Residential Air Duct Cleaning
Whole-system cleaning for single-family homes and townhomes: supply and return runs, registers, plenum and blower.
Residential cleaningStraight answers, not scare tactics. Every service page says when you can skip the work.
Thirty residential services, grouped by the part of the house they fix. Each service page explains who needs the work, what a technician does, what it typically costs around Dulles, and when you can skip it.
Start with what you notice. Dust blowing out of registers, a musty smell when the AC kicks on, a dryer that needs two cycles, a bedroom that never cools down — each points to a different fix, and some of those fixes have nothing to do with cleaning.
The problem guides list the likely causes first, including the cheap ones, then name the service that solves what's left.
NADCA treats the whole forced-air system as one job — ducts, registers, plenum, coil and blower. These services differ by how much of that system needs attention and by what put the dirt there.
Whole-system cleaning for single-family homes and townhomes: supply and return runs, registers, plenum and blower.
Residential cleaningEvery duct, every register and the air handler in one visit, with camera footage before and after.
Whole house cleaningDuctwork plus the equipment it connects to — blower compartment, coil face and condensate drain pan.
HVAC duct cleaningRegisters, grilles and boots cleaned — plus a straight answer on what vent-only cleaning leaves behind.
Air vent cleaningHeating-side ducts and the furnace blower, best scheduled before the heating season starts.
Furnace duct cleaningCooling-side ducts, coil and drain pan — where summer condensation creates the conditions mold needs.
AC duct cleaningHeavy debris that actually blows out of supply registers — one of the three reasons the EPA gives for cleaning.
Dirty duct cleaningDrywall dust, sawdust and debris pulled into ductwork during a remodel, basement finish or addition.
Post-construction cleaningBuilder dust in a newly built home, cleared before a year of running the system spreads it through every room.
New home cleaningThese pages deal with contamination rather than ordinary dust. The EPA's position shapes every one of them: cleaning removes mold and debris you can see, but it has never been shown to prevent health problems.
Confirmed mold removed from hard duct surfaces at the source — and wet or moldy duct insulation replaced, because it can't be cleaned.
Mold remediationWhat an EPA-registered antimicrobial treatment can do after cleaning, and why a clean system rarely needs one.
Duct sanitizingCleaning, sanitizing and disinfecting compared — and the promises no contractor can legally make about ductwork.
Duct disinfectionMusty, pet, smoke and burning smells traced to their source before anything gets cleaned or treated.
Odor removalWhat duct cleaning can and can't do for allergy and asthma households during Virginia's spring pollen season.
Cleaning for allergiesHair and dander packed into return ducts and filters in homes with dogs or cats that shed.
Pet hair cleaningLook first, then fix. Leaky joints and torn flex duct waste conditioned air and pull attic or crawl space dust into the system — repair them before paying for any cleaning.
A camera look inside the ducts and equipment, so you see the condition before anyone quotes a price.
Duct inspectionFinding where conditioned air escapes into attics, wall cavities and crawl spaces.
Leak detectionLeaks at joints and seams closed with mastic or approved foil tape — a different job from spraying sealant inside ducts.
Duct sealingTorn flex duct, crushed or sagging runs and disconnected boots fixed before the system is cleaned.
Duct repairWhere the ducts run changes the job. Attic heat, crawl space moisture and finished basement ceilings each cause different problems and need different access work.
Duct runs in hot attic space, where flex duct tears easily and leaky joints pull in insulation dust.
Attic ductsDuctwork in damp crawl spaces, where condensation and pests do most of the damage.
Crawl space ductsTrunk lines and returns in unfinished and finished basements, including runs closed in behind drywall ceilings.
Basement ductsSupply, return, bathroom and kitchen exhaust handled together as the connected airflow system they are.
Whole-home ventilationDryer, kitchen and bathroom exhaust are separate from your HVAC ducts. Dryer vents are the fire-safety job: U.S. Fire Administration data put home clothes dryer fires at about 2,900 a year, with failure to clean as the leading factor.
Lint cleared from the full exhaust run to the outside hood — the maintenance that addresses the leading cause of dryer fires.
Dryer vent cleaningCrushed, disconnected or overlong dryer ducts rebuilt to the building code's length and material limits.
Dryer vent repairAirflow, run length and exterior termination checked — useful at move-in, before a sale or between tenants.
Dryer vent inspectionNests and packed lint cleared from exterior vent hoods, then the opening protected without blocking airflow.
Nest and lint removalLong horizontal and roof-terminated dryer runs — the layouts that clog fastest — in townhome and HOA communities.
Townhome dryer ventsCooking grease and dust cleared from the duct between your kitchen hood and its outside cap, so the fan pulls smoke and steam out again.
Kitchen range hood ductsFan housing and duct cleared so shower moisture leaves the house instead of settling where mold grows.
Bathroom exhaust fansA proper cleaning covers the whole forced-air system, not just the ducts. NADCA lists the supply and return ducts, registers and grilles, plenum, coils, drain pan, blower motor and assembly, heat exchanger and air filter. Skipping a dirty component lets it recontaminate the ducts you just paid to have cleaned.
Source removal. Technicians loosen debris with rotating brushes, air whips or compressed-air nozzles while a vacuum holds the entire system under continuous negative pressure. The negative pressure pulls loosened dust out of the house instead of into your rooms. NADCA's standard is built on this method, and a shop vacuum at the registers does not meet it.
Usually not. The EPA says research has not shown biocides work inside ducts, and no products are registered for fiberglass-lined ducts or duct board. NADCA advises using an EPA-registered antimicrobial only after mechanical cleaning, only when contamination calls for it, and exactly as the label directs. It also says technicians should not claim ductwork is sanitized or disinfected.
Many do. The EPA notes that some providers use remote photography to document conditions inside ducts, and it calls a visual inspection the best way to confirm a thorough job. Ask for camera footage before cleaning and again afterward. Every part of the system should look clean, with no debris visible.
Sources: U.S. EPA, Should You Have the Air Ducts in Your Home Cleaned? (EPA 402-K-97-002) · NADCA, Proper Cleaning Methods and The Truth About Disinfection (2020) · U.S. Fire Administration, Clothes Dryer Fires in Residential Buildings.
Describe the dust, smell or airflow problem and we'll point you to the right service — or tell you it isn't a duct problem at all.