1 On average, getting concrete floors can cost anywhere from as little as $2 to as much as $17 per square foot. 2  An economical option, which can just change the tone of the concrete floor, will typically cost less than $6.owever, with a pinch of polish and a touch of color, a boring slab of concrete can quickly turn into an eye opener. The cost of concrete floors will depend on the style that you choose for your home, the size of the room and the professional contractor performing the job.