A patio door is a beautiful addition to any home, providing an elegant entrance to your backyard or patio area. However, one common problem that homeowners may encounter with their patio doors is water leakage. If you notice water seeping in through your patio door, it can be frustrating and concerning, as water damage can lead to costly repairs. There are common causes of water leakage in patio doors and what you can do to fix the issue.