Your bathroom is leaking into the flat below. The ceiling in your neighbour's flat has a brown stain. Every time someone showers it gets worse. And you're dreading the words "we'll have to break all the tiles" — which means weeks of dust, disruption, and a ₹50,000+ renovation bill.
Here's what most people in Bangalore don't know: 80% of bathroom leaks can be fixed without breaking a single tile. The method is called injection grouting, and it has been the standard in commercial construction for years.
How injection grouting works — no demolition required
Instead of ripping out the tiles to re-waterproof from below, injection grouting works from above through micro-holes drilled through the grout lines. Polyurethane or epoxy grout is injected under pressure directly into the substrate — the layer between the tile and the structural slab. It expands, fills every void and crack, and sets permanently. The micro-holes are then sealed with tile-coloured grout. The bathroom looks untouched. The leak is stopped.
- Leak mapping — identify all affected areas using moisture meter
- Micro-hole drilling through grout lines (3-5mm diameter)
- Injection of PU or epoxy grout under pressure
- Sealing of all joints with flexible waterproof sealant
- Micro-holes patched with matching grout
- 5-year warranty on completed work
Bathroom waterproofing cost in Bangalore (2026)
| Bathroom Size | Injection Grouting | Full Demolition + Redo |
|---|---|---|
| Small (25-35 sq ft) | ₹8,000–₹12,000 | ₹40,000–₹60,000 |
| Standard (35-60 sq ft) | ₹12,000–₹18,000 | ₹60,000–₹80,000 |
| Large (60+ sq ft) | ₹18,000–₹25,000 | ₹80,000–₹1,20,000 |
The saving is 60-70%. The result is equivalent — or better, because injection grouting treats the substrate, not just the surface.
When demolition is actually needed
About 20% of cases do require tile removal — when the tiles are already hollow and loose across most of the floor, when structural damage exists in the slab itself, or when the previous waterproofing layer was applied incorrectly over incorrect substrate. The free inspection determines which approach applies to your bathroom. We never recommend demolition when grouting can work.
LoklFix provides free inspection for bathroom leaks across all of Bangalore. We tell you honestly whether injection grouting works for your case — and if it does, we fix it in one day with a 5-year warranty. Call +91-8123083393.
Bathroom waterproofing service areas in Bangalore
We cover all Bangalore zones — Whitefield, Koramangala, Indiranagar, HSR Layout, Marathahalli, Electronic City, and 36 more areas. Same-day inspection available.
FAQs — Bathroom Waterproofing Bangalore
Yes — injection grouting fixes 80% of bathroom leaks without tile removal. Micro-holes are drilled through grout lines, PU grout is injected under pressure, holes are sealed. Done in one day. Cost ₹8,000–₹25,000 vs ₹50,000–₹1,20,000 for demolition.
Injection grouting (no tile breaking): ₹8,000–₹25,000 depending on bathroom size. Full demolition and re-waterproofing: ₹40,000–₹1,20,000. Free inspection determines which method is needed for your case.
LoklFix provides a 5-year written warranty on all bathroom waterproofing in Bangalore. Injection grouting with Sika or Fosroc material typically lasts 7-10 years under normal use.