When temperatures fall below zero, water inside household pipes can freeze quickly—especially in unheated spaces like garages, basements, crawl spaces, and exterior walls. Frozen pipes may expand, cracking the pipe or damaging fittings, leading to leaks and water damage when the system thaws.
Start before the cold peaks
The most effective protection happens early. Insulate pipes that run through—or near—cold areas, including supply lines to outdoor faucets, water heaters, and sections behind cabinets. Use foam pipe sleeves or wrap insulation rated for cold weather, and add protection where pipes pass through walls and floors.
Next, identify “high risk” areas: any exposed plumbing, pipes near windows or exterior doors, and locations where air drafts reach. Seal gaps around pipe penetrations with caulk or expanding foam to reduce cold air infiltration. If you have shutoff valves, mak ... Read more »

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