When you get a chair lift for stairs, most of them will be new. However, there are also used ones. If you are purchasing a unit, you will need to decide what the differences are between both the new and used chair lifts.
For starters, when you get a chair lift for stairs, you will have to install a special track. If your stair case is not the same size as your original staircase, the lift will not fit. You do not need to worry, though. You can always cut the track based on the size of your stair case. This is the case if you are making it shorter. You will not be able to lengthen the track if your staircase is too short.
Another issue you should think about is whether or not you get a warranty. You can always get a short warranty, or you may choose not to get one period. If you get a warranty that is full factory, you will maintain an excellent protection against your investment. Should something go wrong with the unit, you will gain peace. You will not have to pay extra money to get it fixed.
Price is something else you should think about. Used chair lifts will still be cheaper than purchasing new ones. However, in many cases the price difference may not be worth it. You should also consider the brand that you are buying. If you purchase from a cheaper brand, you might end up paying less than from a more expensive one.
Let us make the assumption that you were evaluating two different brands of stair lifts. One is used and the other one is new. The price for the used stair lift will naturally be lower, though it may only be a few hundred dollars. You have to think about what you would be getting purchasing a stair lift too low. Even with the best package, more than likely, you would be purchasing a lift that has either a short term warranty or one at all and/or it may not fit on your stair case.
In summary, if you need to get a chair lift for stairs, then you need to make sure that you get a unit that works. You should get something that is not only reliable, but also worry free. However, you will need to consider both the warranty and the variation of price. With that in mind, it is probably best to stick with the new unit. If you are sure that your stair case is the appropriate size, you can consider getting a used unit.