My entryway does not get much natural night. In addition, it’s fairly narrow. I was thinking about having a round or octagonal window installed. However, the front of my house has brick facade.

I would never attempt to do it myself. I’f like to know how difficult it is and what type of contractor(s) would be needed.
Could a handyman do this job or do I need a brick mason as well as a professional window installer?

What might something like this cost?