The foundation of external wall cleaning in Sichuan belongs to the nature of property hygiene.

Industry standard, contract agreement and actual operation.

1. industry standard: according to the relevant national and local industry standards and regulations, the property sanitation work usually includes the cleaning and maintenance of the public areas outside and inside the building. These areas include but are not limited to roads, sidewalks, green belts, public facilities, corridors and halls. Therefore, as a part of the public area outside the building, the external wall should be included in the scope of property sanitation work.

2. Contract agreement: In a property management contract, the scope and content of property services are usually clearly agreed. If the external wall cleaning service is included in the property management contract, it is part of the property sanitation work.

3. Practical operation: In practice, property management companies are usually responsible for managing and maintaining the cleanliness of public areas inside and outside buildings. This includes regular cleaning and washing of external walls to keep the appearance of buildings clean and hygienic. Therefore, from a practical point of view, external wall cleaning also belongs to the category of property sanitation work.