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 Arlington, VA | CleanRun Air Duct Cleaning Alexandria
Independent Lennox air duct cleaning across Arlington typically runs $380-$620 for a complete residential system, with most jobs scheduled within a week. The one thing that makes our Lennox work here different: Arlington’s post-WWII housing stock was built without ductwork, so the retrofitted Lennox systems we service sit in crawl spaces and soffits that were never designed for them. That changes what “cleaning” means. Call Arlington service area at (240) 318-7712 for a written estimate before any work starts.
Why Arlington Residents Choose Us for Lennox Service
We’ve worked on Lennox equipment in Arlington since 2013. Not because a factory certificate hangs in our office, but because the county’s housing stock keeps producing the same problems, and we’ve learned how to read them.
Tomas Reyes, our owner, grew up in Queens and trained at Apex Technical School in Long Island City before spending two decades on mid-Atlantic duct systems. He’s the one who taught our crew to pull the access panel first, photograph what’s inside, and let the customer see it before a single tool leaves the van for our Air Duct Cleaning in Arlington. In Arlington’s Barcroft and Aurora Highlands neighborhoods, that habit matters more than most places. The duct doesn’t lie - we just show you what’s in it.
We’re an independent service provider, not a Lennox-authorized dealer. That distinction matters for transparency: we have no factory quota to hit, no incentive to sell you a new unit when sealing and cleaning will do, and no restriction on using aftermarket parts where they outperform OEM for the specific failure we’re looking at. Our technicians carry OEM Lennox coils, blower assemblies, and cabinet components for fit-critical replacements, plus high-grade aftermarket flex duct, mastic, and insulation for the consumable work.
Every job starts with a written price under Haven Standard Clause 1. Every duct run is photographed before and after. The 365-Day Done Right Promise is in writing, not a verbal assurance. Background-checked, uniformed crews. License number published where you can find it. Equipment from Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman - names you can verify yourself.
Common Lennox Air Duct Cleaning Problems We Solve in Arlington

- Kinked or collapsed flex duct from 1970s-80s retrofits. The brick ranchers off Columbia Pike were never built for forced air. Lennox flex duct installed during retrofit was squeezed through crawl spaces too low to stand in, and decades of settling have kinked or partially collapsed runs. Airflow chokes. Debris traps where it wouldn’t in purpose-built systems. We find this on video inspection, replace the failed sections, and reinsulate.
- Coil and cabinet condensation during Arlington’s summer humidity. July and August dewpoints of 70-75°F in the Potomac lowlands push moisture into under-insulated crawl-space supply trunks. Lennox air handlers in these conditions grow mold on coils and cabinet interiors that a surface wipe won’t touch. We clean with negative-pressure extraction and treat with EPA-registered sanitizer where the photo record shows colonization.
- Blower and evaporator coil fouling from improvised return chases. When central air was retrofitted into 1940s-60s Cape Cods and colonials, return ducts were often run through closets and soffits never designed as air pathways. Construction dust, pollen, and attic insulation pull through into Lennox blower assemblies and coat the evaporator coil. We remove the blower for cleaning and photograph the coil condition through the access panel.
- Cabinet and mastic sealant failure. Original installation mastic on Lennox systems from the 1980s-90s has dried and cracked, letting humid crawl-space air infiltrate the supply path. We scrape failed mastic, reseal joints and cabinet seams, and verify with smoke pencil or pressure test.
- Short-cycling from airflow restriction. The combination of kinked flex duct, dirty coils, and return-side leaks drops airflow below Lennox’s minimum spec. The system short-cycles, runs inefficiently, and fails prematurely. Cleaning and sealing often restore proper operation without hardware replacement.
Before
AfterLennox Service in Arlington: What Local Conditions Mean for Your Equipment
Arlington’s post-WWII brick ranchers along Columbia Pike were built with oil-fired radiant heat and no ductwork at all. The Lennox forced-air systems now in them were retrofitted in the 1970s and 1980s, with flex duct run through uninsulated, perpetually damp crawl spaces that drive condensation and flex-duct collapse. That service profile does not exist in neighboring Fairfax or Alexandria, where much of the housing stock was built with designed duct chases from the start.
For Lennox owners, this means three things. First, “duct cleaning” here is rarely just cleaning - it’s a duct-integrity assessment once we get under the house. Second, the humidity load on Lennox coils and cabinets is higher than the equipment was originally sized for, accelerating fouling. Third, the Pentagon and defense-contractor demographic that dominates Arlington’s population expects documented, third-party-verifiable results - which is exactly why we deliver a photo record of every run, not a verbal report. We’ve served this market since 2013, and the expectation for evidence has only grown.
Lennox Models & Products We Service in Arlington

