Pipe Repair in Medford. The sewer connections in Medford were in need of pipe repair. Most of the connections were damaged due to tree roots and in return were allowing wastewater to seep into the earth. The InnerSeal Innerwrap Lateral Connection System will repair all of the Medford sewer pipe connections with a structural and watertight seal that exceeds ASTM standards. Medford residents, don’t let wastewater leak into the earth! Call Perma-Liner for trenchless pipe repair solutions!