Definition of Rough-In. What is included?
Generally, rough-in means 'sizing' everything up for the install of the 'new stuff' (to keep it simple.)
Finishing means hanging the drywall, priming/painting, and anything else that needs to be done after that to 'finish' the job.
If you need to, ask the Pro what his particular Finishing is. You never know.
My best to ya and hope this helps.
Jay J -Moderator