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    How do I know if my door is secure enough?


    Is there a measurement system for the level of security offered by a door?

    Asked by Greg on 15th Jul 2021
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    K J Richards

    Most insurance companies will insist that a door has (at least) a 5 lever deadlock. A front door to a property will usually have a 5 lever deadlock, a cylinder night latch, a security chain, two bolts and a viewer. Some doors, like upvc and composite doors have a multipoint locking system that is very secure."

    Answered on 20th Jul 2021 - Member since Jun 2019 - report

    "Mortice lock

    These are the most common type for external timber doors. They are embedded (or ‘morticed’) into the door, rather than surface-mounted or clamped. The strike plate is fitted to the frame and a key is always needed to operate it.

    They can have anything from two to seven levers, increasing in security with every lever that is added. The higher the number of levers, the more difficult it is for intruders to pick, therefore making it harder to force open, enhancing security levels. It is recommended to have a minimum of a five-lever mortice lock and even better still to have one that is compliant to British Standard BS3621, as this will provide a longer bolt throw, anti-drill plates and a security curtain inside. Look out for the trademark BS kitemark on the faceplate to determine if your current locks are compliant with the standard.

    To take this further, there are commonly two types of mortice locks:

    Sashlocks work by using a lock, latch and a set of handles so that you can open and close the door without it locking behind you. You can lock the door by turning the key, but the built-in latch means it is also possible for the door to be held closed on the latch while remaining unlocked. This is useful for a number of reasons, not least of which it reduces the chances of a lock out.

    A deadlock can only be operated with a key and works with a single bolt locking mechanism meaning that when the door shuts behind you it is not possible to open it from the outside without a key. This is essentially a sashlock, without the latch, and may act as a good deterrent for thieves.
    Multi-point locking system

    These are most commonly used for composite and uPVC doors. A multi-point locking system has a minimum of three locking points, where pins, hook bolts or rollers sit at the top and bottom of the door followed by a latch in the middle. All three points lock simultaneously with the turn of a key as the multi-point locking system bolts the door into the frame, giving a high level of security."

    Answered on 20th Jul 2021 - Member since Mar 2019 - report

    "Have a professional come and look at the door ! And what the intentions of the door is for ! To how far you go with roughing the door and Frame"

    Answered on 20th Jul 2021 - Member since Jan 2020 - report

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