Identify the exact location of the squeak by walking slowly across the stairs and marking the spot where the noise occurs.
Tip: Have a partner stand nearby to point out the movement in the tread or riser.
2
Apply a dry lubricant, such as graphite powder or paraffin wax, into the gaps between the tread and the riser to see if the noise is caused by wood-on-wood friction.
Tip: This is the least invasive method and should be tried first.
3
If the squeak persists, drill a pilot hole through the tread at an angle into the stringer or the supporting joist.
Tip: Use a countersink bit to ensure the screw head sits flush or below the surface.
4
Drive a 2-inch trim screw through the pilot hole to tightly secure the tread to the frame, eliminating the gap that causes the noise.
Tip: Do not over-tighten to avoid splitting the wood.
5
Repeat the drilling and screwing process for any other identified squeaky spots along the stair flight.
Tip: Place screws near the edges of the tread for maximum stability.
6
Fill the screw holes with stainable wood putty using a putty knife to hide the repair.
Tip: Overfill the hole slightly as the putty will shrink upon drying.
7
Once the filler is dry, sand the surface flush and apply a matching stain or paint to blend the repair with the rest of the staircase.
Tip: Use a fine-grit sandpaper (220 grit) for a smooth finish.
8
Walk on the stairs multiple times to test that the squeak has been eliminated and the tread is stable.
Tip: Test the stairs from different angles to ensure no new friction points were created.
Pro Tips
Always pre-drill holes to prevent the old wood of the stairs from cracking.
If accessing the stairs from underneath is possible, use shims and wood glue for a more permanent fix.