The average cost to repair or replace stairs is $1,000 to $2,000, including materials and labor. Staircase repair costs are influenced by design complexity, material choice, labor rates, and stair shape. Common stair repairs include painting, carpeting, and structural improvement with specific material types.

The simple method of screwing down a stair tread can do wonders for keeping it in place and also fixing creaky stairs. Usually, three screws per tread should be enough to do the trick. Just make sure any screws that you insert sit below the surface of the tread so that they don't create their own hazard.