Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Air Duct Cleaning in Leesburg, VA
HVAC cleaning in Leesburg typically runs $380-$620 for a full system, while air quality and sanitizing treatments range from $180-$450 depending on scope. The late-1990s through mid-2000s build-out that created Potomac Station, River Creek, and Lansdowne left thousands of homes with original ductwork now hitting its first-ever professional cleaning cycle, a pattern we see almost nowhere else in Northern Virginia. Crews coordinate dispatch from our Washington, DC office and serve Leesburg locally. Call (240) 771-1508 for a written estimate before any work starts.
Why Leesburg Homes Are Different
Leesburg’s position on the eastern edge of the Piedmont foothills creates a ventilation problem distinct from flatter suburbs to the east. The Blue Ridge hardwood forests immediately to the west generate heavy oak, cedar, and maple pollen loads that infiltrate return-air intakes each spring; humid summers then create interior moisture conditions that promote biological growth inside ductwork. Ongoing land development on the suburban fringe kicks up fine, clay-rich construction dust that neighboring homes continuously pull through outdoor intakes.
The housing stock amplifies these conditions. The 1990s-2000s master-planned subdivisions north and east of downtown - Potomac Station, River Creek, Lansdowne - feature multi-zone HVAC systems with long, complex flex-duct runs throughout two-story open floor plans. Technicians routinely find flex duct installed with pronounced sags and kinks by production builders of that era. Debris pools in those low spots, and aggressive cleaning equipment can tear the inner liner if the tech doesn’t probe the run configuration first. The smaller historic core along King Street presents the opposite problem: ductwork retrofitted into 18th- and 19th-century framing, often in cramped, non-standard configurations that complicate access and cleaning.
Our Main Leesburg Services
Leesburg homeowners call us most often for these three services:
Air Duct Cleaning in Leesburg
We clean the full supply and return network, from plenum - the distribution box where conditioned air splits to each duct run - through every register. In Leesburg’s 1990s-2000s subdivisions, we photograph sagging flex-duct low points before cleaning to document debris pooling and liner condition. Every job concludes with a Documented Photo Record of every run, delivered as a standard deliverable. Air Duct Cleaning in Leesburg

Dryer Vent Cleaning in Leesburg
Dryer vent blockages in Leesburg’s larger homes often involve runs exceeding 25 feet through interior walls, with multiple elbows that trap lint in ways shorter exterior vents do not. We clear the full run from appliance to termination, inspect for proper airflow, and document the before-and-after with photos. Dryer Vent Cleaning in Leesburg

Duct Repair & Sealing in Leesburg
Production-builder flex duct in Leesburg’s major subdivisions is reaching the age where liner tears, disconnected collars, and failed tape seals become common. We repair or replace damaged sections and seal leaks with mastic or metal-backed tape, then verify with pressure testing. Duct Repair & Sealing in Leesburg

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterHVAC Cleaning in Leesburg

HVAC cleaning in Leesburg addresses the accumulated load in systems that have never been professionally serviced. The combination of heavy Piedmont pollen, humid summers, and 20-to-25-year-old original equipment in Potomac Station, River Creek, and Lansdowne means evaporator coils clogged with biological growth and blower wheels caked with fine clay construction dust. We treat these as integrated system problems, not isolated component cleanings. HVAC Cleaning covers our full methodology.
Evaporator Coil Cleaning
Signs you need it
Ice formation on refrigerant lines, weak airflow from registers, or musty odors when the AC cycles on in Leesburg’s humid July and August.
What it costs in Leesburg
Evaporator coil cleaning typically runs $180-$340 in Leesburg, with access difficulty in tight attic installations pushing toward the higher end.
How we do it
We remove the coil assembly when possible, apply foaming cleaner approved for aluminum fins, rinse with low-pressure water, and photograph the fin condition before reassembly.
Blower Cleaning
Signs you need it
Uneven heating or cooling across zones, a blower motor that runs hot to the touch, or visible dust puffing from registers at startup.
What it costs in Leesburg
Blower cleaning typically runs $140-$260 in Leesburg, with multi-speed variable blowers in newer Lansdowne builds requiring additional disassembly time.
How we do it
We remove the blower assembly, clean the wheel blades and housing with compressed air and solvent, balance the wheel on a shaft, and photograph runout before reinstalling.
What HVAC Cleaning Costs in Leesburg
| Item | Typical range in Leesburg |
|---|---|
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $140-$260 |
| Condenser cleaning | $120-$220 |
How do I know my HVAC system was actually cleaned?
Every HVAC cleaning in Leesburg includes a Documented Photo Record of the evaporator coil, blower wheel, and condenser fins before and after. You receive these as a standard deliverable, not upon request.
Can HVAC cleaning fix uneven temperatures between floors?
It can if the cause is restricted airflow from a dirty blower or clogged coil. If duct leakage or poor original design is the root cause, we’ll note that in writing and recommend Duct Repair & Sealing in Leesburg as the next step. Call (240) 771-1508 for an exact quote - estimates are free.
Air Quality & Sanitizing in Leesburg

