Water seepage on the external wall of the house caused damage to the floor of the internal wall of the room.

If it is really a housing quality problem, you can directly sue the developer and ask him to bear all the maintenance responsibilities.

It should be the quality problem of the house and should be solved through consultation with the developer. If not, it should be settled through litigation.

Hello, according to what you said, it can be preliminarily determined that this house is defective. Consider suing the property and the seller. If it is necessary to find out the cause of water leakage in the lawsuit, it is necessary to entrust an appraisal to determine the cause. For the damaged floor, the responsible person should also pay compensation. This reply is for reference only. If this reply is helpful to you, please adopt it as the correct answer.

After being appraised by a judicial appraisal center with the qualification of house decoration appraisal, according to the Regulations on Housing Quality Warranty of Construction Projects, construction contractors and developers are required to assume responsibilities and compensate for losses within the warranty period stipulated by law.

It is suggested to employ a technical inspection agency to identify the water seepage problem of the house and issue an appraisal report. On the basis of the appraisal report, select the main body responsible for the transformation from the construction unit, developers, vendors and property management companies and negotiate. If negotiation fails, we can bring a lawsuit to the court.

Please ask a special testing station for testing (but this kind of testing is usually destructive). In order to determine whether there is a housing quality problem. If it is a housing quality problem, the developer should bear the responsibility.

If it is really a housing quality problem, you can directly sue the developer and ask him to bear all the maintenance responsibilities.