Garage door opens on its own
This is almost always a a neighbouring remote on the same code, or a stuck wall button. Repair costs $0 to $190 and takes 20 to 45 minutes. Safe to operate: Yes.
Check this first — it may cost you nothing
Unplug the opener for a day. If it stops, the trigger is electrical — a remote or the wall button. If it still happens, something is physically releasing the trolley.
Why this happens
Doors that open unprompted are almost never a fault in the door. Older openers used a small number of fixed codes, so a neighbour's remote can trigger yours. A wall button with a stuck contact does the same thing.
A door opening on its own is nearly always radio: a stuck remote button, a neighbour's frequency, or a code issue. The learn button resets what the opener listens to.
Less likely, but possible
- A remote loose in a car or a bag with the button pressed against something
- Water in the wall button housing bridging the contacts
- A failing logic board sending spurious signals
What happens if I ignore it?
The garage is not secure. This is low cost to fix and high consequence to ignore, which makes it one of the more worthwhile calls on this list.
The repair: remote and keypad
A garage door remote that stopped working is most often a dead battery or a locked wall panel — both free to fix. Replacement remotes cost $30 to $70, and keypads $50 to $90, with programming taking under ten minutes.
Read the full remote and keypad guide →Get a tech dispatched
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