Security performance is a significant factor when it comes to selecting windows and doors. Our experience with Housing Associations, community developments and commercial projects, means that the security and safety of our windows and doors is second to none.


Our Rationel enhanced windows and doors have been tested and marked according to several national and European standards, including ’Secured by Design’.

To be certified under this initiative, the window frame or door frame and corresponding lock and hardware set has to be able to withstand a series of physical tests based on common burglary methods. Rationel has a wide range of products, which meet ’Secured by Design’ specifications.