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 Leander Homeowners Choose Lennox Air Duct Cleaning
CleanRun Air Duct Cleaning Leander provides independent Leander Lennox service including air duct cleaning and repair throughout Leander, TX, with written upfront pricing and a documented photo record of every duct run. We are not affiliated with or authorized by Lennox; we are an independent service provider that has worked on Lennox systems in Leander since 2013, from Merit series furnaces to current Dave Lennox Signature Collection equipment. Our crews carry Lennox-compatible parts and follow manufacturer service bulletins, so we diagnose brand-specific issues correctly without dealer-network restrictions. Call (737) 252-1285 for a free estimate.
Why Trust CleanRun Air Duct Cleaning Leander for Your Lennox Air Duct Cleaning?
We’ve worked on Lennox systems in Leander for over a decade. Tomas Reyes, our owner, grew up in the Bronx and picked up his trade fundamentals at Apex Technical School in Queens before spending years on HVAC and duct systems across the Northeast. He’s spent the better part of a decade running crews throughout Leander, including jobs in Crystal Falls where cedar pollen and new-construction debris make Lennox repair in Cedar Park and surrounding areas a real conversation, not a sales pitch. He’s known for pulling the inspection camera out before quoting anything. If it doesn’t show up on screen, he doesn’t charge for it.
That approach matters with Lennox equipment because the cabinet design has specific quirks. The filter rack on many Lennox air handlers allows bypass air to slip around the filter edges, pulling unfiltered attic air and construction dust directly into the blower compartment. We’ve seen this exact pattern in dozens of Leander homes, especially in Bryson and Travisso where production builders installed systems before drywall was finished. Our technicians know the Lennox cabinet layout well enough to spot the gap without disassembling half the unit.
We stock Lennox-compatible filter racks, gaskets, and motor mounts locally, and we source quality aftermarket components for older systems where OEM parts are discontinued. Every job starts with a written price before any work begins, under Haven Standard Clause 1. No exceptions.
Common Lennox Air Duct Cleaning Problems We Fix in Leander

- Filter bypass dust accumulation in return ducts. Lennox’s cabinet design, particularly on Merit and Elite series air handlers, leaves a narrow gap between the filter rack and the cabinet wall. In Leander’s environment, where limestone caliche dust and construction debris are already abundant, this gap becomes a direct path for unfiltered air. The return duct downstream collects fine dust that should have been caught by the filter. We seal these gaps with mastic and install proper gaskets as part of our cleaning service.
- Blower motor and wheel contamination. Once dust bypasses the filter, it hits the blower wheel and motor. The wheel gets out of balance. The motor runs hotter. We’ve pulled blower wheels off Lennox EL series units in Leander homes that were caked with a quarter-inch of gray drywall dust mixed with cedar pollen. The homeowner’s complaint was always the same: weak airflow and a humming noise that wasn’t there before. We clean the wheel and housing with negative-pressure extraction, then photograph the result.
- Evaporator coil fouling. Lennox indoor coils are positioned downstream of the blower, so any dust that makes it past the filter and wheel ends up on the coil fins. In Leander, where Mountain Cedar pollen counts rank among the highest in North America from December through February, this biological load combines with construction dust to form a mat on the coil surface. The coil freezes. Cooling capacity drops. We clean coils with foaming agents and low-pressure rinsing, documented before and after.
- Flex duct collapse at plenum connections. Lennox systems in Leander’s 2005-2022 housing stock were installed with flex duct runs through unconditioned attics that exceed 140°F in summer. The heat degrades the flex duct liner. The insulation breaks down. The duct sags at the plenum connection and eventually separates, creating a pressure imbalance that shows up as hot rooms and high utility bills. We find this in tight attic spaces where the original installer had no room to work. We reseat the connections with mechanical fasteners and mastic, not tape.
- Disconnected joints and pressure loss. The rapid construction phases in Leander’s master-planned communities meant ducts were often sealed before the mastic had cured, or sealed with tape that failed within the first summer heat cycle. On Lennox systems, this shows up as insufficient return air, causing the unit to short-cycle. We pressure-test the system after cleaning to verify the duct integrity.
Before
AfterLennox Parts & Our Repair-vs-Replace Approach
We use OEM Lennox filter racks, gaskets, and motor mounts when they’re available and make sense for the system’s age. For many older systems, including discontinued CompleteHeat HM series units, we source high-quality aftermarket components that meet or exceed OEM specifications. We don’t pretend a 20-year-old Merit series furnace justifies a factory-original part with a six-week lead time.
If your Lennox unit is over 15 years old and needs major duct or component work, we give an honest assessment. Sometimes repair is the right call. Sometimes the money is better spent toward replacement. We put that in writing, with numbers, before you decide. Haven Standard Clause 1: written price before any work starts. Call (737) 252-1285 for a free estimate.
Our Lennox Service Process - Step by Step

