Clearing A Frozen Drain Pipe =link= Jun 2026

If you can see the frozen pipe under a sink or in a basement:

Before you begin, review these safety rules to avoid injury or property damage: clearing a frozen drain pipe

If only one sink is backed up, the freeze is likely in the "P-trap" (the U-shaped pipe under the sink) or an auxiliary line running through an exterior wall. If you can see the frozen pipe under

✅ Safe methods: