How Often Should You Clean Your Air Ducts?

One of the questions we hear most is: how often do air ducts actually need cleaning? The honest answer is that it depends on your home and your life. Here's how to know when it's time.

The general rule

For most homes, every 3 to 5 years is a healthy rhythm. But several factors can move that timeline up.

Clean sooner if you have…

• Pets. Dander and fur build up faster than most people expect.
• Allergies or asthma. Cleaner ducts mean fewer airborne triggers.
• A recent renovation. Construction dust gets everywhere — including your ductwork.
• Visible dust around vents or settling quickly after you dust.

The bottom line

If you can't remember the last time your ducts were cleaned, it's probably time. A quick inspection — with photos — will tell you exactly where you stand.

Keep reading

• Our air duct cleaning service
• How much does air duct cleaning cost in the Lower Mainland?

How we know this

This guide reflects what the Inner Bliss Duct Cleaning crew sees on real homes across Surrey and the Lower Mainland every week — not generic advice copied from a manufacturer's brochure. We clean to recognized industry (NADCA-aligned) standards and document every job with before-and-after photos.

Written by Tia, Senior Technician. Reviewed by The Inner Bliss Office, Customer Care. Last updated May 12, 2026.