The prices depend on the severity of the clog and which drainage is clogged. Unclogging a toilet drainage should cost somewhere between $109 to $273.

Several different systems make up a house's water systems. Fresh water is delivered to a home through water supply pipes from the utility or a well and is then distributed to sinks, toilets, washers, bathtubs, and related fixtures. The drain-waste-vent system carries away used water and wastes to sewers or septic tanks.

Fixture shutoff valves are located next to or underneath the toilet and sink and can shut off the water supply to these particular fixtures if required. You may need to do so if a sink or toilet is leaking or flooding.