Start by having someone walk across the floor while you listen from below.
Second story floor creaking.
Next take a thin wood shim and coat it with carpenter s glue.
If the floor is over a basement or crawl space go below to make the repairs.
I can slide a putty knife under the wall and feel the nails.
Or if separating floor from subfloor is causing the creak drive two nails at opposite 45 degree angles into joists which you can locate with a stud finder.
7 yr old home the floor has started to separate from the wall.
Separate wooden bridging members to eliminate noise problems.
Then fill the holes with wood filler.
Squeaky floors are almost always caused by nails that missed the floor joists when the installer was installing the floor.
When you hear a squeak have the person above rap on the floor so you can pinpoint the exact spot.
Floors get squeaky when wood dries out either finished wood or a wooden subfloor.
The flooring is vinyl tile.
Occasionally boards or even floor underlay will warp slightly as well.
The floor joist and wall base wre nailed and the joist meet the center line of the house main beam 4 feet into the master bedroom.
Jeff i live on the 2nd floor of a multi unit building and my bathroom floor squeaks like crazy.
That s probably one of the worst things you could do to fix a squeaky floor.
Fixing a squeaky floor that s carpeted can be challenging.
If there has been significant differential settlement there is more of a likely hood of damage to sub floors and creaking to occur.
I am having the same problem.
For squeaky floor repair begin from underneath the floor if you can.
This can cause subfloor nails to pop loose and the subfloor.
Couldn t you just use shims to stop the squeaking.
The easiest way to silence a squeaky floor on the second story is to drive a 1 5 8 self tapping screw into the joists where the squeaking plywood is.
Thus the floor may start creaking because the wood sections or pieces of the flooring are rubbing together damaged or the nails have pulled loose.
With hardwood floors drive ring shank or cement coated flooring nails into the seams between boards.
If the underside is covered you will have to work from above.
This might require you lifting up any carpeting or removing any other layers of flooring that are in the way.
It makes quick second story floor repairs and works right through carpeting or other floor coverings.