Door Repair in St. Louis: The Most Common Problems and What Causes Them

Doors are the most-used moving parts in a house. The average exterior door gets opened and closed thousands of times a year, and the average interior door gets used so often that nobody notices when it starts going wrong — until the day it won’t latch, won’t close, or wakes the kids when somebody shuts the bathroom door.

Door problems are also among the most-deferred repairs on most St. Louis to-do lists. They’re annoying rather than urgent, the cause isn’t always obvious, and the typical homeowner doesn’t know whether they’re looking at a five-minute fix or a new door.

Here’s the honest breakdown of the most common door repair problems we see in St. Louis homes, what causes each one, and what the actual fix looks like.

The Door Won’t Latch

This is the single most common door call we get. The latch tongue isn’t catching the strike plate, so the door swings open on its own or has to be slammed to engage.

The cause is almost always misalignment between the latch and the strike plate — the door has shifted slightly within the frame, the strike plate has worked loose, or the hinges have dropped a fraction of an inch over time. The fix is usually small: re-position the strike plate, deepen the mortise, replace the screws in the hinges with longer ones that catch the framing rather than just the jamb. In about 90% of cases, this is a 20-minute repair, not a door replacement.

If the misalignment is severe — the latch is hitting the strike plate inches off, or the door is visibly sagging within the frame — the cause is typically settled framing or a hinge that has pulled loose, and the fix involves more carpentry. Either way, it’s a repair, not a replacement.

The Door Won’t Close – It Drags or Sticks

Closely related to the won’t-latch problem, but the door is rubbing against the frame or the floor. Common causes:

• Settled framing. Houses move. Doors that fit fine when they were installed may not fit fine 30 years later as the framing settles. The fix is usually a small amount of plane-and-trim work on the door edge or the jamb.
• Humidity-driven swelling. Wood doors expand in St. Louis summers and contract in winters. A door that drags only in August and fits fine in February is being told what to do by humidity, not by the framing. Mild cases can be left alone; persistent cases need a careful trim.
• Worn or loose hinges. Hinge screws backing out, hinges with worn pins, or hinges that have pulled away from the jamb cause the door to drop. Usually a hardware-replacement fix.
• Carpet height changes. After a new carpet install, doors can drag where they didn’t before. Fix: trim the door bottom.
• Frame issues. Less common, but if the frame itself has racked, the door won’t fit until the frame is corrected.

The Door Squeaks

The classic horror-movie sound, and one of the easiest things to fix. The cause is dry hinges or worn hinge pins. The fix is to lift the pin slightly, apply a thin film of lubricant, and re-seat — or in some cases to replace the hinge pin entirely. Five-minute repair.

The Door Is Drafty

You can feel air around the edges, you can see daylight at the threshold, and your heating bill reflects it. Common causes:

• Failed weatherstripping. The compressible seal around the perimeter of the door has compressed flat, cracked, or pulled away from the frame. Replacement is straightforward and one of the highest-return small repairs in the entire house — the energy savings often pay back the cost of the repair within a season.
• Worn door sweep. The seal at the bottom of the door has worn through. Replacement is a quick swap.
• Failed threshold. The threshold itself — the metal or composite piece at the door bottom — has worn or come loose. Adjustable thresholds can usually be raised; failed thresholds get replaced.
• Caulk or trim failure. Air getting in behind the trim itself, often combined with weatherstripping issues.

The Door Sags

A sagging door rubs the floor or the strike plate, and over time the sag gets worse. The most common cause is hinge screws that have backed out of the jamb. The fix is to replace the short jamb screws with longer ones (typically 3-inch wood screws) that reach into the framing behind the jamb. This pulls the hinge tight and lifts the door back into position. Often a 15-minute repair that solves a problem the homeowner has been living with for years.

If the door is sagging because the jamb itself has split or the framing has shifted, the repair is more involved — but still typically a repair rather than a replacement.

Sliding Patio Door Problems

Sliding patio doors are a category unto themselves. The most common issues:

• Door is hard to slide. Almost always rollers — they’ve worn flat, become clogged with debris, or come off the track. Roller replacement and track cleaning typically restores smooth operation.
• Door comes off the track. Combination of roller wear and track damage. The track itself can sometimes be repaired or capped without replacing the whole door.
• Door won’t lock. The latch and strike alignment shifts as the door settles. Strike-plate adjustment usually fixes it.
• Drafty patio door. Failed weatherstripping along the slider edge, worn weep flaps at the threshold, or compressed bumper at the closed-side jamb. All replaceable.
• Foggy glass. The seal between the panes of an insulated glass unit has failed. Glass panel replacement — not full door replacement — is usually the right answer.

Storm Doors

Storm doors are exposed to weather and they take abuse. The big four storm-door issues:

• Closer mechanism failed (door slams shut or won’t close)
• Latch worn or misaligned
• Hinge issues, especially at the top hinge where wind torque concentrates
• Glass panel or screen panel damaged

All four are repairable in most cases. Full storm door replacement is the right answer when the frame itself has racked or the door is so old that parts aren’t available.

Pocket and Bypass Doors

Pocket doors slide into the wall; bypass doors slide on a track in front of each other. Both have hardware that wears out. Most calls involve doors that have come off the track, rollers that have failed, or guides that have broken. These are repairable; full pocket-door replacement is rarely the right answer because the framing is in the wall and replacement requires opening the wall.

Door Knobs and Locks

Failed locks, sticking deadbolts, knobs that won’t turn, keys that won’t enter the cylinder, doors that lock you in or out unexpectedly — all of these are usually hardware-replacement repairs. We replace knobs, deadbolts, and lock cylinders, and we coordinate with locksmiths when re-keying or higher-security work is needed.

St. Louis-Specific Door Problems

Two patterns drive a lot of door repair in this market. First, humidity — St. Louis swings between humid summers and dry winters, and wood doors move enough between seasons to cause sticking and gapping. Second, settled framing — older homes shift over decades, and the doors that worked when the house was 30 years old don’t always work when the house is 80. Both patterns are reasons to repair rather than replace; both are also reasons door problems tend to come back. The good news: most door repairs are fast, inexpensive, and don’t require replacing the door.