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.
Why Leesburg Homeowners Choose Lennox Air Duct Cleaning
CleanRun Air Duct Cleaning services in Leesburg provides independent Lennox air duct cleaning service for homeowners in Leesburg, VA, with technicians who’ve worked on thousands of Lennox systems across Northern Virginia. Our Lennox service includes full system cleaning, evaporator coil cleaning, and blower cleaning - each job starts with a written price and ends with a documented photo record of every duct run. We’re not affiliated with or authorized by Lennox; we’re an independent provider whose depth of hands-on Lennox experience is why Leesburg homeowners call us after other contractors miss the source of their airflow problems. Call (571) 487-7204.
Leesburg sits at the precise edge where Loudoun County’s famous equestrian and agricultural Piedmont meets its suburban expansion, meaning HVAC systems here draw in a uniquely heavy mixture of hay dust, agricultural particulates, and horse-related allergens from surrounding hunt-country farms. This contamination profile, largely absent in the more fully suburban communities east along Route 7 toward Ashburn and Sterling, combines with a massive stock of 2000s-era homes now hitting the 15-20 year mark and overdue for their first professional duct cleaning. Technicians working River Creek and Woodlea Manor routinely find original builder-installed flex duct systems from the early-to-mid 2000s that have never been serviced, still holding drywall dust from rapid-construction builds, and loaded with allergens drawn in from the horse pastures and hay fields that directly border some of these neighborhoods along the Potomac lowlands.
Why Trust CleanRun Air Duct Cleaning Leesburg for Your Lennox Air Duct Cleaning?
Our technicians have worked on thousands of Lennox systems across Leesburg and Northern Virginia - from older G-series furnaces to current Dave Lennox Signature Collection equipment - so we know how their cabinet geometry, coil orientations, and duct interfaces behave. The camera goes in before the quote comes out. That means the inspection camera enters every duct run first, and every recommendation gets backed by a still frame or a written measurement.
Tomas Reyes, who leads CleanRun, grew up in Queens, NY, and picked up his trade fundamentals at the Triangle Tech campus in New York before spending the better part of two decades working his way through HVAC and duct systems up and down the East Coast. For the past several years he and his crew have been the ones homeowners near Ida Lee Park call when the return grilles haven’t been pulled since the house was built. He runs CleanRun on a straightforward principle: no phantom problems, no inflated scope.
We stock Lennox-compatible OEM and high-quality aftermarket components locally - blower wheels, coil panels, gaskets - so we’re not waiting on shipping when your EL296V blower wheel is out of balance or your Merit Series slab coil needs attention. Every technician is background-checked and uniformed under Haven Standard Clause 3: Verified Crews. The 365-Day Done Right Promise applies to every Lennox job we touch in Leesburg, backed in writing, not just stated in marketing copy.
Common Lennox Air Duct Cleaning Problems We Fix in Leesburg

