hairdryer

      : Starting at the tap end and working toward the frozen section, gently warm the pipe using a hairdryer. Avoid applying heat directly to one area for too long, as this could damage the pipe.

    • Warm Towels

      : Wrap the frozen pipe in warm (not boiling) towels to slowly thaw the ice. Re-wet the towels with warm water as needed.

    • Heating Pad

      : If available, wrap an electric heating pad around the pipe, again starting from the tap end and moving along the frozen section.

  4. Check for Leaks as the Pipe Thaws As the pipe begins to thaw, watch carefully for any leaks or cracks that may have developed. If you find any leaks, keep the water supply off and call a plumber to repair the damaged section.

Prevention Tips to Avoid Frozen Pipes

While it’s good to know what to do when pipes freeze, prevention is always the best approach. Here are some effective ways to protect your pipes from freezing:

  1. Insulate Your Pipes Use pipe insulation or lagging to cover any exposed pipes, especially those in unheated spaces like lofts, basements, or garages. Foam lagging sleeves are widely available and provide an affordable way to keep pipes warm.

  2. Keep the Heating On During extremely cold periods, keep your heating on at a low level, even if you’re away from home. This helps to keep the temperature in the house above freezing and can prevent pipes from freezing.

  3. Open Cabinet Doors In colder parts of the house (e.g., kitchens or bathrooms near outside walls), open cupboard doors to allow warm air to circulate around pipes.

  4. Allow Taps to Drip Allowing a very slow drip from taps can help relieve pressure in the system and prevent pipes from bursting if they freeze.

  5. Seal Gaps and Cracks Inspect your home for any drafts or cold air seeping in, particularly around where pipes enter the house. Use sealant or weather-stripping to block out cold air that might reach vulnerable pipes.

  6. Keep the Loft Insulated Make sure your loft is well insulated, as this will help to regulate the temperature throughout the house and prevent pipes in the loft from freezing.

What to Do If a Pipe Bursts

Despite your best efforts, if a frozen pipe does burst, here’s what to do:

  1. Turn Off the Water Supply Immediately Locate the stopcock and shut off the water to prevent further flooding.

  2. Drain the System Open all taps to drain any remaining water from the system, reducing the pressure in the pipes.

  3. Call a Plumber Frozen pipes can sometimes cause extensive damage that requires professional repair. Call a plumber to assess the damage and make necessary repairs.

  4. Use a Mop and Towels for Clean-Up If there’s water leakage, use a mop, towels, or a wet vacuum to clean up as much as possible to prevent water damage to floors and walls.

Final Thoughts

Frozen pipes are a hassle, but with proper preparation and a few preventive measures, you can significantly reduce the risk of them happening in your home. Insulate exposed pipes, keep your heating on during cold snaps, and remember to act quickly if you suspect a pipe has frozen. Following these tips will help keep your plumbing system safe and functional, even during the chilliest winter months.

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