Garage Door Questions, Answered Directly
This page gives short, direct answers to the eight garage door questions people ask most often. Each answer stands on its own, so you can read only the one that matches your problem. If your situation needs hands-on help, describe the problem and submit a service request through the form on our contact page, and a technician can assess it in person.
What are the signs of a broken garage door spring?
A broken torsion spring usually announces itself with a single loud bang from the garage, often when no one is using the door. After that, the door lifts only a few inches or not at all, and the opener strains, hums, or gives up. Look at the spring mounted on the shaft above the closed door: a healthy torsion spring is one continuous, tight coil, while a broken one shows a visible gap of about two inches where the coil snapped apart. The door will also feel far heavier than normal if you try to lift it by hand, and the lift cables may hang slack or sit off their drums. Do not keep running the opener against a broken spring, and never attempt spring repair yourself — torsion springs are under extreme tension and can cause serious injury.
Why will my garage door not close?
The most common reason a garage door refuses to close is the photo-eye sensors: two small lenses mounted about six inches off the floor on each side of the opening. If the lenses are dirty, blocked, knocked out of alignment, or wired loosely, the opener assumes something is in the doorway and reverses the door. Openers made since 1993 are required to include this safety system, and many flash their lights when the sensors are the cause. Wipe both lenses with a soft cloth, clear anything crossing the beam, and check that each sensor's indicator light glows steadily rather than blinking. If the sensors check out and the door still reverses, the cause may be a bent track, a travel-limit setting, or a binding roller that a technician should assess.
How do I tell whether the problem is the opener or the door?
Use the emergency release test. With the door fully closed, pull the red release cord hanging from the opener rail, then lift the door by hand. A properly balanced door lifts smoothly and will stay in place at about waist height. If the door feels very heavy, drags, or slams shut, the fault is in the door system — springs, cables, rollers, or tracks — and replacing the opener will not fix it. If the door glides easily by hand but will not run from the wall button or remote, the opener, its trolley carriage, or its electronics are the likely problem. Never pull the release cord while the door is stuck open; without the opener holding it, the door can fall.
How long do garage door springs last?
Standard torsion springs are rated for roughly 10,000 cycles, where one cycle is one complete open and close. A household that uses the door four times a day burns through about 1,500 cycles a year, which puts a standard spring's working life near seven years. Heavier daily use shortens that, and exact life varies with spring size, door weight, and climate. High-cycle springs rated for 20,000 cycles or more are available for doors that get frequent use. On a two-spring door, both springs are usually replaced at the same time when one breaks, because the surviving spring has worn the same number of cycles and tends to fail soon after.
Is a garage door that came off its track dangerous?
Yes. A sectional garage door often weighs well over a hundred pounds, and the tracks and rollers are what keep that weight moving in a controlled path. When rollers leave the track, the door is no longer supported evenly, so it can shift, jam at an angle, or fall without warning. The lift cables can also slip off their drums while still connected to a tensioned spring, which makes the whole assembly unpredictable. Stop using the door at once, keep people, pets, and vehicles away from and out from under it, and do not try to force rollers back into the track or run the opener one more time. Off-track doors involve tensioned parts and should only be reset by a trained technician.
What do different garage door noises mean?
Each sound points to a different part of the system.
- Grinding: worn rollers. Steel rollers are naturally louder than nylon ones, and rollers with failing bearings grind as they drag through the track.
- Squealing or screeching: metal parts running dry — hinges, rollers, and spring coils that need a garage door lubricant.
- Rattling: loose hardware, such as track bolts and hinge screws that have vibrated loose over time.
- Popping or snapping: torsion spring coils binding for lack of lubrication, or worn end bearings on the spring shaft.
- One loud bang: frequently a spring breaking — check for the two-inch gap described above before using the door again.
- Slapping: a loose chain on a chain-drive opener hitting the rail.
How often should a garage door be maintained?
Twice a year, lubricate the rollers, hinges, spring coils, and end bearings with a silicone- or lithium-based garage door lubricant — not a general-purpose degreaser, which strips lubrication instead of adding it. Once a month, test the two safety systems: wave an object through the photo-eye beam while the door closes to confirm it reverses, and lay a board flat on the floor under the door to confirm the door reverses on contact. Check the bottom weather seal for cracks and brittleness each season. Once a year, a professional tune-up can cover the things you should not adjust yourself: spring balance, cable wear, and track alignment.
