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Whole Home Air Duct Cleaning is $598, regularly $798, for a home up to 2,000 square feet on one system.
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Air duct cleaning in Philomont, where heat pumps and propane furnaces share the work, with camera photos before any price.
5.0 stars across 1,132 reviews
One of our technicians at a floor register, running the vacuum hose into the duct below it.
Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceOften same-day, and we will tell you honestly when we can get there.
Dedicated HVAC and plumbing teamsA dedicated HVAC team and a dedicated plumbing team, under one roof
Prices in writing, firstYou get the number in writing before any work starts
What it costs
The same price book as our air duct cleaning page, for a home up to 2,000 square feet on one system. We look first: the tech takes a cover off, puts a camera in and photographs what’s in your ducts, then shows you, so you see their current condition before you decide. No charge, including when yours are fine. Then you get the price in writing, then we clean.
Return Air Duct Cleaning
$298
Whole Home Air Duct Cleaning
$598, regularly $798
Whole Home Air Duct Cleaning with ActivePure Air Scrubber
$1,798
Dryer Vent Cleaning on its own, a year of Comfort+ membership included
$199, normally $298
Dryer Vent Cleaning, added to a duct cleaning
$199
A second system bills at 90 percent of the tier, because it’s isolated and cleaned on its own. The calculator on our air duct cleaning page does the arithmetic for a bigger house.
The dryer vent cleaning is the yearly one, and it’s in Comfort+ membership at $199 a year along with a water heater flush with a sewer camera inspection, a heating maintenance visit and a cooling maintenance visit.
What’s different in Philomont
In ZIP 20132, the Purcellville ZIP area Philomont sits in, about 42 percent of owner homes heat with electricity and about 42 percent with propane. Natural gas and oil each heat about 6 percent. An electric house often runs a heat pump and an air handler, a propane house a furnace, but the ducts are the same sheet metal or flex either way. The Purcellville station counts 4,942 heating degree days against 1,050 cooling, so the blower is busy in both seasons and busiest in winter.
The median owner home dates to 2000, and about 48 percent of homes went up since then, so a lot of Philomont’s ductwork is young. About 28 percent date from 1980 through 1999, about 24 percent from before 1980, and about 13 percent from before 1960. A house from before 1960 predates central air, and its ducts were fitted in later, through spaces that weren’t planned for them. The camera is how we learn where those runs go before anything is cleaned.
About 85 percent of homes in the ZIP area are detached houses, and only about one in nine is a townhouse. Bigger detached houses sometimes carry a second air handler, and the price you are given covers a home up to 2,000 square feet on one system. A second system is its own job, so give us the count when you book.
Extremes are when ducts get tested. Western Loudoun measured heat indices above 110F on July 28, 2023, and the Purcellville station averages 30.2 days a year at or above 90F. The January 2026 arctic outbreak put the coldest nights under Extreme Cold Warnings. A system with a packed return or a matted grille is the one that struggles then. If a dryer vent cleaning is on your list too, it joins the same trip at $199.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
Philomont’s own ZIP, 20131, is post office boxes only, so the Census Bureau maps no area for it. These are ZIP 20132 as a whole, the Purcellville ZIP area Philomont sits in, the Town of Purcellville included.
When it’s worth doing
A far bedroom that trails the thermostat while the rest of the house is comfortable points to airflow, and in a larger Philomont house the return grille or the filter slot is where we start. Dust on the grille and in the first stretch of duct shows up in the camera photos.
A 2005 house has had twenty years of filter changes, some of them missed, and the system may have run while the drywall went up. Nobody has looked inside since.
You don’t know whether the last owners had three cats or ever took a register cover off. Most new owners want it done once, early, so they know what they’re starting with.
The dryer vent, locally
Ashburn Volunteer Fire and Rescue, one of the companies in Loudoun County’s fire and rescue system, says the dryer vent, from the back of the dryer to the outside of the house, should be cleaned at least once a year, and that longer drying times are a sign it’s clogged. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who cleans them
Questions to ask anybody who quotes you, us included.
A detached house here may have more than one air handler, and a price for one leaves the others as they were. Ask for the count in writing, and ask to see photos of the supply and return side before you agree to anything.
Ask whether they’ll put a camera in and show you photos of what’s inside first. A price given at the door, sight unseen, is a price for the average house, not yours.
The returns are the big grilles that pull air back to the system, and they’re the side that collects dust. A job that only counts supply registers leaves half the system alone.
Ask what it covers: every supply and return, the main trunk, the blower compartment. The $59 mailbox coupon covers getting somebody into the attic.
Two of our crew going over a work order before the day's calls.
From our Google reviews
5.0 stars across 1,132 reviews. Read them on our reviews page.
Aaron, Kaiden, Oscar, Derek and Felix did a great job installing an HVAC unit and cleaning out the ducts and dryer vents, which were very difficult to access! They were all very professional!
Where we work
Next door to Philomont: Middleburg, Round Hill, Bluemont, Purcellville and Hamilton.
Questions
That is the ZIP area’s median year, so you are in the middle of the pack. The ducts have been through a long run of seasons, and the camera shows whether that left anything behind. Clean photos end the conversation right there. Dirty ones get a written price before a single cover comes off.
Yes. Added to an air duct cleaning it is $199; on its own it is $199, normally $298, with a year of Comfort+ membership included. Ashburn Volunteer Fire and Rescue, a company in Loudoun County’s system, advises cleaning the dryer vent at least once a year, and it is a natural pairing when the crew is already at the house.
$598 for Whole Home Air Duct Cleaning, regularly $798, on a home up to 2,000 square feet with one system, $298 for Return Air Duct Cleaning, and $1,798 with an ActivePure air scrubber installed. Dryer vent cleaning is $199 added to a duct cleaning; on its own it’s $199, normally $298, with a year of Comfort+ membership included.
Sometimes, and the camera photos are how you find out. If the duct walls are furred over, cleaning takes that out of the loop your air runs through, and the before and after are obvious. If the metal is clean, it isn’t worth doing and we’ll say so. The EPA’s position is that routine cleaning hasn’t been shown to prevent health problems, so we don’t sell it that way.
Ready when you are
Call, or send the form at the top. The camera photos come first and cost nothing, including when yours turn out to be fine.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
Virginia Class A contractor license #2705192276
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Philomont and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,132 reviews on Google, Angi, Yelp, the BBB and Facebook. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
From SwiftPro Heating, Cooling & Plumbing in Chantilly. Housing figures are the Census Bureau’s American Community Survey, 2020 to 2024, for each place named; permit, water and sewer facts link to each office’s own page and were checked in September and October 2026.