Epoxy Relined Pipes Philadelphia. A Philadelphia contractor saw a video online about epoxy relined pipes and had some questions for a Perma-Liner technician. After answering his questions regarding the use and benefits of epoxy relined pipes, specifically in the Philadelphia area, the contractor decided to schedule a live demonstration on epoxy relined pipes with Perma-Liner. The combination of winter weather and an, old historic City create a perfect atmosphere for why digging and replacing should not be an option! Reline your pipes with epoxy! If you live in Philadelphia, call us!