- 1
Diagnosis with camera inspection. We insert a borescope into every accessible duct run and photograph the interior condition. On Lennox systems, we specifically inspect the filter rack gap, blower compartment, and evaporator coil access panel. The homeowner sees the images before we quote anything. Show the photo first. Then talk about what comes next.
- 2
Written scope and price. We deliver a written price for the full system cleaning, including duct sealing if needed, before any work begins. The price is per system, not per vent. No add-ons once the truck is in your driveway.
- 3
Cleaning and repair. We use Rotobrush and Nikro equipment for agitation and negative-pressure extraction, with Abatement Technologies HEPA filtration on the vacuum collection. For Lennox systems, we pay particular attention to sealing the filter rack with mastic and replacing degraded gaskets to prevent future bypass.
- 4
Testing and documentation. We run a post-cleaning pressure test and deliver the documented photo record of every duct run, before and after, as part of the standard job record. The 365-Day Done Right Promise is included in writing.
Lennox Products We Service & Install in Leander
We service and clean Lennox Merit Series (ML180, ML193, EL195E), Elite Series (EL296V, EL296E, XC20, XP20), Dave Lennox Signature Collection (SL280V, XC25, XP25), and older CompleteHeat (HM series) systems. We also service current Lennox air handlers with cased and uncased coils, including CBX32MV and CBX40UHV models common in Leander’s newer construction. Our local stock includes filter racks, gaskets, and motor mounts for the most common Elite and Merit series configurations. For coil cleaning and duct sealing on Signature Collection equipment, we use procedures that match Lennox’s cabinet specifications without requiring dealer authorization.
We Also Service These Brands

CleanRun Air Duct Cleaning Leander is not a single-brand shop. We service Trane, Carrier, and other major HVAC brands with the same documented approach: camera inspection, written price, photographed results. Our crews carry multi-brand parts and follow each manufacturer’s service bulletins. The equipment roster includes Honeywell, Aprilaire, and Guardsman air quality components for integrated system cleaning.
FAQs - Lennox Air Duct Cleaning Service in Leander
No. We are an independent Lennox service provider, not affiliated with or authorized by Lennox Industries. Our technicians have worked on Lennox systems in Leander for over a decade and follow manufacturer service bulletins, but we are not part of the Lennox dealer network. This independence means we can source both OEM and quality aftermarket parts and set our own pricing under Haven Standard Clause 1.
The filter rack on many Lennox Merit and Elite series air handlers has a design gap that allows bypass air to flow around the filter edges, pulling unfiltered attic air and dust directly into the return duct. In Leander, where caliche construction dust and cedar pollen are already abundant, this bypass accelerates dust accumulation that Air Duct Cleaning services can address. We seal these gaps with mastic and proper gaskets as part of our cleaning service.
Sometimes. If the coil is frozen due to restricted airflow from blower wheel contamination or coil fouling, cleaning can restore proper airflow and stop the freezing. We inspect the coil with a camera to determine if fouling is the cause before recommending cleaning. If the freeze-up is due to a refrigerant issue or a failed component, we’ll tell you that too. Call (737) 252-1285 and we’ll diagnose it properly.
For Leander homes with Lennox systems, we recommend inspection every three to five years, with cleaning as needed based on what the camera shows. Homes in newer subdivisions like Bryson’s active phases, where adjacent graded lots blow caliche dust through attic vents, may need Lennox Air Duct Cleaning in Brushy Creek, TX and nearby areas more frequently. The 2018 Lennox EL296V we serviced in Leander had significant debris buildup after just four years. We don’t sell schedules. We sell documented evidence of what your ducts actually contain.
We use OEM Lennox filter racks, gaskets, and motor mounts when available. For flex duct repair and sealing, we use industry-standard materials that meet or exceed OEM specifications, including mechanical fasteners and mastic rated for attic temperatures exceeding 140°F. For discontinued systems like the CompleteHeat HM series, quality aftermarket components are often the only practical option.
Expect about three to four hours for a typical single-system home. We photograph every duct run before and after, clean the blower wheel and housing, inspect and clean the evaporator coil if accessible, seal any filter rack gaps with mastic, and pressure-test the system. You receive the documented photo record as a standard deliverable. The 365-Day Done Right Promise applies in writing.
A full residential duct cleaning for a Lennox system in Leander typically runs between $450 and $750 for a single system, depending on the number of duct runs, accessibility, and whether evaporator coil cleaning or duct sealing is needed. We deliver a written price before any work starts, per system, not per vent. No add-ons. Call (737) 252-1285 for an exact quote - estimates are free.
Book Your Lennox Service in Leander, TX

Call (737) 252-1285 to schedule a free estimate. A live person answers, 24/7. We’ll send a background-checked, uniformed technician who will inspect your Lennox system with a camera, show you what we find, and deliver a written price before any work begins. Every job includes a documented photo record and the 365-Day Done Right Promise, backed in writing.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Leander, serving Leander since 2013.




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