Approximately how much would it cost to split a large bedroom?

The ceiling is valuted and we would like to add a door for separate entrance.Approximately how much would it cost to split a large bedroom?
Could be as little as $1000, as much as $5000. There are way too many variables to even begin to guess. Have a local contractor, or better yet 3, give you a bid on the project after you get settled in. Hope this helps.Approximately how much would it cost to split a large bedroom?
You'll have to ask a home specialist contractor - we can't even begin to guess!