If it binds on the latch side at the bottom you may need to fix the bottom hinge screws.
How to fix door lock gap.
If the gap along the side of your door is so large that the latch won t catch or barely catches.
Pull the weatherstripping toward the outer edge of the door.
If that doesn t work shim the hinge side.
Continue pulling until it completely.
If a door binds on the latch side at the top the upper hinge may be loose.
Remove the trim and cut the nails holding the frame to the studs.
Examine the weatherstripping on the bottom of the door to see if there are holes or worn areas.
You can tighten a simple interior mortise lockset like the one shown at left as follows.
Throw the hinges i m not talking out the window here if you don t want to cause any re decorating you can adjust a door by the hinges.
If the hinges are fine you may need to take the door off and re square it from scratch.
Other times the misaligned door requires a more challenging repair like shimming the hinges.
If your door rubs near the top or drags on the floor use a screwdriver not a drill to tighten the screws.
Tighten the screws or repair the screw holes.
A visible door gap between the door and door frame.
A misaligned door results in uneven gaps along the edges and often affects closing and latching.
Reducing door gap in a latch side hinge adjustments.
Tighten the hinge screws.
A binding door may need to be planed but often simpler repairs will solve the problem.
3 if this does not help remove the knob.
In some cases a simple fix like tightening the hinges is enough.
If the screws are loose in the casing replace them with larger ones to create a tighter fit.
A drafty door with chilly drafts air blowing through your entryway.
Door gap fix repair door gaps and drafty doors a door gap resulting in light under the door or peeking around the edges of the door.
2 hold the knob on the other side of the door and turn the loose knob clockwise until it fits snugly.
Water leaking from the top of the door frame.
Gaps along the latch side of a door may be reduced by shimming out the hinges in some cases.
Screws magically work themselves loose over the years.