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How Do You Winterize a Home to Prevent Pipe Damage?

Last updated October 26, 2026

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The short answer

Insulate Exposed Pipes

Pipes in unheated areas like basements, attics, garages, and crawl spaces are most at risk. Wrap them with foam pipe insulation or heat tape. Make sure the insulation covers all joints and fittings, since cold air can sneak in through gaps.

Pay extra attention to pipes near exterior walls. Even a small gap in insulation can let freezing air reach the pipe. For extra protection, use insulation with a higher R-value. If you have pipes in a garage, keep the garage door closed as much as possible during cold snaps.

Keep the Heat On

Set your thermostat to at least 55 degrees Fahrenheit, even when you are away. This keeps the interior warm enough to prevent most pipes from freezing. Keep cabinet doors open under sinks to allow warm air to circulate around the pipes.

If you have a room that is rarely used, close the door but keep the heat vent open. Avoid turning off the heat entirely, as a single cold night can cause a burst. If you are leaving for an extended period, ask someone to check on the home regularly.

  • Set thermostat to at least 55F
  • Open cabinet doors under sinks
  • Keep garage doors closed
  • Seal gaps around windows and doors
  • Insulate outdoor faucets with covers

Drain Outdoor Water Lines

Disconnect garden hoses and drain sprinkler systems. Shut off the water supply to outdoor faucets and open the valves to let water drain out. Leave the outdoor faucet open slightly to allow any remaining water to expand without pressure.

For in-ground irrigation systems, use an air compressor to blow out the lines or hire a plumber to do it. Drain pool and spa equipment according to the manufacturer's instructions. If you have a swimming pool, keep the pump running or drain it properly to avoid ice damage.

Seal Drafts and Cracks

Cold air can enter through cracks and gaps around windows, doors, and where pipes enter the home. Use caulk or spray foam to seal these openings. Check the foundation for holes where pipes pass through and fill them with expanding foam.

A drafty home lets cold air reach pipes that are otherwise protected. Use weatherstripping on doors and windows. If you feel a draft near a pipe, that is a sign of trouble. Sealing drafts not only protects pipes but also reduces your heating bills.

Know What to Do If a Pipe Bursts

If you discover a burst pipe, shut off the main water valve immediately. Then open all faucets to drain the system. This reduces the amount of water that can leak into your home. Turn off the electricity in the affected area if water is near outlets.

After the water is off, clean up standing water as quickly as possible to minimize damage. Dry the area with towels and fans. The pros can handle the cleanup and any structural repairs. If you live in Cincinnati, keep your shutoff valve location written down so you can act fast.

For professional help, see the water damage inspection, pipe leak cleanup, burst pipe cleanup, and structural repairs after damage pages.

  • Shut off the main water valve
  • Open all faucets to drain
  • Turn off electricity near water
  • Dry the area quickly
  • Call local water damage pros for cleanup

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Frequently asked questions

At what temperature should I worry about pipes freezing?

Pipes can freeze when the temperature drops to 20 degrees Fahrenheit or below, especially if they are exposed. Keep your home heated to at least 55 degrees. If the forecast shows extreme cold, let faucets drip to keep water moving.

Should I let my faucets drip during freezing weather?

Yes, letting a faucet drip can prevent pipes from freezing. The moving water is less likely to freeze, and the drip relieves pressure in the system. Drip both hot and cold lines, especially in areas with vulnerable pipes.

What should I do if a pipe freezes but hasn't burst?

Keep the faucet open and apply gentle heat to the pipe using a hair dryer or warm towels. Never use an open flame. If you cannot thaw it, shut off the water and call a plumber. Watch for cracks that may leak later.

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