How to Handle Sub-Zero Temperatures in the Chicagoland Area

Pine trees trunks in winter forest with ground full of snow

Winter in the Chicagoland area can be downright brutal, with sub-zero temperatures posing significant challenges to your plumbing system. While the snowflakes may look pretty, the damage freezing weather can do to your pipes is anything but. Aqua Knight Plumbing is here to share essential tips to keep your plumbing safe during the year’s coldest months.


1. Insulate Your Pipes

Frozen pipes are one of the most common issues during sub-zero temperatures.

  • Use foam pipe insulation to cover exposed pipes in basements, crawl spaces, and attics.
  • Consider wrapping heat tape around vulnerable pipes for extra protection.

Pro tip: Don’t forget outdoor faucets! Shut off water supply lines to these fixtures and cover them with faucet protectors.


2. Keep Water Moving

When temperatures plummet, standing water in pipes can freeze.

  • Leave a trickle of water running from faucets, especially at night when temperatures are lowest.
  • Use both hot and cold water to maintain a steady flow through the pipes.

This small step can save you from dealing with burst pipes and costly repairs.


3. Seal Drafts

Cold air seeping in from cracks or gaps can make pipes more likely to freeze.

  • Check areas near windows, doors, and exterior walls for drafts.
  • Use weatherstripping or caulk to seal these gaps and keep the cold air out.

4. Maintain Indoor Temperatures

Even if you’re planning to be away, never let your home’s temperature drop below 55°F.

  • Open cabinet doors under sinks to allow warm air to circulate pipes.
  • Invest in a smart thermostat to ensure consistent heating throughout your home.

5. Know Where Your Main Water Shut-Off Valve Is

In case a pipe bursts, knowing how to quickly shut off your water supply can prevent extensive damage.

  • Locate your main water shut-off valve ahead of time.
  • Make sure everyone in your household knows where it is and how to use it.

If you’re not sure where to look, Aqua Knight Plumbing can help you locate and test it.


6. Check Your Sump Pump

Sub-zero weather can also cause sump pump discharge lines to freeze, potentially leading to basement flooding.

  • Inspect your sump pump regularly to ensure it’s working properly.
  • Install a freeze-resistant discharge line or an auxiliary backup.

7. Schedule a Plumbing Inspection

An ounce of prevention is worth a pound of cure. Let Aqua Knight Plumbing perform a thorough inspection of your plumbing system before winter hits.

  • We’ll check for vulnerable pipes, inspect your water heater, and ensure everything is in top-notch condition to withstand Chicago’s harsh winter.

Emergency? Call Aqua Knight Plumbing!

Even with the best precautions, accidents can happen. If you’re dealing with frozen pipes, burst lines, or any other plumbing emergency, call Aqua Knight Plumbing at 630-755-0583. Our team is ready to brave the cold to keep your home safe and warm.


Don’t let sub-zero temperatures freeze your plans. With these tips and a little help from Aqua Knight Plumbing, you can keep your plumbing system running smoothly all winter long.

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