Buyer’s Guide · Trust
To choose a good air duct cleaning company, look for one that inspects before quoting, prices by your home rather than a “$99” flat gimmick, follows NADCA/EPA practices, is licensed and insured, and shows you before-and-after proof. Below is a simple checklist to separate honest pros from “blow-and-go” operators.
By the Prestige Protected Team · Updated June 2026 · Cary, Raleigh & the NC Triangle
How to choose an air duct cleaning company
- They inspect first and show you what’s in your ducts before recommending work.
- Transparent, itemized pricing based on home size, vents, and access — not a suspiciously low flat rate.
- Licensed & insured, with real local reviews and a physical service area.
- Follows NADCA/EPA practices and uses proper negative-air, source-removal equipment.
- Provides before-and-after photos and a clear scope of what’s cleaned.
- No high-pressure upsells or scare tactics on site.
What does NADCA certification mean?
NADCA (the National Air Duct Cleaners Association) sets the industry’s cleaning standard (the ACR Standard) and trains/certifies technicians. A company that follows NADCA practices is committed to thorough, source-removal cleaning rather than a quick surface job — a useful signal when you’re comparing providers.
Watch out for the opposite, too: see air duct cleaning scams to avoid.