Mold In Ducts
You’d think it’d be easy to inspect the duct work for your heating/cooling system for mold growth. Typically, if you don’t see or smell mold you probably don’t have a mold problem. But sometimes it grows in hard to see or reach mold in ducts and you’ll need to consult a professional with special inspection equipment.
Mold always grows in moisture, so the first places to look for it is in pooling water, blocked drains or condensation in or around your vents or registers. Be sure to inspect around all the room near the registers and visible ductwork, evaporator coils, and AC/furnace drip pans for signs of mold.
Your heating system should be inspected for signs of mold. As heater coils dehumidify the air, the condensation or water that remains falls into a drip pan. The mold spores love to live within condensation and excess moisture, because it helps it grow and spread faster.
It’s difficult to inspect inside the ductwork of your home. Sometimes you can see inside registers, but how are you supposed to find mold if you can’t reach in and take a deeper look? Use your nose! When mold in ducts grows, it will probably give off a strong mildew smell that spreads throughout the house.
A good test is to turn your system on and see if the smell comes through the vent. Then turn the system off to see if the smell gets weaker or goes away. If you turn it back on and the smell persists, you may have mold in your ductwork.
It’s best to walk through your home on a regular basis looking for signs of mold – especially if you live in a more humid climate. Call an HVAC professional or mold specialist if you suspect it’s in your home.