Christian McArdle wrote:
Well my parents had a HUGE bay done in quality hardwood (may have
been oak, not sure). Each window was an opening sash. They were
double glazed, draughtproofed and factory coated in acrylic. They
came with a 100 year guarantee. Cost was around 3000 quid fitted very
professionally. Your original quote seems very high unless they were
factoring in structural repairs to the bay.

Who was the supplier?