Lennox Air Duct Cleaning Service Nationwide

Why Schertz Homeowners Choose Lennox Air Duct Cleaning

CleanRun Air Duct Cleaning services in Schertz provides independent Lennox air duct cleaning, repair, and full-system service for homeowners in Schertz, TX. We are not a Lennox dealer or authorized service provider. Our crews work on Lennox Signature, Elite, Merit, and legacy G-Series equipment with OEM-compatible parts and warranty-safe practices, and every job starts with a written price before any panel comes off. Call (830) 402-5110.

Call (830) 402-5110

Our Schertz Lennox service covers systems installed during the 1998-2012 building boom, when Lennox was a common spec brand in subdivisions along Roy Richard Drive and the FM 78 corridor. Those units are now fifteen to twenty-five years old. The flex-duct runs in unconditioned attics, the slab-style evaporator coils, and the high-efficiency secondary heat exchangers in newer Lennox furnaces each develop contamination patterns we can predict by model line and neighborhood age. That specificity matters because a generic duct cleaning leaves the actual problem untouched.

We document everything. Every duct run, every coil face, every plenum collar. You get the photo record before we pack up.

Why Trust CleanRun Air Duct Cleaning Schertz for Your Lennox Air Duct Cleaning?

Tomas Reyes, our owner and lead technician, started in this trade at Apex Technical School in Long Island City and spent the better part of two decades pulling flex duct, cleaning plenums, and documenting what actually lives inside residential HVAC systems before bringing that practice to Schertz. He and our crews have worked the area long enough to recognize the regional build patterns: the undersized return ducts that pull attic dust past seams at higher velocity, the delaminating inner duct liner shedding fiberglass after two decades in 150°F attics, the construction debris from nearby new builds that mats Lennox coils inside of five years.

We know Lennox cabinet geometry. The Signature Series SL280V and SLP98V position their secondary heat exchangers where fine dust collects on the upstream coil face, mimicking a blower wheel problem. The Elite Series EL296V uses the same coil placement. The Merit Series ML180 and ML193 furnaces, common in entry-level Schertz builds from the early 2000s, have slotted return-air panels that let unfiltered bypass air coat the blower motor with a sticky mat of drywall dust and pet hair. We have cleaned enough of these to spot the pattern in the first two minutes of a video inspection.

Our parts approach is straightforward. OEM-equivalent Lennox filter media and door gaskets when available. Quality aftermarket mastic, flex duct, and foil tape for sealing and repair. Most Lennox duct components are standard-sized and do not require a dealer part. If the coil fins crumble or the heat exchanger shows cracks, we tell you replacement is the safer call. Haven Standard Clause 1: written price before work starts, every time. Haven Standard Clause 3: verified, background-checked, uniformed crews.

The before photo does the talking. We just bring the camera.

Common Lennox Air Duct Cleaning Problems We Fix in Schertz

• Secondary heat exchanger dust loading on Signature and Elite furnaces. The SL280V, SLP98V, and EL296V route return air across a high-efficiency secondary heat exchanger before it reaches the blower. Fine dust and lint accumulate on the upstream coil face, reducing static pressure and making the system behave like it has a dirty blower wheel. Homeowners replace filters repeatedly. The real problem is upstream of the filter. We clean the coil face and document the pressure drop before and after.
• Slab-style evaporator coil contamination in Merit and Elite air handlers. Lennox uses slab-style coils in many ML193, EL180, and EL195 air handlers. The underside traps dust where homeowners never see it. Eventually the coil ices over and water overflows the pan. We see this in Schertz homes near new construction where fine drywall dust loads the system for the first three years of occupancy. Our full system cleaning includes coil face access and negative-pressure extraction of the debris mat.
• Flex-duct sag and kink at the plenum collar. Lennox flex-duct runs installed in attics above Schertz garages often sag where the inner duct liner delaminates after years of heat cycling. The kink starves specific rooms while the main trunk stays clean. We find this in homes off Roy Richard Drive and along the Purple Heart Trail corridor. Video inspection shows the restriction. We replace the damaged flex section and seal the collar with mastic.
• Unfiltered bypass air through G-Series slotted return panels. The G60, G40, and G50 furnaces common in older Schertz homes use slotted return-air panels that do not seal tightly against the filter rack. Air bypasses the filter entirely, coating the blower motor and wheel with a sticky composite of drywall dust, pet hair, and cooking grease. Cleaning the blower assembly fixes the symptom. Sealing the panel gaps with gasket material fixes the cause.
• Return duct separation pulling attic contamination. In subdivisions along FM 78 and Seguin Road, regional HVAC subcontractors ran undersized return ducts to save material. The restricted return pulls attic dust past duct seams at higher velocity than the system was designed for. Lennox equipment runs fine. The ductwork fails around it. We seal the seams, resize the return where needed, and document the improvement in static pressure.

Before

After

Lennox Parts & Our Repair-vs-Replace Approach

We stock OEM-equivalent Lennox filter media and cabinet door gaskets locally for fast turnaround on common Signature, Elite, and Merit series units. For sealing and repair work, we use quality aftermarket mastic, flex duct, and foil tape. Most Lennox duct components are standard-sized. They do not require a dealer part, and we do not markup items you could verify yourself.

The repair-vs-replace decision is based on what we measure, not on a sales target. If the evaporator coil fins crumble during cleaning, the coil is done. If the heat exchanger shows cracks on our borescope inspection, replacement is the only safe call. We will show you the photo and explain the numbers. Haven Standard Clause 1 applies: written price before any work starts, even if that price is for a recommendation to replace rather than clean.

