Upgrade your home security with XFORT sash jammers. Designed for use on uPVC windows and doors, these fittings add a simple but highly effective barrier against forced entry. The sash jammer secures the frame in place, preventing the sash from being levered open and providing extra protection for vulnerable access points around your property. Whether you need a window jammer, a sash window lock, or a reliable door jammer, we have you covered.