Is it unreasonable for the property owner to share the pipeline dredging fee?

If it has not been used for more than 2 years, it shall be borne by the developer. More than 2 years shall be shared by the owner and the property.

According to the mandatory standard of "Regulations on Quality Management of Construction Projects"

Article 40

Under normal use conditions, the minimum warranty period of construction projects is:

(a) the reasonable service life of the building foundation engineering, foundation engineering and main structure engineering specified in the design documents;

(2) 5 years for roofing waterproof works, toilets, rooms and external walls with waterproof and anti-leakage requirements;

(3) The heating and cooling system consists of two heating periods and cooling periods;

(four) electrical pipelines, water supply and drainage pipelines, equipment installation and decoration works, for 2 years.

The warranty period of other projects shall be agreed by the employer and the contractor.

The warranty period of the construction project shall be calculated from the date when the project is completed and accepted.