Dedicated to moving in the interior of residential building, these installations usually have a reduced waiting time especially in rise running, a restrained energetic and maintenance costs, in addition to a plain and refined appearance. Samerlift modulate his offering on real demands of all residential buildings, suggesting, for example, a hydraulic lift in an apartment block of average-low housing density or, on the contrary, a lift with a gearless or geared engine in an apartment block where there are lots of floors and a considerable density. In both cases technological solutions of latest generation allow the electricity economy and the partial recovery of the initial cost.