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How an Extension System Works

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How an Extension System Works

Extension spring systems use springs that stretch and retract to close and open your garage door. As the garage door closes, the extension springs which run along the horizontal track on each side of the door expand and are under great tension. Operating cables attached to the bottom of the door on either said offer counter balance strength. Safety cables help contain the springs in the event they break. As the door goes back up, the springs retract using that strength to pull the door to the open position.

Extension spring system inside of garage

Extension spring systems come with their own pros and cons. One advantage of this system is that each side of a spring system works independently to compensate for uneven ground. On the other hand, they require more parts, such as the pulleys and operating cables, and usually need more maintenance.

Tech installing extension spring

Older homes typically use extension systems because they have limited headroom in the garage, which is needed for a torsion system. Headroom is the available overhead space over the door height, and varies for each garage. However, any home, regardless of age, requires a minimum amount of headroom to  transition to a torsion spring system.

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Huntsville Area

256-270-2310

256-270-2310
Madison Area

256-617-7066

256-617-7066
Decatur Area

256-280-4449

256-280-4449
Athens Area

256-206-3939

256-206-3939
Owens Cross Roads Area

256-206-3955

256-206-3955
Guntersville & Arab Area

256-677-9988

256-677-9988
Albertville Area

256-206-3955

256-206-3955
Hartselle Area

256-677-9988

256-677-9988
Moulton Area

256-206-3939

256-206-3939
Precision Door Service
Office: 256-513-6459
430 Plummer Road
Huntsville, AL 35806

License

Contractors License
#353206