First, write to the property.

if it is an individual, directly write the owner's reaction to the housing quality problems in Unit X, Building XX, and write it to the property service company or developer in the form of a letter (within the warranty period).

please ask XX property company to solve it within XX days.

owner: signature

year month day

2. It's written to the quality supervision department, so it's usually written on behalf of more than one person.

housing quality complaint

Dear leaders:

We are the owners of xxx. We bought the pre-sale house of this property in X, but we found the following serious problems when we took over the house:

I hope leaders at all levels and inspection departments will pay attention to this problem and solve our worries before moving in.

the owners wait for the inspection by the quality supervision department and the handling results of relevant leaders until the problem is solved.