You have to remove it and properly repair the underfloor or main flooring. Many cases of this appear in mobile homes where the underfloor is made of K3 or chip-board. Remove this and replace with plywood before replacing the laminate.
carpenter crayon
If you want to raise a sagging floor, you can put a piece of plywood on the floor. You can then add new flooring over the piece of plywood.
You can fix a sagging door on a 1996 Suburban by replacing the door pins and the bushings.
Three-fity.
With the Steel cross bars
Replace hinges.
If you go to Napa they sell push pins to hold up sagging headliners.
One of the proven methods to brighten laminated wood floors is to taka a damp rag, add white vinegar and rub it on the floor.
Needs more information re. "built up "
Depends on level of hardness and polish.
It wont accept wax.. sorry
Air bag switch is making contact possibly from the cover sagging I am working on one right mow I will try,to prop to sagging cover