Drain Doctor at 8 Montgomery Circle, New Rochelle, New York.

Went down into the basement and found it flooded with what I only wished was water. Drain Doctor came over very quickly that same morning and cleared the stoppage, correctly identified the source of this reoccurring problem and outlined a plan for a permanent fix - an option that hadn't even been suggested by a competitor. They even cleaned up the very smelly mess the main sewer line had expelled before they had arrived - again, unlike a certain competitor. Would definitely recommend.