Air quality and sanitizing in Leesburg targets the biological growth that humid summers and heavy pollen loads create inside 20-to-25-year-old duct systems. The clay-rich construction dust from ongoing development also carries organic material that supports microbial colonies in moisture pockets, particularly at flex-duct sags in Potomac Station and River Creek. We treat these conditions with applied chemistry and installed prevention, not masking agents. Air Quality & Sanitizing details our full protocol.
Mold Treatment
Signs you need it
Visible discoloration on register faces, a persistent earthy odor when the system runs, or allergy symptoms that worsen seasonally in Leesburg’s high-pollen spring.
What it costs in Leesburg
Mold treatment typically runs $280-$520 in Leesburg, with extent of colonization and number of affected duct runs determining final scope.
How we do it
We apply an EPA-registered antimicrobial through the full duct network under negative-pressure extraction, then HEPA-vacuum all registers and the plenum.
UV Light Installation
Signs you need it
Recurring biological growth after professional cleaning, or a home in Lansdowne or River Creek with chronic humidity control issues due to oversized AC equipment.
What it costs in Leesburg
UV light installation typically runs $320-$580 in Leesburg, with dual-lamp systems for large multi-zone homes at the higher end.
How we do it
We mount a UV-C lamp in the supply plenum, wire to the air-handler blower circuit for automatic operation, and verify irradiance with a meter.
What Air Quality & Sanitizing Costs in Leesburg
| Item | Typical range in Leesburg |
|---|---|
| Mold treatment | $280-$520 |
| UV light installation | $320-$580 |
| Bacteria sanitizing | $180-$340 |
Does UV light actually prevent mold in Leesburg’s humid climate?
UV-C lamps inhibit biological growth on the coil and in the plenum by continuous irradiation. They do not clean existing debris, so we install them only after full system cleaning.
How long does mold treatment take to work?
Odor reduction is typically immediate; full colony elimination requires 48-72 hours of dry airflow. We schedule a follow-up photo inspection at 30 days under our 365-Day Done Right Promise. Call (240) 771-1508 for an exact quote - estimates are free.
Brands We Service in Leesburg
We stock filters, UV lamps, and replacement media for Honeywell, Aprilaire, and Abatement Technologies systems commonly installed in Leesburg’s 1990s-2000s builds. Most parts are available within 24 hours; see our brands for the full roster including Guardsman and Rotobrush equipment we deploy on every job.
Pricing for Air Duct Cleaning in Leesburg, VA

| Service | Typical range in Leesburg |
|---|---|
| Full HVAC cleaning | $380-$620 |
| Evaporator coil cleaning | $180-$340 |
| Blower cleaning | $140-$260 |
| Condenser cleaning | $120-$220 |
| Mold treatment | $280-$520 |
| UV light installation | $320-$580 |
| Bacteria sanitizing | $180-$340 |
| Odor removal | $150-$280 |
Prices in Leesburg push higher when systems haven’t been cleaned in 15-plus years, when flex-duct sags require manual debris removal before machine cleaning, or when historic-home retrofits demand custom access. Every price is written and agreed before work starts, Haven Standard Clause 1 - no exceptions, no add-ons after the truck arrives.
Neighborhoods We Serve in Leesburg
We schedule Leesburg appointments with route density in mind; most neighborhoods see same-week availability. Crews are identified by name before arrival under Haven Standard Clause 3: Verified Crews.
- Potomac Station
- River Creek
- Lansdowne
- Historic District (King Street corridor)
- Beacon Hill
Service Area - Cities Near Leesburg

CleanRun crews serve the full Loudoun County corridor and adjacent Fairfax communities. We regularly schedule alongside Leesburg in Ashburn, VA, Sterling, VA, Herndon, VA, and Chantilly, VA. Dispatch and scheduling are coordinated from our Washington, DC office; all calls are answered by a live person.
Serving Leesburg, VA - Our Local Coverage Area
We’re based in the Leesburg area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in Leesburg

No permit is required for residential duct cleaning or sanitizing in Leesburg. Duct repair or modification that alters the HVAC footprint may require Loudoun County inspection; we note this in writing if your scope crosses that line.
Most Leesburg master-planned communities require contractor vehicle registration at the gatehouse. We provide license, insurance, and crew identification in advance upon request; Haven Standard Clause 3 requires us to identify technicians by name before any arrival.
Yes. We schedule Leesburg appointments across all seven days with morning and afternoon windows. Your written price confirmation includes the crew’s names and estimated arrival window; you’ll receive a call 30 minutes before they reach your driveway.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Leesburg Customers Say
"Thorough job on the ducts and the dryer vent. Left the house clean and the paperwork was clear."
- Rafael I."Flat price agreed up front, no per-vent add-ons at the end. That was the whole reason I did not call the coupon company."
- Suzanne B."The before and after photographs of each run are the reason I used them. You cannot argue with what came out of the return."
- Marguerite O.




Before
After
Before
After