By watching the chalk mark while winding, you can count the number of turns applied, and confirm the number later. My standard-size door (7 foot height) with 4-inch drums has a nominal wind of 7-1/4 or 7-1/2 turns, which leaves 1/4 or 1/2 turn at the top-of-travel to keep the lift cables under tension. After 7 turns on the first spring, I clamped down the set-screws, weighed the door again, and found a lift of about 100 pounds in reduced weight. As expected, this wasn't quite half of the full 238 pounds, nor would it leave any torsion at the top-of-travel, so I added an 8th turn. The door now weighed 122 pounds on one spring, which was ideal. After winding the other spring, the door lifted easily, with only a few pounds apparent weight. This confirmed that the spring choice was properly matched to the door design. I engaged the electric opener trolley, and adjusted the opener forces down to a safer level suitable for the new, improved balance. The door was now ready for return to service.

Spring stretch: When the door is at the top of travel, the spring(s) are hardly wound, but are stretched, so on a single-spring installation this stretch tends to pull the shaft towards the non-spring side. With two springs, the stretch tends to cancel out. This top-of-travel spring stretch, being about 7 or 8 turns of the wire, will thus amount to upwards of about 2 inches on a typical size spring of 0.253 wire. This spreads out to a gap of about 0.020" per coil on a typical 100-coil spring, so the stretch is not very visible.

The one excuse that makes the most sense is, "if we sell springs to a do-it-yourselfer, and he gets hurt installing it, we could get sued." I can sympathize with someone who wants to sell only to the trade and not bother with the risk of a spurious product liability lawsuit from an ignorant member of the public. But the lawn-mower dealers have figured out how to manage that kind of exposure, so this is not an absolute barrier to retailing garage door parts to the public. It doesn't explain why torsion springs at retail are virtually non-existent.


Sterling Door is the only company we trust with our garage door. When our old door acted up, springs, track, etc., they were always timely and got the job done. Then when we made the jump to a new door, they were excellent. They helped us choose the right door, not just pushing the most expensive model. And installation was well done. I recommend Sterling Door for all of your garage door needs.
Follow the manufacturer’s instructions to assemble the opener and mount the rail to the header bracket above the door. Then set the opener on a ladder where you’re going to install it. The ladder (usually an 8-footer) holds the opener in position while you measure for your lengths of angle iron. If necessary, put boards under the opener to raise it.

Repair Sagging Garage Doors – As doors and homes age, they can shift and move and sometimes this results in a garage door that needs to be realigned or reinforced. We will send a technician to your home to adjust the doors and to inspect the entire opening to make sure the door isn’t damaged. Once we understand the problem, we will fix the needed parts and make any adjustments to the door.
The German-made, .75-horsepower (equivalent) Direct Drive 1042V004 garage door opener doesn't use a belt drive or a chain drive. Instead, the mobile motor crawls along a stationary chain, making it exceptionally quiet. This garage door opener is also feature-packed, though the wireless entry keypad is an extra-cost accessory. Reliability is excellent, and installation is at least a little easier than some other garage door openers. This opener is also sold under the Sommer brand and with different model numbers, but all are similar.
Our knowledgeable, dependable and friendly team of professionals can work closely with you to select, design and install a quality garage door that best serves your daily needs, enhances the architecture of your home and fits your budget. The extensively trained and experienced technicians at Kitsap Garage Door can help you with any of your garage door service needs, large or small, and are ready to repair any garage door make or model.
Once the shaft, springs, and center bearing plate come down and lay on the floor, the old springs should be easy to get off and new ones slid on and assembled. Two bolts hold the center cones to the center bearing plate. The bearing on the center plate can be oiled while it is exposed from having the springs off. At this point it is a relief to be working with inert parts while standing on the floor rather than energized parts while up on the ladder. You might think it would save a little time to replace the spring with the shaft left up on the wall, but I found it was easier and safer to lower the works down to the garage floor first.
With hundreds of moving parts that are all required to work together, it's no surprise that garage doors may need occasional repair and maintenance. Garage door repair services are also required in emergency situations, like when the garage door won't operate and the car is trapped inside or you've accidentally backed into the door when it was closed. Whether it's a specific repair of your garage door opener, a broken spring that needs to be replaced, or a bent or rusted track, The Home Depot's local, licensed service providers can get the job done quickly and efficiently.
Garage door openers are always a nice convenience, but become most appreciated when the weather turns nasty. They are also a near necessity if the task of opening and closing a garage door is too challenging, due to physical limitations. Most are relatively inexpensive and highly reliable, although unless you are very handy, you should probably budget for professional installation.

When buying an opener, choose a 1/3 hp or 1/2 hp opener for a single garage door (1/3 hp can be hard to find at some home centers). Go with 1/2 hp for a double door and 3/4 hp for a door that has a wood or faux wood overlay (they can be heavy!). Openers have a set opening speed, so installing an opener with a higher horsepower won’t open your door any faster.


