Lock types supplied and fitted by SDS Portsmouth

With a five-lever mortice sashlock or deadlock, the locking mechanism is morticed into a slot in the door and the strike plate is fitted to the door frame.  Every 5 lever has a latch operated by a handle on both sides of the door and a deadbolt key operated from both sides.  A five-lever mortice deadlock conforming to BS3621 is locked and unlocked by a key from either side, and has additional security features incorporated into its design.
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SDS Same Day Security (Portsmouth)

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