You’re between tenants
Close to four in ten homes inside the Town of Herndon are rented. An empty unit is the quickest duct cleaning there is, and the before and after photos record what shape the system was in when the next lease started.
Herndon, Virginia
Air duct cleaning in Herndon.
Whole Home Air Duct Cleaning is $598, regularly $798, for a home up to 2,000 square feet on one system.
Get your price in writing
Send this and the office calls or texts you back to set a time.
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Rather talk now? (703) 997-9757
Herndon air duct cleaning, Town or county side: camera photos of what’s inside your ducts come first, then a written price, then the cleaning.
- Camera photos first
- Priced by the system, in writing
- Dedicated HVAC team
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
What duct cleaning costs in Herndon.
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 Herndon
In the Town of Herndon, the ducts usually hang off a heat pump.
Inside the town limits the 1970s are the biggest building decade, with the 1980s right behind. A house from those years usually still runs the sheet-metal trunk it was built with, flexible runs added wherever a basement or a bonus room got finished later, and one or two big returns pulling air for a whole floor. Those returns collect the most, so they’re the first covers we take off.
About six in ten town owners heat with electricity, so the blower we clean around is usually a heat pump’s air handler rather than a furnace. In the town’s townhouses, roughly a quarter of its homes, that air handler tends to live in a closet or up in the attic, and reaching it is half the visit. Tell us where yours is when you book.
Another quarter of the town lives in condo and apartment buildings with small systems and short runs, and close to four in ten town homes are rented. If you own one you rent out, the gap between tenants is the easy window: nothing on the floors, nobody home, and the camera photos go in your file before the next lease.
On the county side, Franklin Farm, Floris and Dranesville are mostly 1980s single-family houses, many big enough for two systems, each its own cleaning. McNair, along Sunrise Valley Drive, is the newer exception: mostly condo buildings put up since 2000.
Neighborhood by neighborhood
What the ducts look like across Herndon.
Census figures for each place, and what that usually means when we open the system. Median year built and heat count owner-occupied homes only.
| Place | Median home built | Most homes are | Heated with | What we usually find |
|---|---|---|---|---|
| Franklin Farm | 1985 | single-family houses, about 9 in 10 | electricity, about 5 in 10 | 1980s and 90s houses: sheet-metal trunks, flexible runs and one big return. |
| Herndon | 1981 | single-family houses, about 4 in 10 | electricity, about 6 in 10 | 1980s and 90s houses: sheet-metal trunks, flexible runs and one big return. |
| Dranesville | 1984 | single-family houses, nearly all | electricity, about 6 in 10 | 1980s and 90s houses: sheet-metal trunks, flexible runs and one big return. |
| McNair | 2003 | condo and apartment buildings, about 6 in 10 | gas, about 7 in 10 | Condo and apartment buildings: small closet systems and short runs. |
| Floris | 1990 | single-family houses, about 8 in 10 | gas, about 6 in 10 | 1980s and 90s houses: sheet-metal trunks, flexible runs and one big return. |
| Hutchison | 1979 | townhouses, about 5 in 10 | electricity, about 7 in 10 | Townhouse streets: an air handler in a closet or attic, and a long dryer vent run. |
| Sully Square | 2015 | condo and apartment buildings, about 6 in 10 | gas, about 6 in 10 | Condo and apartment buildings: small closet systems and short runs. |
By the numbers
Herndon houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
The Town of Herndon
Inside the town limits. Floris, Franklin Farm, McNair and Dranesville, on the Fairfax County side, are counted by the Census as places of their own.
- Median home built1981 Census
- Built before 1980about 4 in 10 Census
- Built since 2000about 2 in 10 Census
- Most homes aresingle-family houses, about 4 in 10 Census
- Heated withelectricity, about 6 in 10 Census
- Rentedabout 4 in 10 Census
- 1980s and 90s houses usually run one big central return for a whole floor, and it loads up fast.
- Townhouse dryer vents run long, to the roof or the back wall, and long runs clog sooner.
When it’s worth doing
When duct cleaning is worth it in Herndon.
Nobody remembers the last time
Which is most houses. Nobody opens a duct, so it never comes up until somebody looks.
You just bought the place
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
What the county says about dryer vents.
Fairfax County
Fairfax County Fire and Rescue tells every household to clean the lint out of the dryer vent pipe once a year, sooner if clothes are taking longer to dry, and to have a gas dryer checked by a professional. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who cleans them
How to pick the best duct cleaning company in Herndon.
Questions to ask anybody who quotes you, us included.
Will they open the closet air handler, not just the registers?
In a Herndon townhouse or condo the blower sits in a closet or the attic, and that’s where the dust coming out of your registers starts. A cleaning that never opens the air handler has skipped the part doing the blowing.
Do they look before they quote?
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.
Do they clean the returns, or only the supply vents?
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.
Is the price for the whole system, in writing?
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
What our customers say.
5.0 stars across 1,132 reviews. Read them on our reviews page.
Excellent service! Aaron was very professional and punctual. Did an amazing job cleaning our dryer vents and inspecting our air ducts. Thank you!
Where we work
Air duct cleaning in every Northern Virginia town we serve
Next door to Herndon: Reston, Sterling, Great Falls, Oakton and Chantilly.
Fairfax County
Arlington County
Loudoun County
Prince William County
Fauquier County
Stafford County
Questions
Duct cleaning questions from Herndon.
Do you clean ducts inside the Town of Herndon and out in Franklin Farm?
Both, with the same crew and the same prices. The town line changes your water company and your permit office, not the price: $598 for Whole Home Air Duct Cleaning on a home up to 2,000 square feet with one system, and duct cleaning takes no permit on either side.
Is a Herndon condo a smaller duct job?
Usually. A condo system is a small air handler in a closet feeding short runs, so it takes less time than a house. If something past your unit’s walls looks bad, like a shared exhaust shaft, that’s the association’s to fix, and our photos give you something to show them.
My 1970s Herndon house has a return in the hallway floor. Is that normal?
Common, yes. Houses from that era often pull return air through a grille in the floor or low on a hall wall, sometimes through a boxed-in space between joists rather than a sealed duct. It gathers dust from the whole floor, so it gets cleaned first and photographed before and after.
How much does air duct cleaning cost in Herndon?
$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.
Is it worth it?
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
Camera photos first, at no charge.
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 Herndon 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.