Why bathrooms leak into the flat below
In most Hyderabad apartments the bathroom floor sits in a sunken slab, a recessed area filled with brickbats or rubble that hides the drain pipes. When the waterproofing under the tiles fails, or a pipe joint or floor trap leaks, water collects in that filling and slowly seeps into the ceiling of the flat below or the wall of the next room.
The usual quick fix of re-grouting the tiles rarely lasts, because the water is already below them. Our bathroom waterproofing in Hyderabad first identifies whether the problem is tile joints, a pipe, the floor trap or the slab itself. Where the leak is limited to the joints, we can often fix it without breaking tiles using epoxy grouting. Where the slab is saturated, we open it up and waterproof it properly.
Signs of bathroom leakage
- Damp ceiling in the flat belowThe most common complaint, usually directly under the shower or floor trap.
- Wet skirting on the adjoining wallPaint peeling or salt deposits on the wall shared with a bedroom or hall.
- Blackened or missing groutTile joints that stay dark, crumble or wash out let water straight under the tiles.
- Hollow-sounding tilesTiles that sound hollow when tapped often have water trapped beneath them.
- Water around the floor trap or WCLeaks at the Nahani trap, WC outlet or pipe sleeves where they pass through the slab.
- Persistent bad smellStagnant water in the sunken slab filling can cause a lingering odour.
Our bathroom waterproofing process
Leak diagnosis
We check tile joints, pipe sleeves, the floor trap, WC outlet and wall junctions, and run water tests to isolate the source.
Choose the right repair
Joint-only leaks can be fixed by epoxy grouting without breaking tiles. A saturated sunken slab needs to be opened and treated.
Sunken slab & pipe treatment
Pipe sleeves and outlets are sealed, and the slab and walls get a cementitious or polymer waterproof coating with reinforced corners.
Pond test
The waterproofed area is flooded and left standing to confirm there is no seepage before any tiling.
Tiling & epoxy grout finish
Tiles are relaid where needed and finished with epoxy grout, which does not absorb water or stain.
Bathroom waterproofing methods
Epoxy grouting (no tile breaking)
Old cement grout is raked out and replaced with waterproof epoxy grout. Suitable when the tiles and slab are still sound.
Cementitious / polymer coating
Two-component flexible coating applied on the sunken slab and up the walls before tiling.
Pipe sleeve & floor trap sealing
Joints where pipes pass through the slab are sealed with non-shrink grout and sealant, the most common leak point.
Pre-tile treatment for new bathrooms
Building or renovating? We waterproof the slab before the tiles go down, which is the cheapest time to get it right.
Our bathroom waterproofing work in Hyderabad
Why choose Ganga Waterproofing
- We find the cause, not the symptom. Every job starts with a free inspection to trace the water to where it actually gets in.
- Branded materials, named on your quote. You see exactly which product will be used and how much of it.
- Our own trained crew. The same team starts and finishes your job, and cleans up each evening.
- Written warranty and post-monsoon follow-up. We check back after the first heavy rain.
Read what customers say in our Google reviews, or see recent projects.
Bathroom waterproofing across Hyderabad & Secunderabad
We provide bathroom waterproofing in all parts of Hyderabad and Secunderabad, including:
Bathroom Waterproofing: frequently asked questions
Often, yes. If the water is entering through the tile joints and the slab below is not saturated, we can remove the old grout and refill it with epoxy grout. If a pipe or the sunken slab itself has failed, some tiles have to be removed to repair it properly. We tell you which applies after the inspection.
Epoxy grouting without breaking tiles is the most affordable option. Full sunken slab waterproofing with re-tiling costs more because of the civil work. You get a fixed, itemised quote after the free inspection.
Epoxy grouting is usually completed in a day. Full sunken slab treatment, including the pond test and re-tiling, typically takes 3 to 5 days.
Yes. We can inspect both sides, identify the source and give a report both owners can refer to, then carry out the repair in the upper flat.