You can rely on the high quality of Roto handles. For more than 75 years, the name Roto has stood for contemporary design and top product quality. It is not uncommon to find windows with installed Roto technology that is older than 30 and still works perfectly.
Roto window and door handles are tested for their long-term proper operation in a large number of tests. Long-term functional tests which realistically simulate the demanding “everyday life” of window handles are carried out depending on the requirements: