Most seepage complaints in apartments start in the bathroom's sunken slab. We seal it properly — coving, reinforced coatings and a ponding test — before tiling, so the flat below stays dry forever.
The sunken slab is sealed before tiles ever go down.
Flooded and verified for 48–72 hours before handover to tiling.
No more damp patches on the ceiling below.
System warranty on the treatment.
| System | 2-coat acrylic-cementitious / polymer-modified coating with corner sealing tape |
|---|---|
| Process | Surface prep → coving at corners → 2 coats with cloth reinforcement → ponding test → protective screed |
| Drain Details | Drain mouths and pipe penetrations sealed with PU sealant |
| Warranty | 5–7 years system warranty |
New bathroom construction, bathroom renovations and flats with seepage complaints from the floor below.
Most leaks start in the sunken slab below the bathroom floor, where concealed plumbing sits. If it wasn't waterproofed before tiling, water slowly saturates the filling and appears on the ceiling below. Proper sunken-area treatment before tiling stops it permanently.
Minor joint leaks can sometimes be sealed with epoxy grouting and chemical injection, but if the sunken slab membrane has failed, re-tiling with fresh waterproofing is the only permanent fix. We assess this honestly in a free inspection.
Sunken waterproofing typically costs ₹50–90 per sq.ft for the membrane system plus screed, depending on condition. It is a small cost compared to repairing the neighbour's ceiling later.
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