Mending a creaky staircase is a lot like repairing your creaky floorboard.
Creaks in many cases are caused when two pieces of timber rub against one another and repair shouldn't require any particular professional tools (just the essential patience that you need for the majority of DIY tasks).
Begin by locating the source of the creek.
This will involve removing floor covering and stepping in different areas all over the tread of the creaky stair.
If the staircase underside is not encased with plaster, you may be in a position to mend them from below.
If you squeeze wood glue into the gaps in between loose tongue and groove joints separating the rise and also the front of the tread, it is possible to force it along the joint using a fine bladed knife and repair a creek originating from the tongue and groove.
When you have access to the underside, you can fit a triangular prism adhesive block in between the back of the riser and the underneath of the tread to bond the two with each other better.
If the underside is inaccessible, you can drill and countersink screws into the front edge of the tread (as well as consequently into the riser beneath) to force the planks tighter together.
A minimum of three screws is going to be needed for this kind of repair.
If the treads or risers start to shrink, they might become loosened from their housing joints which are cut into the sides of your staircase.
When you have access to the underside, you will be able to see how the rises and treads are held in their housings with triangular timber wedges.
A loose wedge may very well account for a creek in your steps.
Remove the loose wedges, making certain to chip away any old adhesive or other debris, next cut new wedges to fit the empty spaces.
Apply a little bit of wood glue to the gaps prior to placing the replacement wedges and then after that tap the new wedges in with a hammer to make sure they're flush and tighten the joint.
In the event you don't have access to the bottom; drill and countersink holes along the edge of the loose risers and treads, next screw into the sides of the staircase at an angle in order to secure them before covering any exposed screw heads with filler.