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Permanent Fix

Bathroom Waterproofing

Bathroom waterproofing that deals with seepage and dampness under the tiles once and for all. We tank the sunken portion, seal every plumbing junction, and flood-test the whole floor before any tiling goes back down.

Bathroom Waterproofing carried out in Thane & Mumbai — Mahadev Waterproofing

The method

How we actually do it

Waterproofing almost always fails at the small details rather than the big ones, so we follow the same sequence on every job. Here it is, and you’re welcome to hold us to it.

  1. Sunken slab cleaned and cement-slurry primed

  2. Polymer-modified cementitious tanking to 300 mm up the wall

  3. Pipe collars and corners reinforced with fibre mesh

  4. 24-hour flood test, then backfill and re-tile

Named on your quotation

  • Dr. Fixit
  • BASF
  • Pidilite
  • Asian Paints
  • STP
  • Nerolac
  • Sika
  • Fosroc

Next step

Get a quote for bathroom waterproofing

You get a free site inspection, a written diagnosis and an itemised price, usually within a day of ringing us.

Warranty
10 years, in writing
Site visit
Free, usually same day
Areas covered
Thane, Mulund, Ghatkopar, Andheri & Mumbai
Experience
Since 2008, 500+ projects

Ask about bathroom waterproofing

We’ll call you back within a couple of hours, as long as it’s during working hours.

Your details go straight to our team on WhatsApp, and we won’t share them with anyone or send you anything you didn’t ask for. If you’d rather just talk, call +91 99875 06070.

Questions

Bathroom Waterproofing: the questions we get asked

These are the ones that come up on the phone most weeks. If yours isn’t here, ring us and ask it — we’d rather answer it before you book than after.

Do the tiles have to come up?

For a proper job in a sunken bathroom, yes — the tanking has to sit under the tiling, not on top of it. We lift the floor tiles and about 300 mm of the wall course, tank the sunken portion, flood-test it and then re-tile.

How long is the bathroom out of use?

Usually four to five days, including the 24-hour flood test. If you have only one bathroom we phase the work so you are not left without it overnight.

The seepage is showing in the flat below mine. Whose problem is it?

Almost always the bathroom above, and almost always the plumbing junctions rather than the slab itself. We scan both flats before quoting, so there is a written diagnosis rather than an argument between neighbours.

Will this stop the smell as well as the damp?

If the smell is coming from water sitting in the sunken filling, then yes — draining and re-tanking the sunken portion is what removes it. If it turns out to be a drainage trap we will tell you that, rather than sell you waterproofing you do not need.

Who we do this for

Clients this work is carried out for

Photographed by us on their sites. Scope and figures for any individual contract stay between us and them.

Where we carry out Bathroom Waterproofing

Bathroom Waterproofing — most asked for in

We also work across Powai, Borivali, Bhandup, Kalyan, Dombivli and Navi Mumbai. Ask whether we cover your building →

Same-day response

Leaking right now? Call us before it spreads.

Leave a leak through one monsoon and it’ll cost you several times more to put right than it would this week. The inspection is free either way.