PU Injection Grouting
LeakProof offers trusted leak-proofing solutions to protect your property from water damage with expert service and reliability.
PU Injection Grouting –
Advanced Waterproofing for Leak Prevention
Effective Solution for Stubborn Leakages in Hard-to-Reach Areas
PU (Polyurethane) Injection Grouting is a highly effective and advanced waterproofing technique used to stop water leakages, especially in areas where traditional surface treatments are not feasible. This method is ideal for structural cracks, basement leaks, water tank seepage, and sub-surface waterproofing.
If the source of leakage is inaccessible or difficult to trace, negative-side injection grouting becomes the most reliable solution. PU injection works by foaming and expanding, sealing cracks from the inside and preventing further seepage.




Why Choose PU Injection Grouting?
- Expands on Foaming – Fills cracks completely, even in complex passageways.
- Stops Profuse Leakages – Prevents water penetration through walls, ceilings, and floors/
- Ideal for Hard-to-Reach Areas – Works where surface treatments are not possible.
- Long-Lasting & Effective – A permanent solution for prolonged water leakage issues.
The PU Injection
Grouting Process
1. Identifying the Leakage Area
A thorough inspection is conducted to detect the cracks and leakage points in the structure.
2. Drilling & Preparing Injection Points
Small holes are drilled at calculated intervals to inject the PU grout. Injection ports are fixed to ensure deep penetration into the cracks.
3. PU Grout Injection & Expansion
High-quality polyurethane resin is injected under controlled pressure. The resin expands upon contact with water, forming a waterproof seal. The foam completely fills the cracks and voids, blocking future water ingress.
4. Sealing & Finishing
Once the injection is complete, the ports are removed, and the surface is sealed.Final inspection ensures the structure is leak-proof and reinforced.
Identify
Leakage
Drilling
Surface
Preparation
Grout
Injection
Sealing
Finishing
Identify Leakage
Drilling
Surface Preparation
Grout Injection
Sealing
Finishing
Why Choose Our PU Injection Grouting Services in Mumbai & Thane?
- Expert Waterproofing Contractors with experience in handling PU injection grouting.
- Use of high-quality Polyurethane resin which is a synthetic polymer waterproofing material
- Specialized application techniques, including proper overlap and timing for best results.
- Customized Solutions for all types – residential, commercial, or industrial.
Contact Us
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