What counts as a garage door emergency?
A garage door emergency is any failure that makes the door unsafe to use or leaves the building unsecured. The clearest examples: a snapped torsion or extension spring, a broken or frayed lift cable, a door that has come off its track, a door stuck open so the garage cannot be secured, a door that will not close on a vehicle trapped inside or outside, and a door that has been struck by a car. What these share is either a component under dangerous tension or a door that can no longer hold its own weight in a controlled way. If your situation matches one of these, stop operating the door and submit a service request through our contact form with a short description of what happened.
What to do next
If one of these answers matched your problem, the related service pages on this site go deeper into causes, hardware, and what a repair visit involves. When you are ready for help, submit a service request through the form on the contact page. Describe the symptom in plain terms — what you heard, what the door does, and whether it is stuck open or closed — and a technician can assess the door and its hardware. Repair needs vary by door, spring type, and opener model, so an in-person look is the honest way to know what yours requires.
Frequently Asked Questions
How can I confirm my garage door spring is broken?
Look at the spring mounted above the closed door. A torsion spring is one continuous coil; a break shows as a visible gap of roughly two inches in the coil. Supporting signs include a loud bang heard earlier, a door that lifts only a few inches, slack lift cables, and a door that feels extremely heavy by hand. Do not run the opener repeatedly against a broken spring, and never adjust or replace a spring yourself — it is under extreme tension.
What is the first thing to check when a garage door will not close?
Check the photo-eye sensors — the two small lenses about six inches off the floor on each side of the opening. Dirt, a blocked beam, or a bumped bracket makes the opener reverse the door as if something were in the way. Wipe both lenses, clear the beam path, and confirm each indicator light glows steadily. Openers built since 1993 are required to have this system, and many flash their lights when the sensors are the fault.
How do I test whether my opener or my door is the problem?
With the door fully closed, pull the red emergency release cord and lift the door by hand. A balanced door lifts smoothly and holds at waist height. A door that feels very heavy or slams down has a spring, cable, roller, or track problem. A door that moves freely by hand but ignores the wall button points to the opener, its trolley carriage, or its electronics. Never pull the release while the door is stuck open.
How many years does a garage door spring last?
Standard torsion springs are rated near 10,000 open-and-close cycles. At four uses a day — about 1,500 cycles a year — that works out to roughly seven years, though door weight, spring size, and climate all shift the number. High-cycle springs rated for 20,000 cycles or more suit busy doors. On two-spring doors, both springs are usually replaced together, since the unbroken one has the same wear and tends to fail soon after.
Can I push an off-track garage door back into place myself?
No. When rollers leave the track, the door's full weight — often well over a hundred pounds — is no longer evenly supported, and the lift cables can slip off their drums while still tied to a tensioned spring. The door can shift or fall without warning. Stop using it, keep people and vehicles clear, and do not run the opener again. Resetting an off-track door safely requires releasing tension, which is technician work.
Why is my garage door so noisy?
Match the sound to the part. Grinding points to worn rollers, and steel rollers run louder than nylon. Squealing means dry hinges, rollers, or spring coils that need garage door lubricant. Rattling is loose track bolts or hinge screws. Popping can be dry spring coils binding or worn end bearings. A single loud bang is often a spring breaking. Slapping usually means a loose chain on a chain-drive opener hitting its rail.
How often should I lubricate and test my garage door?
Lubricate rollers, hinges, spring coils, and end bearings about every six months with a silicone- or lithium-based garage door lubricant, not a degreaser spray. Monthly, test both safety systems: break the photo-eye beam while the door closes to confirm it reverses, and place a board flat under the door to confirm it reverses on contact. Leave spring balance, cable wear, and track alignment to an annual professional tune-up.
Which garage door problems count as emergencies?
Treat these as emergencies: a snapped spring, a broken or frayed lift cable, a door off its track, a door stuck open so the garage cannot be secured, and a door struck by a vehicle. Each involves either a component under dangerous tension or a door that can no longer hold its own weight predictably. Stop using the door and submit a service request through the contact form describing what happened.