UAP Window Lock (Sash Jammer)

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Features Include:

Designed for uPVC windows and doors
Prevents the levering of the sash or door leaf
Easily secured with the twist of the sash jammer handle
Offers resistance to deter forced entry
Comes with 1mm and 2mm packers
Available in white and brown finishes


The UAP window lock (sash jammer) is a must have device for uPVC window security and even doors. It offers quick and low cost addition security to home security. The window locks (sash jammers) are available in white and brown, to help match the uPVC frame.

The window lock (sash jammer) can be fitted to uPVC windows and doors which open in or out. It has been designed to prevent the levering of the window sash or door leaf, which is a common burglary technique. Burglars can access uPVC doors and windows by using door spreaders to prise open and lever the window or door open to gain entry. With just a twist of the window lock (sash jammer) handle, it is secured over the frame, offering resistance to deter forced entry.

sash jammer packers

Each window lock (sash jammer) comes with 1mm and 2mm packers, which ensures a secure and stylish fit onto different profiles.