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.
Before
After
Before
After
Before
AfterAir Duct Cleaning in Ashburn, VA
Complete HVAC cleaning and air quality treatment for Ashburn homes typically runs $450-$1,200 for whole-system work, depending on the size of the home and the condition of the ductwork. We’re CleanRun Duct Repair & Cleaning, and we dispatch crews to Ashburn from our Washington, DC office. Every job starts with a written price before any work begins, and every duct run is photographed before and after. Call (240) 255-4519 for a free estimate.
Ashburn’s large-footprint colonials and transitional homes, built in waves from the mid-1990s through the late 2000s, carry more linear feet of flexible ductwork than typical Northern Virginia suburbs. Those multi-zone systems, now 15-25 years old, are hitting the maintenance window where debris accumulation, sagging joints, and mold growth from Loudoun County’s humid summers become measurable problems inside the plenum.
Why Ashburn Homes Are Different
Ashburn sits in the Piedmont at the edge of the Dulles corridor, where humid continental summers produce sustained condensation inside improperly sealed flex duct. The region’s heavy spring pollen loads, amplified by the ornamental trees planted across master-planned communities, push particulate through return registers every April and May.
The housing stock is distinctive: thousands of 3,000-5,000+ square foot homes built by NVR/Ryan Homes, Pulte, and similar tract builders between roughly 1995 and 2010. These homes feature multi-zone HVAC with long flex-duct runs through attic and crawl-space plenum areas. In Broadlands and Brambleton, secondary air handlers tucked into finished attic knee-wall spaces feed short, tightly-bent flex-duct runs to upstairs bedrooms. Homeowners often don’t know these runs exist, yet they collect the heaviest debris load and are the first place mold appears after a humid summer.
No neighboring Loudoun or Fairfax city has this density of same-era, same-builder housing all reaching the same maintenance threshold simultaneously.
Our Main Ashburn Services
Most Ashburn homeowners who call us need one of these three services.
Air Duct Cleaning in Ashburn
We clean the full supply and return network, including the hidden flex runs in knee-wall spaces that many homeowners have never inspected. Every run is photographed before and after, and the photo record is delivered as part of the standard job. Our crews use Rotobrush and Nikro equipment for negative-pressure extraction through the register openings. Air Duct Cleaning in Ashburn
Dryer Vent Cleaning in Ashburn
Lint accumulation in the long vent runs typical of Ashburn’s large homes creates fire risk and extends drying times. We clean the full vent path from the dryer to the exterior termination, photograph the obstruction, and verify airflow with a meter. Dryer Vent Cleaning in Ashburn
Duct Repair & Sealing in Ashburn
Sagging flex-duct joints and deteriorated tape are common in 15-25 year old systems. We repair or replace damaged sections and seal the plenum with mastic, photographing every repair. Duct Repair & Sealing in Ashburn
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 Ashburn
Ashburn’s multi-zone systems with extensive flex ductwork require more than register-level vacuuming. The evaporator coils and blowers in these large homes work harder and longer than standard systems, and the humid summers leave measurable biological residue on wet components. We clean the full mechanical system, not just the ducts, and every component is photographed before and after. HVAC Cleaning covers our full process for homeowners outside Ashburn as well.
Evaporator Coil Cleaning
Signs you need it
Ice formation on the coil, reduced airflow from registers, or musty odor when the AC first cycles on.
What it costs in Ashburn
Evaporator coil cleaning in Ashburn typically ranges from $280 to $450 for a standard residential system.
How we do it
We access the coil through the plenum, apply foaming cleaner, rinse with low-pressure water, and photograph the before and after condition.
Blower Cleaning
Signs you need it
Vibration or noise from the air handler, uneven airflow between zones, or dust recirculating immediately after duct cleaning.
What it costs in Ashburn
Blower cleaning in Ashburn typically ranges from $220 to $380 for a standard residential unit.
How we do it
We remove the blower assembly, clean the wheel and housing with compressed air and solvent, balance the assembly, and photograph all stages.
What HVAC Cleaning Costs in Ashburn
| Item | Typical range in Ashburn |
|---|---|
| Evaporator coil cleaning | $280 - $450 |
| Blower cleaning | $220 - $380 |
| Full HVAC system cleaning (coil, blower, ducts) | $650 - $1,200 |
How do I know my HVAC system needs cleaning, not just the ducts?
If you smell musty air when the AC starts, see ice on the coil, or feel weak airflow despite clean filters, the mechanical components need attention. Call (240) 255-4519 and we’ll inspect the full system, write a price for only what’s needed, and photograph everything we find.
Can HVAC cleaning fix the humidity problems in my Ashburn home?
Clean coils and blowers move air more efficiently, which helps the system dehumidify properly, but severely compromised ductwork may need sealing or repair to fully address moisture intrusion. We’ll photograph the source and write separate prices for cleaning versus repair so you can decide.
