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+91-8755475716 WhatsApp Us Send EnquiryMost waterproofing calls we get in Delhi start with a stain on someone else's ceiling. In builder floors and apartment blocks, a leaking bathroom on one floor shows up as a damp patch, peeling paint or dripping water in the flat below. Neighbours get involved, plumbers get called, and the same patch comes back after every repaint. Solving it properly means finding exactly where the water is coming from, then using the right waterproof coating for that spot.
A damp patch can come from several places, and each needs a different fix:
| Likely source | How it shows up | Typical fix |
|---|---|---|
| Leaking pipe inside the wall or floor | Damp even in dry weather, often near fittings | Plumbing repair first |
| Failed bathroom waterproofing | Damp below showers and floor traps, worse after use | Remove tiles, apply membrane, retile |
| Gaps around floor traps and pipes | Rings of damp around a point | Seal and detail the penetration |
| Rain through external walls | Damp after rain on outer walls | Crack repair and exterior coating |
| Groundwater in basements | Damp at base of walls and slab | Crystalline or cementitious system |
We check with a moisture meter, look at the pattern and timing of the damp, and sometimes run a water test in the bathroom above. Coating the wrong surface is the most common waste of money in waterproofing.
Tiles and grout aren't waterproof. Water gets through grout lines and cracked tiles into the screed below. The fix is a waterproofing membrane under the tiles:
Overhead and underground tanks in Delhi homes and buildings often leak through cracks and joints. For drinking water tanks, we use waterproof coatings certified as safe for potable water, and the tank is flushed before refilling.
Basement damp usually comes from groundwater pressing against the outside of the walls. From inside, that's the "negative side", so coatings that simply sit on the surface can be pushed off. Crystalline waterproofing, which reacts inside the concrete to block capillaries, and specialised cementitious systems work better there. Active leaks through cracks are sealed first by injection.
Hairline cracks in plaster let rain in, which shows as damp inside after the monsoon. Cracks are opened and filled, then an elastomeric waterproof coating that stretches over small movements is applied. It keeps rain out while letting the wall breathe.
Clear sealers can reduce seepage through grout for a while, but a lasting fix normally needs a membrane under the tiles.
Usually several days, including the ponding test and retiling.
We use products certified for potable water in drinking water tanks.
Call +91-8755475716 or send photos of the damp area on WhatsApp. More details are on our waterproofing page.
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