How do you tear out a small plastic shower stall?

Of course remove all the fixtures first and turn off the water. Remove any trim around stall. There you will probably find the screws. Unscrew. Use box cutter to cut all the caulk around the stall and remove. If the stall does not come loose, it may be glued to the wall. Use an all saw (rent-able) and get behind the stall with the blade. Move down. If the stall is large, use the saw to cut into carrying pieces and remove. It can be a job, but it can be done.

Thank you so much! This will really help. We can't afford to have someone do the tear down. We're having someone replace the shower stall with 12x12" tiles. Can't afford the expensive stuff. This will give us about 3 inches more in this small space, not to mention, the 25 year old stall looks awful. No scrubbing can make it look good.