- Signature and Elite furnace blower wheel dust buildup. Lennox Signature (SL280V, SLP98V) and Elite (EL296V, EL180) furnaces with sealed blower compartments collect fine dust on the blower wheel, causing imbalance and reduced CFM that mimics a failing motor. In Leesburg, where spring pollen loads off the Blue Ridge are intensified by the higher Piedmont elevation, this accumulation happens faster than in flatter terrain closer to DC. We pull the blower, clean the wheel, and measure static pressure before and after.
- Slab coil biofilm and lint trapping in Merit and Elite indoor units. The slab-style evaporator coils in many Lennox Merit (ML180, ML193) and Elite indoor units trap lint and biological growth on the underside, creating musty odors and elevated static pressure. Leesburg’s humid summers accelerate this, particularly in large two-story colonials where duct runs pass through unconditioned attic spaces. We clean these coils in place with foaming agents and low-pressure rinse, then document the before and after with photos.
- Loose flex-duct collars at Lennox plenum connections. Lennox’s proprietary cabinet sizing and offset duct flanges often lead to loose flex-duct collars at the plenum, which pull in attic or crawlspace air and drive up energy bills. In Leesburg’s 2000s-era homes with original builder-grade flex duct, this is nearly universal. We seal these collars with mechanical fasteners and mastic, not tape that will fail in the next heat wave.
- Heat exchanger soot patterns in older G-series and early EL series. Older Lennox G-series and early EL series heat exchangers can develop hairline cracks near the vestibule, and the soot pattern is often visible only after the blower and coil are cleaned. We flag this during cleaning; it’s a safety issue that changes the repair-vs-replace calculation. We don’t clean past a cracked heat exchanger without documenting it and stopping to discuss options.
- Drywall dust and construction debris in never-cleaned systems. In Leesburg’s River Creek, Woodlea Manor, and Potomac Station communities, we regularly find 2000s-era Lennox systems still holding drywall dust from the original rapid-construction build. This fine particulate bypasses standard filters, embeds in blower wheels, and recirculates through slab coils. Negative-pressure extraction with Rotobrush and Nikro equipment removes what a shop vac cannot touch.
Before
AfterLennox Parts & Our Repair-vs-Replace Approach
We stock Lennox-compatible OEM and high-quality aftermarket components - blower wheels, coil panels, gaskets - and we always compare repair cost against the remaining life of the equipment. For Lennox systems under 12-15 years old with no heat-exchanger compromise, targeted repairs and a full duct and coil cleaning are usually the smarter path. For older units with cracked heat exchangers or leaking coils, we’ll say so honestly. Haven Standard Clause 1 requires a written price before any work starts, so you’ll see the repair number and the replacement number side by side before a single panel comes off. We recently cleaned a 2016 Lennox EL296V furnace in a Leesburg townhome where the homeowner complained of dust and a musty smell from the vents. After video inspection we found the Meritz-style blower wheel caked with drywall dust from a prior renovation and the slab coil fouled with biofilm; we pulled the blower, cleaned the coil in place, and sealed two loose flex-duct collars at the Lennox plenum. Static pressure dropped from 0.82 in. w.c. to 0.58 in. w.c. and the homeowner reported immediate airflow improvement at the second-floor registers. Call (571) 487-7204 for a free second opinion on any written estimate.
Our Lennox Service Process - Step by Step

- 1
Diagnosis with video inspection. We feed a camera into every duct run and photograph the blower compartment, slab coil, and plenum connections. For Lennox systems, we pay particular attention to the sealed blower compartment geometry that can hide wheel imbalance and the offset duct flanges that commonly leak.
- 2
Written scope and price. Haven Standard Clause 1: every recommendation gets a written price before work begins. You’ll see exactly what we’ll clean, what we’ll seal, and what parts we’ll replace - with still frames from your own system attached.
- 3
Cleaning and repair. We use Rotobrush and Nikro negative-pressure extraction for duct runs, Abatement Technologies HEPA filtration for containment, and manufacturer-approved foaming agents for Lennox slab coils. Blower wheels are removed and cleaned off-site when heavily fouled.
- 4
Testing and documentation. We measure static pressure at the return and supply, verify temperature split across the coil, and photograph every cleaned duct run. The documented photo record is delivered as a standard deliverable, not an extra.
- 5
Warranty and follow-up. The 365-Day Done Right Promise goes into writing. If airflow drops, odors return, or a seal fails, we make it right. No manager approval required.
Lennox Products We Service & Install in Leesburg
We service and clean the full range of Lennox residential equipment found in Leesburg homes: Dave Lennox Signature Collection (SL280V, SLP98V, and XC/XP series heat pumps and ACs); Elite Series (EL296V, EL180 furnaces and EL16XC1 air conditioners); Merit Series (ML180, ML193 furnaces and 13ACX, 14ACX air conditioners); and Lennox Healthy Climate whole-home air cleaners and media cabinets. We stock compatible blower wheels, coil panels, and gaskets for fast turnaround on common repairs. Equipment on every job includes Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman - professional-grade tools you can look up independently.
We Also Service These Brands

