If you've gone out on a freezing morning and your garage door won't budge, you're not alone — and you're not necessarily looking at a broken door. The most common cause this time of year is simple: the rubber seal along the bottom of the door has frozen to a thin layer of ice on the slab overnight, especially after rain, melted snow, or a wash that didn't fully dry before temperatures dropped.
Why it happens
Garage floors hold moisture longer than you'd think, and even a small amount of water under the bottom seal will freeze solid once the temperature drops below 32°F overnight. The seal bonds to the ice, and from the inside it can feel exactly like the door is stuck or the opener has failed.
What NOT to do
- Don't keep hitting the opener button. Repeated attempts put strain on the drive gear, the trolley, and the opener's drive belt or chain — parts that aren't built to force through resistance. - Don't pry at the bottom seal with a tool. It's easy to tear the seal or gouge the slab, and neither fixes the ice underneath. - Don't yank the door up by hand while it's frozen to the floor. If it suddenly releases, it can come up unevenly and put uneven tension on the cables and springs.
What to try first
1. Switch the opener to manual mode (pull the red release cord) so you're not fighting the motor while you work on the ice itself. 2. Warm the ice line, not the whole door. A hair dryer or a bucket of warm (not boiling) water run carefully along the seal-to-floor line will usually loosen the bond within a few minutes. 3. Try lifting gently by hand once the ice has softened, using both hands at the bottom corners, not the center. 4. Clear and dry the slab where the door sits once it's open, so it doesn't refreeze the next cold night.
When it's not just ice
If the door releases from the floor but still won't move — or it moves partway and stops, or you hear a bang or pop from overhead before it stuck — that's a different problem. Cold weather is also when torsion springs are most likely to fail, because the metal is less flexible than in warmer months. If the door feels heavy, uneven, or won't move at all even after the ice is clear, stop and call rather than keep working it by hand.
American Best Garage Doors services Philadelphia, the PA suburbs (Bucks, Montgomery, Delaware, and Chester counties), and South Jersey. If your door is frozen, stuck, or came off track this winter, call 215-383-0399 — hours are Monday–Saturday 8 AM–9 PM and Sunday 9 AM–7 PM.