What should I do if there is flooding or blocked drain?

If there is flooding or blocked drain, you may report the case to the 24-hour hotline 2300 1110 of the Drainage Services Department.  

You may also contact 1823 through the following channels to report the case:

• Online Form
• 1823 Mobile App
• Email to tellme@1823.gov.hk
• Call 1823 or fax to 2760 1823

Please provide the following information to facilitate the case handling by the concerned department:

1. Case location (For example: Street Name, Door number, Front door/rear lane, nearby lamp post number etc.)
2. Case nature (Flooding or blocked drain) 
   • For flooding cases, please describe the approximate flooding level and the size of the flooding area
   • For case of blocked drain, please indicate if there is any sewage overflown
3. Name and contact number of the complainant
4. Best calling time for the department to provide a reply