Garage Door Tools & Technical Support

Tools for fixing garage doors and torsion springs

One of the most important tools for garage door repair is a pair of winding bars. Winding bars traditionally come in three lengths: 18", 24" and 36". The 18" winding bars, such as the standard residential winding bar picture on the right (WB-18), are suitable for residential and light commercial doors. The longer winding bars become necessary when working on heavier commercial and industrial overhead doors as the springs hold more tension. Having a longer moment arm makes winding and unwinding stronger springs much easier.

Another important characteristic of winding bars is the diameter. Failure to use a tight-fitting winding bar in a winding cone may result in the destruction of the cone, personal injury, or even death. Many winding bars come with two diameters by machining the ends to different lengths, as shown in winding bar in the middle (WB-24a). This is helpful when servicing multiple doors as the cones may differ between each system.

We also offer some of our winding bars with a hexagonal grip along the middle such as the 36" bar with 5/8" and 1/2" ends shown on the left (WB-36h). This can speed up the spring-changing process as the winding bars are less likely to fall to the floor.

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YES, WE'RE OPEN FOR BUSINESS! DDM is considered a life-sustaining company because we are an internet retail company that provides essential products. Due to the Coronavirus and the Delta varation, however, we are continuing our local order pickup policy at our West Chicago location. To pick up an order you will need to order first. The quickest way is to order in advance through our online shopping cart. There you can select the local pickup option. Or, you can call 630-293-1337 for assistance, to confirm availability of parts, and to place your order. Once ordered, your parts will be available for pickup in the lobby of our north side front entrance. Longer items will be picked up on the south side loading dock. Please honor the six foot social distancing rule. Thank you for your patience and understanding as we all navigate this challenge together. More information is available on our blog titled DDM Adjusts to the COVID-19 Coronavirus. In the same article you will also find documentation and an answer to the question: "Is a garage door repair company a life sustaining business?"


PLEASE NOTE: COVID has interrupted global supply distribution chains resulting in unprecedented delays on incoming door industry products. The result is limited availability of many products, three month delays on incoming shipments, and an inflationary rate of over 50% just this year on many of our products.

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