How Much Does 浴室漏水維修 Cost in Hong Kong?
Hong Kong market reference price
Bathroom leak repair in Hong Kong costs HK$8,000–$30,000, depending on severity, repair method (tile-on waterproofing or full excavation), and the affected area. Minor grout seepage can be treated with injection; severe leaks may require full tile removal and re-waterproofing.
Bathroom Leak Repair Cost Reference
(Prices may be higher for premium-tier cases)
* Prices are market reference ranges. Actual costs may vary.
If there's no visible mould or structural damage, a tile-on injection approach can save cost and time. For recurring leaks (two or more episodes), full excavation and re-waterproofing is more cost-effective long-term and avoids neighbour liability disputes.
Frequently Asked Questions
Common causes include aging waterproof membranes, failed tile grout, broken drain seals, and degraded silicone sealant around bathtubs — especially in units over 15 years old.
If the leak originates within your unit (e.g. failed waterproof layer), you are responsible for repair costs. If it comes from the unit above, the upstairs owner bears the cost. A professional leak test is recommended to confirm the source before any dispute.
Professionally applied tile-on waterproofing (polyurethane injection or water-based membrane) typically lasts 8–12 years depending on material quality and usage frequency. Full tile excavation with re-waterproofing generally lasts 15–20+ years.
Minor injection or coating works generally don't require formal notification. For full tile excavation, inform building management and neighboring units in advance to avoid complaints. Some estates require a renovation permit application.
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