There are numerous causes for ceiling leakage. In most cases, it is leakage of the drainage pipe of a flat that causes ceiling leakage to the flat directly below.
The occupant of the affected flat should engage a licensed plumber to carry out a thorough examination. If necessary, the occupant of the upper flat should be asked to provide access for conducting tests.
If drainage seepage is suspected to be the cause for ceiling leakage, the occupant of the affected flat may seek assistance from the Food and Environmental Hygiene Department (Hotline no. 2868 0000).
If water mains seepage is suspected to be the cause for ceiling leakage, the occupant of the affected flat may seek assistance from the Water Supplies Department (Hotline no.2824 5000).