Do My Ducts Really Need Cleaning? 7 Signs It’s Time

Your HVAC can move hundreds of pounds of air every day. When dust, pet dander, and renovation debris collect in ductwork, comfort and indoor air quality take a hit. Here’s how to know when a professional duct cleaning is worth it—and what we actually do.

7 signs it’s time

1. Dust “puffs” from vents when the system starts

2. Visible buildup on registers/returns

3. Musty or stale odors you can’t place

4. Hot/cold rooms or weak airflow

5. Recent remodeling (drywall dust loves ducts)

6. Allergies feel worse at home

7. New home to you (unknown maintenance history)

What’s included in a professional cleaning

• System inspection & setup with floor protection

• High-powered negative pressure to pull debris out—never deeper in

• Agitation tools to loosen stuck dust inside supply/return runs

• Register & return cleaning where buildup is common

• Air handler attention (where accessible)

• Optional sanitization for lingering odors

Pair it with simple IAQ upgrades

• High-MERV media filter for finer capture

• Sealing & insulation on leaky ducts

• Humidity control (dehumidifier/humidifier) to curb mold and dryness

• UV treatment as an add-on inside the air handler

How often?

Most homes benefit every 3–5 years; every 2–3 years if you have pets, allergies, or recent renovations.