Chances exist that lint that has in fact been restricting the exhaust vent over a prolonged time period can cause overheating which in turn can cause a fire. The establish of lint that occurs over a prolonged amount of time is not merely a fire threat, it is also a clothing dryer problem that gradually steals the energy efficiency of the clothes dryer and gradually cost you significantly more money.
We highly recommend using a Florida Certified Mechanical Contractor to inspect and clean your air system. As a certified Mechanical Contractor the technicians, are properly trained to decontaminate your air system and not only can they properly clean your air system due to their extensive knowledge and experience with air systems and indoor air quality, but they can also alert you of any additional areas that might need attention to improve upon your indoor air quality such as; filtration considerations, damage, structural air flow problems, or inefficiencies of your present system. In more humid and hot climates, you will want to have your air systems inspected and service, at least every season, to assure that your air system and air ducts is clean of debris providing good indoor air quality.
We use Rotobrush aiR+ professional air duct cleaning equipment (rotary brush and vacuum) and believe very strongly that this is the best equipment to clean the air ducts in your home. Our equipment features a camera system so that if you would like, you can see what we are doing as we are doing it. The Rotobrush aiR+ is designed specifically to handle the soft, flexible ducts in homes in the South. We are able to clean air ducts by inserting the rotating brush into the duct. With the brush rotating at 450 rpm, it loosens any debris that may be stuck inside. While the brush is scrubbing the walls, the vacuum sucks up the debris, leaving your air ducts clean.
"This a very professional company that came the next day after being contacted late in the day prior. The two guys that came to the door that did the work were well dressed and very courteous. They cleaned my diver vent and it works perfectly. I have their literature and will be calling them when I m ready for duct cleaning. Nice equipment too! Thanks for the good work. Nice not to have scroungy guys showing up at the door. "