Replacing a garage door panel can add significantly to the cost of a garage door repair. Panels run horizontally on sectional roll-up garage doors. They may be made of wood, vinyl, aluminum, fiberglass or steel. Garage door panels can become damaged from hail and other extreme weather, dents and dings, car accidents, and age. When deciding if you want to replace a garage door panel, it’s helpful to compare the potential repair cost to the cost of a new garage door. Panel replacement requires a pro with the proper tools as well as the new parts. With parts and labor you could be paying more than $500 for one new panel. In comparison, a new garage door may cost $800-$1,200 (on average) with installation. If there is a possibility your garage door was structurally compromised when the panel was damaged, have the pro assess whether it’s better to completely remove and replace the door, rails and framework to ensure your home’s safety. It may also be better to completely replace your door if it is severely rusted or dented; if the paint is peeling and fading; if the door model is outdated or you can’t find replacement panels; or if the panels or rails are structurally compromised.
If your garage door isn’t operating properly, the torsion springs are likely to blame. If you’re concerned about tackling this project on your own, consider hiring out the job to a professional. Otherwise, replace both the left and right springs at the same time to save yourself from having to do the job twice. Remove the old springs and measure them while they’re relaxed. Only then will you be able to order replacement parts and install the new springs. Replacing your own garage door springs takes only a little time and effort and can save you hundreds of dollars.
My wife and I began having our custom home built in the fall of 2002. We were able to subcontract many phases of the build process & we did all the painting. A highlight of the building experience was choosing precast concrete basement walls (produced in a controlled environment) and installed with great results by one of the TOH partners (Superior Walls). We got that idea based on watching a TOH episode on PBS a few years prior. It was quite the sight for our neighbors and us as the oversize flat bed truck arrived with an overhead crane and began the process of wall installation. It was kind of scary as the the wall sections were put in place. But without the TOH episode and the TOH seal of approval giving us confidence for the precast walls we would have chosen having the concrete walls poured on site. We have uncertain weather conditions here in Western NY during the late fall season. Who knows how pouring the walls on site would have gone. Thank you TOH for the precast wall episodes.
9.8 Twist the garage door shaft to tighten the cable on the drum. While twisting, vise grip the shaft as shown to keep the cable tight on the drum. The top of the vise grip should be tight against the garage header. This will keep the cable snug on the first drum while you install the cable on the other drum and position it in place. It also keeps the shaft from turning and the cables peeling off when you wind the springs. That one grip can save many hours of walking back and forth and having to level and re-level the garage door after winding the torsion springs.	

In this article, we’ll tell you the difference between a safe door and one that’s unsafe. We’ll also give you the helpful tips you’re not likely to find in the manufacturer’s instructions to correctly, and safely, install a new garage door with a torsion spring and do-it-yourself tensioning. Installing a new, double garage door yourself will save you several hundred dollars and should take eight to 12 hours if you’re fairly handy. You can do most of the new garage door installation project yourself, but you should recruit help for removing the old door.
Garage door and their openers require basic maintenance. If an emergency occurs, you need to know that your door will open and close. Especially if you have children at home, check the sensors once a month to prevent potential injury. The force setting test lets you know that the door will stop if a child or object is in the way. The photo eye sensors will detect if a child or object is moving under the door and prevent the door from closing. In addition, a complete visual inspection of the system will help to show if something looks out of place or there is obvious damage. Lubricate your springs semi-annually. Investing a few minutes to keep your garage door in tip-top shape may prevent it from getting stuck halfway open or closed.

If your garage door's spring breaks, stops working properly, or snaps, you'll lose the ability to open and close your garage door. This could happen due to a variety of issues, like normal wear and tear or from extreme temperature changes in a short amount of time. Spring replacements require a quick response from a garage door provider near you. Contact The Home Depot and a local, background-checked technician will respond within 24 hours. http://www.youtube.com/v/Z_eZc-kh40c&feature=youtu.be


One thing to consider - assuming you have 2 springs and an opener, unless the other spring is quite new, you should replace it at the same time, first because it will probably break fairly soon anyway and changing two is only about $50 more than changing one, and because the springs on both sides should be of equal stiffness - if not, then the door will be unevenly weight compensated and try to open cockeyed, increasing wear and risk of damaging the motor. https://www.youtube.com/watch?v=Z_eZc-kh40c&feature=kp
10.2 Tape your winding bars if you have not done so already, not only to assure that you are inserting the bars completely into the cones as you wind the torsion springs, but more importantly to assure that the bar does not slip out of the cone when you stretch the springs at the end. This has happened to me several times. Professionals always stretch torsion springs after winding them because the shaft floats horizontally between the flexible end bearing plates as the door operates. Although this may be as little as 1/4", the binding of the coils as the garage door closes oftentimes keeps the door from closing completely, especially when the torsion springs and bearings are dry.
In addition to the bodily risk involved, it’s simply not an easy task. There’s the possibility that you will not install it correctly. At worst, this creates the risk that the mechanism will fail at the wrong time and injure you or someone in your family. At best, this means it will malfunction, and you’ll have to call professionals to fix it. It will save time, money and potential heartache to simply call a professional to install your new door springs correctly the first time.

