PU injection grouting (Polyurethane injection) is one of the most common non-hacking waterproofing methods used in Singapore to fix ceiling leaks, wall seepage, and concrete cracks.

This technique uses liquid polyurethane resin, which is injected into cracks or gaps,

• Expands into foam
• Fills voids and cracks
• Seals water pathways permanently

This technique is one of the most popular method for homeowners looking for a quick fix.