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, VA typically runs $400-$800 for a full system, with most jobs completed in a single scheduled visit. The combination of 1990s-2010s boom-era construction, high humidity off the Blue Ridge, and agricultural particulates from western Loudoun’s horse farms means Leesburg duct systems accumulate biologically complex debris faster than homes closer to DC. We schedule from our Washington, DC office and dispatch crews to Leesburg daily. Call (240) 255-4519 for a written estimate before any work starts.
Why Leesburg Homes Are Different
Leesburg sits at the rural-suburban fringe of Loudoun County, Virginia’s top equine county. Prevailing westerly winds off the Blue Ridge push hay dust, mold spores, and agricultural particulates from surrounding horse farms and hay fields directly into residential HVAC intakes. In Lansdowne and Potomac Station, we regularly pull hay particulates and animal dander from homes whose owners keep no livestock - material blown in from adjacent equestrian properties, a contamination signature that rarely appears even a few miles east toward Ashburn.
The housing stock splits sharply: pre-Civil War and early-20th-century homes in Old Town with retrofitted HVAC squeezed into non-standard spaces, alongside 2,500-5,000 sq ft colonials and craftsmans built during the 1990s-2010s Loudoun growth boom. That newer cohort is now 15-25 years old - large enough to have extensive multi-zone duct runs and, for many owners, overdue for a first professional cleaning. Leesburg’s position at the Piedmont-Blue Ridge transition brings summer humidity regularly above 70% RH and heavy pollen loads funneled through the Shenandoah Valley corridor, promoting mold colonization inside long attic duct runs that flatter, more urban NoVA communities rarely see.
Our Main Leesburg Services
Leesburg homeowners call us most often for these three services, each with its own dedicated Leesburg page and pricing.
Air Duct Cleaning in Leesburg
We clean the full duct network - supply and return runs, trunk lines, and plenum - using negative-pressure extraction (a sealed vacuum system that pulls debris out without releasing it into the home). In Leesburg, we photograph the agricultural particulate loading that wind delivers to registers on the home’s west side, so owners see what Blue Ridge proximity means for their indoor air. Every job ends with a Documented Photo Record of every duct run, before and after. Air Duct Cleaning in Leesburg

Dryer Vent Cleaning in Leesburg
Dryer vent blockages in Leesburg’s larger homes often involve 25-35 foot runs through finished basements or exterior walls with multiple elbows. We rotary-brush the full length and measure airflow before and after. The 365-Day Done Right Promise applies here too - if airflow drops back below safe levels, we return. Dryer Vent Cleaning in Leesburg

Duct Repair & Sealing in Leesburg
Leesburg’s boom-era ductwork is reaching the age where flex duct sags, mastic cracks, and sealant degrades - especially in attic runs that see extreme summer heat and winter cold. We inspect with a camera, mark every leak, and deliver a written scope with photography before any repair begins. 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.
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AfterHVAC Cleaning in Leesburg

HVAC cleaning in Leesburg addresses the full mechanical system - not just ducts, but the components that condition and move air. The 15-25 year age of most planned-community systems here means evaporator coils are often coated with the sticky, biologically active debris that high humidity and agricultural particulates create together. We clean coils, blowers, condensers, and air handlers as discrete jobs, each quoted separately with a written price before work starts, under Haven Standard Clause 1. HVAC Cleaning covers our full methodology for homeowners researching before they call.
Evaporator Coil Cleaning
Signs you need it
Ice buildup on refrigerant lines, weak airflow from registers, or a musty smell when the AC first cycles on.
What it costs in Leesburg
Evaporator coil cleaning in Leesburg typically ranges from $250 to $450, depending on accessibility and contamination level.
How we do it
We access the coil through the plenum (the air distribution box), apply foaming cleaner, rinse with low-pressure water, and photograph the before and after condition for the job record.
Blower Cleaning
Signs you need it
Uneven heating or cooling across zones, a humming motor that labors to reach set temperature, or dust puffing from registers at startup.
What it costs in Leesburg
Blower cleaning in Leesburg typically ranges from $200 to $350, with multi-speed or variable-speed motors at the higher end.
How we do it
We remove the blower assembly, clean the squirrel cage and motor housing with compressed air and solvent, balance the fan, and reinstall with a torque check on the set screw.
What HVAC Cleaning Costs in Leesburg
| Item | Typical range in Leesburg |
|---|---|
| Evaporator coil cleaning | $250-$450 |
| Blower cleaning | $200-$350 |
| Condenser cleaning | $150-$275 |
How do I know my HVAC components need cleaning, not just my ducts?
If your ducts are clean but rooms still heat unevenly, or you smell must when the AC cycles, the debris is likely on the coil or blower, not in the duct runs. We inspect both with a camera during the estimate. Call (240) 255-4519 for an exact quote - estimates are free.
Can HVAC cleaning fix the humidity problems in my Leesburg home?
Cleaning improves airflow and removes biological growth, but it does not change the system’s dehumidification capacity; if humidity stays above 60% after cleaning, we note it in the report and recommend next steps. Call (240) 255-4519 for an exact quote - estimates are free.
Air Quality & Sanitizing in Leesburg