Air Quality & Sanitizing in Ashburn
Ashburn’s humid summers and heavy spring pollen create conditions where mold and bacteria establish in ductwork, particularly in the short, hidden flex runs feeding upstairs bedrooms. We treat biological contamination with documented application of EPA-registered products, and we install permanent air purification equipment for homes with recurring problems. Air Quality & Sanitizing details our full protocol.
Mold Treatment
Signs you need it
Visible mold on registers or inside the plenum, musty odor that persists after cleaning, or allergy symptoms that worsen when the HVAC runs.
What it costs in Ashburn
Mold treatment in Ashburn typically ranges from $350 to $650 depending on the extent of contamination and accessibility of affected runs.
How we do it
We apply an EPA-registered antimicrobial through the full duct network, treat the plenum and air handler, and deliver before-and-after photos of every treated run.
UV Light Installation
Signs you need it
Recurring mold or biological growth despite previous cleaning, or a home with occupants who are immunocompromised or severely allergic.
What it costs in Ashburn
UV light installation in Ashburn typically ranges from $480 to $780 for a properly sized unit with installation in the plenum.
How we do it
We size the UV-C unit to the air handler capacity, install it in the return plenum for maximum exposure, and verify irradiance levels with a meter.
What Air Quality & Sanitizing Costs in Ashburn
| Item | Typical range in Ashburn |
|---|---|
| Mold treatment (whole system) | $350 - $650 |
| Bacteria sanitizing | $280 - $520 |
| UV light installation | $480 - $780 |
Is the mold in my ducts dangerous, or just unpleasant?
Most residential duct mold is allergenic rather than toxigenic, but the concentration and species matter. We photograph what we find, explain the condition in plain language, and write a treatment price only if the contamination warrants it. Call (240) 255-4519 for an inspection.
Will UV lights actually prevent mold from coming back?
UV-C light at proper dosage prevents mold colonization on irradiated surfaces, but it does not clean existing debris. We install UV only after thorough cleaning, and we specify the replacement bulb schedule in writing.
Brands We Service in Ashburn
We stock parts and service equipment from Honeywell, Aprilaire, and Abatement Technologies, with most common filters, UV bulbs, and sanitizer cartridges available without ordering delay. Our brands page lists the full roster. For specialized components, our Washington, DC office coordinates next-day delivery to Ashburn.
Pricing for Air Duct Cleaning in Ashburn, VA
| Service | Typical range in Ashburn |
|---|---|
| Standard air duct cleaning (up to 2,500 sq ft) | $450 - $650 |
| Large home duct cleaning (2,500-4,500 sq ft) | $650 - $950 |
| Extra-large home duct cleaning (4,500+ sq ft) | $950 - $1,400 |
| Dryer vent cleaning | $180 - $280 |
| Duct repair & sealing (per system) | $350 - $750 |
| Evaporator coil cleaning | $280 - $450 |
| Blower cleaning | $220 - $380 |
| Full HVAC system cleaning | $650 - $1,200 |
| Mold treatment | $350 - $650 |
| Bacteria sanitizing | $280 - $520 |
| UV light installation | $480 - $780 |
| Air purifier installation | $580 - $1,100 |
Prices increase in Ashburn when homes have more than two HVAC zones, extensive knee-wall ductwork requiring access panel removal, or contamination requiring multiple treatment passes. Every price is written and agreed before work starts, with no per-vent add-ons or post-inspection upsells.
Neighborhoods We Serve in Ashburn
We work across all Ashburn master-planned communities, with scheduling coordinated to minimize drive time between appointments. Most Ashburn homeowners receive a next-available appointment within three to five business days.
- Ashburn Village
- Ashburn Farm
- Broadlands
- Brambleton
- One Loudoun
Service Area - Cities Near Ashburn
Our crews serve the full Loudoun County corridor and adjacent Fairfax communities. We regularly schedule appointments in Leesburg, VA, Sterling, VA, Herndon, VA, and Reston, VA, often routing same-day crews between Ashburn and these neighboring cities.
Serving Ashburn, VA - Our Local Coverage Area
We’re based in the Ashburn 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 Ashburn
No permit is required for standard duct cleaning or sanitizing in Loudoun County. Duct repair that involves structural modification or relocation may require a permit; we handle the application and inspection coordination as part of the written scope if needed.
Most Ashburn HOAs, including Ashburn Village and Broadlands, restrict commercial vehicle parking to designated hours and require advance notice for work on exteriors. We schedule around HOA guidelines and carry proof of insurance and background-check documentation for gate or security access.
We typically schedule Ashburn appointments within three to five business days, with flexibility for homeowners who need specific timing around work or school schedules. Every appointment is confirmed by a live person, and the technician’s name is provided before arrival under Haven Standard Clause 3: Verified Crews.
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 Ashburn Customers Say
"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."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.