A vertical sliding enclosure for a bathtub, including three vertically slidable glass panel assemblies, wherein each assembly contains a slidable glass panel attached by the left and right glass connectors serving as the transverse position limiters which limit the panel in the transverse movement, a pair of left and right housings having the respective longitudinal tracks for the panel in the vertical movement, and room for a counterbalancing weight system containing left and right pulleys and weight combination so that a weight of the glass panel can be balanced. The enclosure provides a sufficient height for a user to access the bathtub when the three panels are raised to their maximum heights. When in their lowered position, the three panels prevent shower water from entering the bathroom floor.