Profile: Invalifts Ltd offer platform lifts, self supporting lifts and stair platform lifts for internal and external use. Our inclined stair lift is an excellent solution for access between either a short or longer flight of stairs, straight, curved or even a staircase with a mid-landing. The Stair Riser is suitable for both internal or external use and can be fixed to a structural supporting wall or via stanchion posts fixed to a structural staircase.