When Chicago temperatures start dropping in October, garage doors that limped along all summer start failing. Cold metal is less forgiving, grease thickens, and the first snow and ice show up in the alley.
Here are the problems we see most from October through December, what causes each one, and which repairs are worth doing before the deep freeze.
What cold weather does to your garage door
- ✓Springs become less forgiving: cold steel is stiffer, and springs that are already near the end of their cycle life often snap on the first deep freeze.
- ✓Grease thickens: old lubricant turns to sludge, so the door drags and the opener works harder.
- ✓Weather seals harden and crack: the rubber bottom seal splits and lets in cold air, snow, and water.
- ✓The door can freeze to the ground: meltwater refreezes overnight and bonds the bottom seal to the concrete.
- ✓Tracks can shift: freeze and thaw cycles under detached garages can pull tracks out of alignment.
Broken springs
Springs do the heavy lifting on every opening, and cold steel is more brittle. A spring that is near the end of its cycle life often gives out on the first truly cold morning. If your door will not lift, or you heard a loud bang from the garage, a broken spring is the likely cause.
Do not try to lift the door by hand or replace a torsion spring yourself. The stored tension is dangerous. See our guide to spring replacement costs, then call for a repair.
Door will not close or reverses (photo-eye sensors)
Safety sensors sit a few inches off the floor, right where snow, slush, and condensation collect. Frost on the lens, a bumped bracket, or leaves and debris can stop the door from closing. Wipe both lenses, check that the indicator lights are solid, and confirm the sensors still point at each other.
Slow, noisy, or struggling openers
Thickened lubricant makes the door harder to move, so the opener works harder. Openers that are 15 years old or more often fail in cold weather. A little lubricant on rollers and hinges helps, but a straining motor is a sign to have it checked before it quits.
A fall checklist that prevents winter breakdowns
- ✓Clear leaves and debris from the tracks and sensors.
- ✓Lubricate rollers, hinges, and springs with a garage-door lubricant (not heavy grease).
- ✓Check the bottom weather seal for cracks so snow and cold stay out.
- ✓Test the auto-reverse by placing a small object under the door as it closes.
- ✓Replace remote and keypad batteries, since cold drains them faster.
- ✓Have worn springs and frayed cables replaced before they fail.
When to call a pro
If the door is off its track, a spring has snapped, a cable is frayed, or the door will not move at all, stop using it and call. We handle same-day repairs across Chicago and offer priority emergency service when you are stuck.