Door Closer
From the Lightning Lock & Key glossary.
Definition
The hydraulic arm that closes a commercial door automatically at a controlled speed.
Why it matters
Winter is brutal on closers — cold fluid, wind, and propped-door habits. A failing closer slams or leaves doors ajar, defeating every lock behind it.
Put it to work
Locked out right now? Don’t panic — and please don’t pry anything. Call for a free phone estimate and a real arrival window.
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