The Best Way to Keep Water Pipes From Freezing

The Best Way to Keep Water Pipes From Freezing

Freezing temperatures pose a significant threat to your home's plumbing system. When water freezes, it expands, creating immense pressure that can cause pipes to crack or burst. This can lead to extensive water damage, costly repairs, and significant inconvenience. Fortunately, taking proactive steps can effectively prevent pipes from freezing, safeguarding your home and peace of mind.

Proactive Steps for Winter Preparation

Before the coldest weather arrives, implementing preventative measures is key to avoiding frozen pipes.

Insulate Exposed Pipes

Pipes located in unheated areas like basements, attics, garages, or crawl spaces are most vulnerable. Insulating them is a primary defense.


  • Foam Pipe Sleeves: These are easy to install and fit snugly around pipes, providing an effective thermal barrier.

  • Fiberglass Insulation: For larger or irregular areas, fiberglass insulation can be wrapped around pipes and secured.

  • Heat Cable or Tape: For pipes in extremely cold or drafty locations, electric heat cables or tape can provide direct warmth. Ensure these are installed according to manufacturer instructions and are UL-listed.

Seal Air Leaks

Even small drafts can significantly lower the temperature around pipes. Inspect your home for any cracks or holes in walls, floors, and ceilings, especially where pipes enter. Use caulk or insulation to seal these openings, preventing cold air from reaching vulnerable pipes.

Disconnect Hoses and Drain Outdoor Systems

Garden hoses left connected to outdoor faucets can trap water that freezes and expands back into the spigot and interior pipes. Disconnect all garden hoses and drain them. If you have an outdoor irrigation system, follow the manufacturer's guidelines for winterization, which usually involves draining the system.

Know Your Main Water Shut-Off Valve

In an emergency, knowing how to quickly shut off your home's main water supply can minimize damage from a burst pipe. Locate your shut-off valve and ensure everyone in the householdknows how to operate it.

Strategies During Cold Snaps

When temperatures plummet, additional steps can help protect your pipes.

Maintain Indoor Temperature

Keep your thermostat set to a consistent temperature, ideally no lower than 55°F (13°C), even when you're away from home for short periods. This ensures that interior spaces, where pipes run, remain warm enough.

Open Cabinet Doors

For kitchen and bathroom pipes located in cabinets against exterior walls, open the cabinet doors. This allows warmer indoor air to circulate around the pipes, preventing them from freezing.

Let Faucets Drip

During extreme cold, allow a tiny trickle of water to drip from faucets, especially those on exterior walls. Moving water is less likely to freeze. A slow, consistent drip (a pencil-lead thin stream) is sufficient for cold and hot water lines.

Consider Supplemental Heat for Vulnerable Areas

If you have a particularly cold spot like a garage or utility room with exposed pipes, consider using a small space heater (with caution and adequate clearance from flammable materials) to raise the ambient temperature temporarily. Never leave space heaters unattended.

When Away From Home for Extended Periods

If you plan to be away for an extended time during winter, take extra precautions.


  • Keep the Heat On: Do not turn off your heating system completely. Set the thermostat to at least 55°F (13°C) to prevent the entire house from getting too cold.

  • Consider Shutting Off Water: For extended absences, you might consider shutting off your home's main water supply and draining the pipes by opening all faucets. This eliminates the risk of water damage from a burst pipe while you're gone. Consult a plumbing professional if you are unsure how to do this correctly.

By implementing these preventive measures, you can significantly reduce the risk of frozen and burst pipes, ensuring your plumbing system remains intact and functional throughout the winter season.