Three configurations of cable window restrictor by Jackloc Company

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Window safety is of universal importance. All windows above ground floor level are a potential accident risk. The Jackloc has been designed to prevent accidents and reduce the risk of window falls. Jacklocs are universal in their application.


They can be installed into any type of window, regardless of style and material. All Jacklocs however, are not made equal. They are available in a range of different configurations.

The Jackloc cable window restrictor is available in three configurations.


Jackloc Mk2 Key-locking Window Restrictor 

The most popular of their window restrictors. Available as standard footplate, two-screw covered footplate, and four-screw covered footplate, its standard cable length is 200mm and it is compatible with almost any window. The key-locking function means that opening can be controlled by a responsible adult and the window can be fully opened for ventilation and cleaning access when necessary.

Jackloc Push-and-Turn Window Restrictor 

Available with the same footplate options as the Mk2, the push and turn release function provides easy access without the potential inconvenience of lost keys. The simple operation provides immediate access for an adult but is difficult for a child to open. It is an excellent option in case of an emergency exit being needed and has been designed for the global market.



Jackloc Swivel/Stud Window Restrictor 

This Jackloc design provides a permanent restriction on a window’s opening capacity. It is popular in hotels, schools, and hospitals where safety is paramount and permanent window restriction is the best option.

Jackloc Folding Window Restrictor


The Jackloc Folding Window Restrictor is an alternative to the classic Jackloc cable restrictors. It can be installed onto side and top-hung windows and is a super-secure option for window safety. It features a key-operated lock and comes with all the required installation hardware.

All Jacklocs are available in a range of colours to suit your building’s style. They have been rigorously tested to industry safety specifications and are used in buildings across the globe. The Jackloc recently won the Queen’s Award for Enterprise.



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