Burst or Leaking Pipe Water Damage
A burst or leaking pipe can release a significant amount of water in a short time. Shutting off the water at the main or local shut-off valve, if it is safe to do so, is generally the first step, followed by assessing which areas were affected.
Common causes
Pipes can burst or leak due to freezing temperatures, corrosion, high water pressure, aging plumbing, or physical damage such as a nail or drill puncturing a line inside a wall.
What to do first
If safe to reach, shut off the water supply at the affected fixture's valve or at the home's main shut-off valve. Avoid contact with standing water near electrical outlets or equipment. If the leak is inside a wall or ceiling and not immediately accessible, avoid attempting to cut into the structure yourself.
Why prompt attention matters
Because pipe leaks can affect flooring, walls, and ceilings, and because mold can begin developing within roughly one to two days in favorable conditions, addressing the water and beginning drying promptly can help limit the extent of damage.
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Frequently Asked Questions
What should I do first when a pipe bursts?
Shut off the water at the fixture's valve or the home's main shut-off valve if it is safe to reach. Avoid standing water near outlets or electrical equipment, and do not cut into a wall or ceiling yourself to reach a hidden leak.
Why do pipes burst in cold weather?
Water expands as it freezes, which increases pressure inside the pipe. That pressure can rupture the pipe wall or push apart a joint, and the leak often becomes apparent when the ice thaws and water begins flowing again.
How long can I wait before addressing a pipe leak?
Mold can begin developing within roughly 24 to 48 hours in favorable conditions, and water continues moving into flooring, walls, and ceilings the whole time. Addressing the water and beginning drying promptly generally limits the extent of the damage.