Move-In Duct Sanitization

Signs your new home needs duct sanitization

Even a brand-new home’s ductwork can harbor dust, pet hair, or even biological growth from construction or prior occupancy. Look for clues like a visible puff of dust when the HVAC first turns on, or dust settling on surfaces near supply vents within days of cleaning.

A musty smell that fades once the system shuts off is another red flag—it often signals trapped moisture or organic buildup inside the ducts.

Surface dust accumulating faster in one room than others, or a fine gray film reappearing on register grilles after wiping, points to active dust delivery through those vents.

These signs don’t always mean severe contamination, but they do indicate the ducts could benefit from a thorough sanitization before your family moves in.

What affects pricing and timing?

Pricing for move-in duct sanitization in Sandy varies based on the size of your home, the complexity of the ductwork, and whether additional treatments (like biocide applications) are needed.

Most providers charge a flat system fee plus per-vent pricing beyond a base count, typically covering supply and return runs, registers, and accessible diffusers. The total usually ranges from $300 to $560 for a whole-home system, depending on the house layout and any extra steps required.

How often you’ll need to repeat the service depends on your household’s habits—especially air filter changes, pet shedding, and sealing gaps where dust can enter the system.

Homes with heavy pet hair or unsealed duct connections may see faster buildup, while those with routine maintenance (like monthly filter changes) can stretch intervals longer.

There’s no one-size-fits-all schedule; industry guidelines suggest anywhere from once a year to once every five years, but the real answer depends on your specific living conditions.

What’s included—and what isn’t?

A standard move-in duct sanitization covers inspection, mechanical agitation of duct walls, HEPA vacuum extraction of debris, and cleaning of registers and diffusers. However, not all services include HVAC coil or blower cleaning, or address disconnected flex duct sections.

Some providers may also bundle add-ons like UV-light treatments or biocide applications, which can alter the scope and cost. Always confirm whether the quote covers the main trunk lines, the unit itself, or only visible vent openings.

Dryer vent cleaning is a separate service—though it’s often confused with ductwork cleaning—and should be specified separately if needed. If mold or pest contamination is found during inspection, additional remediation steps may be required, which could change the original pricing. Clarifying these details upfront helps avoid surprises later.