You walk outside to head to work, run an errand, or let the dog out, and you stop in your tracks: your garage door is visibly tilted. One side rests a few inches above the concrete floor while the other is jammed down tight, or the top panel sits at an unnatural angle inside the frame.
A crooked, uneven garage door is more than just an eyesore that hurts your home's curb appeal. Because residential garage doors weigh anywhere from 130 to well over 300 pounds, that tilt is almost always a direct symptom of an mechanical failure in the door's lifting or guiding system.
Understanding what caused the door to come out of alignment is the first step toward getting it back into safe working order. Below are the five most common causes our technicians see in the field, along with essential safety precautions every homeowner should know.

