Everybody describes a garage door noise differently on the phone. A clunk. A sort of grinding pop. "Like a shopping trolley, but angrier." We have heard hundreds of these descriptions and they are almost no use at all, because one person's grind is another person's squeal, and a garage is an echo chamber that makes everything sound as if it is coming from the ceiling.

The question that actually narrows it down is not what the noise sounds like. It is where in the door's travel it happens, and whether it still happens when the opener is not involved.

A noise at the same height every time is a place, not a part

A sectional door runs on rollers inside a pair of fixed tracks. That gives every noise one of two kinds of origin. Either the fault is fixed to the building, in the track or its brackets, and it sounds whenever a roller passes that spot. Or the fault travels with the door, in a roller, a hinge or a section, and it sounds wherever that part happens to be.

The first kind is repeatable to the inch. The door clunks at shoulder height going up and at shoulder height coming down, every cycle, for months. The second kind wanders, or repeats in a rhythm as each section goes round the curve at the top. Once you know which you have, you have discarded about half the door.

Three questions before anyone opens a toolbox

  • Same height every time, or all the way along? Stand to one side and watch the rollers rather than listening to the ceiling.
  • Does it happen by hand? Close the door, pull the red release cord, and lift it yourself. If the noise vanishes, the door is not the problem.
  • Going up, coming down, or both? A noise only on the way up points at something working hard. A noise only on the way down points at something letting go.

Those three answers, given on the phone, usually tell us whether the visit is worth making at all.

The same spot every cycle: the track

When the noise has an address, it is nearly always one of a short list of things fixed to the building:

  • The joint where the straight track meets the curve. If the two pieces have drifted out of line, each roller drops across a small step and makes a single clunk as it goes.
  • A loose track bracket. The bolts into the wall work loose over years of vibration, and the whole length of track shifts slightly as the door passes. It sounds structural and it usually is not.
  • A dent in the track from a car door, a bicycle pedal or a reversing bumper. The roller climbs over it every time.

These are adjustments rather than parts, for the most part. A bent section of track is the exception, and even that is a length of track rather than a door.

All the way along: something that moves with the door

If the noise follows the door, the suspects are the parts that ride on it. A roller whose bearing has seized stops rolling and starts sliding, and you can see it: the wheel stays still while the door moves past. A roller whose wheel has worn wobbles and chatters in the track. Both sound like far more than they are.

Then count. A noise that happens three or four times on the way up, once for each joint between sections as it bends over the curve, is almost always a hinge. Hinges flex at exactly that moment, and a cracked one, or one whose screws have worked loose from the panel, announces itself once per trip at the same point in the sequence. The number of clicks matches the number of joints, which is the kind of clue that makes this job occasionally satisfying.

Only under power: the opener and its rail

If the door is quiet by hand and noisy under the opener, the door is fine and the opener is talking. A chain that has gone slack slaps against the rail. A carriage that has worn rattles along it. A motor whose gear is tired makes a strained, labouring note, and one whose gear has stripped makes a light, fast whirr without moving anything.

There is also the noise that is not the opener at all but the house. A ceiling-mounted opener bolted straight to the framing passes every vibration into the joists, which is why somebody sleeping above the garage hears it better than anybody standing in it. That is a mounting question, and it is worth solving before anyone suggests a new opener to fix it.

At the very top, or the very bottom

The two ends of the travel have their own small set of noises, and they are worth separating from everything in between:

  • A thump as the door finishes opening. The up limit is set a little high and the door is being driven into its stops. It strains the opener rail more than it strains the door.
  • A creak as it starts to open. That is often the springs themselves, coils rubbing as they unwind. A light lubricant on the coils usually quietens it.
  • A slam in the last foot of closing. The springs are no longer holding the door and gravity is finishing the job. That one is a balance fault, not a noise.
  • A scrape at the floor. A bottom seal that has gone hard, dragging across the concrete as the door settles.

Only the slam is a reason to hurry, and the balance test with the opener disconnected will confirm it in half a minute.

The noises that mean stop

Most garage door noise is wear, and wear can wait a week. Three kinds cannot. A single loud bang, usually from above the door, is a spring until proven otherwise. A cable that has begun to fray makes a dry, stringy scraping at the bottom corner, and you can often see the strands. And any grinding noise that arrives with the door sitting crooked means something on one side has let go. For all three, leave the door where it is, unplug the opener (and its backup battery, if it has one) and call.

Most noise is cheap, and the location is why we can say so

A noise with an address is usually a track adjustment. A noise that counts the joints is usually a hinge. A noise that only happens under power is the opener, and often only its chain. None of those is a door, and very few are a big job.

We would rather you spent five minutes watching your own rollers before calling us. It shortens the call, it shortens the visit, and on a fair number of doors it means there is no visit at all.

Garage Door Doctor’Z · (833) 991-3899 · doctorzgaragedoor.com
CSLB C61/D28 · Lic. 1138150 · Serving the Sacramento Valley since 2018.