5 HVAC Problems Caused By Duct Issues

5 HVAC Problems Caused By Duct Issues

Is your home not as cool as you wish it was? Have you noticed that your indoor air isn’t as “fresh” as usual? Maybe it’s taken on a musty smell? Have you heard banging or whistling sounds? If you answered yes to any of these questions, your ducts may the cause of your HVAC problems. Here are a few of the most common problems associated with bad ducts.

Poor Airflow

If your ducts are dirty or clogged, your rooms won’t be as cool as you’d like. If your ducts are leaking, some of the cooled air won’t make it where you need it to go in your home.

If you examine your registers when you’re trying to pinpoint the origin of your HVAC airflow problems, you might notice a lack of air blowing from the vents. You may notice the air is stuffier because not enough air is circulating.

Hot and Cold Spots

If you notice substantial temperature differences when walking through your home, it may be because of leaky ducts.


Is your HVAC smelly? The smells may not be coming from your HVAC unit but from the ductwork. When moisture builds up in your ducts, it can become a breeding ground for mold, mildew, and other pathogens. Rodent and insect droppings may have also accumulated within your ducts, which can lead to some nasty smells.

Clogged filters

Clogged filters are the reason for many HVAC issues, including reduced air quality and temperature issues. If your filters are becoming clogged more than usual, it could be a sign of HVAC problems. Ducts loaded with debris and particulates can clog your filters faster than usual.


It’s not uncommon for ductwork to develop cracks and leaks over time. Air can escape through these openings and create whistling sounds. Rectangular sheet metal ducts might make a popping sound when air pressure problems develop.

HVAC problems cause by ductwork issues aren’t a reason to panic. Most of these problems can be fixed by simply calling in an HVAC service company like A-Abel to come clean and unclog your ducts and service your HVAC system to identify and repair and leaks or cracks.

To schedule your HVAC cleaning and repair, contact us today!