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 New Braunfels Homeowners Choose Lennox Air Duct Cleaning
CleanRun Duct Repair & Cleaning provides independent New Braunfels Lennox service including air duct cleaning, with documented photo records of every duct run and written prices delivered before any work begins. We service Dave Lennox Signature Collection, Elite Series, and Merit Series systems across the I-35 corridor, from Veramendi subdivisions to historic Gruene properties, without claiming any manufacturer authorization. Our crews have cleaned hundreds of Lennox systems here since 2013, and we know how the Hill Country’s cedar pollen, attic heat, and river-corridor humidity interact with Lennox cabinet geometry in ways that generic duct cleaning misses. Call (830) 549-6847 for a free estimate.
Why Trust CleanRun Air Duct Cleaning New Braunfels for Your Lennox Air Duct Cleaning?
Tomas Reyes, our owner, learned to read ductwork at BOCES Westchester - the vocational program that taught him to treat a plenum like an X-ray, not a guess. He brought that approach to New Braunfels in 2013, and it’s why our Lennox work starts with an inspection photo, not a sales pitch. “Show the photo first. Explain what you’re looking at. Then talk about what happens next.” That’s the standard our crews follow on every Lennox job.
We know Lennox systems specifically. The SL280V’s variable-speed blower behaves differently under high static pressure than a standard PSC motor. The CH33 cased coil in a horizontal attic install collects biological film faster here than in drier markets because of the Comal River’s localized humidity. The Healthy Climate MERV 16 media on Signature and Elite air handlers loads up with Ashe juniper pollen so aggressively during December through February that restricted return airflow is a predictable spring service call, making Lennox repair in Cibolo and New Braunfels a seasonal necessity. We don’t guess at these patterns. We’ve documented them across hundreds of jobs.
Our technicians carry OEM Lennox filters, gaskets, and coil access panels for exact-fit requirements, plus quality aftermarket flex, mastic, and sealing hardware for everything else. Every crew member is background-checked and uniformed under Haven Standard Clause 3: Verified Crews. License number is published on every estimate. We are independently owned and operated, not a franchise, and we have no affiliation with Lennox Industries.
Common Lennox Air Duct Cleaning Problems We Fix in New Braunfels

- Healthy Climate MERV 16 media overloads in cedar season. The Dave Lennox Signature Collection and Elite Series air handlers equipped with Healthy Climate filtration pull extraordinary amounts of fine particulate during New Braunfels’ December-February mountain cedar season. When the media loads beyond its rated pressure drop, return airflow starves the evaporator coil and drives system static pressure past design limits. We find 0.8+ in. w.c. readings regularly on systems that left the factory spec’d for 0.5. The fix isn’t just swapping the filter - it’s inspecting the coil slab for dust bypass and verifying the flex runs haven’t collapsed under the suction.
- Cased coil biofilm growth in horizontal attic installs. Lennox CH33, CX34, and C33 coils mounted horizontally in New Braunfels attics sweat continuously from May through October. The city’s position at the Balcones Escarpment traps Gulf humidity against the Hill Country transition, and attic temperatures hit 140°F while coil pans stay cold. That temperature differential plus moisture equals biological film on the coil fins. The film sheds downstream into supply trunks, and homeowners notice musty supply air first, then the 10°F+ temperature splits between rooms. We pull the access panel, photograph the coil condition, clean with foaming cleaner and soft brushes, and treat the pan if indicated.
- Flex duct collapse and tear at Lennox plenum collars. The Merit Series and older G-series furnaces in New Braunfels tract homes - Veramendi, Forest Ridge, many Gruene-area builds - use flex duct takeoffs from sheet-metal plenums. The collar connection is a pressure point. After years of heat cycling in 140°F attics, the flex inner liner cracks at the zip-tie or draw-band, leaking conditioned air into the attic and pulling loose insulation fibers into the airstream. Our photo record shows the tear before we quote repair. We cut back to sound flex, re-terminate with a proper collar and mastic seal, and pressure-test the joint.
- Heat exchanger rust scale migration in aging G60/G40 furnaces. Lennox furnaces from the 1990s and early 2000s still running in older New Braunfels stock near downtown and the riverfronts develop rust scale on the heat exchanger cell walls. The scale breaks free, migrates through the blower section, and deposits in the return drop and blower wheel. Cleaning the ducts without addressing the blower wheel just moves the debris around. We inspect the heat exchanger with a borescope, clean the blower assembly on the truck if removable, and document the exchanger condition so the homeowner knows whether the furnace is worth keeping.
- Construction debris in new Lennox installs. New Braunfels has been among the fastest-growing US cities for over a decade. Homes in subdivisions like Veramendi and Forest Ridge, built 2015-2025 with Lennox ML180 or EL296V systems, frequently run their first cooling season with drywall dust and insulation debris still in the ductwork. The debris bypasses standard filters and embeds in coil fins. We find this on systems less than two years old. The fix is full system cleaning - evaporator coil, blower wheel, and duct runs - not just register vacuuming.
Before
AfterLennox Parts & Our Repair-vs-Replace Approach
We use OEM Lennox filters, gaskets, and coil access panels when the cabinet requires exact fit. The CH33 access panel gasket, for instance, is a specific thickness and density - aftermarket substitutes leak or whistle. For flex duct, mastic, sealing hardware, and register boots, we use quality aftermarket parts from Abatement Technologies and Guardsman. No need to overpay for a brand stamp on consumables.
On Lennox equipment past 15 years with a cracked heat exchanger or failed ECM blower module, we give homeowners a straight assessment. Clean and seal if the cabinet is sound and the repair is under half the cost of replacement. Replace if the math doesn’t work. Haven Standard Clause 1 requires the written price before work starts, so the decision is documented, not pressured. Call (830) 549-6847 and we’ll put both numbers in writing.
Our Lennox Service Process - Step by Step

