If you want to distinguish water leakage, you can make an appointment to visit the property management office. When decorating, it is best to see the location of the water leakage point clearly and confirm whether there is perforation or removal around the water leakage point. If not, basically, if you just fan ash and build bricks, it will not affect the waterproof layer of the wall, so it is not because of the decoration that causes water leakage. If the wall cracks near the water leakage point, or there is water leakage at the outer wall, it is basically the cracking of the building structure, which is a problem of the house. If it is a new wall, it must be a decoration problem.
It is suggested to find good personnel from both sides to check the pass. Through analysis together, it is the best, and which party is responsible for the implementation.