Thanks folks. Skip booked. Extra hands booked. Just not looking forward to the dust.
The room we're doing it in is at the front of the house but the window only has a top opening, the large glass pane which makes up most of the window can't be opened. Do you think it would be worth popping to a local glass shop to get them to remove the pane (and replace next week) so we can just pass rubble buckets straight down to the street (and exit ourselves there, rather than traipsing through the house)?
If so, how much should I expect to pay for that?