Mold in the air ducts can be an easy DIY fix. First, turn OFF your HVAC system. Find an approved cleaning solution. Pour or spray the solution on the infected area. Put on protective gear and a mask - you do not want to make contact with the mold (or chemicals! or breathe it in. Scrub the area using disposable towels or brushes, and be sure to check the drip pan and evaporator coils. Vacuum the affected areas after cleaning. Bag all your rags and utensils and dispose of properly. Apply an inhibitor to the affected areas to prevent future growth. It is recommended to call a professional if you have more than 10 square feet of mold as this may be too big of a job, or there might be other/larger issues. Even if you don’t have more than 10 square feet of mold, you can still call a professional to clean it up.
On the other hand there are a lot more duct cleaning business that will appropriately clean the air system and duct and make use of industrial damaging duct cleaning vacuums with a minimum of 2,000 CFMs of vacuum power and use correct agitating tools to move the contaminants within the duct to be recorded with HEPA filters and consisted of by the duct cleaning vacuum devices.
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.
"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. "