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Pros and Cons of Air Duct Cleaning

In an effort to promote healthy living and improve indoor air quality, air duct cleaning has become a hot topic. Do I need to clean my air ducts? And if so, how often should I have them cleaned? These are fair questions. Let’s look at some of the Pro’s and Con’s:


  • Having your air ducts cleaned provides peace of mind to a homeowner that they are taking extra measures to improve their indoor air quality
  • Cleaning your ducts may improve air flow throughout your heating/ cooling system
  • Having a professional inspect your air ducts could help in the long run by noticing and fixing any breakages.
  • Having your ducts cleaned prior to replacing your furnace is a good idea, as in most cases the new furnace will move more air, disturbing any settled dust in the ducting system.


  • CMHC studies indicate that duct cleaning can have a negative effect on the Indoor air quality in your home for a period of approx. 6 weeks, by disturbing otherwise settled dust particles. 
  • The equipment used to clean air ducts can actually have damaging effects, possibly requiring repair work in the future
  • Industry experts suggest that if you use a good quality furnace filter with a minimum Merv 8 rating and change it every 2-3 months as recommended, there is no need to for regular duct cleaning.
  • Duct cleaning does not include the furnace. Your furnace must be cleaned/serviced separately by a licenced technician.

Either way, if you decide to get your air ducts cleaned, or if you don’t, always make sure to hire a professional who understands how best to complete the job.

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