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.
Lennox Air Duct Cleaning in Ashburn, VA | CleanRun Air Duct Cleaning Ashburn
We provide independent Lennox service across Ashburn’s planned communities, with one difference that matters: we’ve cleaned and repaired Lennox ductwork inside hundreds of homes built during the same 1995-2012 construction wave, so we know where the fiberglass duct board fails and which flex runs collapse before we pull the attic ladder down. Our crews carry OEM-compatible Lennox parts and professional-grade Rotobrush and Nikro equipment, and every job starts with a written price before a panel comes off. Call (240) 771-1508 for a free estimate.
Why Ashburn Residents Choose Us for Lennox Service
Tomas Reyes, our owner, grew up in Queens and trained at Manhattan’s Apex Technical School before spending nearly two decades inside Northern Virginia ductwork. He and our crews have logged hundreds of jobs in Ashburn, including properties near the Loudoun Station development, where newer construction and high-density townhomes trap more construction-phase debris than homeowners expect. That background shows up in how we work: Tomas photographs every return air plenum before touching a single screw. “I’ll show you the before photo first - then we can talk about what happens next.”
We are an independent Lennox service provider, not affiliated with or authorized by Lennox. What we offer instead is documented experience. Our Lennox sales & service work covers the full product line, from Merit Series furnaces in Brambleton townhomes to Signature Series heat pumps in Ashburn Village single-families. Every technician is background-checked and uniformed under Haven Standard Clause 3: Verified Crews. Every job concludes with a Documented Photo Record of every duct run, delivered as a standard deliverable, not an upsell.
Our Ashburn service area coverage means we stock the flex duct connectors, mastic sealant, and OEM-compatible blower components that Lennox systems in this market need most. No waiting on a parts run to Sterling. No guessing whether your EL296V blower wheel will fit the aftermarket equivalent we carry.
Common Lennox Air Duct Cleaning Problems We Solve in Ashburn

- Fiberglass duct board deterioration clogging evaporator coils. Ashburn’s 1995-2012 tract homes were built with builder-grade fiberglass duct board trunks that shed glass fibers after 20+ years. Those fibers migrate straight to the Lennox evaporator coil, reducing heat transfer and forcing the compressor to run longer. We find this in roughly half the Ashburn Village homes we service.
- Collapsed flex ducts from attic heat spikes. The flexible branch ducts common in 1990s-2000s Lennox installations sag or collapse when attic temperatures climb past 130°F in July and August. One collapsed run can drop airflow to a bedroom by 40%. We repair with mastic-sealed connections, not duct tape.
- Mold growth inside flex ductwork from humidity infiltration. Ashburn’s humid Piedmont summers push moisture through cracked mastic seals into attic duct runs. Lennox flex duct with a compromised vapor barrier becomes a mold substrate. Our negative-pressure extraction system, paired with video inspection, finds it before the musty smell reaches the living room.
- Pollen accumulation on heat exchanger fins. Heavy pollen loads from Ashburn’s mixed hardwood forests and former agricultural land infiltrate return ducts, coating Lennox heat exchanger fins and reducing efficiency. The camera often shows a mat of debris where clean metal should be.
- Construction debris in newer Lennox systems. Homes near Loudoun Station and similar high-density developments frequently contain drywall dust, wood chips, and fastener debris from original construction that was never fully evacuated. The blower wheel acts like a dust collector for years.
Before
AfterLennox Service in Ashburn: What Local Conditions Mean for Your Equipment
Here’s the pattern our crews recognize in Ashburn that generic duct cleaners miss. In tightly phased subdivisions like Broadlands, every house on a given cul-de-sac was framed within the same 18-month window by the same production builder, often using identical duct layouts. The collapsed flex run we find in one attic is almost certainly replicated in the neighbor’s Lennox system. The same mastic sealant failed the same way. The same fiberglass duct board trunk is shedding fibers at the same rate.
This concentration of same-vintage, same-builder, never-cleaned ductwork is unique to Ashburn’s boom-town development pattern. Leesburg and Middleburg grew gradually, with mixed eras and custom builds. Ashburn got thousands of nearly identical systems all hitting their first serious service milestone simultaneously. For Lennox owners, that means a technician who knows the builder’s original duct layout can diagnose faster and quote more precisely. We’ve cleaned Lennox systems on entire Broadlands cul-de-sacs where every home needed the same flex duct repair at the same attic junction. The homeowner on the end got the same written price as the neighbor three doors down. No surprises. No per-vent arithmetic.
Lennox Models & Products We Service in Ashburn

