Cooling Coils: A Source of Odors in Your Commercial Building?

Air Flow Across Cooling Coils

February 27, 2017

As our incredibly brief winter draws to a close, it’s time to think about cleaning your cooling coils.  If you or your tenants notice a musty smell, it could be that your cooling coils are clogged up with debris.  When that debris gets moist, it can quickly develop mold and mildew.  That fungal and bacterial growth can spread down the ductwork, pushed by the force of the air blowing through the a/c, and make a small problem (fungal growth on your coils) a big problem (fungal growth spread throughout the whole HVAC unit). To prevent that bigger problem, give us a call to clean your cooling coils.  A little preventative maintenance now can save you a lot of headache in the future.


We clean all coils thoroughly and evenly, using our steam cleaner.  Also, we use a coil cleaner that has a neutral pH, the same pH as water, in fact.  This means that we aren’t using chemicals that will leave your coils pitted and brittle.  We are committed to green cleaning! As always, we clean all coils and all ductwork (Return and/or Supply) to the NADCA standards.

Take a look at the two photos below, showing the difference between a “standard” cooling coil cleaning and our cleaning process. You can clearly see the lines from a pressure washer on the improperly cleaned coils. There may be some clean spots, but there is still a lot of dirt left clogging up those coils.
Improperly cleaned dirty cooling coil inside an air handler unit

Improperly Cleaned Cooling Coil

Clean Cooling Coil After Picture inside Air Handler Unit Properly Cleaned

Properly Cleaned Cooling Coil


During the spring, we perform air duct cleaning when it is most convenient to your clients. Often, for buildings such as office buildings or retail spaces, this means cleaning the air ducts and HVAC system during the night and on the weekends, when the building is unoccupied. This leaves plenty of time to get the system back up and cooling the space before your tenants return in the morning.

We know that your commercial clients often need immediate attention in order to get up and running again. For that reason, we can have a commercial crew deployed to a jobsite in less than 48 hours in most cases.

Click here to read more about our cooling coil cleaning procedures in commercial buildings.

Give us a call using the number above if you have any questions about the blog post, or need to schedule residential, commercial, or industrial work. We are happy to answer any questions you have!

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