No matter what the leaking property upstairs is like.

Legal analysis: you can bring a civil lawsuit to the court and demand compensation for losses. After finding water leakage, the injured party must first protect the scene and fix the evidence. For example, taking photos and videos to obtain evidence. You can find the residential property or community first, let them give their opinions, or let them consult with their neighbors upstairs for maintenance. Where there are other provisions in the law, those provisions shall prevail.

Legal basis: Article 119 of the Civil Procedure Law of People's Republic of China (PRC), the prosecution must meet the following conditions:

(1) The plaintiff is a citizen, legal person and other organization that has a direct interest in the case;

(2) Having a clear defendant;

(3) Having specific requests, facts and reasons;

(4) It falls within the scope of civil litigation accepted by the people's court and is under the jurisdiction of the sued people's court.