Had new wood floor (unfinished...sanded, stained after installed) in our den area.
There was a creaking sound there before and 'they' said 'they' would address it. It still creaks. We're waiting for them to resolve before paying. I assume they need to go underneath to the still-unfinished basement and put in screws to tighten the floor to the subfloor? Any input is appreciated. I just want to make sure they repair it the right way and this community's input is invaluable!
Your installer "missed the boat" on this and now has to back paddle to fix from below. I hope he is not charging you for this "missed step" that should have bee down on the front side.
Good job on holding back their money until they fix what they promised.
The repair should be fairly simply. They cannot screw to the new floor to fix this noise, but they can install wood blocking with contractors adhesive to the offending spot. ...»
They simply need to locate the movement by walking around upstairs while someone listens and looks/feels for the movement of the sub floor.
Once that is located they take a wooden block and put adhesive on two sides and stick it to the floor joist while putting pressure up against the sub floor area. Then by screwing the block to the side of the joist and then one up into the sub floor board only this should stop the noise your hearing. If the noise or movement is between the two joists and a simple edge block does not fix it, then using a complete block across the two floor joists with adhesive holding it against the bottom of the sub floor will do the trick. Its a good thing they have access to this area or it would be an entirely different type of repair if they could not.