Can anyone help me with regards to attaching blinds in the window recess if you have upvc double glazing all the way round?
I have quite shallow windows (2" visible recess) - they look absolutely fine but I can't work out where I should be attaching blinds. I thought puncturing the plastic window frame wasn't recommended.
I don't have any 'wall' inside the recess, only the plastic window frames. Maybe it's just trim 
So far all of my blinds are mounted outside the window recess but to me they look messy and I'm not keen on the mechanism sticking out so far from the window.
Sorry for the extremely boring query but I'm flummoxed
I know perfect fit blinds are an option but I didn't want to spend that much really. I quite fancied some roman blinds instead of my current roller blinds but not very confident about where to attach them! Any help appreciated!