A water main can burst due to a variety of factors, but one of the most common reasons for it is extreme temperatures. Very high temperatures cause the ground to expand, which adds a lot of unnecessary stress on the water main. Eventually, this causes cracks to develop along the pipe, leading to the pipe bursting later on.Water main breaks can occur anywhere, but when they occur in residential areas, the consequences are a bit more problematic. The flood that follows a water main break can easily fill the streets and cause extensive water damage to Pasadena homes in the vicinity. This risk of water damage substantially increases in homes with basements.