Insulate Pipes: Insulate hot and cold water pipes in the crawlspace below your household as well as in the basement, attic, and exterior walls (if accessible) with SnapOn foam insulation. Ensure foam insulation fits tightly devoid of openings.
 
Heat Pipes: Consider covering pipes with UL approved heat tape that has a built-in thermostat to avoid overheating. 

Sprinkler System: Turn off your sprinkler system, and drain all of the water out.

Drip Faucets: Drip both hot and cold water at faucets in the kitchen and bathroom. This not only keeps water flowing through the pipes, but releases built-up water pressure in the pipes if they should freeze. 

Laundry Room: If there isn’t a faucet in the laundry room to drip, set your washing machine on warm, and start the fill cycle occasionally for a few minutes to course water through the pipes.

Icemaker: Set your icemaker to make ice (if the icemaker water line runs under house).

Cabinets: Open cabinet doors below sinks in the kitchen and bath if the cabinets are found on exterior walls, to let inside heat to pipes.

Garage: Keep garage door closed during extreme cold weather. 

Foundation: For houses that have a crawlspace, make sure the foundation is completely enclosed, and fill any gaps in foundation walls with caulking or expanding foam. Close or cover the foundation vents under house.

Garden Hose: Disconnect and drain garden hoses.

Exterior Faucets: Either cover faucets with insulated foam covers, cut off water to exterior faucets and open faucets to drain pipes, or install exterior faucets that cut water supply off inside foundation walls.

After the cold weather is gone and you experience a lack of running water, you may have frozen of busted pipes. In this situation, you will need to call a plumber to check this for you.

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