This drain leak was located in the living room/dining room underneath the wood floor. Once we opened up the concrete we found the cast iron drain line to be completely corroded and deteriorated. This job was 4 days and we went from the dining room into the kitchen and hallway area.
This particular drain had 2 major root intrusions out in the front yard. To repair this we excavated the front yard landscape/dirt, cut the drain line and replaced the section of pipe with ABS. Afterwards, we put back the landscape and job complete!