Anytime you have a new appliance like a fireplace...get an expert opinion of the condition of the overall fireplace and flue assembly.
Get a certified chimney sweep the first time to give it the once over and let you see how to inspect the flue and anything else you need to find out.
A cracked or altered chimney can cause all kinds of different problems from back draft to no draft depending on your smoke shelf and height of stack. A cracked or missing flue liner can cause a fire into the home s structure....the list goes on.
One thing to remember is no two chimneys are alike...they don't come from a factory and all masons may have a tendency to experiment with libations before work is done.
Get the expert...then clean it yourself after that.
Everyone should have their chimneys looked at yearly if you burn wood......you never know what animal has decided to live in your chimney.....quack, quack...