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. http://www.youtube.com/watch?feature=youtu.be&v=Z_eZc-kh40c
Once the lock switch has been activated, you can only control the garage door via the wall control unit. You may have forgotten to de-activate it after coming home from an extended period away, which is why the garage door seems to be stuck whenever you attempt to use your remote. Check to see if this is the case and simply unlock your remotes by pressing the lock switch again.
Warning! If the door is partially open and crooked, don’t touch it. Period. It’s a sign your door is off balance, and it’s usually caused by a problematic cable. It’s likely the door is still under tension from the spring, and one false move could send a 150-pound door crashing down, causing damage or injury, says Vincent Johnson, owner of Garage Door Doctor of Cypress, Texas. https://www.youtube.com/v/Z_eZc-kh40c&feature=youtube_gdata
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.
Product was received in two days and was as advertised. Installing these myself saved around $150 but it took around 2-3 hours. I would imagine everyone's experience is going to be different. These springs appear to be heavier duty than the ones they replaced. I couldn't use the same slots for tension as the old ones and it was trial and error in adjusting the length of my pull cable until the door closed as it should. I need to replace the springs on my other garage door and would think that will take less than an hour based on what I learned from the first install.
It you have a tilt-up door, you are looking at a $150 – $200 repair or replacement. If it’s a roll-up door it’s going to cost you more. Roll-up door spring repair or replacement is usually around $200 – $250 for a 2 car door. If the brackets need to be disassembled to remove the springs due to the shaft not sliding sideways enough it will cost you an additional $50 – $100.
While a sudden issue is usually easily repaired, a consistent issue that has gone unaddressed for months or years will likely require a total replacement. The problem is that garage doors have a number of heavy, powerful moving parts. If the door is working as it is designed, it can open and close hundreds and hundreds of times without issues. However, if there is even a small issue in the lifting mechanism that repeatedly influences the movement of the door, you will soon find that the damage caused over those hundreds of lifts can’t be fixed.
If a roll-up door, assuming you have not put in cabinets or anything that prohibits sliding the shaft sideways about 2-3 feet out of the spring to change it, then about $200-250 should do it for a 2-car garage door. If he has to disassemble the brackets to remove the springs because the shaft cannot slide sideways enough to get the springs on/off, then probably another $50-100.
Align the upper roller tracks by carefully lifting the door halfway. Lock it in place with two locking pliers, and install the supporting brackets on the back of the rails using 1-1/4 in. perforated angle iron (available at home centers and hardware stores). Install 1-1/2 x 1/4 in. stop bolts, with the threads to the inside of the track, at the end of each upper track.
Luckily, there is a bit of science to questions of garage door repair and replacement. That’s why we’ve put together this guide on when to replace a garage door. We’ll prepare you to compare repair vs replacement garage door costs. We’ll discuss the ways in which repairs are the most affordable option while also exploring those moments when replacement will in the end provide you with more value added.

Every modern garage door is built with a sensor due to a mandate passed by the government back in the 1990’s that required garage door opener manufacturers to install safety devices. To meet this mandate, most garage doors have a sensor installed on each side of the doorway. They are often referred to as photo eyes since their main function is to maintain visual contact with one another. If that visual contact is broken by an obstruction, then the garage door stops in its tracks. This is meant to prevent the garage door from closing on a vehicle – or even worse, a person.
11.2c If the springs you installed are too weak, and you wind the springs the correct number of turns, the door will be heavy at the floor, and it will not stay open half way, but it will stay open if raised completely. If tension is added to the torsion springs to lighten the garage door and to get it stay open half way, the door will be harder to close; openers often damage the new steel garage doors when they are too hard to close.	

First, check to see if the transmitter on the wall inside your garage still opens your garage door when pressed. If it does, then the transmitter in your car likely just needs a simple battery replacement. If you have more than one car transmitter for your garage door, then your other transmitters will likely need new batteries soon as well, since they were probably installed around the same time.

There are many steps to replacing torsion springs, but overall it's a simple, straightforward process. If you're inclined to attempt it, find a good online video tutorial (preferably done by a garage door pro) that walks you through the entire process, including how to buy the right size of springs. You can also buy new springs and any related parts online, along with the most important items that you need: the two solid-metal winding rods that you use to wind and unwind the torsion springs.

It is very important that the replacement springs are calibrated for the weight of your door. Using the wrong size garage door springs will caused the to not function properly and could also cause the opener to break much quicker. Replacing extension springs can be very dangerous and if done wrong can harm someone using the garage door. Make sure you call the Garage Door Doctor to ensure your garage is repaired properly!
If you have a 1-spring system, you can choose to upgrade to a 2-spring system. The 2-spring system will make your springs last longer since it balances the weight on two instead of just one spring. It is not required but recommended. To convert to 2-springs, you will first need to find the measurements of your one spring and then use the form on our website to convert to a 2-spring system or just contact us. We will take care of you 24/7 via our online support.
1. Garage door springs do almost all of the work of lifting your door regardless of the door being manually or automatically operated. The spring makes it possible for anyone to lift a product that might weigh one hundred pounds on the low end and many hundreds of pounds on the high end. Not only can anyone lift it – most can do it with one hand! In other words, the garage door spring does a lot of work.

