We start every maintenance visit the same way: check balance, check the auto-reverse safety feature, inspect cables and springs for wear, lubricate rollers and hinges, and tighten the hardware that's worked loose. On older torsion setups common in this area's 1960s-70s housing, we pay close attention to the center bearing and the stationary cone, since those are the parts that wear first on original equipment. If we find something past the point of a tune-up fixing it - a spring with visible gaps in the coil, a roller shaft worn oval - we'll say so plainly instead of pretending a squirt of lubricant solved it. Maintenance is preventive work, not a repair in disguise, and we're upfront when a door needs more than that.