Extension Spring Replacement in Glen Ellyn, IL
Extension springs run above the horizontal tracks on either side of the door and stretch — rather than twist — to store lifting energy. They’re common on older garage doors and lighter-duty installations.
Local context for Glen Ellyn
Sustained sub-freezing stretches around Glen Ellyn are a real, well-documented driver of winter broken-spring service calls.
Extension spring systems use a spring mounted above each horizontal track that stretches as the door closes and contracts to help lift the door as it opens, working through a pulley-and-cable system that redirects the force downward to the door itself. This design was the standard for decades before torsion systems became more common, and it’s still found on many older homes and some lighter residential doors today.
Because an extension spring stores energy by stretching rather than twisting on a fixed shaft, a snapped extension spring can become a projectile if it isn’t restrained — which is exactly why safety cables (a thin cable that runs through the center of the spring, anchored at both ends) are considered essential on any extension-spring door. A door with extension springs but no visible safety cables is a real hazard and worth flagging to a technician even before a spring actually fails.
Extension Spring Replacement problems we see in Glen Ellyn
Cable and hinge cold-brittleness
Along with springs, lift cables can also become more brittle in extreme cold, increasing the chance of sudden failure alongside a spring.
Frozen door-bottom seal adding spring load
In freezing conditions, a bottom seal frozen to the driveway can force the spring to work against extra resistance when the door opens, a common cold-climate stress factor.
No visible safety cable through the spring
A missing safety cable means a snapped extension spring has nothing to restrain it, creating a real projectile hazard — this should be corrected regardless of whether the spring has failed yet.
Door drops suddenly or closes too fast
A snapped or badly weakened extension spring can no longer control the door’s descent, causing it to fall faster than normal.
Frequently asked questions
Should garage door springs be inspected before winter in Glen Ellyn?
A pre-winter inspection can catch early spring wear before sustained cold in and around Glen Ellyn turns a minor issue into a fully broken spring and a stuck door.
What is a safety cable and why does my extension spring need one?
A safety cable runs through the center of an extension spring and anchors at both ends, so that if the spring snaps under tension, the cable keeps the broken pieces from flying loose. Any extension-spring door without visible safety cables should have them added regardless of whether the spring has failed.
How do I know if my garage door has torsion or extension springs?
Torsion springs are mounted on a horizontal shaft directly above the closed door. Extension springs run above the horizontal tracks on either side of the door, roughly parallel to the ceiling. If you see long springs running along the tracks rather than a single shaft above the door, it’s an extension system.