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 Austin Homeowners Choose Lennox Air Duct Cleaning
CleanRun provides independent Air Duct Cleaning services, Lennox repair, and evaporator coil service throughout Austin, with written pricing before any work starts and a documented photo record of every duct run. We are not a Lennox dealer or warranty-authorized representative; we are an independent duct-cleaning outfit that has worked on Lennox systems since the Dave Lennox Signature Collection era, and we service what we find without upselling equipment you don’t need. Call (737) 243-9544 for a free estimate.
Austin’s combination of mountain cedar pollen, slab-foundation attic ductwork, and seven-month cooling seasons creates a specific contamination pattern inside Lennox air handlers. The tight coil enclosures on variable-speed Elite and Signature units trap debris that standard filter changes never reach, while attic heat cycling degrades flex duct connections in the tract-home stock built during the 1990s and 2000s boom. We’ve cleaned Lennox systems in Hyde Park bungalows with original metal ductwork, provided Lennox Air Duct Cleaning in Jollyville, TX, and worked in Pflugerville subdivisions where flex duct has partially collapsed at collar connections after twenty years of radiant attic heat.
Why Trust CleanRun Air Duct Cleaning Austin for Your Lennox Air Duct Cleaning?
Tomas Reyes, our owner and lead technician, learned the trade through the HVAC program at Bronx Community College and spent nearly a decade on commercial and residential duct work across the Northeast before relocating the operation to Austin. He’s logged hundreds of Lennox air handlers in Travis and Williamson counties, from CompleteHeat cabinets still running in East Austin to new SLP98V installations in Wells Branch and Lennox Air Duct Cleaning in Lost Creek, TX. His standard practice is to pull a camera scope before quoting anything - customers see what’s actually sitting in the plenum, not a verbal estimate built on square footage guesswork.
Our technicians read a Lennox cabinet serial tag and know what’s behind it. A Merit ML196 carries a different coil geometry than an Elite EL296V, and the Signature SL280V’s variable-speed blower requires specific negative-pressure calibration during duct cleaning to avoid throwing the ECM motor out of its torque map. We stock OEM-spec Lennox filters, drain pans, and coil-compatible gaskets for jobs where exact fit matters, and we use Rotobrush, Nikro, and Abatement Technologies equipment that we name on every quote so you can verify specifications independently.
Every job operates under the H.A.V.E.N. Standard. Haven Standard Clause 1 requires a written price before any work begins - no exceptions. Haven Standard Clause 3, Verified Crews, means background-checked, uniformed technicians identified by name before arrival. The 365-Day Done Right Promise is backed in writing on every job, not stated as marketing copy and forgotten.
Common Lennox Air Duct Cleaning Problems We Fix in Austin

- Return-side static pressure spikes in Merit and Elite air handlers. Lennox ML180, ML196, and EL296V units with high-MERV media or pleated filters load up faster in Austin because the cooling season runs April through October with near-constant airflow. When the return is restricted, the evaporator coil starves for air and ices over. We measure static pressure across the filter and coil, clean the return trunk with negative-pressure extraction, and verify the pressure drop returns to manufacturer spec before we leave.
- Dirty evaporator coils on variable-speed and two-stage units. The SL280V, SLP98V, and EL296V cabinets have tight coil enclosures that trap dust, cottonwood seed, and cedar pollen where a homeowner cannot see or brush. In July and August we’ve pulled gray felt mats off these coils that measured three-quarters of an inch thick. The coil is washed in place after blower removal, with the drain pan scoped and cleared of algae.
- Slab coil condensate management failures. Lennox horizontal slab coils in attic installations collect algae and biofilm in the drain pan during Austin’s humid spring storm cycles. The biological growth seeds odors through the supply trunks that smell like wet cardboard or worse. We clean the pan, treat the condensate line, and verify gravity drainage or pump operation before sealing the cabinet.
- Duct leakage at Lennox takeoffs and plenum transitions. Mastic and foil-tape joints dry out and separate after 10-15 years of Central Texas attic heat cycling. We find this constantly in 1990s and 2000s tract homes in Cedar Park and Wells Branch. The system loses conditioned air into the attic, the blower works harder to maintain setpoint, and energy bills climb. We seal with fresh mastic and mechanical fasteners where the original joint has failed.
- Collapsed or separated flex duct in attic runs. The flexible ductwork routed through attics in Austin’s rapid-growth subdivisions degrades from repeated exposure to 140°F+ summer temperatures. A cleaning call on a Lennox system in Pflugerville or Round Rock often reveals flex that has pulled apart at the collar or sagged into a U-trap that collects condensation and debris. We document the damage with photos and repair before cleaning, or we tell you honestly if an HVAC contractor needs to handle a full replacement.
Before
AfterLennox Parts & Our Repair-vs-Replace Approach
We use OEM-spec Lennox filters, drain pans, and coil-compatible gaskets when the exact fit matters for cabinet seal and airflow geometry. For flex duct, mastic, and register boots we use quality aftermarket materials - no markup games, no brand-tax pricing. If a Lennox coil is fouled but structurally sound, we clean it. If the cabinet is rusted through or the coil is leaking refrigerant, we tell you to call an HVAC contractor, not us. That’s Haven Standard Clause 1 in practice: the written price covers what we can actually deliver, and we don’t take money for work outside our scope.
A Free Second Opinion on any written estimate is available at no cost. Bring a competitor’s quote and we’ll put our number next to it in writing. Call (737) 243-9544 to schedule.
Our Lennox Service Process - Step by Step