Call (830) 402-5110 for a free estimate. We will put our number next to any competitor’s written quote under our Free Second Opinion policy.

Our Lennox Service Process - Step by Step

1. 1
   Diagnosis with video inspection. We insert a borescope camera into every accessible duct run, the plenum, and the coil face. On Lennox systems, we pay specific attention to the secondary heat exchanger upstream face on Signature and Elite furnaces, and the underside of slab-style coils in Merit and Elite air handlers. You watch the feed in real time.
2. 2
   Written scope and price. We deliver a written price before any work begins, itemized by task: full system cleaning, evaporator coil cleaning, duct repair and sealing, or air quality treatment. No per-vent pricing. One flat price per system. Haven Standard Clause 1.
3. 3
   Cleaning and repair with documented photo record. We use Rotobrush and Nikro negative-pressure extraction equipment, Abatement Technologies HEPA filtration, and Guardsman protective materials. Every duct run is photographed before and after. The photo record is included as a standard deliverable, not an extra.
4. 4
   Testing and verification. We measure static pressure across the Lennox coil before and after cleaning. We verify room-to-room airflow with a digital anemometer. If we sealed ductwork, we pressure-test the seams.
5. 5
   Warranty documentation. The 365-Day Done Right Promise is backed in writing on every job. The photo record, the written scope, and the warranty document are delivered to you before we leave. If the work is not right, we make it right.

Lennox Products We Service & Install in Schertz

We provide Universal City Lennox service too, and clean Signature Series variable-capacity furnaces including the SL280V and SLP98V, and the EL296V high-efficiency model. Elite Series equipment covers the EL180 and EL195 furnaces with their XC and XP condenser pairings. Merit Series work includes the ML180, ML193, and 14ACX air conditioners common in builder-grade Schertz homes from the 2000s. We also maintain legacy G-Series furnaces: G60, G40, and G50 units still running in older neighborhoods.

Our equipment roster includes Rotobrush mechanical agitation systems, Nikro negative-pressure extractors, Abatement Technologies HEPA air scrubbers, and Honeywell, Aprilaire, and Guardsman filtration and protective products. You can verify each manufacturer independently.

We Also Service These Brands

CleanRun Air Duct Cleaning Schertz is not limited to Lennox. We service Trane and Carrier systems with the same model-specific knowledge, the same video inspection protocol, and the same written pricing standard. Multi-brand capability means our recommendations are based on your system’s condition, not on a dealer agreement.

FAQs - Lennox Air Duct Cleaning Service in Schertz

Is CleanRun Air Duct Cleaning Schertz authorized by Lennox?

No. We are an independent duct-cleaning and HVAC-accessory company, not a Lennox dealer or authorized service provider. Our technicians have worked on thousands of Lennox systems across Schertz, and we use OEM-compatible parts and warranty-safe practices, but we have no formal affiliation with Lennox Industries. Our recommendations are based on what we measure in your system.

Do you use genuine Lennox/OEM parts?

We use OEM-equivalent Lennox filter media and door gaskets when available. For sealing, repair, and flex-duct replacement, we use quality aftermarket mastic, foil tape, and duct board that meet or exceed original specifications. Most Lennox duct components are standard-sized and do not require a dealer part. We will specify what category each part falls into on your written scope.

How long does Lennox service take?

A full system cleaning on a typical Lennox residential furnace and coil runs three to four hours, including video inspection, cleaning, sealing, and documentation. Larger homes with extensive flex-duct runs, or systems requiring evaporator coil removal, take longer. We do not charge by the hour. The written price covers the complete scope. Call (830) 402-5110 to schedule.

What Lennox models/series do you cover?

Signature Series: SL280V, SLP98V, EL296V. Elite Series: EL180, EL195, XC/XP condensers. Merit Series: ML180, ML193, 14ACX. Legacy G-Series: G60, G40, G50 furnaces. If your model is not listed, call us. We have likely worked on it.

Will service void my Lennox warranty?

Proper duct cleaning and coil maintenance performed by qualified technicians does not void a Lennox manufacturer’s warranty. We use non-invasive access methods, avoid coil fin damage, and document our work. What can void warranty is unqualified service that damages components. Our 365-Day Done Right Promise and documented photo record protect both of us. If you have a specific warranty concern, we will review your documentation before starting work.

How much does Lennox air duct cleaning cost in Schertz?

Whole-system duct cleaning for a typical Lennox residential system in Schertz ranges from $380 to $620, depending on system size, accessibility, and whether evaporator coil cleaning or duct sealing is included. We do not quote per-vent prices or teaser rates. One flat price per system, agreed in writing before work starts. Call (830) 402-5110 for an exact quote. Estimates are free.

Book Your Lennox Service in Schertz, TX

Call (830) 402-5110 to speak with a live person and schedule your Lennox system evaluation. We serve homes throughout Schertz and nearby areas, from newer builds off Roy Richard Drive to older neighborhoods near the Cessna T-41A Mescalero display at the Schertz Veterans Memorial Plaza, and we also handle Lennox repair in Cibolo. Every job includes a written price before work starts, a documented photo record of every duct run, and our 365-Day Done Right Promise backed in writing. Free Second Opinion available on any competitor’s written estimate.

Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Schertz since 2013.