1. I need operators, there are none now, only retainers, which will allow the windows to be operated from outside the screens a s there is some concern that much operating of the screens will destroy them and they are deemed difficult to replace. While money is not a great problem, it is a consideration as the house is the rectory for a church.
2. I'd also like to find corresponding locks to hold the windows when closed, for heat only as they are on the third floor.
Where is a good source for this hardware. The operators need to go through 3 1/2-4 inch sill.
Thanks for any help