The wall was smashed downstairs, and the tiles in the bathroom upstairs were broken. How to deal with it as property?

First, you have to find out who is responsible for this. When the owner is renovating, the property has renovation regulations, such as hitting the wall and tearing it down. The property has clearly defined which wall skins can be beaten. The owner downstairs is not responsible for the wall that can't be demolished without demolition. Because the stress points of the whole building are supported by reinforced concrete walls, columns and beams, bricks can't play a supporting role at all, and the owners downstairs are not so stupid to remove those walls and columns that rely on reinforced concrete, and it is difficult to remove them, so the responsibility lies with the property and urban construction company. When the building is built, the frame structure is not done well, and the building itself has potential safety hazards. You should go to see your neighbors on the same floor, see if they have the same situation as you, and then go together.

In addition, many buildings are prone to cracks after 3-5 years of plugging, and this problem is also very common. You can also find the original decoration company, ask the reason and let them solve it.