Air quality and sanitizing in Leesburg targets the biological load that Blue Ridge winds and high humidity create together. Mold colonies in attic duct runs, bacteria on wet coils, and the persistent agricultural odor that lingers in filters - these are the signatures we treat. The 15-25 year age of most Leesburg HVAC systems means many owners are facing their first serious indoor air quality intervention. Air Quality & Sanitizing details our full approach.
Mold Treatment
Signs you need it
Visible black or green growth on register fins, a wet-cardboard smell from ducts, or family members with unexplained respiratory symptoms that worsen at home.
What it costs in Leesburg
Mold treatment in Leesburg typically ranges from $350 to $650 for localized application, with full-system treatments higher.
How we do it
We apply an EPA-registered antimicrobial through the duct network using a fogging device, let it dwell per manufacturer spec, then extract residue and photograph treated surfaces.
UV Light Installation
Signs you need it
Recurring mold after professional cleaning, or a home in a high-humidity microclimate like the Lansdowne golf course area where condensate never fully dries.
What it costs in Leesburg
UV light installation in Leesburg typically ranges from $400 to $750 for a properly sized lamp and power supply.
How we do it
We mount a UV-C lamp in the supply plenum, wire it to the air-handler blower circuit so it runs only when air moves, and verify intensity with a meter.
What Air Quality & Sanitizing Costs in Leesburg
| Item | Typical range in Leesburg |
|---|---|
| Mold treatment | $350-$650 |
| UV light installation | $400-$750 |
| Bacteria sanitizing | $300-$550 |
Does sanitizing kill the mold spores blowing in from outside?
Sanitizing treats growth inside the system, not incoming spores; for homes near active hay fields, we pair treatment with upgraded filtration and show you the pressure-drop calculation. Call (240) 255-4519 for an exact quote - estimates are free.
How long does a UV light last before replacement?
UV-C lamps degrade to ineffective output after roughly 9,000 hours of operation, which is about 12-14 months in a Leesburg home where the blower runs most of the year. Call (240) 255-4519 for an exact quote - estimates are free.
Brands We Service in Leesburg
We stock parts and service equipment from Honeywell, Aprilaire, Abatement Technologies, and Guardsman - brands whose specifications we publish so you can verify what we use before agreeing to any price. Most replacement components for Leesburg homes arrive within 24 hours. our brands
Pricing for Air Duct Cleaning in Leesburg, VA

| Service | Typical range in Leesburg |
|---|---|
| Full air duct cleaning (whole system) | $400-$800 |
| Dryer vent cleaning | $150-$275 |
| Duct repair & sealing (per system) | $500-$1,200 |
| Evaporator coil cleaning | $250-$450 |
| Blower cleaning | $200-$350 |
| Condenser cleaning | $150-$275 |
| Mold treatment | $350-$650 |
| UV light installation | $400-$750 |
Prices push higher in Leesburg when duct runs are longer than standard (common in 4,000+ sq ft Potomac Station homes), when access requires attic work in summer heat, or when agricultural contamination requires extra extraction passes. Every price is written and agreed before work starts, with no per-vent add-ons - Haven Standard Clause 1.
Neighborhoods We Serve in Leesburg
We schedule Leesburg jobs with route density in mind, typically offering appointments within 3-5 business days across these areas:
- Lansdowne
- Potomac Station
- River Creek
- Old Town Leesburg
- Exeter
Service Area - Cities Near Leesburg

CleanRun crews work daily across western Loudoun and eastern Fairfax County. We regularly schedule alongside Leesburg in Ashburn, VA, Sterling, VA, Herndon, VA, and Reston, VA. Dispatch and scheduling are coordinated from our Washington, DC office.
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 standard residential duct cleaning in Loudoun County; only duct modifications that alter the building envelope or combustion venting need county approval, and we handle that paperwork when it applies.
Most Leesburg planned-community HOAs require no special notice for service vehicles, though gated neighborhoods like River Creek need a guest list entry; we coordinate that when you book.
We typically schedule Leesburg appointments within 3-5 business days, with flexibility for homes in Lansdowne or Potomac Station where we often cluster jobs geographically.
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
"My allergies genuinely improved. They also told me the ducts did not need sealing, which I had been quoted for elsewhere."
- Petra K."The dryer vent was almost completely blocked with lint. They showed me the photograph and I understood immediately why the dryer had been running twice."
- Lucia M."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.




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