Homeowner Guide

Why Are My Doors Sticking?

A door that used to close fine and now drags on the frame, binds at the top corner, or won't latch cleanly is one of the most frequent reasons Missouri homeowners reach out to us. It's a genuinely useful early signal — but it isn't automatically a foundation problem, and it's worth understanding the difference before assuming the worst.

What Usually Causes It

A sticking door has four or five common explanations, and in our experience they turn up in roughly the order below. The first is completely ordinary and has nothing to do with the foundation; the rest run from a five-minute hardware fix to a genuine structural signal. Sorting out which one you are dealing with is mostly a matter of pattern — how many doors are affected, which doors, whether the problem comes and goes with the seasons, and whether anything else in the house changed at the same time. In Missouri, the swing between a humid summer and a dry, heated winter is wide enough that some door movement every year is normal and expected.

• Seasonal humidity. Wood doors and frames take on moisture in humid months and give it back in dry ones, swelling and shrinking a little each cycle. This is normal, it is not a foundation issue, and it usually affects the same one or two doors year after year without ever getting worse.
• Worn or loose hinges. Screws back out of the jamb over the years and the door sags on its hardware, catching on the latch side or dragging at the bottom. Tightening or replacing the screws, or shimming a hinge, fixes it — the frame itself has not moved.
• Uneven foundation settling. When one corner or side of the house drops relative to the rest, the door frame racks slightly out of square and the door binds, usually at the top corner or along the latch edge. This is the explanation that matters, and it rarely travels alone.
• A plumbing leak, a drainage change, or nearby excavation that disturbed the soil under one part of the foundation. Doors over that area can start sticking within a season or two of the change.
• A sudden large weather swing — a very wet spring after a dry winter, or the first hard freeze after a warm fall. This can push a door that is already marginal into catching, then ease off again when conditions normalize.

How to Tell the Difference

A humidity-related sticking door is usually limited to one or two doors, follows the seasons predictably, and has been a mild annoyance for years without ever getting worse. A foundation-related sticking door tends to arrive with company: new cracks above the door or at nearby window corners, a door that closed fine last year and now consistently does not, or two or more doors on the same side or corner of the house starting to stick around the same time. A useful test is to notice when it happens. If the door is tight every August and fine every February, that is wood responding to humidity. If it started sticking last fall and has not let up since — through a dry winter, when humidity swelling should have reversed — the frame is likely being held out of square by something that does not care about the weather. One more distinction is worth drawing: a door that rubs evenly along the whole latch edge is behaving differently from one that has opened a visible wedge-shaped gap at the top or bottom, which points to the frame rotating rather than the door itself swelling.

• Count the doors. One is usually hardware or humidity; two or more on the same side of the house is a stronger signal that the frame is moving.
• Look at the gap. Even rubbing along the latch edge suggests swelling; a wedge-shaped gap that is wider at the top or the bottom suggests the frame is out of square.
• Check above the door. A fresh diagonal crack running up from the corner of the casing is the single most useful thing to find, and it changes the answer.
• Note the season and write down the date it started. If the sticking does not reverse when the humidity does, that is the point worth acting on.
• Try the hinge screws first. If a long screw into the top hinge or a thin shim behind it solves the bind, the frame never moved and you are done.
• Hold off on planing. Shaving down a door whose frame is still shifting just means planing it again next season — fix the cause first if there is one.

This content is reviewed by the Missouri Foundation Repair editorial team and informed by licensed-contractor sourcing, manufacturer documentation, and established industry standards for Foundation Repair. Read our editorial standards.