Nearly every garage door comes with a warranty of some kind. Many companies claim they have a lifetime warranty but don't cover everything. Garage doors have many parts: rollers, cables, springs, door panels, etc. Find out what parts the warranty covers. When you read the fine print, you may find that the warranty does not cover warping, splitting, cracking, denting, or rusting and then limits parts to one year. When shopping you want to make sure you are comparing apples to apples.
2. These springs do wear out over time – in fact, they are commonly rated with what is called a cycle life. The average standard cycle life is ten thousand cycles with each cycle being one opening and closing of the door. This means for a door that sees four cycles per day you might expect to replace your springs after somewhere close to seven years of use.
6.8 Properly tightened screws will loosen with less than a turn. Once you loosen a set screw, keep at least one bar in the cone AT ALL TIMES until the spring is fully unwound. Many cones have been over-tightened. The spring may unwind 1/4 turn and not unwind any more until one of the set screws is loosened some more. You may need to completely remove the set screws. The shaft may be distorted and the cone still may not unwind at all.
He is required to call in a service report for approval to repair, he reported the old springs and the broken door opener, obviously not well maintained (although installed in 1980 and operated until 2018) so the service company denied the claim and the service tech left with $125.00 just for showing up. The service company will no longer cover the door opener.
10.6 Here you will need to do three things at once. With your left hand, lift the bar just off the top of the door and pull it toward the center of the garage door. While lifting up and back, tap the top of the bar just under the winding cone with your other bar. Pulling the bar back toward the center of the door as you tap causes the spring cone to bind on the shaft and not slip back.
The nucleus of any garage door system is its opener. Easily overlooked, garage door openers are highly complex pieces of equipment, often containing dozens of intricate parts that work simultaneously with one another to consistently raise and lower your door. You'll know that you're getting the best from Sears as it's the home to America's #1 Garage Door Opener Brand, Craftsman*.
While it would be wonderful if door springs lasted forever, the reality is that the simple act of opening and shutting the door multiple times every day isn’t easy. It’s hard on the springs, even though they’re built to do it. Most springs will last for a while, but they won’t last forever. The regular wear and tear of endlessly opening and shutting the door breaks them down and eventually, they’ll need to be replaced.
My garage door torsion spring broke so I decided to replace it myself. Shipping was next day. I got the torsion spring rod at a local hardware store. Easy to install once I figure out how to lock down the rod from moving and loosening the door cable on the side. Instructions tells you how to do it. Great replacement spring and save $$$ doing it myself. https://m.youtube.com/watch?v=Z_eZc-kh40c
When one or both springs break, gravity takes over and you feel the full weight of the door when lifting or lowering it.  It may be possible to pull the door up by hand, although doing so will likely be very difficult. In most cases, two or more people are needed to raise the door high enough for you to drive your car out of the garage. While single garage doors can typically be lifted, double doors are nearly impossible to manipulate due to their excessive weight. 

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Grab a tape measure and press the hook between two spring coils and note the length of 20 coils. Then measure 40 coils. Convert the measurements to a decimal (4-1/2 in. to 4.5 in., or 4-1/8 to 4.125, for example). Divide the two measurements by 20 and 40 to obtain the spring's wire diameter. Here's an example: 4.50 divided by 20 = .225-in. wire diameter; 9.0 divided by 40 = .225-in. wire diameter. If the two results match, you've measured correctly.
If you need to leave the door open until you can make repairs, block the door track on both sides so the door can't move, and unplug the garage door opener (if you have one). If you want to close the door, you can try closing it with the opener, making sure there's nothing in the door's path in case something goes wrong. However, this will put some strain on the opener. Alternatively, you can have a few strong helpers hold the door while you disconnect it from the opener and carefully close the door manually—again, it will be very heavy.
"Springs get a lot of wear and tear because they handle the weight of the door," says Paul Cardone, owner of Garage Door Guru in Charlotte, North Carolina. "The type of spring you have depends on the type of door you have — the heavier the door, the more heavy duty the spring. They're full of tension and made of metal, so after so many cycles, they just snap and break." 

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Most residential garage doors have one of two types of springs: torsion or extension. Torsion springs are heavy-duty springs mounted to a metal rod that runs parallel to the door, directly above the door opening. These springs are loaded, or tensioned, with a twisting action. When the door closes, cables attached to the bottom corners of the door pull on pulleys attached to the ends of the metal rod the springs are mounted on. The pulleys turn the rod, which twists the springs and creates tension. When the door is opened, the springs unwind and help lift the door.
If the track is misaligned, but the door still moves, there are a few things you can do to attempt to remedy the issue on your own. You’ll know that it’s misaligned if you hear a rubbing noise when the garage door reaches a certain spot on the tracks each time it opens and closes. Sometimes the door may even slow down slightly when it hits this spot.
In addition to the bodily risk involved, it’s simply not an easy task. There’s the possibility that you will not install it correctly. At worst, this creates the risk that the mechanism will fail at the wrong time and injure you or someone in your family. At best, this means it will malfunction, and you’ll have to call professionals to fix it. It will save time, money and potential heartache to simply call a professional to install your new door springs correctly the first time.
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