A garage door is the noisiest thing most houses do on a daily basis, and the specific noise is a decent diagnosis on its own. Here is what each one usually points at, and which one means stop using the door right now.

A Single Loud Bang

Start here, because this is the one that matters. A torsion spring breaking sounds like a gunshot in the garage, and people routinely mistake it for something falling over. After it happens the door either will not lift at all or lifts a few inches and stops.

Do not keep pressing the remote. The opener will try to lift the full weight of the door on its own and strip its gears trying. Look at the spring on the bar above the opening; if there is a visible gap in the coil, that is your answer.

Grinding

Usually rollers. Steel rollers with exposed bearings pick up grit, the bearing surfaces wear, and they start dragging in the track instead of rolling. It gets worse gradually, which is why people stop hearing it.

Grinding coming from the opener rather than the door is different and more urgent. That is often the drive gear stripping, and it will eventually leave the door stuck wherever it is.

Squealing or Screeching

Dry hinges and roller stems. This is the most common noise and the easiest to fix. A garage door has a lot of pivot points and they all want lubricant once or twice a year.

One caution: do not spray the tracks. The track is a guide surface, not a bearing surface, and grease there collects dust and grit and accelerates roller wear. Lubricant belongs on hinges, roller stems, springs and the opener rail.

Popping or Snapping

Usually the sections flexing against each other as the door rounds the curve in the track. On an older door it can also mean hinges wearing at the pin holes, which lets each section move slightly before the next one takes up the load.

Worth a look rather than an emergency. A hinge that has worn oval at the pin will eventually crack.

Rattling and Vibration

Loose hardware, and it is worth ten minutes with a socket set. A garage door shakes itself loose over thousands of cycles, and the nuts on the hinges, brackets and track mounts back off gradually.

Check the bolts holding the track to the wall in particular. Those matter structurally, especially here where the door has to hold up in high wind.

A Slam at the Bottom

If the door drops the last several inches instead of settling, the springs have lost tension and are no longer carrying the weight. This is a warning shot. Springs that have weakened enough to let the door slam are near the end of their working life.

It is also a safety issue with kids or pets in the house. If your door has started landing hard, call us at (813) 461-6009 or (727) 275-2888 for Largo. Our garage door spring repair page explains what replacement involves.