Can you find what you need in the big home improvement stores? Can they show you how to fix a broken garage spring? Do they know what tools and replacement parts you need? Do they know what safety precautions you need to take? If you have any questions during the project, can you call them for help? Have they ever actually repaired a broken garage door spring themselves?
Your decision on whether to try and replace a broken spring may depend on what type of springs you have. Garage door springs come in two main types: extension and torsion. Identifying which type you have is easy. If your door system has a long, skinny spring running parallel to each horizontal door track, then you have extension springs. If your door has one or more beefy springs on a metal rod parallel to, and directly above, the door opening, then you have torsion springs. Both of these springs are found on standard sectional garage doors. If you happen to have an old one-piece, swing-up door with vertical springs at both sides, you also have a variety of extension springs, sometimes called side springs.
If your door feels heavy, it is likely that your springs have started to wear down and are no longer capable of bearing the weight that they once did. Now, don’t worry, just because a spring is starting to lose its strength doesn’t mean it will snap at any moment. However, simultaneously, a weak spring isn’t any safer to try and repair on your own. http://www.youtube.com/embed/Z_eZc-kh40c
CAUTION! Replacing garage door torsion springs is dangerous because the springs are under tension. If you do not use the right tools and follow safe procedures, you could lose hands, limbs or even your life. You could also damage property. We want your business, but not at the expense of your well being. Doing the job right is your responsibility. If you have any doubts about your ability to safely change your springs, we recommend you hire a professional to repair your garage door. Safety First! Then work.
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.