Garage doors provide one of the major entryways into your home. Therefore, it is essential to ensure that they are secure and in good working order. If you are having problems with your current door, then you need to have a professional determine if it can be repaired or if it will need to be replaced. Here are some of the most common factors that will affect the cost of a garage door repair.
We provide Garage door service, repair, sales and estimates for the entire Detroit, Michigan Metropolitan area with service to Wayne, Oakland, Washtenaw, Monroe, Livingston and Macomb Counties. This includes: Ann Arbor, Birmingham, Bloomfield Hills, Canton, clawson, Clinton Township, Commerce Township, Dearborn, Dearborn Heights, eastpointe, Farmington Hills, ferndale, Franklin, Fraser, Garden City, Grosse Ile, Livonia, Macomb Township, Milford, Northville, Novi, Plymouth, Rochester, Romulus, Roseville, Royal Oak, Shelby Township, South Lyon, Southfield, Southgate, Sterling Heights, Taylor, Trenton, Troy, Utica, Warren, Wayne, West Bloomfield, Westland, Ypsilanti, MI.
“This is not a simple thing to install,” cautioned one of our testers. “It's likely that you’ll make a few trips to the hardware store even if you’re very handy and have a relatively complete set of tools.” That said, our reviewers thought that this opener’s instructions themselves were very clear and that once setup was complete, the device “worked without lots of fiddling.” Another plus was its added security features, like keyless entry and smartphone app integration. Lastly, our testers did wish it had a built-in camera to allow surveillance in the garage at all times.
There are plenty of garage door accessories to make your garage safer. Sears carries replacement safety sensors that will detect anything in the way and keep it from shutting. If you have a small garage or it's full of gardening equipment, a laser parking assistant will help you find the perfect spot every time. You can set it so it hits the perfect spot on your dash as you pull in. You'll also be able to find new tracks to replace worn opener tracks.
The typical electric garage door opener consists of a power unit that contains the electric motor. The power unit attaches to a track. A trolley connected to an arm that attaches to the top of the garage door slides back and forth on the track, thus opening and closing the garage door. The trolley is pulled along the track by a chain, belt, or screw that turns when the motor is operated. A quick-release mechanism is attached to the trolley to allow the garage door to be disconnected from the opener for manual operation during a power failure or in case of emergency. Limit switches on the power unit control the distance the garage door opens and closes once the motor receives a signal from the remote control or wall push button to operate the door.[3]
Since their invention in the 1920s, electric garage door openers have come a long way. Garage door openers work by using a trolley connected to an arm that attaches to the top of the garage door and slides back and forth on a track, which opens and closes the garage door. When operating the motor, a chain or belt turns and pulls the trolley along the track. A good garage door opener will have a horsepower of 1/2 HP, 3/4 HP, or 1-1/4 HP. Garage door openers have the ability to open and close a limited number of times in power outage emergencies. Security is something else to consider when purchasing an opener. It's helpful to have sensors that will stop the operation of the garage door when a person, vehicle, or other obstacle is in the way.
Now 13 pounds of force must be respected when backed by many hundreds of foot-pounds of stored energy, waiting to be released. Holding this torque is equivalent to stalling a 3 horsepower DC motor. But holding and turning these handles does not require extraordinary human strength. Note that this maximum tangential force depends only on the weight of the door, and the radius of the drums, and is divided by the number of springs (some designs have only one longer spring, as mine did originally, instead of two shorter ones). Higher or lower lift distances imply more or less turns to wind the spring (and thus a different spring geometry), but not more force on each turn.

Garage doors can cost $200 for a single door and up to $4,000 for two doors or more. Keep in mind that better materials will cost more. This price also includes purchase of new tracks, adhesives, connectors and fasteners. You could install the door yourself but the weight of some garage doors are extremely heavy, so make sure you have help if you are trying DIY garage door replacement. Contact a professional or do research online to find out the average weight of different types of garage doors.

When you're done watching this video you'll know how to determine whether the company you hired to replace your garage door spring installed the right size spring on your door. You'll also learn the consequences to your garage door opener if the wrong size spring is used. If you are having a problem with your garage door spring, the 2:30 minutes you spend watching this video is time will spent.


Prices, like the garage doors themselves, run the gamut. You can pay as little as $400 for a door that you install yourself, or several thousand dollars for a high-end premium door that includes all the bells and whistles, including installation. A mid-range, 16-by-7-foot door will typically cost from $750 to $1,500, installed. Premium insulated steel doors run from $750 to $3,500. According to Remodeling Magazine’s 2017 Cost vs. Value report, the average national cost of a garage door replacement is $3,304.
Having a mismatched pair makes it difficult to specify the correct matched-pair replacements. To obtain replacement springs for a mismatched pair, you can either specify the same odd pair, try to calculate the equivalent matched pair sizes, or (this is the best method:) measure an accurate door weight and calculate the right spring size(s) "from scratch". The spring seller should be able to do the calculations from your accurate measurements of weight, height, and drum size; or you can attempt the calculations yourself using my engineering formulas below.
Garage door openers are always a nice convenience, but become most appreciated when the weather turns nasty. They are also a near necessity if the task of opening and closing a garage door is too challenging, due to physical limitations. Most are relatively inexpensive and highly reliable, although unless you are very handy, you should probably budget for professional installation.
Replace your old garage door and give your home a new look. Make it a custom garage door down to the tiny details. It's easy, fun and you can put together as many as you like before you get the perfect style for your home. Try our online customized garage door selector tool, and you'll have the garage door of your dreams on its way to you in no time. Standard, yet dependable wood-look steel doors, grooved-panel steel doors and classic raised panel steel doors are some of your options. Boost your style with barn garage doors for a unique, old-time yet modern look. Choose from hundreds of garage styles including traditional, carriage house and contemporary. If you spend time in the garage, let some light in, get a garage door with windows. The garage doesn't have to be just for cars, use the space however you need it - a play room for the kids, a workshop for hobbies, a studio. Let fresh air in but keep the bugs out with a garage door screen.
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