1 The total cost for a toilet with professional installation is typically $150-$600 depending on location and type of toilet, but it can be $700-$7,000 or more for specialty toilets and/or if additional parts and repairs are needed. Within these price ranges, two-piece toilets (bowl and tank are separate) typically cost less than one-piece models. 2  CostHelper readers report paying $100-$325 for a basic toilet (without installation), at an average price of $176.