For homeowners in cold climates, winter brings more than just snow shoveling and icy driveways. One of the most frustrating and potentially damaging cold-weather issues is a . Unlike a frozen supply pipe (which bursts under pressure), a frozen drain pipe creates a silent, messy backup that can flood your basement or yard.
If you currently have a frozen pipe, here is a review of the common methods to fix it: frozen drain pipe outside
Stay warm, and keep those drains flowing. For homeowners in cold climates, winter brings more
Call a licensed plumber if:
As water freezes, it expands by roughly 9%, which can cause plastic or metal pipes to bulge or appear warped. Safe Ways to Thaw a Frozen Drain Pipe If you currently have a frozen pipe, here
While drain pipes rarely burst from ice expansion (because they are not sealed pressure vessels), they do fail at joints. The real danger is your basement, yard, or living space.
| Feature | Frozen Supply Pipe | Frozen Drain Pipe | |---------|--------------------|--------------------| | Pressure | High (40–80 psi) | Low (gravity, <2 psi) | | Burst risk | Very high | Low (but joints may separate) | | Mess | Leak inside walls | Sewage backup into home | | Thawing | Heat tape / torch (careful) | Steam / hot water / heat gun |