Sometimes it s an issue with the closing mechanism.
Glass door closes crooked.
Keep an eye on the door trim as you tighten.
Correcting the issue improves your door s operation.
Close the door to check the fit.
It should extend diagonally below the side that opens then all the way up to the side of the hinge.
One edge rubs and it makes it hard to close or open the door.
Flatly position the turnbuckle by the bottom corner of the door.
Other times the hinges or latch on the storm door aren t screwed in tightly.
The last ditch effort fix for the problem is to remove the door from the hinges and sand away at the trouble corner.
It s rare but you might find that you can t draw in a hinge at all because the jamb is already tight against the framing or shims.
Reattach the head stop first otherwise it could fall out.
In most cases having a crooked door means that it no longer closes smoothly.
When your storm door won t close all the way you can often make some simple adjustments to correct the situation.
Open and close the door to make sure that the turnbuckle isn t blocking the door seal then mark its screw holes with a pencil.
Roll the door toward the latch side jamb then turn the adjustment screws until the door is parallel with the jamb.
If you begin to create gaps at the trim joints stop.
Hold door hinge against cardboard and use utility knife to cut around hinge.
Align it in the bottom track and then tilt it up.
Remove appropriate hinge from door and jamb.
This is guaranteed to fix your problem but requires a lot of work.