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It is precisely on those coldest days of the year when you most need and appreciate the convenience of opening and closing your garage door quickly. Sadly, that's exactly the kind of day when moisture and cold can conspire to make this difficult. Garage doors can and do freeze to the garage floor. Sometimes it is just a minor icy connection between the two that can be broken when you hit the opener button. If the door refuses to budge on the first attempt, though, resist the urge to keep banging on the automatic opener button. This is likely to cause a more serious problem with the garage door opener—including, but not limited to, stripped gears, broken springs, and a burned-out motor on the opener.
If your photo eyes are clean and the door still isn’t closing, the next thing you’ll need to do is check the alignment of the eyes. The eyes should be pointing in exactly the same direction and at the same angle. If they’re off, they won’t register that the other one is there, and it’ll assume something is in its path, causing the door to stay in the open position. When checking the alignment, measure the height of each photo eye from the ground. Use a level to make sure they’re pointing directly across at each other at the same angle. A laser level will make this part a little easier, but if you don’t have one, a regular level will work as well.
Inspect the area around your garage door to see if something is blocking the photo eye sensors. Then look at the tracks to see if there is any buildup on the inside. You’ll need to get a step ladder to look at the tracks on the top part of your garage, as it will be difficult to see from ground level. It may also not be a bad idea to proactively wipe down your garage door tracks periodically to prevent this type of buildup from occurring. Running a damp rag along each track should be enough to remove anything that’s lingering on the tracks.
This technician was very competent and performed the services in an outstanding manner. He also suggested additional items needing work on our garage door opener so that it performs much better. It also appears I ordered the wrong door openers, but he was able to input the correct code so that we can use them. We were very satisfied with all of his services.

Install the center bearing and the right spring, then secure the cones. Slide the torsion bar to the left then add the center bearing. Slide the right spring onto the bar and press the bearing into the stationary cone. Connect both of the stationary cones to the center bracket with the nuts and bolts you removed previously. Remove the locking pliers or clamp from the center bracket.[10]


Because garage doors are large, heavy, and mildly complicated, most people who buy them take advantage of these services. But, if you’re pretty adept at DIY tasks, you can save some money and enjoy the satisfaction of doing the job of installing a sectional garage door yourself. (Sectional garage doors travel up and down on rollers that ride along tracks at each side of the garage doorway.)
A garage door with aging springs puts an enormous load on a garage door opener, so another sign of failing springs is when you hear the electric door opener begin to strain as it attempts to lift the door. At this point, it is time to consider replacing the springs. Aging door springs can also break suddenly, a situation that can cause the door to slam shut violently. If you happen to be present when a spring breaks, you will hear a very loud sound like a gunshot, because the break usually occurs when the spring is fully loaded—stretched or twisted to its full tension. When one spring breaks, the door will suddenly feel very heavy when you try to open it by hand, and an automatic garage door opener may no longer be able to lift the door at all.

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Springs are one of the primary components in all garage door systems. Torsion springs are usually mounted horizontally over the door opening. As the door closes, cables add tension to the springs and as the door opens that tension is released. The opening of the door causes the springs to unwind in conjunction with the weight coming off the door. This achieves a natural buoyancy. However, as the door moves up and down over time and the cycle count rises, the steel in the torsion springs will grow weak and will no longer be able to create energy or lift your garage door.
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.
Both types of springs are _loaded_, or under tension, when the door is closed. This gives them stored energy to help lift the door as it's being opened. When the door is all the way up, the springs are relaxed, or relatively so—they still may be under some tension. The mechanical difference between extension and torsion springs is that extension springs are loaded by stretching, or elongating, while torsion springs are loaded by twisting, creating torque.

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If your garage door is equipped with only one torsion spring, it will be much harder to get your door open. You will need to get 2-3 people to help lift the door up because the full weight can be anywhere from 150 to 300 pounds. We don’t recommend lifting the door when the spring break's due to the danger of it falling on someone. If you absolutely must get your garage door open, raw strength is what you need. When you get the door in the up position, use vise-grips or a c-clamp on the track below the bottom roller to hold the door in the up position.

If the door closes but then immediately pops open again, you'll need to check the limit settings, which help the mechanism determine how far to move the door in order to close it properly. If the settings are off, the door will hit the ground before the opener believes it should. It will assume that it has hit an obstacle and will automatically backtrack to avoid damage. Check the owner's manual or the buttons on the motor to adjust the limit settings. It may take some trial and error to get the setting just right.
Using your drill, add tension to the torsion spring. This system uses a single spring for a double door, but many manufacturers use two springs for a double door. The painted line on the spring acts as a gauge for the number of turns you put on the spring. To keep the bar from turning while you’re adding tension, attach a locking pliers to the bar on both ends of the spring. Apply lubricant for garage doors to the spring.
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