Winter storms can be blistery cold. When the temperatures drop down and stay down into the lower teens pipes tend to freeze. Water expands as it freezes and this put tremendous pressure on the pipe. It does not matter if the pipe is metal or plastic. Often times people do not know they have a frozen pipe until it bursts. One of the most common frozen pipes we find are pipes that are exposed to the elements of the outdoors like; hose bibs, water sprinkler lines and swimming pool pipes. If people winterize those pipes properly it helps eliminate those pipes from freezing. The number one source of frozen pipes we see are from water supply lines that are in the interior of the home but are not a heated space like; crawlspaces, basements, attics and garages. The second most common frozen pipes are from pipes that run along exterior walls of the home/building.