It is essential that you learn about the fireplace cleaning professional that you call in. Find out about his training and his experience in the field. Since there are no formal requirements for these services, you want to make sure they have the best possible education to work on your home.
To keep yourself from becoming a victim of a fire cleaning professional that does not know what he or she is doing, ask questions. Find out what they will do, what they will use as well as their experience and training. It is very inexpensive to start up a business like this with no skills required.