Garage Door Spring Replacement in Oconomowoc, WI

There are two main spring systems on residential doors. Torsion springs mount on a steel shaft above the door opening. As the door closes, cables wound on drums at each end of the shaft twist the springs and store energy. When the door opens, the springs unwind and turn the shaft, lifting the door through the cables. A well-balanced torsion system makes even a heavy door feel light by hand.

Extension springs run along the horizontal tracks on each side of the door, usually above the upper track. They stretch as the door closes and pull back as it opens, working through a set of pulleys and cables. Extension springs are common on older homes and some single-car doors. They should always have a safety cable threaded through the center, so that if a spring breaks it cannot whip across the garage.

Both systems are under heavy tension whenever the door is closed. That stored energy is why spring work is dangerous without the right tools, training and procedure. Please do not attempt to adjust, loosen, or remove springs yourself.

Every spring is rated for a certain number of cycles. One cycle is the door going up and coming back down. Standard springs are built for a set cycle life, and higher-cycle springs use different wire and sizing to last longer. Once a spring reaches the end of its life, the steel fatigues and eventually cracks, usually with a loud bang.

How fast you reach that point depends on how you use the garage. A household that uses the garage door as the main entrance, with several drivers coming and going, might put many cycles on the door each day. A lake cottage that is opened only on summer weekends uses far fewer. Kids grabbing bikes, trips to the trash bins, and letting the dog out all count.

When we replace springs, we ask how your family uses the door. If it is the main way in and out of the house, a higher-cycle spring can be a better value over time. If the door sees light use, a standard spring sized correctly will serve well. We explain the options and let you choose.

Many doors have two springs, either two torsion springs on one shaft or one extension spring on each side. When one breaks, the other is usually the same age and has gone through the same number of cycles. It is often close behind. Replacing only the broken spring means a second service call in the near future and a door that may be slightly out of balance in the meantime.

Replacing both springs at once keeps the lifting force even across the door, which protects cables, drums and the opener. It also lets us size both springs properly for the door's current weight. That matters because doors gain weight over time. Added insulation, a new window section, paint, or moisture in an older wood door all change what the springs need to carry.

Some doors use a single torsion spring. On those, we check whether a single spring is still the right setup for the door's weight or whether converting to two springs would give smoother, more reliable lifting. We recommend it only when it makes sense, and we quote the price before work starts.