Garage doors are the largest moving systems in most homes. Use the checks below only when the area is stable and safe. Do not touch springs, cables, drums, or a crooked door.
First: stop operating the door
A broken spring removes the counterbalance that makes a heavy garage door manageable. Do not repeatedly press the opener, pull the emergency release while the door is raised, or attempt to lift the door alone. Keep children and pets away from the opening.
Common signs of a broken spring
A loud bang from the garage, a visible gap in a torsion spring, loose cables, an opener that strains, or a door that rises only a few inches can point to spring failure. Extension springs may appear stretched, separated, or out of position.
Why professional replacement matters
Garage door springs store substantial mechanical energy. Correct replacement requires the right spring size, winding method, tools, and balance testing. An incorrectly sized or tensioned spring can shorten opener life and make the door unsafe.
Information to share when you call
Tell the technician whether the door is open or closed, whether a vehicle is trapped, how many springs are installed, and what happened immediately before the failure. A clear photo taken from a safe distance may help identify the system.