Ducts are hidden, so most people notice the effects before they see the cause. These are the six signs customers mention most when they call us.
1. Dust comes back fast
If furniture needs dusting a day or two after you clean, your system may be moving dust around the house.
2. Dark buildup around vents
Gray or black rings around supply vents and return grilles mean dust is passing through. Look inside with a flashlight.
3. A musty smell when the system runs
An odor when the AC or heat turns on can come from dust, moisture or rust in the ducts.
4. Pet hair at the vents
Fur collects at returns and inside the ducts, especially with shedding pets.
5. Allergies are worse indoors
Sneezing or itchy eyes that ease when you leave the house can point to dust in the system.
6. You just remodeled
Drywall dust and sawdust get pulled into the returns during construction.
What to do
Change your filter first. If the signs continue, have the ducts inspected. The EPA guidance on duct cleaning suggests cleaning when ducts are clogged with debris, show mold, or have signs of pests. We inspect first and tell you honestly whether cleaning is needed.
