Not being able to walk up and down stairs used to mean no access to floors above or below the floor the person was on, unless they had assistance. Even with assistance the patient and the caregiver are at increased risk of fall. We sell and install stair lifts both new and used. These are also known as stair chairs and it moves on along on a mechanical tract on the side of a wall , or multiple walls if your staircase turns as it goes up. These help people who have difficulty with using stairs. They greatly improve independence and use of upper floors in home or office.