Frozen Drain Pipe — How To Fix

Plastic transfers heat poorly and melts easily.

Feel for sections that are significantly colder than others or have visible frost on the exterior. 🔥 Step 2: Thawing Methods how to fix frozen drain pipe

Before you begin repairs, confirm the symptoms. A frozen drain pipe typically presents differently than a frozen water supply line: Drainage pipes frozen: Why do drains block in winter? Plastic transfers heat poorly and melts easily

Place a heat lamp near the wall where the pipe is located. A frozen drain pipe typically presents differently than

Once water flows normally, flush the line with a gallon of warm water mixed with a small amount of dish soap. This helps clear any debris that was trapped behind the ice.

If one sink drains but another doesn't, the freeze is in a branch line. If no drains work, it is likely the main stack.