Hi all, my windows were originally wooden sash windows. Sadly, they were replaced with upvc ones long before we moved in. However, they left the original architrave and what I think are sliding sash shutter boxes. No shutters unfortunately nor weights, but the wheels for the cords are there. The windowsill is hinged to open the box. Ive asked the neighbours-no one else has got these despite the houses (mostly turned into flats!) being near identical externally. My question is, would it be possible to reinstate shutters without having to take the window frame apart ?