Cold makes steel contract and old grease thicken, so a garage door can feel stiff on a freezing morning. Overhead Door says winter is when springs most often snap. If the door feels like dead weight when you lift it by hand, stop and call a technician. Never wind, unwind or adjust a spring yourself.
Quick answers
Why won't my garage door open when it is cold?
Common causes are a seal frozen to the floor, hardened grease in the rollers or a broken spring. Pull the release and lift by hand to see which one it is.
Can cold weather break a garage door spring?
Overhead Door says cold makes steel contract and grow brittle and that winter is when springs most often snap. A worn spring is the most likely to fail.
Should I lubricate my garage door before winter?
Yes, with a silicone-based lubricant on hinges and springs. Clopay says to wipe the tracks clean and not to oil them, and not to lubricate nylon rollers.
Is it safe to replace a spring myself?
No. Springs are under high tension and can cause serious injury, so leave it to a technician.
The full explanation
Why a cold morning can be hard on a door
The National Weather Service issues a freeze warning when temperatures are forecast to go below 32 degrees Fahrenheit for a long period. A garage door that has worked fine all fall may complain on the first freezing morning.
A garage door is a balance of springs, cables, rollers and hinges. When the weather turns, each of those parts reacts a little differently, and the opener takes the blame for all of it.
What cold does to the parts
Overhead Door lists three common causes of a door that will not open in the cold: a bottom seal frozen to the floor, hardened grease in the rollers, and broken springs. The page says cold makes steel contract and grow brittle, and that winter is when springs most often snap.
Old grease is the quietest culprit. Overhead Door says it thickens in freezing temperatures and can jam roller bearings. Clopay recommends silicone-based lubricant, which it says holds its consistency across hot summers and freezing winters, and advises against oil-based products.
A worn spring does not care what the weather is
Springs wear out from use, not from a single cold night. A spring that is close to the end of its life can simply pick a cold morning to give up. See how long garage door springs last for the cycle ratings behind that wear.
A torsion spring stores a lot of energy. Winding, unwinding, removing or adjusting one is a technician's job. If the door feels heavy, drops or will not stay up, stop using it.
How to tell what is going on
Overhead Door's quick test uses the red release cord. Pull it to disconnect the door from the opener, then lift the door by hand. If it lifts easily, the problem is likely the opener or the safety sensors. If it feels like dead weight, stop, because a broken spring is the likely cause.
- Door will not move, motor hums: check for ice at the threshold, then lift by hand.
- Door lifts easily by hand: look at the opener, the sensors and the force and travel settings in your manual.
- Door is heavy, or you heard a loud bang: a spring may have broken. Stop and call.
- Door moves but groans: old grease or dry rollers. Clean and lubricate the right parts.
Simple prevention before the first freeze
Wipe the tracks clean and do not oil them. Lubricate hinges and springs with silicone-based lubricant, and leave nylon rollers dry, as Clopay advises. Check the bottom seal for cracks, since cold hardens rubber. Do not raise the opener's force setting to power a heavy door open, as that hides the problem and strains the door. See why a garage door will not open for a full symptom list.
What a repair visit looks like
A technician will check the balance of the door, the springs and cables, the rollers and the seal, and test the safety reverse before leaving. We confirm the price after we see the door. See garage door spring repair and why springs and cables are dangerous.
Where we come in
Emil Garage Doors repairs garage doors, openers and gates in Southern California, and our city pages cover California, including Madera, Manteca and Merced. If your door will not lift after a cold night, call (213) 340-4232 or use the estimate form.
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