There are cracks in the house my family just bought. No matter what the property is, which department should manage it?

There is a crack in the house you just bought, and the developer of the house can repair it.

According to Article 9 of the Measures for Quality Warranty of Housing Construction Projects, if there are quality defects in housing construction projects during the warranty period, the construction unit or the owner of housing construction shall issue a warranty notice to the construction unit.

After receiving the warranty notice, the construction unit shall go to the site to check the situation and guarantee it within the time specified in the warranty. In case of emergency repair accident involving structural safety or seriously affecting the use function, the construction unit shall immediately arrive at the scene for emergency repair after receiving the warranty notice.

Extended data:

"Measures for quality warranty of housing construction projects" Article 7 Under normal use, the minimum warranty period of housing construction projects is:

1, foundation engineering and main structure engineering, which are 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 pipes, water supply and drainage pipes, 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.

Beijing Municipal Government-Measures for Quality Assurance of Housing Construction Projects