Terre Hill Composites provides innovative, cost effective solutions to stop structural deterioration, and groundwater infiltration while adding generations to the life of your infrastructure — old or new. 

Underground structures with advancing deterioration compromise the life and capability of an entire system. The Multiplexx PVCP™ Liner can rehabilitate older structures, and protect new, arresting any further decay — economically and efficiently. 

Terre Hill Composites leads the industry with a 10-year non-prorated warranty. Owners are guaranteed performance while protecting their asset values which can remain fixed at least at the cost of the rehab or amortized over the entire period or longer.