A sewer drain clog is a very serious problem that can be considered a plumbing emergency and a potential health concern. Since the wastewater has no place to go, it will all come back up into the household plumbing system in one way or another. When you have a sewer drain clog, you should not use any of the plumbing in the home until the stoppage is cleared. Ermak – Plumbing & Heating LTD. offers professional drain cleaning services, as well as drain inspection and diagnostics for residential and commercial properties of all sizes.