Take off the top hinge, frame side. Shim it with something thin, cardboard or something. Place it towards the left in the hinge pocket, further away from the knuckle of the hinge. Screw hinge back on. This will help move the knuckle towards the jamb and will help lift the door a bit.
Tightening Your Door Jamb
If you find the door sticking on the bottom edge, then the most likely culprit is the bottom door jamb. This is easily seen to. Simply remove the jamb and screw it back on as tight as you can. It's that straightforward.
The first thing I would do is check the hinges. If the screws are loose, then tighten them. That may solve the problem and my first sentence is wrong. If the first sentence is right, then I would next take a small piece of wood and butt it up against the hinge and hammer it, pushing the jamb out.
A gap between the bottom of the front door and the threshold is easily fixed with a door sweep! Door sweeps reinforce the seal between the bottom of the door and the door jamb, meaning you get extra protection from dirt, bugs, moisture, and wind.
There are many reasons this might happen—often, the contractor didn't line up the screw correctly during installation, or humidity caused a hinge to no longer fit into its designated notch. Try taking the hinge off and reinsert the screws one at a time to see if this will fix your binding problem.
When it comes to fixing a sagging door, you need to look for one of three main culprits: a swollen door due to humidity, loose hinges, or a shifted door frame. Generally, the hinges are mostly responsible for sticking doors, and fixing them is quite easy.
Tighten Hinges
The problem could be as simple as a loose screw causing your door to sag and miss the strike plate hole. With a screwdriver, tighten each of your hinge screws. If one of the screws keeps spinning, it's stripped out, and could be the source of your problem.
Will WD40 help a swollen door? WD-40 can help reduce friction and might loosen up a swollen door temporarily. But it's not a permanent fix since it doesn't tackle the root issue, like moisture or humidity. For a long-term solution, try drying out the door or sanding down the swollen areas.
Sill. Sills are the bottom component of a door frame. They are the part of the door that gets sealed and fastened to the floor.
Loose screws in the hinges can cause the door to sag and rub at the bottom. Use a screwdriver to tighten all the screws on both sides of all the hinges. Be careful not to over-tighten or strip the screws. If tightening the screws doesn't solve the problem, you can try slightly adjusting the hinges.
If you have a door that sticks, sags, or squeaks, it needs to be adjusted or planed. If you have bent hinges, the cost of the materials will add to the following ranges. To plane and adjust an interior door, expect to pay $96 to $180. You may have to pay $181 to $336 to adjust an exterior door.
If the door is still sagging after tightening and replacing screws, you can try adding shims. Shims are thin pieces of wood or cardboard placed behind the hinge plate to adjust the door's alignment slightly.
These might be caused by heavy wear and tear, age, previous damp or a build-up of paint layers over the years. Luckily, our guide will explain that they're quite easy to cure. A door can drop because its hinges have got loose. First, check all the hinge screws to make sure they're still tight.
This might be caused by loose screws in the top hinge plate. Tighten them if they are loose, as that will be causing the door to hang lower than it should be. If you can't tighten the screws, then replace them with new ones.
Often, a door not closing properly is a hinge issue. Grab a screwdriver and tighten those screws on both the door and the frame. If the screw holes are feeling a bit loose, consider using longer screws, such as 2-3" screws or inserting wooden dowels (or even some wooden toothpicks) for a sturdier fix.