What if the wall falls off and the property is insulated?

This is the responsibility of the property management company

The cost depends on whether the warranty period has expired, as follows

According to Article 31 of the Property Management Regulations, "the construction unit shall undertake the warranty responsibility of the property according to the warranty period and scope stipulated by the state". Property warranty responsibility refers to the responsibility of the construction unit to repair the quality defects that do not meet the mandatory standards of engineering construction and the contract during the warranty period after the property is completed and accepted. The Regulations on Quality Management of Construction Projects, Measures for Quality Assurance of Housing Construction Projects, Residential Quality Guarantee and Residential Instruction Manual all clearly stipulate this. In order to distinguish the different responsibilities of property service enterprises and construction units for property maintenance, the property management regulations further clarify the responsibility of the construction units for property maintenance, which shall be undertaken in accordance with the warranty period and scope stipulated by the state, and the property maintenance beyond the warranty period and scope shall be undertaken by the property service enterprises in accordance with the provisions of the property service contract.

A, according to the the State Council order [2000] No.279 "construction engineering quality management regulations" and the Ministry of construction order [2000] No.80 "housing construction engineering quality warranty measures" provisions of the warranty scope and warranty period.

(a) under normal use, the minimum warranty period of housing construction projects is:

1, foundation and main structure engineering, which is the reasonable service life of the engineering specified in the design documents;

2, roofing waterproof project, bathroom, room and exterior wall waterproof requirements, for 5 years;

3. The heating and cooling system consists of two heating periods and cooling periods;

4, electrical system, water supply and drainage pipelines, equipment installation for 2 years;

5. The renovation project lasts for 2 years.

The warranty period of other projects shall be agreed by the construction unit and the construction unit. The warranty period of housing construction project is calculated from the date when the project is completed and accepted.