Unlike torsion springs, replacing extension springs has long been given the "green light" for DIYers, primarily because you can complete the job without having to deal with spring tension. The general process is simple and safe: open the door to relieve the spring tension (and secure it open with C-clamps in the tracks); disconnect the spring from the track bracket and the spring pulley, and disconnect the safety cable from one end; install the new spring, reinstall the pulley, and reconnect the safety cable, and you're done.
11.2b If the springs you installed are too strong, and if you wind the springs the correct number of turns, the door will not stay down nor half way. The garage door will be hard to close. DO NOT REMOVE MORE THAN HALF A TURN OF SPRING TENSION TO CORRECT THE PROBLEM. Here's why. If you remove 3/4 of a turn to get the door to stay closed, and then if you open the door, it will get heavier as you open the door, and once open, the cables will come off the drums. This could create as much as a day's extra work. It could also cause door damage and/or result in serious injury. Do not use the door! Get different springs! https://www.youtube.com/watch?feature=youtube.be&v=Z_eZc-kh40c
11.2b If the springs you installed are too strong, and if you wind the springs the correct number of turns, the door will not stay down nor half way. The garage door will be hard to close. DO NOT REMOVE MORE THAN HALF A TURN OF SPRING TENSION TO CORRECT THE PROBLEM. Here's why. If you remove 3/4 of a turn to get the door to stay closed, and then if you open the door, it will get heavier as you open the door, and once open, the cables will come off the drums. This could create as much as a day's extra work. It could also cause door damage and/or result in serious injury. Do not use the door! Get different springs! https://www.youtube.com/watch?feature=youtube.be&v=Z_eZc-kh40c

Although you should let professionals perform any tasks that require adjusting the tension on the springs, there are a few repairs you can do and maintenance tasks that extend the life of the door. One such repair is to tighten the nuts and bolts that hold the garage door and its track together. This also provides an opportunity to check the door and its parts for signs of wear and damage. You can also lubricate all the moving parts in the door, including the pulleys, bearings and springs. This shields the parts from dirt and helps reduce noise when the door opens and closes. Another job you can complete is installing an automatic garage door opener.
10.13 Slowly pull down on the winding bar until the garage door rises 3" and the roller hits the vise grip on the track. The door will usually drop back down and raise the bar. If it doesn't, lift the end of the bar until the door closes. If the door comes up by itself when you hold the bar lightly, the springs are either over wound or they are too strong. You may need to remove 1/4 to 1/2 turns from the springs. If the door comes up on its own, you either have to many turns on the springs or you have the wrong springs. This can be very dangerous. We recommend getting professional help. Removing the winding bar could cause the garage door to knock you off the ladder.
Hiring a professional to handle garage door spring repair and replacement tends to be a much easier and safer option for homeowners. Removing or repairing garage springs can be a dangerous job, but professionals have the experience and equipment to do it safely and efficiently. Unless your springs only need a minor repair, such as lubrication or fixing a minor balance issue, be sure to call in a local garage door pro to do the job.
There’s another reason new doors are superior to old ones: energy efficiency. Keep in mind, garage doors are large, and when they open, they let a lot of outside air into your home. While you may have significant insulation separating your garage from the rest of your home, eventually that temperature differential will start to influence your energy bills.

Garage Door Repair Images Centennial Colorado 80016


If you have decided to replace your springs, if you are sure your door had the correct springs, and if you are ready to buy new ones, we recommend that you measure your spring or springs following the instructions in Step 4 below. Measuring springs can be difficult; most individuals, even garage door technicians, sometimes have difficulty measuring torsion springs. Ordering incorrect springs wastes time and money. 
×