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The wall-to-floor junction
A sharp 90-degree corner cracks as the building settles. We cut a cove fillet to round it and embed reinforcing mesh across it before any membrane goes on. This one detail prevents most leaks.
7–10 daysTypical job
The most common source of a leak into the flat below — and the hardest thing to fix once tiles are over it.
Bathroom waterproofing in Bengaluru costs ₹90 to ₹180 per square foot of treated area, covering the floor and walls up to 1.2 metres (full height in shower zones). A standard bathroom runs ₹18,000–₹40,000. It is always cheaper than repairing the ceiling below.
Almost never through the middle of the floor. Always at a junction.
A sharp 90-degree corner cracks as the building settles. We cut a cove fillet to round it and embed reinforcing mesh across it before any membrane goes on. This one detail prevents most leaks.
Wherever something penetrates the slab, water finds the gap around it. Each penetration gets sealed and meshed individually — this is slow work and it is where cheap jobs cut time.
Splash reaches far higher than people expect. In the shower zone we go floor to ceiling, not to the 1.2m line used on the other walls.
We flood the bathroom and hold it for 48 hours. If the level drops or the ceiling below shows anything, we redo it then — while it is still accessible.
Every failure we get called to fix started with one of these being skipped.
Water gets in at the 90-degree wall-to-floor corner. Rounding it into a fillet before the membrane goes on is the step most often skipped.
Corners, pipe penetrations and drain outlets get fibreglass mesh embedded in the first coat. These are where every failure we are called to fix started.
Second coat at 90 degrees to the first, so a thin patch in one is covered by the other. Single-coat application is not waterproofing.
We flood it and watch it. Testing after the tiles are down means breaking a finished floor to find the leak.
Four stages, and the last one is the only proof that matters.
Water travels. We trace where it is entering, not just where it is showing, because treating the stain instead of the source is why most waterproofing fails twice.
Remove existing finishes back to the substrate, cut out loose material, and round every wall-to-floor junction into a cove fillet.
Two coats of the specified system, cross-applied, with reinforcing mesh at all junctions, corners and pipe penetrations.
The area is flooded and held for 48 hours before anything is tiled over it. If it does not hold, we redo it — before it is buried under a floor.
Per square foot of treated area, membrane and testing included.
Two-coat acrylic membrane, cove fillets, mesh at junctions, ponding test.
Cementitious crystalline system with full mesh reinforcement and shower-zone full height.
PU or polymer-modified system with full slab treatment and written warranty.
| What you get | Essential | Premium | Luxe |
|---|---|---|---|
| Starting price | ₹90/sq ft | ₹130/sq ft | ₹180/sq ft |
| Cove fillet at junctions | Yes | — | — |
| Two cross-applied coats | Yes | — | — |
| Mesh at corners | Yes | — | — |
| 48-hour ponding test | Yes | — | — |
| Crystalline cementitious system | — | Yes | — |
| Full mesh reinforcement | — | Yes | — |
| Shower zone full height | — | Yes | — |
| Drain collar detail | — | Yes | — |
| PU or polymer-modified | — | — | Yes |
| Full slab treatment | — | — | Yes |
| All penetrations detailed | — | — | Yes |
| Written warranty | — | — | Yes |
Quoted with tiling as a package, because we do not waterproof a floor and hand it to someone else to tile.
A standard Bengaluru bathroom costs ₹18,000–₹40,000, or ₹90–₹180 per square foot of treated area. Repairing the ceiling of the flat below after a leak typically costs several times that, plus the relationship with your neighbour.
1.2 metres on general walls, full height in the shower zone. Splash travels much further than people expect, and a leak at 1.5 metres in a shower wall is a common failure in jobs that stopped at the standard line.
We plug the drain, flood the bathroom floor with water and leave it for 48 hours, checking the level and the ceiling below. It is the only real proof the membrane works, and it has to happen before tiling — after that the floor has to be broken to fix anything.
There are surface-applied products that claim this, and they buy time at best. Genuine waterproofing sits under the tiles. If your bathroom is leaking into the flat below, the floor has to come up.
7–10 days including curing and the ponding test, before tiling starts. We sequence bathrooms one at a time so you always have a working one in the house.
We work across Bengaluru, and we quote after seeing the site — not over the phone.
Send a photo. That tells us whether this is a bathroom problem or a plumbing one.
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