Fireplaces, Inserts, Stoves and Barbecues

We need a pellet stove installed. We just purchased a brand new pellet stove and there is an area in our home already partially set up (I can send pics) from the previous owners having a free standing fireplace. Their is a hole in the ceiling for a vertical exhaust pipe to be installed but there is no hole in the roof/chimney installed yet so we would need the pellet stove, verticle exhaust pipe, chimney, etc. Installed.