The sash jammer physically stops the intruder from being able to force open your windows and doors. Sash jammers are only as good as the fixings used to secure them, there are products available that use thinner lighter materials and poor riveting. It is imperative that you use the correct fixings and fixing method (see below).
Specified by local authorities and recommended by the Police, this sash jammer is proven to work in practice and we have tested it to 1.2Kn of force.
The three main areas of strength in a Sash Jammer or sash blocking device are the riveting of the arm, the strength and construction of the casting and the fixings themselves. Poor riveting on many Chinese sash jammers create weakness in the fixing of the arm to the base. low-grade or recycled zinc used creates porosity in the casting and makes them brittle and easy to break. The quality of the screws and fixing is critical to ensure that the sash jammer does not get ripped off the door or window under attack.
This sash jammer is quick and easy to fit, and gives the reassurance of a tested, solid, and immediate home security upgrade. The ability to key lock has also given customers the peace of mind that an intruder cannot open window or door from the inside to use as an exit route. Many customers have fitted more than one sash jammer onto openings greater than 900mm to give an even stronger solution.
We can provide them as individual items or with full fitting kits. Our tests have shown that the full kit with the correct screws, jack nuts and packers will provide maximum security.
The sash jammer is non-handed and can be fitted in minutes to any window or door, opening in or out.DOWNLOAD OUR FITTING INSTRUCTIONS HERE