Frozen Water Lines Prevention

Why do lines freeze, and why is the country more at risk?

Water freezes when pipes are exposed to cold for long enough. In rural settings lines are often long, run outside heated space and may be buried at uncertain depths. Pump houses, crawl spaces, barns and outbuildings are especially vulnerable. Wind, power outages and long cold snaps make it worse.

Frost depth varies by region and by soil. Your local building or extension office can tell you what depth is typical for your area. Do not guess at depth when deciding on new lines.

What should I do before winter?

Walk the property in fall and trace every pipe that is exposed or lightly buried. Insulate exposed lines, seal gaps that let cold air into crawl spaces and pump houses and make sure vents, doors and covers close properly. Disconnect and drain garden hoses, and shut off and drain outdoor spigots where possible, or use covers designed for them.

Check that any heat source in a pump house or utility space is installed safely and rated for the use. Ask your fire department or extension office about safe heat sources, because poorly chosen heaters cause fires.

Look under sinks on exterior walls and in any unheated bathroom as well. Those are the spots where pipes most often freeze inside a house.

• Insulate exposed pipes and seal drafts
• Drain hoses and shut off outdoor spigots
• Check pump house doors, vents and insulation
• Use only safe, properly rated heat sources

How do I protect livestock and outdoor water?

Animals need water in winter. Plan for heated waterers or regular breaking of ice, and place waterers where lines are protected. Keep cords and heaters rated for outdoor use and out of animals' reach, since damaged cords and wet conditions create shock and fire risks.

Have a backup plan if the power goes out, such as stored water and a way to carry it. Ask your veterinarian or extension office for guidance on winter water needs of the animals you keep.

What should I do in a hard freeze?

When a severe cold snap is forecast, check the weather service and prepare. Some households let a tap drip to keep water moving, but ask a plumber whether that suits a well and septic system, since constant flow adds to the load. Open cabinet doors to let warm air reach pipes under sinks.

If the power may fail, know where your main shutoff is and how to use it. Keep a supply of drinking water on hand, and keep phone numbers for a plumber and for your electric provider.

What if a line freezes?

If water stops, suspect a freeze. Shut off the water at the main before you try to thaw anything, so a burst pipe does not flood the house when ice melts. Warm a frozen section gently with safe methods, such as warm air, and never use an open flame, which can start a fire or damage pipes.

Do not thaw a pipe if you cannot find where it is frozen or if it has already split. Call a plumber. A buried line that freezes may need a professional with proper equipment.

How do I handle a burst pipe?

Shut off the water at the main, turn off power to wet areas if you can do so safely, and move belongings out of the way. Photograph the damage for insurance and call a plumber. Ask your insurer what they need, since coverage and rules differ by policy.

After repair, ask whether the water needs testing before drinking, especially if a well or a pump house was involved.

What about the pump house and the outbuildings?

Pump houses are small, often poorly sealed boxes. Check the door seals, floor gaps and vents, and ask a contractor whether insulation or a safe heat source suits yours. In a power outage, heat can fail at the very moment the cold is worst.

For barns and sheds with a hydrant or waterer, think about frost free hydrants and about draining lines at the end of each day in the coldest weeks. Ask your extension office what works in your region, since frost depth and storm patterns differ.

Keep a short written freeze plan on the wall: where the shutoffs are, who to call and what to do first.

Last reviewed: November 12, 2026. Written by the Rural Farm Life Editorial Team. See our editorial policy.