The most common causes of roof leaks in Hamilton homes are flashing failures, ice dam formation, and aging or poorly installed shingles. Flashing around chimneys, skylights, and roof-to-wall transitions is one of the most common places for water to get in, especially on older homes where those details may be worn out or outdated. Ice dams can also form when heat escapes through the attic, melts snow on the roof, and causes it to refreeze near the eaves, forcing water back under the shingles. In Hamilton, repeated freeze-thaw cycles can make this worse. Proper attic ventilation, good flashing details, and timely repairs are some of the best ways to prevent recurring leaks.