Notice the change in use
Windows and doors usually tell you they need attention through small changes: a handle feels loose, a latch needs lifting, the door rubs at one corner, or a window no longer sits square in its frame. These details can come from movement, worn hardware, moisture, or a frame that needs adjustment.
Do not force a stiff latch or keep slamming a door into alignment. That can damage the fitting and the surrounding timber, turning a small adjustment into a more involved repair.
Describe the symptom clearly
When contacting a repair team, say when the problem occurs, which part moves, and whether it changes in wet or dry weather. A short video can be more useful than a close-up photograph because it shows the movement.
If the frame, trim, or timber around the opening is soft or marked by water, the fitting may not be the whole story. That is worth identifying before the repair is planned.
Common questions
Is a sticking door always a hinge problem?
No. It can come from hinges, the latch, frame movement, swollen timber, or changes around the opening. The symptom needs to be checked before choosing the repair.