Is Duct Cleaning a Waste of Money?
While some sources caution that duct cleaning alone may not dramatically improve energy efficiency or indoor air quality, it can still be beneficial under certain conditions—and at the very least, it helps clear out visible dust and debris.
According to Natural Resources Canada, blockages in air ducts can reduce the efficiency of HVAC systems and lead to increased energy costs. Regular cleaning can help ensure airflow remains unobstructed and systems operate more efficiently.
That said, the Canada Mortgage and Housing Corporation (CMHC) conducted studies indicating that duct cleaning alone typically does not significantly change air quality or airflow, and therefore may not reduce heating costs.
At Power Vac of Ottawa, we believe in a balanced approach: while duct cleaning may not be a cure-all, it’s valuable when paired with proper HVAC maintenance, upgraded filters, and other efficiency measures.
Is Duct Cleaning Mandatory in Ontario?
What Time of the Year Is Best for Duct Cleaning?
Cleaning your ducts in the springtime is ideal. Since your heating and cooling systems see less use then, dust, dirt, and other debris have more time to settle in the ducts—so cleaning them in spring can prevent these particles from being circulated when you crank up your AC during summer.
How Often Should Ductwork Be Cleaned in a House?
There’s no one-size-fits-all answer, but the consensus is:
Every 3–5 years for most homes
More frequently if you have pets, allergies, renovations, or pest issues
In homes with allergy sufferers or heavy particulate load, annual cleaning may be warranted
How Do I Know if My Ducts Need Cleaning?
Watch for these clear indicators:
Renovation dust post-construction—particles like drywall dust or sawdust settling in new ductwork
Rising energy bills—could mean your HVAC system is working harder due to restricted airflow
Musty or strange odors—possibly caused by mold, mildew, or even pests inside your ducts
Frequently Asked Questions (FAQ)
Over time, dust, pollen, pet dander, mold spores, and other contaminants build up inside your ductwork. Each time your HVAC system runs, these particles can circulate through your home, affecting the air you breathe. Professional duct cleaning from Power Vac of Ottawa removes this buildup, reducing airborne allergens and improving overall indoor air quality.
Common signs include visible dust or debris coming from vents, musty or unpleasant odors when your HVAC system runs, an unexplained increase in allergy symptoms, or rising energy bills. If your home has recently undergone renovations, your ducts may also contain drywall dust and construction debris.
Changing your furnace filter is essential, but it can’t remove debris that has already settled deep inside your ductwork. Filters only capture particles passing through the system—not the buildup that clings to duct walls. A professional cleaning addresses this hidden contamination, providing a more complete solution.
For most average-sized homes, a full duct cleaning takes between 2 and 4 hours. The time depends on the size of the home, the condition of the ductwork, and whether there are additional systems (like multiple furnaces) that need attention. Power Vac of Ottawa ensures every cleaning is thorough and not rushed.
Yes. When ducts are clogged with dust and debris, your HVAC system must work harder to move air throughout your home, which increases energy consumption. Clean ducts allow for better airflow, helping your system run more efficiently and potentially lowering your utility costs.
Contact Power Vac of Ottawa
Ottawa (Head Office)
Power Vac of Ottawa
Ottawa, Ontario, Canada
Phone: (613) 733-2364
Email: info@powervacofottawa.ca