Why is my door sticking or dragging? What to check before replacing it
Learn what rubbing, scraping, or a heavy sliding patio door can mean, which checks are safe, and when the problem needs door repair.
A sticking door may have an alignment problem, worn hardware, or an obstruction in its path. Where it catches helps separate those possibilities. Replacing the door is not the first step if the fault is in a hinge, roller, or the fit around it.
This guide focuses on storefront entrances, commercial doors, and sliding patio doors, the entrances covered by Glassma's door repair service. Describe other door types when contacting us so we can confirm the scope.
If the door is hanging loose, its glass is damaged, or moving it takes force, stop testing it. If it cannot close or lock, start with unsecured-door help.
A hinged door rubs or catches
A hinge supports the door's position in the frame. Wear or looseness can let the door sag, changing the gaps around it and where the latch meets the strike, the plate it closes into. Tight weatherstripping can also interfere with closing. Schlage describes these causes in its door-alignment guidance.
Use what you notice during normal operation. Keep clear of closing edges and do not lift the door to test a theory.
| Symptom | Possible explanation | Next step |
|---|---|---|
| An upper corner rubs the frame | The door may be out of alignment | Note the corner and any uneven gaps for a fit and hinge check |
| The bottom scrapes | Clearance may have changed because of an obstruction, flooring, or how the door hangs | Look for a loose mat or a recent flooring change before assuming the panel needs cutting |
| It moves freely until almost closed | The seal or latch may be interfering at the final approach | Note whether contact is at the edge, seal, or strike |
The location narrows the search but does not prove which part failed. If the problem started after new hardware or weatherstripping, that history matters. Seasonal changes can also affect fit on some doors, so mention a recurring wet-weather pattern without assuming the door needs trimming.
A sliding patio door feels heavy
Sliding doors need a separate check of the track, rollers, and panel alignment. Dirt in the track can interfere with travel, while an incorrectly aligned panel may drag. Andersen covers these points in its maintenance checklist and operating-panel guide.
Look for visible debris and follow your door manufacturer's cleaning instructions. If cleaning does not resolve the problem, roller condition and alignment need checking. Do not lift out a heavy glazed panel or apply an adjustment intended for a different model.
Note whether resistance occurs throughout the travel or at one spot. "It catches halfway open, even after cleaning the track" is a useful description. It gives the technician a starting point without requiring you to identify the failed roller or part.
What you can safely check
Move a loose mat or another movable obstruction clear if the door is stable and you can stay away from damaged glass. If that was the whole problem, normal operation may return.
Photograph fresh scrape marks and take one wide picture of the opening. Include the location of visible damage without climbing, getting underneath the door, or removing covers. Avoid sanding or cutting a rubbing edge before the cause is known.
What a repair should accomplish
The repair should address the identified cause and restore smooth movement, proper closing, and locking. If sticking returns after an adjustment, share what was done and how long it helped. Another adjustment needs an explanation of why the previous one did not last.
Mention slamming separately if a closer is fitted. That can require a hardware check as well as correcting the rubbing point.
For help in Seattle or Puget Sound, request door repair with your city, where the door catches, when it started, and whether it still closes and locks. You do not need measurements or part numbers to begin.