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The Journal

Winterize Your Home Before the Freeze

The HearthIQ TeamJul 3, 2026 · 5 min read

When the temperature drops, small gaps and forgotten tasks turn into cold rooms and higher bills. A little preparation in fall keeps your home comfortable and lowers the chance of a burst pipe in the worst week of winter.

Seal the leaks first

Most heat escapes through gaps you can find in an afternoon. Walk each room and feel around windows, exterior doors, and outlets on outside walls. Add weatherstripping where doors let in a draft and a bead of caulk around window trim that has pulled away. It is the cheapest comfort upgrade you can make.

Protect your pipes

Pipes in unheated spaces like the garage, crawlspace, and exterior walls are the most likely to freeze. Wrap them with foam pipe insulation, disconnect and drain garden hoses, and shut off the water to outdoor spigots. On the coldest nights, let a faucet drip and open cabinet doors under sinks so warm air reaches the plumbing.

Ready your heating system

Replace the furnace filter, clear anything stored around the unit, and run the heat for a few minutes before you truly need it so any surprises show up early. If you have not had the system checked in a couple of years, a fall tune-up is worth it.

Before the first freeze

  • Replace the furnace filter and test the heat
  • Add weatherstripping to drafty doors
  • Caulk gaps around window trim
  • Insulate pipes in the garage and crawlspace
  • Disconnect and drain outdoor hoses
  • Reverse ceiling fans to clockwise on low
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What helps

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Common questions

How cold does it need to get before pipes freeze?

Pipes are at real risk once the outside air drops to around 20 degrees Fahrenheit, sooner for pipes in uninsulated spaces or exterior walls. Letting a faucet drip on those nights keeps water moving and lowers the risk.

Do I really need a professional furnace tune-up every year?

You can handle filters and basic clearing yourself. A professional inspection every one to two years catches worn parts and safety issues like cracked heat exchangers that you cannot see from the outside.

Ask about my heating system“Based on my home, what should I do to get my heating system ready for winter, and when was my furnace filter last replaced?”
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