DIY Doctor

French Doors - Extra Lock

Postby donnyj » Mon Jun 16, 2008 9:57 am


I have a new build property with a set of upvc french doors. The local crime prevention officer has said they are the weakest point of security and explained how they can be broken into within a matter of seconds. He recommended I fit some sash jammers.

However, I'm totally clueless as to what to do. The doors aren't the best, and I cannot find any screw/bolt that will actually hold any lock with any decent resistance as there's hardly any thickness of the plastic/metal to grip to. Any ideas would be great - even a local locksmith said there's nothing extra that can be done.

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Simply Build It

Postby allan the locksmith » Mon Jun 16, 2008 8:26 pm

Sashjammers work well, what locks have you been trying to fit ? Ive fitted stacks of sash jammers to french doors. Alternatively it may be worth upgrading the multipoint lock so it has a strip with hooks that claw into the opposite leaf.
allan the locksmith
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