It’s a rental between tenants
About three in ten households in the Town of Leesburg rent. With the rooms empty, every register and return is easy to get at, and the camera photos go in the landlord’s file.
Leesburg, Virginia
Air duct cleaning in Leesburg.
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
Air duct cleaning in Leesburg, inside the town limits and out in Lansdowne. You see camera photos of the inside of your ducts before we quote a price.
- 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 Leesburg.
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.
Recent work
Recent air duct cleaning in Leesburg.
What our technicians found and fixed on visits in Leesburg, from their notes on each job.
September 2026
Dryer vent cleaning with the camera run through the line, booked with a year of Comfort+ membership. The same visit found the washer’s hot and cold supply valves leaking in a worn valve box.
September 2026
A dryer vent line cleaned out. The dryer itself wasn’t working that day, so the airflow couldn’t be measured at the hood.
June 2025
Two new Trane systems put in, with an air duct cleaning on the same job.
The system we put in first
Built to take a beating. Put in by our crew.
Heat lamps, snow and rain on one outdoor unit: that’s Trane’s own film. We’re a Trane Comfort Specialist, on Trane’s own dealer locator, and when you pick a Trane, our crew puts it in.
Films: Trane’s own.
What’s different in Leesburg
Most Leesburg duct systems are 1990s originals; downtown is the exception.
The median owner-occupied house in the Town of Leesburg went up in 1996. About four in ten homes in town date from between 1980 and 1999, and more than a third since 2000, so most of what we open here is the system the builder installed: a sheet-metal main trunk down in the basement or up in the attic, flexible runs feeding each room, and a return or two drawing from the hallway. Thirty years of filter changes, some of them late, show up at the returns first.
Downtown, in the Old and Historic District, plenty of houses are older than central air, so their ductwork came later and follows whatever path a carpenter could find: up through a closet, behind a knee wall, across the attic floor. Reaching it takes longer than cleaning it. Fewer than one in twenty homes in town were built before 1960, but those are the visits where looking first matters most.
Outside the town limits the mail still says Leesburg. Lansdowne, in 20176, is unincorporated Loudoun County, and nearly nine in ten of its homes went up since 2000, with close to four in ten in condo or apartment buildings. A Lansdowne condo tends to mean one compact closet air handler and a handful of short duct runs, a quicker visit than a house.
Close to three in ten owner-occupied homes inside the town heat with electricity, usually with a heat pump, which moves air through the same ducts in January and in July. Its indoor coil sits in that airstream, so ask for a look at it while the system is open.
Neighborhood by neighborhood
What the ducts look like across Leesburg.
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 |
|---|---|---|---|---|
| Leesburg | 1996 | single-family houses, about 4 in 10 | gas, about 7 in 10 | 1980s and 90s houses: sheet-metal trunks, flexible runs and one big return. |
| Lansdowne | 2005 | condo and apartment buildings, about 4 in 10 | gas, about 8 in 10 | Newer houses: flexible duct, often never cleaned since the builder left. |
By the numbers
Leesburg 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 Leesburg
Inside the town limits: the Old and Historic District downtown, Exeter and Carrvale inside the bypass, Potomac Station and Edwards Landing outside it.
- Median home built1996 Census
- Built before 1980about 2 in 10 Census
- Built since 2000about 4 in 10 Census
- Most homes aresingle-family houses, about 4 in 10 Census
- Heated withgas, about 7 in 10 Census
- Rentedabout 3 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.
The Loudoun County side
Lansdowne only. It’s the one Census place outside the town limits, so the farms and lots beyond it aren’t in these figures.
- Median home built2005 Census
- Built before 1980hardly any Census
- Built since 2000about 9 in 10 Census
- Most homes arecondo and apartment buildings, about 4 in 10 Census
- Heated withgas, about 8 in 10 Census
- Rentedabout 3 in 10 Census
- Newer houses run flexible duct, which needs a softer brush than sheet metal.
When it’s worth doing
When duct cleaning is worth it in Leesburg.
The house is new to you, not new
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 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.
Loudoun County
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
How to pick the best duct cleaning company in Leesburg.
Questions to ask anybody who quotes you, us included.
In an older downtown house, do they find the ducts before they quote?
Ductwork added to an old Leesburg house can wind past closets, chimneys and attic framing in ways no drawing shows. A quote from the front walk is a guess at the hardest part, so ask them to look first.
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.
Aaron is great ! He explained to me about how they clean the dryer vent, he replaced my old one with a flex type vent duct, he showed me the camera he used to see into the dryer vent. Very professional answered all my questions . Definitely 10 out of 10.
Where we work
Air duct cleaning in every Northern Virginia town we serve
Next door to Leesburg: Paeonian Springs, Hamilton, Waterford, Ashburn and Middleburg.
Fairfax County
Arlington County
Loudoun County
Prince William County
Fauquier County
Stafford County
Questions
Duct cleaning questions from Leesburg.
Can you clean the ducts in a Lansdowne condo?
Yes. Lansdowne has a Leesburg 20176 address but sits in Loudoun County, outside the town limits, and condos and houses there are priced the same as in town. Inside a condo, the job is the unit’s own runs plus the closet air handler; a shared trunk or riser belongs to the association, and you get our photos of whatever we can see of it.
Does the historic district have to approve duct cleaning?
No. The Town reviews exterior work in the Old and Historic District, and general maintenance isn’t on its list. Duct cleaning happens inside the house. If a job ever called for a new opening in an outside wall, that would be the time to call the Town’s preservation staff first.
Do you clean ducts all over town, from Exeter to Edwards Landing?
Yes. Inside the bypass in Exeter, Carrvale and Loudoun Hills, outside it in Potomac Station, Edwards Landing and River Pointe, downtown in the historic district, and out in Lansdowne. One price book covers all of it.
How much does air duct cleaning cost in Leesburg?
$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 Leesburg 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.