average margin on drain cleaners
Clogged Drain Costs. 1  Hiring a plumber to come out and fix a clogged drain will set you back at least $50 and up to $250. It depends on the severity of the drain clog. 2  According to a national average, it costs an average of about $90 for a plumber to clear a blocked tub drain and $60 for a blocked drain in a sink.