Frozen Pipe Water Damage Guide for Minnesota Winters

Prevention costs almost nothing. A thawed, split pipe can soak three levels of a house.

Before the cold arrives

  • Disconnect and drain garden hoses. Close the interior valve to outdoor spigots if you have one.
  • Seal gaps where pipes, cables and vents pass through exterior walls and rim joists.
  • Insulate pipes in crawl spaces, garages and along exterior walls.
  • Find your main shutoff and make sure it turns.

During a cold snap

  • Keep the thermostat steady day and night.
  • Open cabinet doors under sinks on exterior walls.
  • Let cold and hot taps on vulnerable lines run at a slow drip.
  • Keep the garage door closed if water lines run through it.

If you are leaving town

  • Set the heat to at least 55 degrees.
  • Shut off the main water supply and open faucets to drain pressure.
  • Ask someone to walk through every couple of days.
  • Consider a low-temperature alarm.

Thawing a frozen pipe

Open the faucet first. Apply gentle heat starting at the faucet end and working back: a hair dryer, a heating pad or a space heater in the room. Never use a flame. Stay with it. If water starts to leak as it thaws, close the main.

If it bursts

Close the main, cut power to wet areas if safe, and take photos. A plumber repairs the pipe. We handle frozen pipe water damage cleanup, including wet insulation in exterior walls.

Pipe already thawed and leaking?

Shut off the main and send a request.

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