There are several causes for stoppages:
Main sewer stoppages are from the house to the street and are usually caused by tree roots that have grown into leaky joints below ground or flushing paper towels/wipes, sanitary napkins, or items that shouldn’t be flushed down your toilet. Most of the time we can easily snake these out of your pipes with our sewer machines; sometimes, replacement of lines is needed.
Sinks, tubs, or local stoppages are typically caused by a build-up of hair, grease, or food particles, and also by improperly installed pipes