- 1
Diagnosis with photo documentation. We inspect the Lennox cabinet, coil access panel, blower compartment, and representative duct runs with a borescope camera. The photo record starts here. On a Signature Collection SL280V, we also log blower RPM and static pressure at the return and supply plenums.
- 2
Written scope and price. Before any panel comes off, we deliver a written price covering exactly what we found - coil cleaning, blower service, duct sealing, or full system cleaning. Haven Standard Clause 1. No exceptions.
- 3
Service execution with equipment documentation. We clean with Rotobrush contact brushes for duct runs, Nikro negative-pressure extractors for debris removal, and manufacturer-approved foaming cleaner for Lennox coils. The equipment used is noted on the job record.
- 4
Testing and verification. We re-measure static pressure, verify temperature splits across supply registers, and pressure-test any sealed joints. On variable-speed Lennox systems, we confirm the blower ramps to design CFM without hunting.
- 5
Photo record delivery and warranty. The before-and-after photo record of every duct run, plus the coil and blower if serviced, is delivered as a standard job record. The 365-Day Done Right Promise is backed in writing on every invoice.
Lennox Products We Service & Install in New Braunfels
We service and clean ductwork on Dave Lennox Signature Collection variable-capacity systems (SL280V, SLP98V, EL296V), Elite Series two-stage and single-stage equipment (EL18XPV, EL16XC1, XC21), and Merit Series builders-grade installs (ML180, ML193, ML14XC1). We also handle Lennox gas-pack and rooftop units common in New Braunfels commercial strips along I-35 and State Highway 46, and we offer Seguin Lennox service for nearby commercial properties. Our vans stock OEM Lennox filters and access hardware for same-day completion on most service calls. For coil cleaning and duct sealing, we carry Rotobrush, Nikro, and Abatement Technologies equipment sized for residential and light commercial Lennox systems.
We Also Service These Brands

CleanRun Duct Repair & Cleaning is not a single-brand shop. We service Trane and Carrier systems with the same documentation standards - written price first, photo record on every visit, 365-Day Done Right Promise on every job. Our crews carry OEM and quality aftermarket parts for all three major brands, plus equipment from Honeywell, Aprilaire, and Guardsman for air quality and sealing work.
FAQs - Lennox Air Duct Cleaning Service in New Braunfels
No. We are an independent Lennox service provider with no affiliation or authorization from Lennox Industries. We service Lennox equipment based on hands-on experience with its cabinet design, coil geometry, and common failure modes in the New Braunfels climate, not on manufacturer certification. Our technicians are trained under the H.A.V.E.N. Standard and background-checked under Haven Standard Clause 3: Verified Crews.
Yes. The Ashe juniper pollen season from December through February produces fine particulate that loads MERV 16 media faster than manufacturer intervals suggest for milder climates. In New Braunfels, we recommend checking the filter monthly during cedar season and replacing it when the pressure drop exceeds 0.5 in. w.c., regardless of the calendar. A loaded filter starves the coil and drives up static pressure on Signature and Elite systems specifically. Call (830) 549-6847 if you’re unsure how to check pressure drop - we’ll show you on the next visit.
Usually, yes. The CH33 and CX34 have removable access panels on the coil slab face. We pull the panel, photograph the coil condition, and clean with foaming cleaner and soft brushes without disturbing the plenum duct connections. If the coil is heavily fouled with biological film - common in New Braunfels homes near the Comal River - we may recommend pulling the slab for deep cleaning on the truck. The photo record shows you the difference before we quote either approach.
Torn flex duct at the plenum collar is the most common cause on Lennox systems in New Braunfels attics. The flex inner liner cracks at the connection point after years of heat cycling, creating a suction leak that pulls attic insulation into the airstream. We find this regularly on Merit Series installs in 2000s-2010s tract homes. The repair is cut back to sound flex, re-terminate with a proper collar, and mastic seal - documented with before-and-after photos of the joint.
We use OEM Lennox filters, gaskets, and coil access panels when exact fit matters for cabinet integrity. For ductwork repairs - flex, mastic, collars, sealing hardware - we use quality aftermarket parts from Abatement Technologies and Guardsman that meet or exceed Lennox specifications without the brand markup. We document what’s used on every job record.
It depends on the heat exchanger and blower condition. On an 18-year-old G60 or G40 series, we borescope the heat exchanger first. If it’s sound and the blower module is repairable, clean and seal the system and plan for replacement in 3-5 years. If the heat exchanger is cracked or the ECM blower has failed, replacement is usually the better use of money - especially with New Braunfels summer loads coming. We put both numbers in writing under Haven Standard Clause 1 so you can decide without pressure. Call (830) 549-6847 for a free second opinion on any estimate you’ve already received.
Whole-system Lennox Air Duct Cleaning services in New Braunfels typically runs $380-$620 for a single-system residential home, depending on duct run count, coil condition, and whether sealing work is needed. Evaporator coil cleaning adds $180-$280. We deliver one flat price per system in writing before work starts - no per-vent pricing, no add-ons once the van is on your drive. Every job includes the documented photo record. Call (830) 549-6847 for an exact quote; estimates are free.
Book Your Lennox Service in New Braunfels, TX

Call (830) 549-6847 to schedule Lennox air duct cleaning, coil service, or duct sealing in New Braunfels. You’ll speak to a live person, get a background-checked uniformed crew under Haven Standard Clause 3, and receive a written price before any work begins. Every job ends with a documented photo record and the 365-Day Done Right Promise in writing. Free second opinions available on any written estimate.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving New Braunfels since 2013.




Before
After
Before
After