In the event that tightening the screws does not help you may need to remove the wall mounts and reinstall the towel bar.
How to fix towel bar on shower door.
Rather use a screw with slightly larger threads.
After the door has dried attach the towel bar in place by pressing the suction cups against the glass.
Insert toggle bolts in each bracket.
Then unscrew the mounting plate from the wall and remove the old anchors.
Step 4 reinstall the shower.
Use a mixture of vinegar and hot water or any glass cleanser.
Remove the post and the bar.
Loosen the set screws under the towel bar and remove it from the wall.
Don t use a longer screw as this may push through the back of the towel bar.
No need for plaster repair or drywall etc.
Step 2 remove the towel bar.
On some towel bars you can actually see the screws that hold the bar in place.
The easy fix is to simply tighten the screws until snug.
Use a finger to push them toward the outside edge.
How to repair the towel bars on sliding shower doors.
You may have to use a larger screw to get some bite from the handle.
Others have a decorative cover that hides the screws.
They become loose over time and will pull out if not repaired.
Once in place press firmly a second time at the center post to make sure it is all the way on and all air is removed.
Step 1 remove the shower door.
Remove the screws that attach to the hinges and place them safely away from the shower drain.
Remove the lower guide rail lift up on the shower door and remove it from the tracks place the door on a flat.
Covering the drain with a washcloth can help prevent losing items while you work remove the door completely and pull the screws free.
Most the time simply taking a screwdriver and tightening the screws will re secure the towel bar and keep it from wobbling or coming loose.
Clean or replace as needed.
This bar uses two brackets one on each end.
Step 3 replace the towel bar.
To ensure a good grip apply firm pressure when pressing it on and then smooth out any air bubbles.
Loosen the bracket screws and remove the brackets from the wall.
Lock down the suction cups.
When towel bars come loose it s usually because they weren t well fastened in the first place.
If needed enlarge the bracket holes in the drywall with a screwdriver and insert the toggle bolts in the holes.
Loosen the setscrew that fastens the post to the mounting plate.