Is there any obligation to maintain the doors and windows of buildings?

The landlord's personal doors and windows and property have no obligation to maintain. According to the property management regulations and the service contract signed between the property and the owner, the responsibility scope of the property is public parts and facilities. Therefore, the property maintenance should be the doors and windows in the fire escape and lobby, not the doors and windows owned by the owner. In fact, as long as you remember one sentence, everything owned by individuals, for personal use, does not belong to the scope of property maintenance.