The sewer is blocked, regardless of the residential property.

Legal analysis: 1. As long as the location of pipeline blockage is in the business, that part does not belong to public facilities, even if its function is to undertake the use of multiple owners, it does not belong to the scope of property services. 2. The property management company has the obligation to maintain the equipment and facilities outside the owner's house, such as pipeline wells, underground garages and equipment mezzanines. If the property management company fails to fulfill its obligations, it can bring a civil lawsuit to the local court. To sum up, from the perspective of humanization and quality property services, the problems you described are not big problems. It is not difficult to dredge and maintain the indoor main sewer fence. Some property companies will help owners solve such difficulties for free or paid, but this kind of non-compulsory help will often lead to more subsequent troubles, such as: 1. Dredging equipment needs to enter the pipeline from the manhole, but the manhole is decorated and closed by the owner, and the property company is required to pay compensation for restoration after demolition; 2. If someone thinks that knowledgeable person, the owner of the property industry, will take it for granted that this is the obligation of the property company, once he assists in handling it, he will spend a lot of energy to deal with unreasonable demands such as congestion and compensation caused by maintenance.

Legal basis: Article 10 of the Property Management Regulations stipulates that the owners in the same property management area shall, under the guidance of the real estate administrative department of the district or county people's government where the property is located, set up the owners' meeting and elect the owners' committee. However, if there is only one owner, or if the number of owners is small and all owners agree unanimously, it is decided not to set up the owners' meeting, and the owners will jointly perform the duties of the owners' meeting and the owners' committee.