A broken spring is the number one reason a garage door stops working, and it is a job for a trained professional.
Why Springs Break
Garage door springs counterbalance the weight of the door and do most of the lifting work. They are rated for a set number of cycles, and everyday use, cold weather, and rust all shorten their life. When a torsion or extension spring snaps, the door becomes far too heavy for the opener to lift and often will not move at all.
Torsion vs. Extension Springs
Most modern doors use torsion springs mounted on a shaft above the opening, while older or lighter doors may use extension springs along the horizontal tracks. Both store significant energy under tension, which is why replacement should never be attempted with makeshift tools. A professional uses winding bars and correctly sized replacement springs matched to the door's weight and height.
Safe Professional Replacement
Because a wound torsion spring can cause serious injury if it releases suddenly, spring replacement is one of the most safety-critical garage door repairs. A technician measures the wire size, inside diameter, and length to select the correct spring, then adjusts the winding so the door is properly balanced and the opener is not overworked.
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