Open 24/7 for emergencies
Whole Home Air Duct Cleaning in Delaplane is $598, regularly $798. Propane furnace or heat pump, the camera photos come before any price.
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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 Delaplane
Delaplane is heating country first. The nearest long-record NOAA station, Warrenton 3 SE, about 18 miles south-southeast, counts more than four heating degree days for every cooling degree day, and January nights there average just under 25 degrees. So the blower in a Delaplane house does most of its yearly running between November and March, pulling the house’s air back through the returns night after night. The ridge runs colder: Mount Weather, a station on the Blue Ridge 10 miles north at 1,659 feet, logs about 5,300 heating degree days to the valley station’s 4,700, and a house partway up the slope sits somewhere between the two.
What that air travels through depends on the fuel. About half of Delaplane’s owner homes burn propane, and the Census counts no owner home in 20144 heating with natural gas. A propane furnace usually carries the air conditioner’s coil on top of it, so one blower and one set of ducts serve both seasons. About three owners in ten heat with electricity, which here usually means a heat pump with its air handler in the basement, the attic or a closet. Either way our tech starts the camera at the return, the side every winter’s air comes back through.
The houses split two ways. Four homes in ten across the ZIP went up in the 1990s, and the typical owner’s house dates from 1986, so a lot of Delaplane ductwork is past thirty and has outlived at least one furnace or heat pump. The older group is the valley’s farm dwellings, many built from fieldstone cleared out of the fields, where the ducts were threaded in long after the walls went up: through a closet, along a later wing, across a crawlspace. Those runs bend more, and the camera has more corners to look around.
Country houses put a few more things in the returns. About one owner in twenty heats with wood, and ash from a stove or an insert settles wherever the return can reach it. And the state’s 2004 survey of the Crooked Run Valley, which takes in Delaplane, found a large share of the valley’s newer houses lived in only on weekends or by season. A house shut up for weeks can collect what a lived-in one doesn’t, insects at the registers and now and then a mouse in a crawlspace run, and all of it shows up on the photos.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 20144 as a whole: every Delaplane address.
When it’s worth doing
In a weekend house opened up for the season, or any house whose heat sat off since April, the first long heating cycle stirs up whatever settled in the ducts over the summer. One puff is normal. If it comes back cycle after cycle, the camera shows where it’s coming from.
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.
Grey fuzz on the register face, or dust back on the furniture a day after you wiped it. That’s the one people usually call about.
Choosing who cleans them
Questions to ask anybody who quotes you, us included.
A wood stove or a fireplace insert beside the main system changes what ends up in the returns. A company worth hiring asks about it before the visit, and checks the return closest to the stove first.
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 and Marshall were honest with me and did a good job cleaning the dryer vent.
Where we work
Next door to Delaplane: Rectortown, Upperville, Marshall, The Plains and Orlean.
Questions
Usually not. When a heat pump is paired with a propane furnace, the furnace’s blower moves the air for both through one set of ducts, so it’s one system and one price. Two cleanings means two blowers, like a second air handler in the attic for the upstairs. Count the indoor units, not the outdoor ones.
Spring, once the heat is off for good. Warrenton’s normals put the median last freeze around April 9, and by then the winter’s dust is in the returns. Cleaning before the air conditioner starts means the cooling season begins on clean ducts, and a dryer vent cleaning on the same visit is $199 added on.
$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 Delaplane 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.