Replacing Stair Treads Even the most sturdy stairs will become worn with time. Years of active use are bound to take their toll, requiring homeowners to conduct routine maintenance from time to time. Thankfully, replacing stair treads is something you can do on your own with a bit of patience and do-it-yourself savvy.To get started, inspect the undercarriage of the staircase to get an idea of how the stair was installed originally. The best way to remove old treads is by simply reversing the steps of the installation process. After removal be sure to check the framing for integrity before installing the new treads and make any necessary repairs. Be sure to use adhesive as well as nails when mounting your new treads for the highest quality job.