Welcome to inquire
Return news listRepair Tips

Water leaking from the bathroom ceiling? The waterproofing layer upstairs may be damaged.

2025-09-28

Water stains, mold growth, or dripping on your bathroom ceiling are typical signs of a leak from the unit above. Here's an analysis of possible causes and solutions from our Xiao Yi Jiang technicians:\n\nCommon Causes of Leaks:\n1. Deteriorated waterproofing in the upper unit: Waterproofing layers may crack after 10 years.\n2. Poor sealing around the floor drain: The joint between the drain and slab is a common weak point.\n3. Hidden pipe leaks: Chronic seepage due to faulty PPR pipe fusion joints.\n4. Failed toilet flange gasket: Wastewater leaking along the outside of the pipe.\n\nResolution Process:\n1. Photograph the leak location and severity for documentation.\n2. Contact the upstairs owner to coordinate an inspection.\n3. Have a professional conduct a water retention test to identify the exact leak source.\n4. Negotiate repair responsibilities and costs based on liability.\n\nXiao Yi Jiang offers professional leak detection and waterproofing services using infrared thermal imaging to precisely locate leaks with minimal disruption to your decor. Whether you need repairs for your own home or assistance coordinating with neighbors, call 400-1060-908 for consultation.

Need home appliance repair services?

Professional technicians on-site quickly, transparent pricing, and repair warranty.