You're remodeling the bathroom and trying to take out the fixtures, but the pedestal sink has you scratching your head. Just how do you remove that pedestal? Designed for style as well as saving space, the pedestal on the sink not only hides the majority of the plumbing but acts as extra support for the heavy sink itself.
Turn off the hot and cold water supply at the shutoff valves. These may be located behind an access panel in the room behind the sink wall or near the floor below the sink. Open the faucet to drain the lines of water.
Disconnect the hot and cold water lines where they meet the faucet lines, using an adjustable wrench.
Remove the drain pipe where it meets the bottom of the sink and the drain near the floor. Use a pipe wrench, being careful not to tip it as it will hold some water in the "S" section. Place the drain pipe in a bucket.
Unbolt the sink where it is attached to the wall. Look under the sink; where it meets the wall in back of the basin there will be 2 to 3 bolts which anchor the sink to the support beam in the wall. Remove the bolts, being careful not to jar the sink as once the bolts are removed its only support will be the pedestal.
Lift the sink straight up from the pedestal. Note that the sink will be heavy and you may need help with this step. Set the sink aside where it will not be damaged.
Locate the bolts that secure the pedestal to the floor. These will be in the opening in the back of the pedestal in the area that faces the wall. There will be 2 to 3 bolts; be careful not to tip the pedestal over as you remove the bolts.
Raise the pedestal carefully up and away from the plumbing and place it in an area where it will not be damaged.