I have a window that's too big (don't ask why!) I want to make it narrower by about 6 inches - but only on one side - so I have to bring in the sash on one side six inches (and leave the other one as is.)
Any tips on this project? Especially with regard to the old window frame & making it flush with the house. i.e. can it be removed completely or does it need to be ripped?
I'll be installing a new window & trim - no advice needed there.