The giveaway in El Mirage is usually the same one you'd get anywhere the summers run hot: a door that binds or drags in one spot, then finally hops the roller out of the rail on a day it's been opened and closed a dozen times. Severe summer heat cycles the metal on the track and the door panel, and enough of those cycles loosens a bracket bolt that was fine the year the house was built. On a 2004-era house that bolt has had two decades of that cycling, which is enough for one to work itself loose even on newer hardware. If your door only drags going up, or only on one side, that's usually a track alignment problem, not a spring problem - worth mentioning when you call so we bring the right parts.