How Do I Safely Thaw a Frozen Pipe?

Turn off the main water shutoff valve to prevent pressure buildup and reduce the chance of a burst. Open the faucet that the pipe feeds so water can escape as the ice melts. This also helps you know when the pipe is clear, as water will begin to flow.

Apply heat gently. Use a hair dryer on low heat, a heating pad, or towels soaked in warm water. Start near the faucet end and move toward the frozen section. Keep the heat moving to avoid overheating one spot. Never use a blowtorch, propane heater, or charcoal stove, as these can damage the pipe or start a fire.

• Turn off the main water valve first
• Open the faucet to relieve pressure
• Use a hair dryer or heating pad
• Start near the faucet and work toward the ice
• Never use an open flame
• Check for leaks after thawing

Pipes freeze when temperatures drop and water inside them turns to ice. Insulate exposed pipes in unheated areas like attics, crawl spaces, and garages. Keep garage doors closed and open cabinet doors under sinks to let warm air circulate around the plumbing.

On very cold nights, let a trickle of water run from faucets that are served by exposed pipes. Moving water is less likely to freeze. If you plan to be away, set the thermostat to at least 55 degrees Fahrenheit and consider shutting off and draining the water system.

Even if the pipe did not burst, thawing can reveal small leaks. Check the pipe and surrounding area for dampness, discoloration, or dripping. If you spot water damage, such as stained drywall, swollen flooring, or a musty smell, you may need professional cleanup.

The pros can handle pipe leak cleanup and dry out affected materials. They use industrial fans and dehumidifiers to prevent mold growth. Water damage can worsen over time, so addressing it soon after the thaw helps protect your home.