- 1
Diagnosis with video inspection. We scope the return trunk, supply branches, evaporator coil, and blower compartment before quoting. On Lennox variable-speed units we also record blower RPM and static pressure to establish a baseline. The customer sees the images before any price is discussed.
- 2
Written scope and price. Haven Standard Clause 1: every line item is listed with labor, materials, and equipment named - Rotobrush, Nikro, or Abatement Technologies as applicable. No work begins until the customer has the signed scope in hand.
- 3
Cleaning and repair execution. Negative-pressure extraction on every duct run. Coil cleaning with appropriate chemistry for aluminum fins. Duct sealing with mastic at failed joints. Blower removal and cleaning when the cabinet design allows access. Every step is photographed.
- 4
Testing and documentation. Static pressure rechecked against the opening readings. Temperature split verified. Condensate flow tested. The Documented Photo Record - before and after images of every duct run - is delivered as a standard job record before the crew leaves.
- 5
Warranty registration. The 365-Day Done Right Promise is printed, signed, and left with the customer. If the work is not right, we make it right. The promise is backed in writing, not subject to manager approval.
Lennox Products We Service & Install in Austin
We clean and service Dave Lennox Signature Collection units including the SL280V variable-speed furnace, SLP98V modulating gas furnace, and XC25/XP25 outdoor heat pumps and air conditioners. We work on Lennox Elite Series equipment: EL296V two-stage furnace, XC21 and XP21 outdoor units. We service Lennox Merit Series systems: ML180 and ML196 single-stage furnaces, EL296 two-stage, and 14ACX/13ACX air conditioners. We also encounter older Lennox CompleteHeat, GSR, and G24 cabinets still operating in East Austin and Hyde Park pier-and-beam homes, and we clean the ductwork connected to them.
We stock OEM-spec filters and drain pans for current Merit and Elite series, and we carry coil-compatible gaskets for Signature cabinet rebuilds after cleaning.
We Also Service These Brands

CleanRun’s crew is multi-brand capable. We clean and repair ductwork on Trane and Carrier systems with equal documentation standards, and we’ve serviced Rheem, Goodman, and American Standard equipment across Austin’s full housing stock. The H.A.V.E.N. Standard and the 365-Day Done Right Promise apply regardless of manufacturer.
FAQs - Lennox Air Duct Cleaning Service in Austin
No. CleanRun is an independent, locally owned duct-cleaning company with no dealer agreement, warranty authorization, or financial relationship with Lennox. We service Lennox equipment as independent technicians, and we do not represent the manufacturer. Our expertise comes from field hours on Lennox systems in Austin, not from factory certification.
No, provided the work is performed without altering factory wiring, refrigerant circuits, or cabinet structural components. We clean coils, blowers, and drain pans using methods that do not disturb sealed refrigerant systems. If we find a refrigerant leak or electrical fault during cleaning, we stop and refer you to a licensed HVAC contractor rather than risk warranty exposure.
The SL280V’s variable-speed blower and tight coil enclosure trap moisture and organic debris on the evaporator coil and in the drain pan, where a standard filter change cannot reach. Austin’s humid spring storms accelerate algae growth in the pan. The smell is biological, not filtered. We scope the coil and pan, clean both, and verify condensate drainage. Call (737) 243-9544 for an exact quote - estimates are free.
Yes, with calibrated negative-pressure extraction that accounts for the ECM motor’s torque mapping. Variable-speed blowers modulate based on static pressure, and aggressive duct cleaning without pressure monitoring can throw the system into fault mode. We record baseline static and RPM before starting, and we verify normal operation before leaving.
Short-cycling after cleaning usually indicates a pre-existing restriction that was masking another fault, or a displaced limit switch during blower access. We return immediately under the 365-Day Done Right Promise to diagnose. In most cases the root cause is a dirty flame sensor or a failing limit switch that the restricted airflow had been keeping within tolerance. We document what we find and correct it at no charge if it’s related to our work.
We stock OEM-spec filters and drain pans for current Merit and Elite series, and coil-compatible gaskets for Signature cabinet reassembly. For discontinued CompleteHeat and GSR series, we source quality aftermarket equivalents with matching dimensions and pressure-drop specifications. We name the manufacturer on every quote so you can verify independently.
Whole-system duct cleaning for a typical Austin home needing Lennox repair in Austin runs $450-$780, depending on the number of duct runs, accessibility, and whether evaporator coil cleaning or duct sealing is included. Coil cleaning adds $180-$320. Duct sealing with mastic at failed joints adds $150-$280. We deliver a written line-item price before any work starts, every time. Call (737) 243-9544 for an exact quote - estimates are free.
Book Your Lennox Service in Austin, TX

Call (737) 243-9544 to speak with a live person and schedule your free estimate. We’ll scope your Lennox system, show you what’s actually inside the ductwork and coil enclosure, and deliver a written price before any work begins. Every job includes a Documented Photo Record and is backed by the 365-Day Done Right Promise.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Austin since 2013.




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