If one of your door springs just broke and you are looking for instructions to decide if you can change the spring or springs safely and correctly, this page should help. DO NOT OPEN AND CLOSE YOUR GARAGE DOOR. Wooden garage doors are heavy and will probably damage or ruin the opener. The tops of steel doors often bend when operated with broken springs.
At DIY Garage Door Parts, we help you identify the problem and the solution. We help you find and order the right parts and tools (torsion springs, winding bars, extension springs, rollers, garage door parts, opener/operator parts, and accessories). We ship the parts on the same day or next business day. And we guide you through the process on how to repair your broken garage door springs with video tutorials and phone support. Whether you are learn how to repair a broken garage spring, and wanting to change your worn out rollers to make your door super quiet, our video library has everything you need to show you whatever garage door fix you may need. You can bring your laptop or mobile device right to your garage and learn how to fix your broken garage door springs – correctly and safely – while you watch a how to video!
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.
Comment: Repair known broken spring & reassemble steel rope / pulley. General inspection for worn parts. Considering replacing motor & remote controllers. Also want to consider options for motor(s) to operate both door sections. Existing - Double car garage, with separate garage doors. One side with motor & remote control; the other side manual operation.
Over time, the springs in your garage door can wear down and break. While the average cost to repair garage door springs is between $100 and $200, in some cases you may need to replace them instead. Replacement can cost $20-$30 for springs plus labor which can cost up to $180. Here are some signs to watch out for when determining whether repair or replacement is the right course of action:

We live in a recently completed townhouse that was built with double-wall construction. That construction method was touted by the builder as what would keep sound from penetrating between the units. But we can hear the next door neighbors' TV and stereo, and sometimes voices and even snoring, through the wall. While sometimes it's the volume, mostly it's the bass sounds coming through the wall. They say they don't hear us, but we keep our bass turned down. They crank up the bass, and they are not going to change that. They also are not going to do anything construction-wise to help from their side. What is the best way for us to try to block the low frequency/bass sounds from penetrating the existing wall into our side?
There’s nothing more frustrating than attempting to open or close your garage door only to find that it simply won’t budge. In some cases, your garage door may even open or close halfway only to get stuck in the process. The very first thing that you should do if your garage door seems to be stuck is to check the batteries in your remote. You’d be surprised at how often this is the root of the trouble. If dead batteries were not the issue, then use the following four tips to further troubleshoot your garage door. https://www.youtube.com/watch?v=Z_eZc-kh40c&app=m
I went on Garage Door Nation website to look at the conversion chart from 1 to 2 torsion springs. For my 1 spring, size 2"/0.250ID/30.5" length, they recommended 2 of 2"/0.207ID/24" length. I got this kit from Amazon for $64 with $11 overnight shipping even though I could get free shipping through Prime over the weekend, but I couldn't wait for 3 more painful days. Installed it followed YouTube video. Worked better than my old one, a lot quieter. Check the video if you want to install one yourself. Professional installation costs hundreds of $$$:
Just like on a bike sprocket, your cables can sometimes become disengaged. Oftentimes, when a torsion spring breaks, the garage door cable will snap as a result. Sometimes, the cable will cause damage to a vehicle or wall, and if a person happens to be in the way of the cable it can cause serious harm. If you cables have snapped, you should call a professional to help you. See the video above.

10.1 It is now time to wind the new springs, but before doing so, I recommend marking the shaft just beyond the winding cone. This is a final step taken to assure that you have installed the springs on the correct sides of the center bracket. Torsion springs always grow in length when they are wound in the proper direction. If your spring does not get longer as you wind it, you are winding it the wrong direction probably because it is improperly installed. We recurrently get calls about springs coming loose from the cones at about 6 turns. If this happens, switch the springs.

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