Written by Micky Down, Micky's Property Services ·
Why stairs creak
A traditional staircase is built from treads (the parts you stand on), risers (the upright boards between them) and two strings, the long side boards that hold everything together. The treads and risers sit in grooves in the strings and are held tight with small timber wedges and glue blocks underneath.
Over time the timber dries and shrinks a little. Glue lets go, wedges loosen and nails lose their grip. Once there is even a tiny gap, the tread flexes under your weight and rubs against the riser, the string or a nail. That rubbing is the squeak. Central heating and seasonal changes in humidity make the movement come and go, which is why a step can be silent for months and then start again.
Finding the noisy spot
Before fixing anything, pin down where the noise comes from. Work up the stairs one step at a time, slowly, and stand on different parts of each tread: the front edge, the middle, near the wall and near the banister. Mark any step that creaks with a piece of tape.
Then ask someone to stand on the noisy step while you watch and listen closely. Look for the front edge of the tread lifting or dropping against the riser below, or a slight movement at the wall side. If the noise is at the front, the joint between tread and riser is the likely cause. If it is at one end, the tread may have come loose from the string. Knowing this saves a lot of guesswork.
Fixes from above
On bare or painted stairs, the common fix from above is to screw down through the tread into the top of the riser below, using countersunk screws with pilot holes so the timber does not split. The heads are then filled and finished. Some people push fine talc or graphite into the joint, which can quieten a light squeak for a while.
These fixes do not always last. A screw from above pulls the tread down but does nothing for loose wedges underneath, and powder only masks the rubbing. If the step keeps moving, the noise usually comes back, sometimes on the step next to it.
Fixes from below
The better repair is usually from underneath, where the joints can be seen. Loose wedges are knocked out, glued and driven back in tight. New glue blocks are fixed into the angle between tread and riser, and small screws can be added to pull the joint closed. This stops the movement rather than hiding it.
It only works if the underside can be reached. Many staircases have an open cupboard beneath them, which makes this straightforward. Where the underside has been plastered over, a small access panel may be needed, which then has to be made good. If you are thinking about under-stairs storage, it is worth sorting creaking treads while that space is open.
Carpeted stairs
Carpet hides the joints, so fixes from above are harder. Special screw kits exist that drive through carpet and snap off below the pile, and they can work on a single tread. For several noisy steps, or where the cause is not clear, the carpet usually has to be lifted at least partly, or the work done from below so the carpet can stay. If you are planning to replace the carpet anyway, that is the ideal moment to have the stairs quietened.
When it is more than a squeak
A creak on its own is mostly a nuisance. It is worth getting a carpenter to look sooner if a tread is split or cracked, if a step visibly drops when you stand on it, if spindles are loose or broken, or if the handrail moves when you lean on it. Those affect safety, not just noise.
Our staircase repairs service covers creaking treads, loose or broken spindles and handrails, without replacing the whole staircase. It sits within our wider carpentry work, so other small jobs can be dealt with in the same visit. If you have a door that has also started catching, the guide on a door sticking or not closing explains why that happens. To arrange a free quote, contact us or call 07735 852901.