Window lock is a security mechanism designed to prevent unauthorised opening or closing of a window, enhancing both safety and privacy. These devices are typically constructed from robust materials such as metal or heavy-duty plastic and are installed on the window frame or sash. They operate through various mechanisms, including key-operated locks, sliding bolts, and twist handles, which engage a bolt or latch into a corresponding slot or receiver.
The design of window locks varies depending on the type of window and the required level of security. For casement windows, locks may secure the window at multiple points to resist forced entry. Sash windows often utilise a locking mechanism that prevents vertical movement. Some advanced window locks incorporate smart technology, allowing remote control and monitoring of window security status via smartphone applications.
In regions with high crime rates or severe weather conditions, window locks not only deter intruders but also ensure that windows remain closed or safely secured against strong winds. Their installation is considered a practical approach in enhancing residential and commercial building security, complying with local safety regulations and insurance requirements. The effectiveness of a window lock in preventing entry or damage is subject to its design integrity and installation quality.