01/23/2026
The Midwest "Polar Vortex" isn’t just a test of your winter coat—it’s a trial by fire (or ice) for your plumbing. When the temperature drops into the negatives, water expands as it freezes, and that pressure is often more than a copper or PEX pipe can handle.
Here is your survival guide to keeping the water flowing and the floors dry.
1. The "Open Door" Policy
Heat needs to reach the places it usually doesn't.
Cabinet Doors: Open the doors under your kitchen and bathroom sinks. This allows the warm air from your home to circulate around the pipes hidden inside the vanity.
Interior Doors: Keep doors to laundry rooms or mudrooms open if they share an exterior wall.
2. Let It Drip
Stagnant water freezes; moving water struggles to.
The Slow Drip: You don’t need a stream—just a consistent "drip-drip-drip" from the faucet furthest from your water main.
Focus on Exterior Walls: Prioritize faucets that are located on walls facing the outside.
Both Temps: If you have a single-handle faucet, set it to a lukewarm mix to ensure both the hot and cold lines are moving.
3. Seal the Drafts
Cold air behaves like a laser; if it finds a tiny hole in your siding or foundation near a pipe, it will freeze that pipe in minutes.
Check the Rim Joist: Look in your basement or crawlspace where the house meets the foundation. Stuff some insulation into any gaps where you feel a breeze.
Outdoor Faucets: Ensure hoses are disconnected and the outdoor shut-off valve is closed (and drained).
4. The Golden Rule of Thermostats
Now is not the time to be a hero with your heating bill.
Keep it Steady: Avoid "setback" programming where the heat drops at night. Keep your thermostat at a consistent temperature (at least 65°F) day and night.
Vacation Mode: If you’re heading out of town, never set the heat lower than 55°F.
🚨 What to do if a pipe freezes
If you turn on the faucet and only a trickle comes out, you likely have a freeze.
Keep the faucet open: As you melt the ice, the water needs a place to go.
Apply gentle heat: Use a hairdryer, an electric heating pad, or a space heater (monitored).
Avoid open flames: Never use a blowtorch or propane heater. You’ll trade a plumbing problem for a fire department problem.
Know the Main Shut-off: Locate your main water shut-off valve now. If a pipe has already cracked, it will start leaking the moment it thaws. You need to be ready to kill the water instantly.
