Hi
Not sure if this is the right group to post to. (I'm new to this)
We are currently having our old aluminium windows replaced with upvc.
The fitter put in the first of the two bay windows yesterday but I
noticed the gap between the top of the frame and the bottom of the
openning looked very wide (25mm) I spoke to the company and they said
it was fine and why were filling it with foam. I understand there
needs to be a gap to allow for expansion but this seems excesive.
They keep insisting that there is nothing wrong with the frame but I
am not convinced. Does this gap seem unreasonable to anyone? Should
I insist they put one in of a better fit? This is costing us a lot of
money and I want it right, but I don't know enough about it?

Thanks for any replies.