How to deal with water seepage on the wall by the window?

The contact part between the window frame and the wall is not tightly sealed: the gap can be filled with waterproof mortar or styrofoam, and the inside and outside of the window can be coated with waterproof sealant respectively. Window glass sealing strip is not tight: replace sealing strip or reapply sealant. The sealing strip on the window frame is defective: the sealing strip needs to be replaced again.

Before the window is rebuilt, measure the size of the window first, and don't buy big or small before buying. The normal window size should be measured twice, once in front of the window and once after the window is removed to prevent the window from not matching the frame.