Why Do Pipes Burst in Cold Weather?

Water expands by about nine percent when it turns to ice. In a pipe, that expansion has nowhere to go, so pressure builds against the walls. Even a small amount of ice can create enough force to split metal or plastic pipes.

The risk rises when temperatures stay below freezing for several hours. Pipes in unheated spaces, such as crawlspaces, attics, or cabinets against exterior walls, cool fastest. A slow drip or a small leak can also let cold air reach more of the pipe surface, increasing the chance of a burst.

First, shut off your main water valve to stop the flow. Then open a few faucets to drain remaining water from the system. This reduces pressure and helps you see where the leak is coming from.

Next, take photos of the affected area for your records. Move furniture and valuables away from the water if you can. For significant water, the pros can help with extraction and drying to prevent secondary damage.

• Shut off the main water valve quickly.
• Open faucets to drain the pipes.
• Take pictures of the damage before cleanup.
• Move rugs, furniture, and boxes out of the way.
• Avoid using electrical appliances near standing water.
• Call a plumber for the pipe repair itself.

Once the pipe is repaired, the cleanup begins. Water can soak into drywall, wood floors, and carpets, so drying needs to happen quickly to avoid mold and warping. The pros use specialized equipment to extract water and dehumidify the space.

Depending on how much water soaked in, some materials may need replacement. Drywall and insulation often cannot be fully dried, and flooring may buckle. A water damage inspection can help you understand what is salvageable and what needs to go.

• Remove wet carpets and padding promptly.
• Use fans and dehumidifiers if you have them.
• Check for discoloration on walls and ceilings.
• Keep the heat on to speed up drying.
• Avoid walking on wet floors that may be slippery.
• Call the pros if water spread beyond a small area.