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user123
windows also had simplex system installed to allow bottom sash to open inward, this is also know as easy clean as it allows the home owner to maintain outer windows much easier.
Dont worry, I would be the first to kick up a fuss if this happened
Good luck with it
Did you know that in Germany the norm is for windows to open inwards? I still have trouble accepting why that isn't done here, and you can still have stuff on the window sills if you like because windows can open just just alittle, with tha axis round the bottom, so the top comes in a bit, but to clean you just clear the window sills and open them up fully, inward, and cleaning is so easy!!