I got these replacement cables for my beach house garage door after the originals rusted and broke. These are twice the diameter of the OEM cables, and fit the door perfectly. The larger cables give piece of mind for both supporting the door and providing safety cables for the extension springs. Came with all the necessary hardware, and the installation was easy with the doors blocked in the up position. http://youtube.com/watch?feature=youtu.be&v=Z_eZc-kh40c
I really think that bill was way to much.I had I stalled new door springs with the help of a friend but tube door didn't. want to open .that's why I called sears so the man that came to my house spent about 15 minutes working all that be did was remove the new springs saying they were the wrong springs and put the old springs back on that's all he did .

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.
Guest 9232954 -- check out the other answers for this question, and the links below the answers for even more - seems from $125-400 range from different contributors (should be replaced in pairs for balanced lifting unless one spring is quite new), about $200-250 or 300 seems a common charge. The springs themselves generally run about $20-50 each depending on lead they have to carry.

Garage Door Repair In My Area Centennial Co

Torsion springs are located above the opening of your door with springs that slide onto a bar. Extension spring systems can be found alongside the opening of the door. It's important to know whether or not a garage door company provides service for your needs. Precision's professionally trained technicians are fully equipped to work on torsion and extension spring systems.
6.1 It is time now to unwind the old spring that is not broken. A few warnings are in order. NEVER, NEVER, NEVER touch a set screw without first inserting a properly fitting bar into the winding cone! Also, do not use box or socket wrenches for the set screws. If the cone slips, the wrench could break your hand in 10 spots before unwinding completely. It's my guess that this is the number one cause of trips to the emergency room for inexperienced homeowners fixing or replacing their springs.
The history of the garage door could date back to 450 BC when chariots were stored in gatehouses, but in the U.S. it arose around the start of the 20th century. As early as 1902, American manufacturers—including Cornell Iron Works—published catalogs featuring a "float over door." Evidence of an upward-lifting garage door can be found in a catalog in 1906.[4] http://www.youtube.com/v/Z_eZc-kh40c&feature=kp
With over 300 independently moving parts, your garage door is a deceptively complex piece of equipment. To help prevent malfunctions and break-downs, it is a good idea to occasionally perform a garage door tune-up to keep all of these parts in good working order. A regular tune-up service by a Sears professional can prevent unexpected door problems and prolong the life of your existing equipment. http://m.youtu.be/Z_eZc-kh40c