Your duct work is hidden, but it leaves clues. Here are the seven signs we tell Delaware homeowners to watch for, and what each one usually means.
Sign one: dust that reappears around supply registers and on furniture within days of cleaning. That dust is not coming from outside. It is being pushed out of the ducts every time the system runs, and no amount of dusting keeps up with it.
Sign two: a musty or stale odor that appears when the heat or air conditioning starts, then fades. That smell usually means buildup inside the system is being warmed and circulated. If the smell is strong or earthy, it can also point to moisture or mold inside the duct work, which deserves a closer look.
Sign three: visible puffs of dust when the blower starts. Stand near a register and have someone switch the system on. If you see a little cloud, the supply runs are carrying loose debris.
Sign four: uneven airflow between rooms. A room that never heats or cools like the rest of the house can be a design issue, but it can also mean a duct run is partially blocked with debris or a clogged register.
Sign five: worsening allergy or asthma symptoms indoors. If someone in the home feels congested or itchy inside and better within an hour of leaving, the air inside the house is part of the story, and the ducts are the largest air pathway in the building.
Sign six: a filter that clogs unusually fast. If you are changing filters every few weeks instead of every few months, the system is moving a lot of material around, and some of it is staying inside the ducts.
Sign seven: a recent renovation, move-in, or water event. Construction dust, the previous owner's history, and moisture are three things you cannot see but absolutely inherit.
Any one of these is a good reason to have the system inspected. A proper cleaning covers the whole system: supply runs, returns, registers, plenum and blower. Anything less just moves the dust around. Call us at (302) 378-7002 and we will tell you honestly what your system needs.