Screwed in Shower Surround Removal. Cut away all the caulking that is holding the shower surround to the wall with a utility knife. Move slowly while cutting around the edge of the surround wall so you minimize the damage to the underlying surface.Then remove all the screws with either a screw driver or a screw gun.fter you have cut away the caulking as specified in the directions above, you can start carefully peeling away the plastic shower surround from the wall. The adhesive will most likely cause some damage to the wall in the removal and the drywall should be repaired with joint compound afterward.