Depending on the number of stairs and the model of stair lift you opt for, the average price to purchase and install a standard straight lift is about $3,700.  Stairlift installations typically range from $3,700 to $20,000. Total cost depends on several factors, such as indoor vs. outdoor, curved vs. straight, and the height of your staircase. Mobility Works will provide a free in-home consultation where a more precise cost estimate can be provided. We also provide financing options so you can pay for your lift in monthly installments.