The CGI Waterproofing System is an interior-side solution that stops groundwater intrusion in foundations, cellars, garages, tunnels, elevator pits, mechanical rooms, and vaulted structures — all without costly exterior excavation.

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Using our specialized concrete gel injection method, we drill from the inside and inject a two-part hydrophilic resin that penetrates the tiniest cracks and cold joints. The resin components react deep inside the substrate, forming a flexible, long-lasting gel barrier that seals leaks for good.