If you've installed a replacement door or two around your home, it seems pretty simple -- all it takes is tightening a couple of screws and you're done. Installing t­he largest door in your house, however, is not quite so simple. Garage door in­stallation, whether manual or automatic, can be difficult and dangerous. Manual garage door installation is much easier than automatic garage door installation, but the one you choose generally depends on what kind of door you have.
Thread the cables and tighten the drums. Run the lift cable between the roller and the doorjamb. Slip the lift cable stop through the cable slot on the drum. Then, attach locking pliers to the torsion tube to secure it in place. Spin the drum to wind the cable into the grooves, then tighten the set screws. Repeat on the other side, leaving the locking pliers in place.[11]
Examine the garge door rollers, hinges, tracks, and other hardware for signs of damage that might cause the door to hang up. Lubricate the tracks and hardware with silicone spray or oil. Raise the door slowly, watching it as it lifts. See if it catches on a warped panel or support beam or if an obstruction in the path of the photo eye causes it to stop or reverse. Any part that protrudes into the path of the garage door can cause it to stop.
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.
The winding and unwinding is done at a metal fitting, called a _winding cone_, attached to the outside end of the spring. You stick a winding bar into one of the four holes in the cone and use the bar as a lever to turn the cone. Once you've completed a quarter turn, insert the other bar into a different hole in the cone and let the bar lever against the closed garage door to hold the spring tension. This allows you to move the original bar to repeat the process, alternating the bars with each quarter-turn. It takes about 30 quarter-turns to fully tension a standard torsion spring.
9.16 If you cannot get the stationary cones to finger-tighten against the center bracket, we recommend installing washers between the winding cone that houses the bearing and the spring bracket. This is a common problem with torsion springs on older Windsor garage doors because their steel bearings are often wider and they extend beyond the stationary cone. Raynor garage doors also have wider bearings that fit properly in their 2 1/4" stationary cones, but washers may need to be installed if their bearings are installed in 1 3/4" or 2" stationary cones, or if some of their older bearings are installed in their newer cones that are installed on older brackets.

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If the door only goes up six inches and stops, or moves very slowly when using your remote, you could have a broken spring as well. Some customers will notice that the top section of their door is bent or that the door falls very quickly when lowering. Your door may be “crooked” or jerky when going up and down, and both of these signs indicate your torsion spring is in poor condition and very likely to break in the near future. Any time you hear a loud “popping” noise while operating, you should inspect your torsion spring immediately for signs of damage.

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Install the stiffening strut on top of the top section of steel doors with the section lying flat. Then install the opener bracket that replaces the center bracket between the top two sections. While you’re working on the sections, protect them from scratches by putting carpet scraps on top of your sawhorses. Now, slide the rollers into the roller brackets.
10.4 Raise the second bar 90 degrees and insert the first bar. This is "three." Continue winding. If the spring shortens in length, unwind the spring and switch sides - the springs are on backward. Otherwise, continue winding until you reach a count of "30." This is 7 1/2 turns, which is normal for most 7' doors. Longer life springs are wound the same number of turns. Newer steel doors with only one strut on top often need only 7 1/4 turns. On 8' doors count to 34. Each time you insert a bar into the winding cone, listen for the click to let you know the bar is in all the way. Not inserting the bar all the way could cause the cone to explode.

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Carter door: Garage doors in Florida come with extra bracing on the back and are wind-loaded to protect against hurricanes. The average with is 350 lbs. but some can weigh as much as 800 lbs. It can cost up to $1,000 dollars to replace a steel two-car garage door and if it’s made of wood it can cost you up to $5,000 dollars. Some customized doors can be as much as 20 – 30k.
The average lifespan of torsion springs is determined by its cycle count. Garage Door Medics provides springs with an average of 25,000 cycles and we can provide custom size springs for any door. The industry standard is 10,000 cycles. When a garage door is used more frequently, the springs may not last as long. If you begin to see signs of wear, it’s time to give Garage Door Medics a call!

With garage door installation costs, these numbers also include the actual purchase of the new door and other hardware, including the tracks, adhesives, connectors and fasteners. Keep in mind that if these numbers seem extreme, garage door replacement and upgrades can yield, on average, one of the highest returns on investments for homeowners — with an expected 85 percent.

10.5 If the spring comes loose from the cone at about 6 turns, you are probably winding the spring backward because the springs are on the wrong sides. Switch the springs. Otherwise, after winding the torsion springs, you will need to stretch the springs and secure the winding cone. First, mark the shaft 1/4" beyond the winding cone with tape or with a file. We stretch the springs because the shaft floats horizontally between the flexible end bearing plates as the garage door operates. Although this may be as little as 1/4" the binding of the coils as the door closes often keeps the door from closing completely, especially when the springs and bearings are dry and need lubrication.

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.
Most garage doors from the past 15-20 years have a photo eye which detects if a person or object is blocking the door from lowering all the way. The photo eye will be about 4-6 inches off of the ground for most doors, with an eye that is about the size of a pea. It shoots a laser across the length of the garage that, if interrupted, will cut off the signal used to lower and raise the door.
One of the best ways to get a real sense of how you door is functioning is to lift it manually. If all you’re doing is pressing the remote and noticing that your door isn’t moving, there are a wide range of possible causes. However, depending on the way your door lifts by hand, you can isolate the problem and take the best approach to getting it fixed.
Torsion springs do not last forever, regardless of what some companies claim. “Lifetime” springs do not exist – all springs have a lifespan. Most builders typically install the lowest costing door available and with that generally comes lower cycle springs. A torsion spring’s life is determined by the number of cycles the spring is rated to last. Whenever the door goes up and down is what is referred to as a “cycle.” The springs that builders install can last as little as 7,500 cycles which means the average homeowner could get 3-5 years of life.
Unfortunately, if the metal contraction happens quickly — for example, after a rapid freeze — the contraction may actually cause your door track to bend. This is a much more serious problem, and may require repairs further down the road. However, if the bending in your track is minor, your door will still function properly, even if it does make a little more noise. https://m.youtube.com/watch?feature=player_embedded&v=Z_eZc-kh40c

Would have appreciated the technician to have explained in better detail about the quality of the first doors we received in our home. The garage doors that were installed recently were an upgrade. I would have selected the better quality of doors with the first installation if it had been explained in better detail and time of decision with the first doors. But, I really love the doors that were recently installed! Explained much better with the new doors. Time was well spent on my decision making and the technician this time was very helpful and knowledgeable. Thank You! Cathy Walsh

Whenever a spring breaks, the door will not go up. Attempting to lift a door with a broken spring can be extremely dangerous. Attempting to replace the springs yourself is even more dangerous. You should never attempt to fix a broken spring yourself – only experienced, trained professionals should ever touch torsion springs. Also replacing a spring requires expertise to know exactly which spring to replace it with. The correct springs are determined based off the weight of the door. There are hundreds of combinations of springs but only one is correct for your door. It is important to have the correct springs to prevent an array of problems in the future. With the wrong springs, your opener will break much quicker and your door is more likely to come off tracks. It is alarming how many installers use the wrong size springs. Knowing which springs to use can only be determined by experience.
A standard double garage door is 7 ft. high by 16 ft. wide. Standard single doors are 7 ft. high by 8 or 9 ft. wide. Because the doors are so large, few home centers and only some garage door stores keep many doors in stock, so expect to order one instead of buying it off the shelf. Garage doors are available in wood, fiberglass and steel. Steel doors, like ours, are light, maintenance-free, affordable, readily available, and have an insulating value as high as R-19.