What kind of responsibility should the property with water seepage on the external wall of the house bear?

During the warranty period, the developer should be responsible for the maintenance of the external wall seepage problem, and the property has no responsibility to enter. You can ask the property to help find maintenance personnel.

1, because the window frame gap was not filled with mortar during window construction, water infiltrated from the window frame. Try to make a circle around the windowsill with glass glue, because the windowsill pressure plate is easy to seep, so pay more attention there; You can also use the waterproof transparent paint brush on the outer wall to make it waterproof around the window sill.

2. At present, almost all the walls are concrete hollow bricks. If the external wall is pasted with small-sized tiles, there are too many gaps, which are more likely to lead to leakage due to inadequate waterproof treatment. The general solution is to brush waterproof paint on the outer wall.