What I did was to self tap into the uPVC/aluminium window frame. The
blind's brackets normally have holes to allow you to screw vertically into
the top of the window fram or horizontally into teh window frame.
KS

"J" wrote in message
...
Hi,

I was all set to hang some wooden slatted blinds in the bedroom the other
day. I measured up to hang them from the top of the window recess (if that
makes sense) as we already have curtains up and wanted the blinds for
privacy. When I started drilling the holes, I drilled about 10mm into the
plaster and hit what must be a metal strip. We live in a six year old
house with uPVC glazing.

What's this metal strip for, how thick is it and is it ok to drill through
it in order to fit the blinds?

Thanks in advance.

J