This will involve removing a portion of the surrounding concrete removing the floor flange which may have to be cut out and then the capping the pipe.
Capping off toilet waste pipe.
End cap for main drain out let.
Measure from the end of each pipe and make a depth marking as directed by the push on fitting manufacturer.
Plumbers will stock caps you will need to measure across pipe axample 100m 4 inch main pipe cap.
Get a cleanout or expandable test plug that fits.
Sink disconnect pipes place end caps to water pipes disconnect out let pipe cut of to desired place cap of pipe.
The mark will tell you when the fitting is pushed on all the way which is essential for a proper seal.
If the floor flange for the toilet is set in concrete the job will be a lot more difficult than if it s on the second floor for example and the flooring can be removed to permanently close off the pipe.
Water pipe 1pm caps.
Remove the gasket and its remnants.
Turn off the feed valve drain the water from the tank unhook the feed line and remove the anchoring bolts with a wrench.
Unscrew sink lift away.
If the top of the plug still sticks out above the floor you can get an internal pvc pipe cutter which is like a rotary dremel circular saw blade on a drill shaft.
Push the pipe cap onto the pipe until its edge reaches the depth mark.
You could also probably chip it out with a knife sharp chisel.
Slice off a bit of the top of the pipe embedded in the floor.
Pull the toilet up and out of the way.
Capping them requires the use of a pvc cleaner and a pvc glue to hold the new cap securely.
Sink 50mm 2 inch cap.