How can we help you? How does the stair lift attach to the stairs? 1 out of 3 found this helpful Our stair lifts install directly to the treads of your stair case, not the wall. There is no need to reconstruct or reinforce walls in order to install. Was this helpful? Yes (1) No (1) Category: General Related Questions What if something is in the way or on the track of the stair lift? How is the stair lift powered? When do I need a stair lift? What happens if my stair lift breaks down?