♂? Property is responsible for maintenance.
The property is responsible for maintenance. You can use the maintenance fund. If it is a new commercial house, the developer is responsible for the warranty.
The warranty developer is responsible for compensation.
The warranty developer is responsible for compensation. It has nothing to do with property. Not responsible for compensation outside the warranty period.
Treatment method of external wall leakage
Generally, the seepage of external wall is mainly treated from the external wall, not the internal wall. You can find a waterproof and plugging company to do it for you and give you a warranty, which is better. The performance and construction practice of the materials used are good, and the treatment of the inner wall surface can not cure the water seepage.