We're doing some building work at the moment and need to replace our kitchen window, possibly with an aluminium frame. It measures 1800 x 1000 mm. We've had a quote from a window company that our builder deals with for over £2000. This seems a lot for one window, but we're not really sure what to expect.
From previous experience with double glazing companies they can take up a huge amount of time before they will give a quote. Does anyone know how much is reasonable and whether aluminium is way more than upvc please.