The nucleus of any garage door system is its opener. Easily overlooked, garage door openers are highly complex pieces of equipment, often containing dozens of intricate parts that work simultaneously with one another to consistently raise and lower your door. You'll know that you're getting the best from Sears as it's the home to America's #1 Garage Door Opener Brand, Craftsman*.

Install the vertical roller tracks first by wrapping the curved lip around the rollers. The top of these tracks should be approximately 8 in. below the top of the top section. Wait to install the upper tracks until this step is complete. Check the level of the top section to make sure the tops of the vertical roller tracks are level with each other. The bottom of the roller tracks should be at least 1/8 in. off the concrete floor. After leveling and mounting these tracks, install the upper roller (horizontal) tracks.

Extension springs last 15,000 cycles. Every time the door goes up and down is one cycle. On average extension springs will last 7 to 12 years. For most people, you know you need to replace your extension springs because it snaps. Sometimes, however, when extension springs get older, they can lose their tension and the spring becomes elongated. This is rare but it does still happen. Basically, the coils are fatigued and when the door is up you can see gaps where the spring is not relaxing properly. When this happens, the spring is useless. It is best to replace the springs at this point rather than overworking the opener which will cause it to last a shorter life.


Extension spring systems should always be restrained by a safety cable that runs through the middle of the spring, tying off to a solid point at the rear and front of the horizontal door track. Extension springs represent a hazard to bystanders when a spring, pulley, or cable breaks under tension. Metal parts from extension spring systems can suddenly be launched.
So your garage door is acting up, but you aren’t sure what the problem is. Maybe the door spring is one possible culprit, but you’re not sure if that’s actually the problem or if it’s something else. In this quick list, we’ll go through the most common broken garage door spring symptoms. If your garage door is exhibiting one or a few of these symptoms, there’s a good chance it’s broken and needs replacing.

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.

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One thing to consider - assuming you have 2 springs and an opener, unless the other spring is quite new, you should replace it at the same time, first because it will probably break fairly soon anyway and changing two is only about $50 more than changing one, and because the springs on both sides should be of equal stiffness - if not, then the door will be unevenly weight compensated and try to open cockeyed, increasing wear and risk of damaging the motor.
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.
Gather the supplies and tools needed for changing the springs safely. In addition to the torsion springs you'll need a minimum of one or two 10" vise grips, an adjustable wrench, and two 1/2" X 18" winding bars. Most hardware stores sell 1/2" X 36" steel rods that can be cut in half. You'll also need a firm ladder and a rag for cleaning your hands. A ruler and a file may also be necessary; a socket wrench and sockets would shorten the time required. Finally, make sure your garage is lighted well.	

What LCD said is more or less right. Those are the ranges you'd typically find you will have to pay, but it's important to remember that the rates vary across the country. One thing I always advice others to do is to get quotes from different contractors. It might not be the biggest job, but you'd be surprised how much difference there typically is in the quoted prices. If you check out the link I put in the resource, it'll take you to a site where you can get quotes from 4 different contractors at once. Under "Select service" you simply pick "Spring Replacement".

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Replacement spring procedure took me exactly 1 hours including preparation and clean-up for double aluminum garage door. Watch the DIY video on Youtube, save $$, be careful with winding the torsion springs. Rule of thumb: 7' height door garage= 7' x 4 (each 1/4 turn) + 1 = 29 turns (1/4 turn), 8' height door garage = 8' x 4 + 1 = 33 turns (1/4 turn), and so on....
I went on Garage Door Nation website to look at the conversion chart from 1 to 2 torsion springs. For my 1 spring, size 2"/0.250ID/30.5" length, they recommended 2 of 2"/0.207ID/24" length. I got this kit from Amazon for $64 with $11 overnight shipping even though I could get free shipping through Prime over the weekend, but I couldn't wait for 3 more painful days. Installed it followed YouTube video. Worked better than my old one, a lot quieter. Check the video if you want to install one yourself. Professional installation costs hundreds of $$$:

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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.
11.2a Raise the garage door slowly. Check the door balance. If you have the correct springs the door should stay down when closed, half way when opened half way, and open when opened. If the door will drop to the floor by itself from the halfway point, add 1/4 turn of tension to each of the torsion springs. If the garage door won't stay on the floor, and if it pulls itself up when stopped halfway, close the door and remove 1/4 turn of tension from the springs.

• Extension springs: Garage door extension springs stretch to provide lifting power for the door. These springs are typically made of steel and mounted above the horizontal track of the garage door. A safety cable should run through your extension springs to prevent possible injuries or property damage. Extension springs are the most common type of garage door spring for residential use and can break after excessive usage.

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With Sears Garage Doors you can feel confident that you are getting the very best for your home and your family. All of our technicians are background checked, professional, and committed to complete customer satisfaction. The "best" is standard for all new Sears Garage Doors, Sears Garage Door Openers and Sears Garage Door Repairs. We offer some of the best warranties available in the industry, the best design advisors, the best technicians, and the best products. We may be a little biased, but we also believe we have the best customers. Go ahead, choose to be part of the best.
When it comes to garage doors, functionality and safety are equally important in the eyes of Sears Garage Door technicians. Our associates know the importance of garage door safety and the hazards that a faulty garage door can pose for your family. To confirm that your garage door and opener operate safely, our technicians perform a 20-point safety check during maintenance calls and repair jobs. This safety check verifies that any repair work performed has been done correctly and that there are no lingering safety problems with your door and mechanisms. If our technician discovers any safety concerns, he’ll advise you on the best way to proceed with correcting the problem.
Once the springs break, quite a bit of tension is put on the door cables, and they will often break next. When these cables break, they will snap and forcibly fly out like a broken rubber band. Think about how much it hurts to be snapped by a broken rubber band, and then multiply it by a hundred to account for the size and weight of the garage door cables. https://www.youtube.com/e/Z_eZc-kh40c
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