Confirmed
Multiple evidence points support the cause.
Problem · apartment wet area
Sunken slab leakage in Hyderabad
A sunken slab is the dropped bathroom floor that holds the filling, the trap and the pipes. When it leaks, the ceiling below pays. Filling that was never waterproofed, or a trap that was never detailed, is a Hyderabad apartment classic.
What you are seeing
Symptoms and likely causes
Typical signs
- Downstairs ceiling wet after every shower, not only after rain
- Musty smell in the sunken-slab zone even when tiles look dry
- A previous “grout work” that did not change the downstairs stain
- Society blaming the upstairs flat, upstairs blaming the builder
Causes we actually check
- Filling in the sunken slab that was never isolated with a membrane
- Nahani / floor trap not detailed to the waterproofing
- Pipe sleeves through the dropped slab
- Failed floor-wall upstand at the bathroom threshold
How Gracia diagnoses
Evidence before treatment
This is diagnosis-heavy. Thermal on the ceiling below, trap and threshold inspection, then a labelled cause. Opening the filling is quoted only when the evidence says the membrane under it has failed. Plumbing reroute is out of scope unless written.
LB Nagar, Madhapur and Kukatpally towers: one bathroom, one downstairs living room. We inspect the wet area in use. Society jobs need access to both flats — we write that into the booking.
Probable
Evidence indicates the cause; further verification may still be required.
Possible
One or more clues exist, but the evidence is not enough for a firm conclusion.
Excluded
Inspected, and no supporting evidence found in the inspected area.
What the Leak Diagnostic Report contains → · Thermal diagnosis cluster
Local case
Bathroom leakage into the floor below — LB Nagar
Problem. Water marks on the living-room ceiling under a first-floor bathroom after every shower.
Evidence. Moisture concentrated at the bathroom floor-wall junction, not at the tap line.
Probable. Failed wet-area membrane at the floor-wall joint. Concealed pipe leak not supported by the scan; excluded pending any opening.
Treatment. Injection grouting at the joint, two-coat wet-area system. Plumbing left in place — not in scope.
Testing. Shower test after curing; ceiling below checked the next day.
Full case study →Questions
About this problem
No. Some are trap and joint details. Some are the filling and membrane. The report says which. A full tile strip is not the default.
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Need this diagnosed, not guessed?
Book a free inspection. Written report before treatment. Warranty on the quotation.