Clean the steps thoroughly
Remove loose concrete, dirt, paint, and debris
Chip away all crumbling or damaged material
Brush and vacuum the area
Fill small cracks with concrete crack filler
Patch larger holes and broken edges with concrete repair mortar
Apply a bonding agent if required by the repair product
Rebuild missing sections with formwork if needed
Smooth and shape the repair to match the step
Let the repair cure fully
Sand or grind high spots after curing
Seal the repaired area with a concrete sealer
Check for drainage or water issues that caused the damage
Repair any underlying moisture problems
Repaint or resurface if desired