With its latest high-security window lock, security hardware specialist ERA claims a new benchmark in strength and durability.  Under exhaustive tests, the Fortress multi-point lock (MPL) has not only outperformed all other window locks but also proved to exceed the increased force requirements of door lock security standards. 

Putting all of its security expertise behind the design of Fortress, ERA made full use of the company’s in-house UKAS test house during the research and development process.  In testing the lock to the PAS 024:2012 standard, ERA established that the lock could withstand both the 3kn force requirement for windows and the 4.5kn force requirement for doors.  In fact, the Fortress window lock withstood almost double the force requirement for doors. The key to this outstanding performance is the fact that the lock is designed with a number of bear grip locking points which fully engage into the keeps to even out attack loads applied along any significant area of the sash. 

While the Fortress MPL offers the ultimate in security for the householder, its design also takes into account the practical needs of the fabricator and installer.  Its has minimal gearbox preparation, reduced fixing screws to minimise fabrication time, making it quick and easy to build a window using Fortress while for installers, the lock is designed for fast, straightforward and on-site set up that’s safely adjustable. 


For more information on the Fortress window MPL, contact ERA on 01922 490000 or visit For more information on Grouphomesafe companies and products, visit

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