# Your garage door is broken. Here's what a repair actually looks like. > What you can safely check on a broken garage door yourself, and which signs mean stop using it and call a technician. Source: https://garagedoorscience.com/blog/garage-door-repair-when-to-call-professional · by maya · published 2026-09-21 · updated 2026-10-14 You pressed the button. Something went wrong. Maybe the door came down partway and stopped. Maybe it made a loud bang and now hangs crooked. Maybe the motor is running and nothing is moving at all. Before you start searching for part numbers, it helps to know two things: what might have broken, and where the line sits between what you can safely look at yourself and what a technician needs to handle. This article draws that line. ## What might have broken [Clopay's service and replacement guide](https://www.clopaydoor.com/residential/buyingguide/service-and-replacement) walks through the springs, cables, hinges, rollers and bottom weather seal. Start with the springs. [Clopay's spring guide](https://www.clopaydoor.com/residential/buyingguide/garage-door-spring-system) says both torsion and extension springs are under extreme tension. You can notice each of its signs that a spring needs replacing without touching the door or a spring. Clopay's signs: - "If your system feels unusually heavy, or if the opener is straining more than usual, the spring may have lost its tension." - "If the door looks crooked as it moves or gets stuck partway, one of the springs could be weaker or broken, throwing the whole system off balance." - "if you hear loud banging or snapping noises during operation, that’s a strong indicator a spring has let go." - "The most obvious sign is a visible break or gap in the spring itself." Stop using the door and call a technician if you see a break or gap in a spring, hear loud banging or snapping, or the door looks crooked, gets stuck partway or feels unusually heavy. If the only sign is an opener that sounds like it is straining, book a technician. A standard spring is rated for about 10,000 cycles, one cycle is one full open and close, and at four cycles a day that is about seven years ([IDC Spring, a spring manufacturer](https://idcspring.com/resources/articles/garage-door-spring-lifespan/)). [Clopay's broken-spring post](https://www.clopaydoor.com/blog/post/blog/2021/03/05/do-i-have-a-broken-garage-door-spring) says springs tend to break most often during cold weather, which makes the metal more brittle. Rollers and hinges make noise as they wear. [Clopay's noisy-door guide](https://www.clopaydoor.com/residential/buyingguide/how-to-fix-a-noisy-garage-door) says a nail-on-chalkboard noise usually comes from dried-out rollers against the tracks, though worn rollers or hinges can cause it too, and that rollers are usually the first worn parts to go. Cables matter because of what happens when they fail. [Clopay's service and replacement guide](https://www.clopaydoor.com/residential/buyingguide/service-and-replacement) says: "If the cables are frayed, they are in danger of breaking and could cause serious injury or property damage." If you see a frayed or kinked cable, stop using the door and call a technician. That one is our rule, not Clopay's. Then there are the photo-eye sensors. [Clopay's sensor guide](https://www.clopaydoor.com/residential/buyingguide/how-to-align-garage-door-sensors) says they sit on either side of the door, about 6 inches above the floor, and that if they are misaligned or blocked, the door will stop closing before it reaches the floor. It names dirt, spider webs or moisture blocking the beam, and accidental bumps, as common causes. ## What you can safely check yourself A few things are yours to check before you call anyone. None of them means touching a spring, a cable or a bracket. Start with the photo eyes. [Chamberlain says](https://support.chamberlaingroup.com/s/article/How-To-Troubleshoot-The-Safety-Reversing-Sensors-When-One-LED-Is-Off-Or-Flickering) that once nothing is blocking the sensors, the lights in both should glow steady. Move anything in the way and wipe the lenses with a cloth, as [Clopay's sensor guide](https://www.clopaydoor.com/residential/buyingguide/how-to-align-garage-door-sensors) suggests. If the lights still do not glow steady, call a technician. Do not switch the sensors off or look for a way to force the door shut. That is our rule. Then look at the hardware, with your eyes only. [Amarr's owner's manual](https://sites.myamarr.biz/content/dam/amarr/com/us/en/documents/residential/owner's-manual/owner's-manual---english/residential-owners-manual-english.pdf) (PDF page 5) says to visually scan the tracks, cables, springs, steel brackets, rollers and hinges for fraying, rupture and other signs of wear, and that a trained garage door technician