How to fix a crooked garage door?

To fix a crooked garage door that hangs unevenly or closes at an angle, you need to correct the imbalance caused by cables, tracks, or springs, with safety as priority. First, disconnect the automatic opener by pulling the red emergency release cord to allow manual movement and prevent opener damage. Close the door if possible and clamp locking pliers onto the tracks just above rollers on both sides to prevent falling while you work. Inspect cables: on torsion systems, cables should be equally wound around drums above door with no slack; if one cable is loose or off drum, it causes crookedness. To fix loose cable, you must release torsion spring tension with solid steel winding bars, counting quarter turns, then reseat cable into drum groove and rewind springs to proper tension; this is high tension work and should be done by professional for 150 to 300 dollars. Inspect tracks for loose mounting bolts or bending; tighten bolts and ensure vertical tracks are plumb and spaced half inch from door edge. Check rollers for wear or damage that could cause binding on one side; replace damaged rollers costing 10 to 20 dollars each. Check for broken spring, which makes door heavy on one side; if broken, replace both springs costing 300 to 600 dollars. After adjustments, manually lift door halfway to test balance; it should stay level and not drift. Lubricate rollers with silicone, reconnect opener, and test automatic operation several times.