How Often Should You Clean Your HVAC Ducts?

For most Calgary homeowners, the recommended schedule for duct cleaning is every two to three years. That’s often enough to keep your system free from major dust buildup while maintaining good air quality throughout your home.

According to local HVAC professionals, this two-to-three-year interval works well for most families because:

• • Calgary homes typically experience moderate dust accumulation

  • Well-maintained furnaces and filters help reduce buildup

  • Regular cleaning prevents efficiency loss in heating and cooling systems

However, every household is different — and some may need cleaning more often.

Certain situations can lead to faster dust or allergen buildup. You may want to clean your ducts every 1 to 2 years if:

• • You have family members with allergies, asthma, or respiratory sensitivities

  • There are pets that shed or track in dust and debris

  • You’ve recently completed renovations or construction inside your home

  • You notice musty smells, visible dust, or reduced airflow from vents

In these cases, more frequent duct cleaning helps reduce airborne irritants and ensures your HVAC system is circulating clean, fresh air.

If you’re concerned about dust or air quality in your home, there are a few upgrades worth considering. Many Calgary HVAC professionals recommend:

• • High-efficiency furnace filters — trap more dust, allergens, and pollen before they circulate.

  • Ultraviolet (UV) light systems — help eliminate bacteria, mold spores, and odors.

  • Regular furnace maintenance — keeps your air system clean and efficient year-round.

These improvements can make a noticeable difference in indoor comfort and respiratory health, especially for families with young children or anyone sensitive to air quality changes.

For most homes in Calgary, plan to clean your HVAC ducts every two to three years. If you’re dealing with allergies, pets, or ongoing air quality concerns, schedule cleanings more frequently and consider upgrading your furnace filtration system.

By keeping your ducts clean and your air system well-maintained, you’ll enjoy a healthier home environment, better airflow, and a furnace that runs more efficiently all year long.