There is water seepage in the bathroom of the house, which has passed the warranty period. Property management?

This problem does not belong to property management, because you bought the house from the developer, the public part is in the charge of the property management company, and the bathroom is your private property. You should find the developer at that time to solve it or solve it yourself. The warranty period of waterproof building is 5 years. If it is damaged within 5 years, contact the developer to help you repair it. If you don't help you solve it, you can go to the Quality Supervision Bureau to complain about the developer.