Start by describing the staircase precisely. A straight flight with no turns takes a straight rail, which installs quickly and costs less. Many lower-city homes have a turn at the top, a winder or a landing, and those need a custom curved rail made to measure. Mountain back-splits may have several short flights, each needing its own lift or a curved rail that runs through the landing. Send photos to installers first, and ask for an in-home measurement before any quote is final.
One buying tip most families never hear: a reconditioned straight stair lift can be a smart buy, but a reconditioned curved one rarely is. Curved rails are bent for one staircase, so a used rail almost never fits another home. A refurbished straight unit with a warranty can save money and install fast.
Think about the rest of the household too, which buyers often forget. A folded stair chair lift still takes up part of the stair. Measure the stair width and ask how much space remains. If the rail crosses a doorway at the bottom, ask about a hinged or folding rail. Check that the seat swivels at the top, so your parent steps off onto the landing instead of facing the stairs. Ask about service before you buy. With so few installers based in Hamilton itself, your technician may be driving in from Burlington or beyond, so the response time should be in writing. Battery-powered lifts keep running in an outage, and the batteries need replacing every few years. Book an annual service visit. Because a stair lift is fixed to the home, it's the kind of work the Home Accessibility Tax Credit was designed for, so keep the invoice.