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Housing settlement belongs to the impact of structural safety, belongs to the scope of the lifetime warranty, and 5 years do not match, you can check the housing warranty certificate provided by the developer when the house is delivered, the above contact information, warranty scope should be written clearly.
You can find the landlord first and ask the landlord to fix it, if the landlord doesn't repair it, you can negotiate with the people you share and pay for the repairs together.
If there are no other factors, it will fall naturally. It should be the responsibility of the installer. If there are other factors, find the person responsible for the drop.
If the toilet is blocked, you can take the next dredging method... >>>More
It is good to design with a floor plan, including where the doors are and where the windows are.
This is also a housing problem, you can find the property to use the maintenance fund to repair, to grout.