How to repair a frozen pipe in winter

Frozen pipes are a common problem during winter, especially in regions where temperatures drop below freezing. As well as blocking the flow of water, they can lead to cracks or ruptures if not dealt with quickly. In this article, find out how to thaw and repair frozen pipes safely.

Why do pipes freeze?

Pipes exposed to the cold, such as those located in unheated spaces (attics, cellars or outdoors), are particularly vulnerable. When the water inside the pipes freezes, it expands, exerting pressure on the walls. If this pressure becomes too great, it can lead to cracks or ruptures.

Signs of frozen pipes

Before starting repairs, identify the signs that indicate a frozen pipe:

Water no longer flows or flows very weakly from the tap
Frosted areas or condensation appear on pipes
Unusual noises, such as cracking or whistling, may be heard.
The ambient temperature is well below freezing, which increases the risks

If you notice these symptoms, it’s time to act fast.

Steps for thawing and repairing frozen pipes

Step 1: Turn off the water and open the taps

Before starting any work, turn off the main water supply to avoid flooding in the event of a burst pipe. Also open the taps connected to the frozen pipe to allow water to flow out once the pipe has thawed.

Step 2: Locate the frozen section

Identify the affected portion of the pipe by looking for cold, icy or abnormally stiff areas. This step is crucial to focus your efforts on the problem area.

Step 3: Defrosting the pipe

Use a hair dryer: direct the hot air towards the frozen area, moving the appliance slowly. To avoid damaging the hose, do not heat a single spot directly.
Apply hot towels: Soak towels in hot water and wrap them around the pipe. Replace them regularly to maintain heat.
Heat the room: If the frozen pipe is in an unheated space, raise the ambient temperature using a radiator or heater.

Step 4: Inspect for damage

Once the pipe has thawed, inspect it carefully for cracks or breaks. Any leaks should be repaired immediately.

Step 5: Repairing the damage

For a small crack: Apply epoxy paste or repair tape to seal the leak temporarily.
For a damaged section: Cut out the damaged section and replace it with a new one using suitable fittings. Make sure the fittings are well sealed with Teflon tape.

Preventing pipes from freezing in the future

Insulate your pipes: Wrap exposed pipes with insulating sleeves or foam to prevent them from freezing.
Maintain a constant temperature: Slightly heat uninsulated areas where pipes run, even in winter.
Leave a trickle of water running: In very cold weather, leave a tap slightly open to keep the water flowing, thus reducing the risk of freezing.

When to call in a professional?

If you are unable to thaw the pipe, or if the pipe is severely damaged, it’s best to call in a qualified plumber. A professional can diagnose the problem, make the necessary repairs and advise you on preventive measures.

Call on Leader Services for your frozen pipes

At Leader Services, we intervene rapidly throughout Belgium to defrost and repair your pipes. Our experts have the necessary tools and experience to guarantee safe and reliable work. Visit our plumbing page to find out more, or contact us using the form on this page.

Conclusion

Frozen pipes can cause major inconvenience if not dealt with quickly. By following these steps and taking preventive measures, you can avoid more serious damage. For a professional and lasting repair, trust Leader Services.