Each level of inspection covers specific items depending on the individual appliance and venting system.
The Chimney Safety Institute of America, Website offers homeowner resources and a search by zipcode for a certified chimeny Sweep that can perform these inspections. Best of luck.
( I have not used this company nor do I know them I just googled them to show you what type of link so that you could see what to look for)
Certified Chimney Company Link: http://www.certifiedcraftsmen.com/