We work on the full Lennox residential and light-commercial line found in Arlington’s housing stock.
The Lennox Merit Series - high-volume builder-grade - shows up constantly in post-WWII retrofits and mid-century garden apartments. Simple cabinets, single-speed blowers, and the flex-duct compatibility issues we described above.
The Lennox Elite Series with variable-speed blowers appears in the 1980s-2000s condos along the Rosslyn-Ballston corridor. These need more careful blower cleaning; the variable-speed drive doesn’t tolerate coil fouling the way a single-speed motor might.
The Lennox Dave Lennox Signature Collection - high-efficiency systems installed during 2000s-2010s upgrades in Barcroft and Aurora Highlands. Tighter cabinets, more complex coil geometry, and stricter airflow requirements that make duct integrity critical.
We also service Lennox complete system packages - furnace, coil, and air handler combinations - common in retrofitted Cape Cods and colonials where the original oil boiler was swapped for gas forced air.
OEM parts for coils, blowers, and cabinet components are our first line where fit tolerance matters. Aftermarket for flex duct, mastic, insulation, and other consumables. If your Lennox air handler is past 15 years with a failed heat exchanger or compressor, we’ll run the repair-versus-replace numbers honestly.
Lennox Service Pricing in Arlington
| Service | Typical Range |
|---|---|
| Complete residential duct cleaning (single system) | $380-$620 |
| Video inspection with written report | $95-$150 (waived with cleaning) |
| Flex duct repair/replacement (per section) | $180-$340 |
| Duct sealing with mastic (whole system) | $450-$780 |
| Air handler coil and blower cleaning | $280-$450 |
What drives cost: system accessibility (crawl space versus basement), number of duct runs, condition of existing flex duct, and whether mold treatment is indicated by the photo record. Every estimate includes the full scope in writing before work begins - Haven Standard Clause 1. No per-vent pricing. No coupon that balloons once we’re on site. Call (240) 318-7712 for an exact quote; estimates are free.
Serving Arlington, VA - Our Local Coverage Area

We’re based in the Arlington 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 Arlington
Expect that your ductwork was retrofitted, not designed in. We’ll likely find flex duct squeezed through crawl spaces and soffits, possibly kinked or partially collapsed, with original mastic that’s dried and cracked. Our process starts with video inspection of every run, then documented cleaning and Dryer Vent Cleaning - Arlington where needed, then repair of any integrity issues we find. The photo record shows you what was there and what we did. Call (240) 318-7712 to schedule; estimates are free.
Arlington sits in the Potomac River lowlands with sustained July-August dewpoints of 70-75°F, and the post-WWII housing stock has under-insulated crawl spaces that never dry out. Lennox supply trunks in these conditions run below the dewpoint for weeks at a time, creating surface condensation that supports mold colonization. It’s a genuine mechanical consequence of local geography and housing age, not a sales pitch. We treat it with cleaning, drying, and reinsulation where the photo record confirms growth.
It’s a different job. Fan-coil units in Arlington’s 1980s-2000s high-rises along the Metro corridor typically use hydronic heating and cooling with minimal ductwork - often just a short flex run to a ceiling diffuser. We service the accessible duct sections and can clean coils and blowers within the unit, but full “duct cleaning” doesn’t apply the way it does in a single-family home with a basement air handler and trunk-and-branch system. We’ll tell you honestly whether your building’s configuration justifies a service call or if maintenance falls to the building engineer.
OEM for coils, blower assemblies, and cabinet components where dimensional fit matters. Aftermarket for flex duct, mastic, insulation, and other consumables - often superior for the specific retrofit conditions we find in Arlington crawl spaces. We stock both locally for fast turnaround, and we specify what’s going in before any work starts. Haven Standard Clause 1: written price, written scope, no surprises.
No. Duct cleaning, sealing, and flex-duct repair are not factory-warranty services; they’re maintenance and restoration work that any qualified technician can perform. Our independence means no factory incentive to sell you equipment you don’t need. We’ve logged thousands of hours on Lennox systems across Arlington because the county’s housing stock keeps producing the same problems, not because a badge requires it. If your system is under factory warranty, we document our work so warranty claims remain valid, and we flag any issues that should go to your installing dealer.
Service Areas Near Arlington

We run Lennox sales & service throughout Northern Virginia. Near Arlington, our regular routes include Lennox service in Alexandria - including the Del Ray neighborhood where Tomas Reyes has handled colonial-era flex-duct pinching for years - and Lennox service in Springfield, plus Falls Church, Washington, and McLean. The same crew, same equipment roster, same written-price standard.
Book Your Lennox Service in Arlington Today
Call (240) 318-7712. A live person answers. We’ll schedule a free estimate, deliver a written price before any work starts, and leave you with a documented photo record of every duct run. The 365-Day Done Right Promise applies in writing. Haven Standard Clause 3: Verified Crews. Background-checked, uniformed, identified by name before arrival.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Alexandria, serving Arlington since 2013.




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