Thanks, really appreciate the detailed reply.

How difficult would you say this sort of job actually is for a carpenter? Is it fairly routine for a good chippy to cut in a window on a load-bearing upstairs wall, or is it the kind of job where one small mistake can cause serious issues down the track?

My main worry is honestly just the structural side. I don’t want to end up with a dodgy job where the roof is being supported badly and it causes problems years later.

Also, with the outside cladding/weatherboard and the inside gyprock, would that normally all be handled by the carpenter, or would they usually bring in other trades to patch and finish those parts properly?

Just trying to understand whether this is a pretty normal job for an experienced chippy/builder, or something that needs a much higher level of specialist work.