It surprises most people: the duct work in a brand new home is often dirtier than the ducts in a house that has been lived in for years. During construction, saws, sanders and drywall work run for months with the air handlers and registers wide open. Drywall powder, sawdust, wood shavings, screws, insulation fibers and even fast-food wrappers end up inside the system.
Think about how a house gets built. The HVAC rough-in goes in early, before the drywall crew, the floor sanders and the painters arrive. Every trade that follows generates fine dust, and the open duct runs act like collection channels for all of it. Drywall dust is especially troublesome because it is so fine that it coats every interior surface of the system and passes straight through standard filters.
The first time the furnace or air conditioner kicks on, all of that fine dust gets blown into every room. New homeowners often notice a film of dust returning within days of cleaning, and anyone with allergies feels it immediately. Some builders run the system during construction to keep workers comfortable, which pulls even more debris deep into the returns and the blower compartment.
There is also a mechanical reason to clean early. Construction debris that reaches the blower wheel and evaporator coil reduces efficiency from day one. A new system should not start its life working harder than it has to.
Our recommendation is simple: have the ducts professionally cleaned before you move your furniture in. It is the one time the system is completely accessible, there is nothing in the way, and it means your family starts life in the new home breathing genuinely clean air instead of months of construction residue.
A proper new-construction cleaning covers every supply run, every return, all registers, the trunk lines and the blower area, all under negative air so the debris leaves the house instead of recirculating. We also show you before-and-after photos from inside the ducts so you can see exactly what came out.
After that initial cleaning, most homes only need the service every 2 to 3 years, or sooner after any renovation work. If you just bought a new home anywhere in Delaware or Cecil County, call us at (302) 378-7002 and we will get the system cleaned before move-in day.