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Bathroom Waterproofing Contractor in Mumbai

New construction bathrooms, toilets, shower areas and wet rooms.

Waterproofing new bathrooms and wet areas

Mabani Infra is a bathroom waterproofing contractor in Mumbai for residential towers, hotels, hospitals and commercial buildings. Water in a bathroom travels through the weakest detail: the floor-to-wall junction, a pipe, a trap or a door threshold. The waterproofing is applied to the structure before tiling, then protected so it is not damaged by the tiling work.

Scope

  • Bathroom and toilet waterproofing.
  • Shower areas and wet rooms.
  • Waterproofing beneath tiles.
  • Floor-to-wall junctions.
  • Pipe penetrations and floor traps.
  • Waterproofing upstands and thresholds.
  • Protection of the waterproofing layer before tiling.

Sequence of work

  1. Prepare the substrate and set the slopes toward the traps.
  2. Treat junctions, penetrations and traps.
  3. Apply the waterproofing system.
  4. Test where the specification requires it and site conditions allow.
  5. Protect the waterproofing layer.
  6. Install the tile bedding and tiles.
Wet area waterproofing, luxury housing project, Mumbai
Wet area waterproofing, luxury housing project, Mumbai

Specification note. Flood testing is carried out where the specification requires it and site conditions allow. The duration and method follow the approved specification.

Key details

Waterproofing membraneUpstand on wall(height as specified)Cove at junctionTile and adhesiveProtection / beddingWallSlab
Floor-to-wall junction. The membrane runs across the floor and turns up the wall at a cove. Illustrative sketch, not to scale. Not a design drawing.
Waterproofing membraneMembrane turned up the pipeSealant or collar at the pipeGrout around the pipeConcrete slabPipe
Pipe penetration. The membrane is turned up the pipe and sealed at the penetration. Illustrative sketch, not to scale. Not a design drawing.
Waterproofing membraneLaps onto trap flangeFloor trap and gratingScreed falls to trapConcrete slab
Floor trap. The membrane laps onto the trap flange and the screed falls toward the trap. Illustrative sketch, not to scale. Not a design drawing.
Shower area, falls to the trapUpstand at the open edge(threshold)Waterproofing under the tilesPlan view, not to scale
Shower area. The waterproofing continues across the shower area, with an upstand at the open edge. Illustrative sketch, not to scale. Not a design drawing.
Membrane along the wet-area floorMembrane up the upstand faceTile on the thresholdAdjoining floor slabTile and bedding
Waterproofing upstand. The membrane turns up the threshold so water cannot track out. Illustrative sketch, not to scale. Not a design drawing.

Related services

Bathroom waterproofing: frequently asked questions

Where do bathroom leaks usually start?

At the details: the floor-to-wall junction, pipe penetrations, floor traps, shower areas and door thresholds. These are treated before the main waterproofing layer is applied.

Is bathroom waterproofing tested before tiling?

Where the specification requires it and site conditions allow, the waterproofed floor is flood tested before tiling, and the result is recorded.

Do you waterproof bathrooms in existing flats?

Send us photographs and details of the leak. Treatment depends on the source; where the under-tile waterproofing has failed, the tiles in that area usually have to be removed. We confirm the approach on site.

Tell us about your project

Send the structure, location and scope. For a site visit, include a preferred date. Inquiries go straight to our operations team at operations@mabani.in.

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