Keep the house warm. The temperature in your house should be at least 65 degrees. The temperature inside the walls where the pipes are located is substantially colder than the walls themselves. Temperatures lower than 65 degrees will not keep the pipes from freezing.
Check heating systems. The proper use and maintenance of furnaces, fireplaces and wood-burning stoves can prevent fire and smoke damage. Have furnaces, boilers and chimneys serviced at least once a year. Make sure that smoke and fire alarms are working properly and consider installing a carbon monoxide detector.