We work on the full Lennox residential line, with particular familiarity for the systems installed during Ashburn’s building boom:
- Lennox Elite Series (EL296V, EL296UH) - two-stage and variable-speed furnaces common in mid-2000s Ashburn upgrades; we stock OEM-compatible blower capacitors and control boards.
- Lennox Merit Series (ML180, ML193) - builder-grade single-stage units found in original Broadlands and Brambleton construction; flex duct and duct board compatibility issues are our most frequent repair call.
- Lennox Signature Series (SL280V, SLP98V) - high-efficiency systems in Ashburn Village and newer infill; precise airflow requirements make clean ductwork critical to achieving rated AFUE.
- Lennox Dave Lennox Signature Collection (XC21, XP21) - two-stage heat pumps where pollen-clogged coils and collapsed flex runs directly impact the staging logic and compressor longevity.
We use OEM Lennox parts when available and cost-effective. For common wear items - blower capacitors, flex duct connectors, register boots - quality aftermarket equivalents often perform identically at lower cost. If your Lennox system is 15-20 years old and needs major ductwork repair, we’ll give you an honest repair-versus-replace comparison in writing, with both numbers, before any work starts. Haven Standard Clause 1: Written Price Before Work Begins.
Lennox Service Pricing in Ashburn
our Air Duct Cleaning in Ashburn typically runs $450-$850 for a complete whole-system cleaning, depending on home size, duct material, and accessibility. Flex duct repair with mastic sealing adds $180-$340 per run. Video inspection is included as a standard deliverable, not a line-item upsell.
What drives the cost: fiberglass duct board trunks take longer to clean properly than metal ductwork; collapsed flex runs require attic access and repair time; homes with more than 12 registers need additional negative-pressure extraction passes. Our written price covers the full system. No per-vent pricing. No “additional returns” surprise.
Every estimate is free and includes a written scope. Bring a competitor’s written quote and we’ll provide a Free Second Opinion, our number next to theirs. Call (240) 771-1508 for an exact quote on your Lennox system.
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 - Lennox Air Duct Cleaning in Ashburn
Every 3-5 years for homes with original fiberglass duct board or flex duct, given Ashburn’s pollen load and humidity. Homes near active construction or with pets may need more frequent service. Call (240) 771-1508 for a free inspection and we’ll show you what the camera sees.
Yes. When original mastic seals crack, moist attic air enters the flex duct’s vapor barrier. The combination of organic debris and humidity creates mold conditions we find regularly in Ashburn’s 20-30-year-old systems. Video inspection confirms it without guesswork. Ask us about Dryer Vent Cleaning - Ashburn when you call (240) 771-1508 for a free estimate.
Uneven room temperatures, whistling from registers, musty odors when the blower starts, and dust accumulation near return air grilles all indicate compromised ductwork. On Lennox variable-speed systems, you may also notice the blower running at higher stages more frequently as it compensates for duct leakage.
We use OEM Lennox parts when they are available and cost-effective. For flex duct connectors, register boots, and common wear items, quality aftermarket equivalents perform identically and cost less. We specify which we’re using in the written scope, with part numbers, before work begins.
Broadlands homes share identical duct layouts and the same 20-30 years of accumulated debris. The Lennox system your neighbor just had cleaned likely has the same flex run collapse or duct board deterioration yours does. Our field record in Broadlands lets us diagnose faster and quote precisely. Call (240) 771-1508 for a free estimate.
Service Areas Near Ashburn

We serve Lennox service in Sterling, Lennox service in Herndon, Leesburg, Reston, and Chantilly from our Ashburn base. The same documented photo record, same written pricing, same Haven Standard applies in every zip code.
Book Your Lennox Service in Ashburn Today
Call (240) 771-1508 to schedule your free Lennox ductwork estimate. A live person answers every call. We’ll send a background-checked, uniformed technician who will photograph your system before touching it, deliver a written price before starting work, and leave you with a Documented Photo Record of every duct run. Every job is backed by our 365-Day Done Right Promise.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Ashburn since 2013.




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