If your garage door is going to fail, it'll probably happen on the coldest morning of the year. Chicago winters are uniquely tough on garage doors, and a little prevention saves you from getting stuck in the cold. Here's what to watch for.
What cold weather does to your garage door
- Springs become brittle: metal contracts and stiffens in the cold, and that's when overdue torsion and extension springs finally snap.
- Grease thickens: old lubricant turns to sludge, making the door drag and forcing the opener to work harder.
- Weather seals crack: the rubber bottom seal hardens, splits, and lets in cold air, snow, and water.
- The door freezes to the ground: meltwater refreezes overnight and bonds the bottom seal to the concrete.
- Metal contracts and tracks shift: freeze-thaw heaving under detached garages can pull tracks out of alignment.
A simple winter prevention checklist
- Lubricate moving parts with a garage-door-rated silicone or lithium spray (not WD-40) before the deep cold sets in.
- Inspect and replace a cracked bottom weather seal to keep cold and water out.
- Clear snow and ice from the door's path so it doesn't freeze to the ground or get forced against an obstruction.
- Listen for new grinding, popping, or straining sounds: these are early warnings of failing springs or rollers.
- Book a fall tune-up so worn parts get caught before winter, not during it.
If your door already failed in the cold
Don't force a frozen or off-balance door: you can damage the opener or injure yourself. If the door won't move, a spring has snapped, or it's stuck open in a storm, call for emergency service. We run 24/7 throughout Chicago precisely because winter doesn't keep business hours.