Are you looking for a developer or a property for problems such as leaking ceiling and wall cracking in the master bedroom bathroom?

1. If it is confirmed that it is caused by the upstairs decoration, then you should ask the upstairs to redo the waterproof decoration, compensate your losses, and sue if necessary.

2. When you say that the wall is cracked, it means that the cement wall on the wall has cracks; Or the whole wall is cracked, can you see the steel bars inside the wall? Cracks in the cement wall are normal. But if the wall cracks, it is a quality problem. You can go to the Housing Appraisal Center of Zhongshan Construction Bureau and ask them to come and help you with the appraisal. Confirmed as a project quality problem, you can ask the developer to return a house and claim compensation.