Do You Have Odors in Your HVAC System?

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Odor Elimination from Heating & Cooling Systems

No matter what season it is, you’re always going to need your HVAC unit. However, if you have recently turned it on only to find that it has an unpleasant odor, you might have a bigger problem than you think.

Potential Odors

Before you can do anything to eliminate the smell, it’s important that you know what kind of smells an HVAC unit can produce. There are a few odors that an HVAC system can give off. The most common odor is a burning smell. This can happen when dust builds up inside the unit. However, if it persists or gets worse this is a sign that your HVAC unit is starting to overheat.

Another common, yet potentially deadly smell that an HVAC unit can have is a rotten egg smell. Smelling rotten eggs is a clear indicator that there’s a gas leak. If this is the case, open your windows, contact your gas company immediately and exit your home.

Lastly, HVAC units may give off a moldy or must type of smell. This smell is often compared to the smell that wet wood gives off. If you start to smell this, don’t just brush it off. Contact an HVAC cleaning professional immediately to get to the source of the problem. Mold can cause a variety of health problems left to linger.

  • Air vent odors may indicate a problem

  • Clean debris from your HVAC system

  • Help prevent mold growth in your HVAC system

  • Remove animals, bugs or insects

What Causes These Odors?

Unpleasant odor from your HVAC don’t just appear on their own. There’s always going to be an underlying source. Depending on the cause, you may require the assistance of an HVAC professional.

As stated above, one of the most common causes of an odor is the accumulation of dust. If the HVAC system isn’t regularly maintained, dust can accumulate quickly. In fact, dust has an odor by itself, however, it can turn into a burning smell when going through a furnace or an evaporator coil.

Another possible cause for odor having dead animals in your HVAC unit. Unfortunately, small animals such as birds and squirrels like to make their nests in furnaces due to the abundance of warmth. However, they ultimately end up dying because they become trapped. As unpleasant as it is, if you suspect this has happened, then you’ll need to contact an HVAC cleaning professional to remove it.

While it’s possible to DIY minor issues with your HVAC unit, there are times when you need the help of a qualified professional. These include seasonal maintenance and repairs that even the handiest of homeowners simply can’t tackle. Play it safe and reach out to Will-Do Furnace & Chimney Cleaning for assistance.

Bite the Dust with Us!

See 5-star Reviews From Customers Like You

Came and cleaned our vents and the difference is amazing. Now every room is nice and toasty where we had no heat coming in at all! They were very polite and nice; worked around us and our brand new baby. Would definitely recommend them to any of my friends and family. Very impressed with the professionalism of this company!


Great customer service!


Bruce is excellent. He did a thorough job on my furnace, ducts & vents. Very personable & pleasant gentleman. My go-to vent cleaning guy for sure!

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