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Frequently Asked Questions

Get answers to common waterproofing questions

The best method depends on whether you can access the exterior side. Positive side (external) waterproofing is most effective, using bituminous membranes or crystalline systems. If external access isn't possible, negative side (internal) waterproofing using crystalline coatings or cavity drainage systems is recommended. For active leaks, PU injection provides immediate relief. A site inspection is necessary for proper recommendation.

Chemical/membrane systems: 10-15 years with proper maintenance
Brickbat waterproofing: 15-20 years
Polyurethane membrane: 20-25 years

Actual lifespan depends on: quality of application, proper surface preparation, adequate curing, protective layer presence, maintenance, and climatic conditions. Regular inspection and minor repairs extend life significantly.

Injection grouting is used for:
  • Active leaking cracks - PU injection stops water immediately
  • Structural crack repair - Epoxy injection restores strength
  • Basement seepage - Curtain grouting behind walls
  • Lift pit leakage - Quick solution without excavation
  • Construction joints - Sealing gaps between old and new concrete
It's a non-invasive method that works from inside without disturbing external areas.

Curing allows waterproofing materials to achieve their designed properties:
  • Chemical reaction completion - Polymers need time to cross-link and form proper bonds
  • Strength development - Premature loading can damage the membrane
  • Adhesion optimization - Proper bonding to substrate requires adequate time
  • Moisture evaporation - Water-based systems need drying time between coats
Rushing curing is a major cause of waterproofing failure. We never compromise on this, even if it delays project completion.

Yes, we provide warranties based on the system used. Our warranty covers:
  • Water seepage through waterproofed area
  • Material defects
  • Workmanship issues
What's NOT covered:
  • Damage from structural movement/settlement
  • Damage from renovations or drilling into waterproofed surface
  • Lack of maintenance (blocked drains, etc.)
  • Natural disasters
We provide realistic warranties with clear terms - no false promises of "lifetime warranty."

It depends on the method:
  • Chemical/membrane waterproofing: Not recommended. Requires dry weather for proper application and curing.
  • PU injection grouting: YES - Can be done during active leakage. PU resin reacts with water.
  • Crystalline waterproofing: Possible on damp surfaces but not during continuous rain.
Best practice: Plan waterproofing before monsoon (February-May). Emergency repairs during monsoon are possible with injection methods.

Common causes:
  • No waterproofing under tiles - Most common issue in older constructions
  • Damaged waterproofing - Broken during tile installation
  • Grouting failure - Water penetrates through tile joints
  • Plumbing leaks - Hidden pipe leakage behind walls
  • Inadequate waterproofing height - Walls not treated to sufficient height in shower areas
Solution requires removal of tiles, proper waterproofing application, water testing, and tile replacement. Surface coatings over existing tiles are temporary fixes.

Costs vary by method, area size, and complexity:
  • Chemical waterproofing: ₹50-150 per sq.ft
  • Brickbat waterproofing: ₹100-180 per sq.ft (including slope correction)
  • Injection grouting: ₹200-500 per linear foot (depends on crack depth)
  • Bathroom waterproofing: ₹15,000-40,000 (includes tile removal & reinstallation)
  • Basement waterproofing: ₹80-200 per sq.ft (method dependent)
These are indicative rates. Exact cost determined after site inspection. Beware of extremely low quotes - they usually mean compromised quality.

Simple projects: You can DIY basic waterproofing for small areas like planters or minor repairs if you follow instructions carefully.

Complex projects: Professional help recommended for:
  • Basement waterproofing (hydrostatic pressure requires expertise)
  • Terraces (slope correction, drainage integration needed)
  • Bathrooms (proper detailing critical)
  • Crack repair (diagnosis requires experience)
Common DIY mistakes:
  • Wrong method selection
  • Poor surface preparation
  • Inadequate coating thickness
  • Insufficient curing time
  • Missing critical details (corners, joints)
Cost of fixing failed DIY attempts often exceeds professional waterproofing cost.

Regular maintenance extends waterproofing life:
  • Keep drains clean: Remove debris regularly to prevent water stagnation
  • Inspect after heavy rains: Check for any ponding or drainage issues
  • Avoid drilling/nailing: Don't penetrate waterproofed surface
  • Check expansion joints: Re-seal if sealant is cracked/missing
  • Annual inspection: Look for coating damage, cracks, or exposed areas
  • Protective layer maintenance: Repair broken tiles, damaged plaster promptly
Minor repairs done early prevent major problems later.

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