Some years ago, we had a commercial window installer supply new aluminium windows including insect screens to replace the external windows. They did a great job. Now some years later, we need to remove the insect screens for the cleaners to clean the windows on the inside and outside. However we are having an issue figuring out how to remove the insect screens.
These are awning windows with a winder. Photos attached.
is someone able to advise how to get the screens off the windows without damaging anything in the process?
Thank you.


