I got a quote today for a three-panel bay window, approx 1.7m high by 2.6m wide (or 3.2m sill to sill wide) of $3500 plus approx $500 installation. This is a fixed central window and casements either side.
It is double-glazed uPVC with 5mm glass and 20mm spacing.
This seems awfully expensive to me. Does anyone have any experience in double glaze costs ? Does this seem about right ?