CleanRun technicians are multi-brand specialists, not single-brand dependent. We service Trane, Carrier, and other major residential HVAC brands with the same documented approach: camera first, written price, photo record, written warranty. Our depth on Lennox is a specialty, not a limitation.
FAQs - Lennox Air Duct Cleaning Service in Leesburg
No. We are an independent Lennox service provider and are not authorized, endorsed, or affiliated with Lennox Corporation. Our expertise comes from hands-on experience with thousands of Lennox systems across Northern Virginia, not from manufacturer certification. We service Lennox equipment using OEM-compatible and quality aftermarket parts, and we follow warranty-safe practices that do not void existing coverage. Call (571) 487-7204 if you have questions about your specific Lennox warranty terms.
Usually, yes, but the source matters. In Lennox Signature and Elite furnaces with sealed blower compartments, the musty smell often originates from the slab-style evaporator coil on the underside, where biofilm and lint accumulate in the humid Leesburg summer, not from the ducts themselves. We clean the coil in place, pull and clean the blower wheel if it’s fouled, and seal any loose plenum collars that draw in attic moisture. Duct cleaning alone won’t solve it if the coil is the source. Call (571) 487-7204 and we’ll camera-inspect to locate the origin before quoting.
It makes access more involved, not more difficult for a technician who knows the cabinet. Lennox Elite and Signature series use a sealed blower compartment with specific panel sequences and gasket placements; opening it incorrectly can damage the seal and affect combustion airflow. Our technicians have removed thousands of these compartments and reinstall them to factory tolerance. The sealed design is actually why these furnaces accumulate dust on the blower wheel - there’s no casual air leakage to self-clean the wheel - which is why we inspect it on every Leesburg job. Call (571) 487-7204 to schedule.
In Leesburg’s climate, with intensified spring pollen off the Blue Ridge and humid summers that accelerate biological growth, we recommend slab coil inspection every 2-3 years and cleaning when static pressure rises above 0.5 in. w.c. or musty odors appear. The Merit Series 13ACX and 14ACX units with slab coils are particularly prone to underside fouling because the coil sits flat and drain pan design can hold standing water. We measure and photograph the coil condition during every service so you’re not guessing. Call (571) 487-7204 for a coil inspection with written findings.
We can inspect and clean accessible surfaces, but we do not aggressively clean heat exchangers - we inspect them. Older Lennox G-series and early EL series heat exchangers can develop hairline cracks near the vestibule, and the soot pattern that reveals this is often visible only after the blower and coil are cleaned. If we find cracks, we stop and document; cleaning past that point is unsafe and we won’t do it. This is a safety limitation, not a service limitation. Call (571) 487-7204 if your G-series furnace hasn’t been inspected in several years.
Lennox cabinet geometry, coil orientation, and duct flange offsets differ enough that generic duct cleaning often misses the real problem. The sealed blower compartment on Signature and Elite series hides wheel imbalance until CFM drops. The slab coil design traps debris on the underside that upright coils don’t. The offset duct flanges at the plenum create specific leak patterns we know to check. We’ve fixed airflow problems in Leesburg Lennox systems that other contractors attributed to “just dirty ducts” when the actual issue was a loose collar at the plenum or a fouled blower wheel. The brand-specific knowledge is why the camera goes in before the quote comes out. Call (571) 487-7204 for a Lennox-specific inspection.
Lennox air duct cleaning in Leesburg typically ranges from $450 to $850 for a full system cleaning on a standard 3,000-4,000 sq ft home, depending on duct run count, blower wheel condition, and whether slab coil cleaning is required. Evaporator coil cleaning adds $180-$320. Blower wheel removal and cleaning adds $150-$250. Every price is written and agreed before work starts - Haven Standard Clause 1 - with no per-vent upselling. Call (571) 487-7204 for an exact quote; estimates are free and include the video inspection.
Book Your Lennox Service in Leesburg, VA

Call CleanRun Air Duct Cleaning Leesburg at (571) 487-7204 for independent Lennox service with a written price before work starts, a documented photo record of every duct run, and the 365-Day Done Right Promise in writing. Free second opinions on any written estimate. All calls answered by a live person.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Leesburg since 2013.




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