I own a 2 story townhouse and my dryer is located on the 2nd floor in a closet. It is vented between the 2 floors to the outside back wall of the house. Bird nests have clogged up the vent. I was told I may need to have the dryer vent relined or rerouted. What type of professional do I hire to do this work? I was told that the work may be a problem due to the venting between the 2 floors. Please help as I have not had the use of my dryer due to this problem for a number of years.Thanks.