Heating & Cooling · 2026-06-17

How Often Should You Really Clean Your Air Ducts?

Duct cleaning isn't a fixed schedule — here's when it's actually worth it.

Most homes don't need duct cleaning on a set schedule. It's worth doing when there's visible mold inside the ducts, a rodent or insect infestation, or heavy dust and debris actually blowing out of the registers.

If no one has unexplained allergy symptoms and the system runs clean, frequent cleaning may not change much. When you do hire a service, ask exactly what's included and avoid the cheap 'whole-house special' that turns into upsells on arrival.

Relevant resource: a duct-cleaning service.