Elevator. Make sure to factor the cost into your planning. Elevators & Lifts by Brand: Easy Climber- specializes in shaftless elevators with five-year warranty, which drives down installation costs. Motorized stair chairs come installed with a limited lifetime warranty. Otis - specializes in commercial elevators and escalators, but offers high-end residential options as well. Elevators are hydraulic and tend to be more powerful than most competitors. RAM - carries the Crystal and Stratus elevator lines, with prices ranging from $10,000 to $25,000 depending on the model. Stiltz - foregoes hydraulic elevation for an electric motor, resulting in a smaller footprint, quieter, and lower installation costs.