I called after my plumber could not clear it with a regular snake. Called at 11 AM and they gave a window of 1-2 PM. They confirmed when on their way (was just a bit late). Mike was professional and used their larger/longer snake with camera. Blockage was cleared and drain pipe to sewer was inspected for cracks/roots. He explained the process throughout as I watched the video monitor. He advised on what to do should it happened again given the age of the home.