Zwald Tansport, Inc. and Trenchless Pipe Repairs,LLC(TPR) have teamed up to carry on Sondi Greene’s legacy. Sondi and Nick Patrick, owner of TPR, were longtime
Portland and many large cities are rehabilitating mainlines with the, Perma-Liner™ Manhole Rehabilitation lining system. This CIPP system is saving cities time and money with
Portland, does your inversion system allow you to install 1000LF of 24” cured-in-place-pipe day after day? Perma-Main™ Continuous Lining Top Gun allows for manhole-to-manhole lining
Portland, over time soil loosens which can cause loose and offset joint in sewer pipes. Once this happens the damage begins like a domino effect.