must replace these items. If you see any of that, call a technician. ## The line you do not cross Springs, cables, brackets and the torsion shaft are a technician's job. We give no steps for any of them. [Wayne Dalton's care manual](https://dutchessoverheaddoors.com/wp-content/uploads/2011/10/Wayne-Dalton-Customer-Care-Manual.pdf) (page 1) warns that garage door springs, cables, brackets and other hardware attached to the springs are under extreme tension and, if handled improperly, can cause severe or fatal injury. [Clopay's spring guide](https://www.clopaydoor.com/residential/buyingguide/garage-door-spring-system) says a broken or worn-out spring can suddenly give way, causing the door to slam shut or even fall. [Clopay's service and replacement guide](https://www.clopaydoor.com/residential/buyingguide/service-and-replacement) says that if your springs are broken or improperly tensioned, do not adjust or remove them yourself, and contact a qualified garage door repair professional. The same guide says the bottom brackets on all garage doors must not be removed while the door is under tension. ## What a repair costs, roughly [HomeAdvisor's garage-door-repair page](https://www.homeadvisor.com/cost/garages/repair-a-garage-door/), updated Jun 20, 2026, says spring replacement runs $180 to $350 depending on the spring type, and labor runs $75 to $150 per hour. The same page says that because springs hold hundreds of pounds of tension, you should leave this job to a pro. [A+ Garage Doors (our affiliated installer)](https://aplusgaragedoor.com/residential/repair/) says it provides same-day residential garage door repair across Las Vegas, Henderson and nearby areas, including snapped springs and broken cables. In St. George, Utah, [Garage Door Pros (our affiliated installer)](https://garagedoorproservices.com/free-garage-door-safety-inspections-by-garage-door-pros/) says it offers free garage door safety inspections, including a balance test and a spring tension check. ## What to ask the technician When the technician finishes, ask three things: what broke, what caused it, and what else on the door is close to failing. Ask about the rollers. Ask whether the door is balanced; [Clopay's service and replacement guide](https://www.clopaydoor.com/residential/buyingguide/service-and-replacement) says not to try to fix the balance yourself, and to call a professional. ## Between visits If you lubricate the door yourself, use the type your door maker's manual names ([Wayne Dalton](https://dutchessoverheaddoors.com/wp-content/uploads/2011/10/Wayne-Dalton-Customer-Care-Manual.pdf) and [Amarr](https://sites.myamarr.biz/content/dam/amarr/com/us/en/documents/residential/owner's-manual/owner's-manual---english/residential-owners-manual-english.pdf) say non-silicone). [Wayne Dalton's manual](https://dutchessoverheaddoors.com/wp-content/uploads/2011/10/Wayne-Dalton-Customer-Care-Manual.pdf) names the parts: "hinges, steel rollers and bearings". [Clopay's lubrication guide](https://www.clopaydoor.com/residential/buyingguide/how-to-properly-lubricate-garage-door-components) says not to lubricate nylon rollers or the tracks, and to avoid WD-40. Do not lubricate the spring. That is our rule, and we leave anything touching the spring to a technician. [Our lubrication page](/blog/how-often-to-lubricate-garage-door) has the schedule. ## The plan for today Three things, in order: 1. Do the reversal test. [Chamberlain's version](https://support.chamberlaingroup.com/s/article/How-do-I-test-the-Safety-Reversal-System-1484145519301) starts with the door fully open, puts a one-inch board, or a 2x4 laid flat, on the floor in the middle of the door's path and says the door must reverse when it hits the obstruction. Chamberlain says: "The safety reversal system MUST be tested every month. After ANY adjustments are made, the safety reversal system MUST be tested." If the door does not reverse, Chamberlain says to call a trained door systems technician. Until then, stop using the opener, and do not adjust the force to make it pass. That part is our rule. 2. Look at your springs. Not with tools, with your eyes. [Clopay's broken-spring post](https://www.clopaydoor.com/blog/post/blog/2021/03/05/do-i-have-a-broken-garage-door-spring) says a broken torsion spring splits into two separate pieces, so look for a distinct gap in the coil. If you see that, do not use the door and call a technician. 3. If something is already broken, do not try to force the door open or lift it by hand, for the give-way reason in "The line you do not cross" above. That is our rule. Wait for the technician. A spring replacement planned with a technician is a scheduled expense. A spring replacement after a failure, with your car stuck inside, is an emergency. The difference is whether you chose the timing.