How can we help you? When do I need a stair lift? 1 out of 2 found this helpful Each person is different, but when you feel that getting up or down a flight of stairs is a struggle or unsafe, it may be time to consider investing in a stair lift. Was this helpful? Yes (1) No (0) Category: General Related Questions Can you install a stair lift outside? I have a landing in between two straight flights of stairs, what is the solution to this? Is the stair lift noisy? Are stair lifts expensive?