Sewer & Storm Mains

Sanitary and storm mains take on groundwater at joints, laterals, and cracks long before a pipe fails outright. We find every active defect with CCTV, then seal each one from the inside — under pressure, without digging up the road or shutting the line down.

Method is matched to the defect: hydrophobic polyurethane for active flow, hydrophilic PU or acrylate where a flexible long-term seal is needed. We use DE NEEF® CUT, SLV, and CFL resins depending on conditions.

• CCTV survey and defect-by-defect ranking
• Joint, lateral, and crack injection under pressure
• Live verification pass before demobilizing
• Completion report with before/after footage