Door swings open or closed on its own
A door that drifts open or shut by itself is hanging slightly out of plumb, so gravity pulls it one way. The usual fix is to tap out a hinge pin, give it a slight bend with a hammer, and tap it back in. The bent pin adds just enough friction to hold the door where you leave it.
Why a door drifts
Houses settle, and door frames go a little out of plumb over time. Even a small lean is enough to make a door on free-swinging hinges drift open or closed on its own.
You can fix the lean itself by shimming or adjusting the hinges, but most of the time adding a little friction at the hinge is all it takes. A slightly bent hinge pin does that for free.
What makes a door swing
Gravity pulls the door toward the low side.
The door has nothing to slow it down.
The door sags and leans.
HVAC airflow or a draft pushes it.
| What you see | Likely cause | Fix |
|---|---|---|
| Slowly drifts open or closed | Frame slightly out of plumb | Bend a hinge pin. |
| Door sags at the latch side | Loose hinge screws | Tighten or fix stripped screws. |
| Slams when the heat or AC runs | Air pressure | Door stop, or leave it latched. |
| Rubs the frame too | Sagging or out-of-square door | Fix the hinges first. |
Let's fix it
- Close the doorClose the door and leave it latched. The latch holds its weight, so you can take out one hinge pin at a time without the door dropping.
- Tap out the top pinPut the tip of a nail set or large nail under the head of the top hinge pin and tap upward with the hammer. If it's stuck, wedge a flathead screwdriver under the head and tap it. Pull the pin out.
- Bend the pin slightlyLay the pin across a gap, such as two scraps of wood or the jaws of a vise, and strike the middle once or twice with the hammer. You want a slight bend you can just see, not a sharp kink. Wear safety glasses.
- Tap it back inLine the pin up with the hinge and tap it back down. It should take a few firm taps to go in; that resistance is the friction that will hold the door.
- Test itOpen the door partway and let go. If it still drifts, bend the pin a little more, or do the same to the middle or bottom pin.
If it still drifts
If a bent pin doesn't hold it, check the hinge screws. Loose or stripped screws let the door lean, and tightening them may fix it.
A hinge-pin door stop or a small friction hinge adds resistance without bending anything.
What a pro typically charges (a rough estimate; prices vary by area): A handyman typically charges $75–$150 to adjust or rehang a door.
Other door problems
Door swing questions
Why does my door open by itself?
The door frame is usually slightly out of plumb, so gravity pulls the door open or closed. A little friction at the hinge stops it.
Will bending a hinge pin damage the door?
No. A slight bend just adds friction. If you overdo it, the door can feel stiff, so bend it a little at a time.
Can I use a different fix?
Yes. A hinge-pin door stop or a friction hinge adds resistance, and shimming a hinge can correct the lean itself.
Which hinge pin should I bend?
Start with the top one. If the door still drifts, do the same to the middle or bottom pin.
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