Mold and mildew is not easily detected if it is not in a visible area in your home.  One sign of mold and mildew problems in your HVAC ductwork are changes of indoor allergies.  You may begin to sneeze, have nasal congestion, skin irritation and other health issues.  These can become severe if mold and mildew are not properly removed.  Indoor air quality (IAQ) is often low when you begin to notice a foul and musty odor coming from your heating and cooling system’s return air ductwork.  If you suspect any mold and mildew in your ventilation system, contact us at 205-444-4444 for an free inspection and removal proposal.