Keep your house heated to a minimum of 65 degrees. The temperature inside the walls where the pipes are located is substantially colder than the walls themselves. A temperature lower than 65 degrees might not keep the inside walls from freezing.
Check the location for the main water shutoff in your home. And refresh your memory on—or learn—how it works, in case you have to use it.
Open hot and cold faucets enough to let them drip slowly. In severely frigid temperatures, keeping water moving within the pipes will help prevent freezing.
Check that fireplaces, wood stoves and electric heaters are working properly. Make sure there are no combustible items near the heat sources and watch them closely, especially the first time in the season you use them.
Keep your fireplace flue closed when you’re not using it so that the chimney does not pull warm air out of the house
Ask a neighbor to check the house regularly any time you're away