Who needs to repair the cracks in the flue at home?

Self-maintenance and property maintenance.

1. Self-maintenance: the flue at home has a small crack, which belongs to the indoor flue and can be maintained by itself. Before maintenance, it is necessary to know the material and structure of the flue, and choose the appropriate maintenance methods and materials.

2. Property maintenance: it belongs to the external use of the house, and the maintenance is organized by the property management, and the expenses are borne by the owner. The property management company has the obligation to maintain and repair the public facilities in the community, including the maintenance of the flue.