Call 12345 who is responsible for complaining about the damage of the external wall of the commodity building?

Generally, the urban construction departments of local cities and districts (called Urban and Rural Construction Bureau in many places) have secondary institutions directly under them, which are responsible for the quality and safety of construction projects (for example, we call it * * City Construction Engineering Quality Supervision Station here) and can directly complain to relevant departments (complaint hotline, mayor's mailbox, city message board, first-line media, etc.). ). Urban and rural construction departments are generally only responsible for the quality supervision of the construction process, and the completion acceptance is the main responsibility of the project quality supervision station. If the acceptance is passed, it means that the quality is not much.

Secondly, the quality warranty period of the developer of the construction unit. If there are quality problems, the developer is responsible for maintenance, and the quality problems involved have to be found by the construction unit or developer. At this time, you should complain to the local housing management department (usually the Housing Security and Housing Administration).