Pour boiling water mixed with a cup of salt down the drain. Salt lowers the freezing point of ice. ⚠️ Important Safety Precautions
Is the frozen section (like in a basement) or hidden behind a wall? Do you see any visible cracks or bulging in the pipe? how to fix frozen drain pipe
A plumber will use commercial thawing machines (low-voltage electrical thawing) or steam equipment to clear the line safely and quickly. The cost ($150–$500) is far less than the cost of flood damage or sewer backup cleanup. Pour boiling water mixed with a cup of salt down the drain