Without property management, there are quality problems in old buildings that have exceeded the maintenance period. What department should I find to deal with them?

This first depends on the nature of property rights.

First, if it is a right-to-use house, that is to say, if the property right of your house belongs to a state-owned enterprise or department and you rent it from the unit, then directly find the property right unit and let them repair it.

Second, if it is a property right house, then since the warranty period has passed, it is generally useless to find a construction unit or developer. But it depends on what kind of quality problems you have now.

Assuming that there is general wall leakage and indoor paint falls off, it is suggested to find the industry Committee and let them take the lead in consulting all owners whether to use the maintenance fund for overhaul. If there is no industry Committee, then set it up quickly. If there is no maintenance fund, everyone can only contribute. However, if you have financial difficulties, you can seek some help from the local government departments. It's hard to say if it's awesome.

Suppose you encounter problems such as replacing steel bars with bamboo chips, you can complain directly to the local government department or obtain evidence directly from the local people's court.