She wants to sleep in her own room, sit in her own chair, and move between the floors that still make this house hers. A stair lift may help the house hold that promise. But choosing one from a photograph or a feature list leaves out the parts that decide whether it will work.
You are comparing two things at once: the lift and the company that measures, installs, explains, and services it. Ask each company to walk through the same six questions. Write the answers beside each other. A confident answer is useful only when it describes what will happen in this house.
1. Can she get onto and off the seat at both ends?
What makes it hold: There is enough level space for her to approach the seat, turn, sit, raise her feet, and stand again. The parked seat does not block the doorway or leave her stepping into the edge of the stairs. If the rail extends beyond the staircase, you know exactly where it will end and what will remain usable around it.
Ask the provider to mark the seat position at the top and bottom. Put a chair in each approximate position if that helps you see the transfer. Have your parent show how she would approach it using whatever she normally has with her. Compare swivel controls, arm positions, footrest height, and the amount of room needed to stand.
When it becomes a care-team question: She cannot sit down, stand up, or turn at either landing without someone lifting, steadying, or directing her. Tell the care team what the provider proposes and ask what kind of help she will need at each end. The lift can carry her between floors, but it cannot solve a transfer that the landing does not support.
2. Does the lift fit the staircase people actually use?
What makes it hold: The provider measures every turn, doorway, handrail, radiator, trim edge, and low ceiling point. You know how much stair width will remain when the seat and footrest are folded. Other people can still use the stairs, and nobody has to step around an unexpected rail end.
Ask each provider whether the proposed rail is made for a straight run or shaped for this staircase. Request a drawing that shows where the rail starts, stops, turns, and attaches. Compare the finished footprint, not just the folded seat width in a brochure. If a door opens near the stairs, open it during the visit.
When it becomes a care-team question: The only workable position requires her to walk across an unsafe-feeling landing, manage extra steps, or leave behind the device she needs on the next floor. Ask how movement on both floors is supposed to work. A ride that ends without a usable next step does not complete the route.
3. Can she operate it on an ordinary tired day?
What makes it hold: She can reach and hold the control, place her feet, use the belt, and understand what to do when the lift pauses. The controls make sense to her without a family member giving instructions from below. Any folding or swiveling parts she must handle are within her reach and do not require more hand strength than she has.
Ask for a demonstration using the model or control style being proposed. Do not let a salesperson operate every part for her. Have your parent try the sequence while someone quietly observes: approach, sit, secure herself, move, stop, swivel, stand, and leave the landing. Compare what she can do independently with what each provider assumes she can do.
When it becomes a care-team question: She forgets the sequence, cannot use the controls consistently, or tries to stand before the seat is in position. Bring those exact moments to the care team. Ask whether another setup, supervision, or a different way of using the floors is needed.
4. What happens when power or equipment fails?
What makes it hold: You know whether the lift can complete a trip during a power interruption, how it signals a charging problem, and where it must be parked to recharge. Someone in the family knows what common lights or sounds mean. The provider explains what can be checked without opening or repairing the equipment.
Give each company the same situation: she is upstairs, the lift will not move, and you are not in the house. Ask who she calls, what that person can do from outside the house, and how she gets essential help while the lift is unavailable. Compare the answers, including evening and weekend procedures.
When it becomes a care-team question: Losing the lift would also cut her off from the toilet, food, an exit, or the person who helps her. The care team needs to know that the stairs are a single point of failure. Make a temporary same-floor plan before treating the lift as the only route.
5. Who owns service after the installer leaves?
What makes it hold: The written proposal names the company responsible for service, the covered equipment, the work that is excluded, and the way you request help. You know whether the local installer services the lift or passes the request elsewhere. You also know whether another qualified company could work on it if the original provider becomes unavailable.
Ask each provider for the exact model identifier and a sample of the service paperwork. Ask who stocks commonly needed parts, what happens when a part is not available, and whether service requires an ongoing agreement. Do not compare promises such as fast or priority service. Compare the call path, the responsible company, and what the written terms actually require.
When it becomes a care-team question: A service delay would leave her on the wrong floor or leave one helper trying to move her on the stairs. Tell the care team how long the household can function without the lift and what same-floor arrangement is available.
6. Can the house change again without trapping you?
What makes it hold: You understand whether the rail can be altered, relocated, removed, or reused if she begins living on one floor or moves to another room. The agreement says who is responsible for removal and what happens to holes, trim, flooring, and electrical work. If the equipment is used or rented, the paperwork identifies its condition and who owns it.
Ask every provider to separate the lift, installation, electrical work, maintenance, and eventual removal in the written scope. Compare what happens after the first plan ends, not only what happens on installation day. Keep the model information, operating instructions, service contact, and agreement where another family member can find them.
When it becomes a care-team question: Her ability to transfer, follow the controls, or use the rooms at either end changes. That does not mean the promise has failed. It means the house is asking for another decision. Show the care team how she uses the lift now and ask whether the route still matches the help she needs.
Put the finalists through the same test
Before choosing, make one page with six rows: transfer space, staircase fit, daily operation, power interruption, service, and later removal. Give each provider a column. Record only answers tied to the proposed model and your staircase. Mark any answer that depends on you always being present.
Then ask the hardest question plainly: if she is tired, alone, and trying to reach the other floor, what part of this plan still belongs to her, and what part belongs to someone else?
A stair lift can carry a person between two landings. Your decision is whether the whole route, the people around it, and the company behind it can help keep her here.