We couldn't have been happier with the technician. He was prompt, efficient, didn't complain about moving items to do the installation, cleaned up after himself, was polite and thorough. He seemed very sure of exactly what to do next. As a favor, he took a couple of minutes to remove a light globe to replace a bulb since he had the ladder in the garage because we can't get to it. We were very impressed with him. We would definitely request him again.
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.
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. https://www.youtube.com/attribution_link?a=Z_eZc-kh40c&u=%2Fwatch%3Fv%3DXXXXXX%26feature%3Dshare
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.
9.9 Go to the other side of the garage door and insert the end of the cable into the drum. Rotate the drum until the cable is tight. Slide the drum against the bearing and push the shaft to the right. The marks should line up. If they don't, figure out why and correct the problem. It could be a stuck cable, the garage floor may have shifted, or the vertical angle that helps support the bearing plate may have loosened and shifted. Many garage doors have been installed with a gap between a drum and a bearing plate. The cable drums should always be flush against the race of the bearings.