Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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
We provide independent Lennox repair in Austin, including air duct cleaning and sealing, and the work is built around one thing: knowing how Lennox systems actually behave in Central Texas conditions. That means we clean the full duct run, inspect the air handler and coil, and seal every takeoff collar, because a Lennox system is only as clean as its dirtiest connection. We’re not an authorized Lennox dealer, and we’ll say that plainly, but our techs have worked on enough Merit, Elite, and Signature units across this city to know exactly where they fail and why. Call (940) 461-7203 for a written quote before any work begins.
Why Trust Linden Air Duct Austin for Your Lennox Air Duct Cleaning?
Marcus Veale grew up in the San Fernando Valley before planting his work boots in Central Texas, and he learned HVAC fundamentals at Los Angeles Trade-Technical College. Since narrowing his focus to duct cleaning, he has walked every job start to finish himself: scoping the system, explaining what he finds before anyone touches a panel, and not leaving until airflow tests where it should. That carries into every Lennox job we take in Austin.
Lennox builds tight, efficient systems. Tight systems punish sloppy duct work. The Signature SL28XCV moves a lot of air at low static pressure, and if a return flex run has collapsed or a takeoff collar has loosened, the blower pulls attic air through the gap and redistributes it through the supply. Our techs check static pressure on every Lennox in Georgetown or Austin job, not just the visible duct openings. We know which Lennox air handlers hide flex-duct rot, which return plenums cake up fastest in cedar season, and which condenser coil designs trap cottonwood fuzz between the fins. We use Rotobrush and Nikro negative-pressure extraction equipment, and we replace failed duct components with ASTM-rated materials that match Lennox’s static pressure specs. Every job gets a written price before work begins, every repair carries a written guarantee with a free second visit if it fails, and every tech arrives background-checked, identity-verified, photo-badged, and introduced to you by name and photo before the visit.
Styles & brands we work with
Common Lennox Air Duct Cleaning Problems We Fix in Austin
- Elite EL18 evaporator coil micro-leaks. The hairpin bends on EL18 coils are a known weak point. When refrigerant escapes, it can mist into the airstream and leave a greasy film on return ducts, which then attracts Austin’s limestone dust and pollen like a magnet. We clean the coil, verify the leak is not active, and coat the duct interior so it stops holding that film.
- Signature SL28XCV supply plenum back-drafting. Cracks near the manifold welds on these heat exchangers can push combustion byproducts into the supply plenum when the blower ramps down. It’s a safety issue first, a duct problem second. If we find soot or staining in the supply side of a Signature unit, we stop and recommend a heat exchanger inspection before any duct cleaning proceeds.
- Merit ML14 blower wheel dust imbalance. Fine talc-like dust from Texas limestone soil builds up on ML14 blower wheels, and once the wheel gets unbalanced, it shakes the duct connections loose at the takeoff collars. That means air leaks, more dust infiltration, and a rattle that sounds like the unit is coming apart. We remove the blower wheel, clean it, and re-secure every takeoff collar with mastic.
- iComfort thermostat false ‘Check Filter/Coil’ alerts. Lennox iComfort systems often trigger this alert with a perfectly clean filter. The real culprit is usually a clogged condensate trap in the air handler. Homeowners call us thinking they need duct cleaning when they actually need a trap flush and a drain line clearing. We fix the real problem and show you the difference.
- Return flex duct inner liner separation. Austin’s attic heat cooks the adhesive that bonds flex duct liners to their wire helix. Once the liner separates, attic insulation gets pulled into the return stream and the blower ingests it. We see this constantly in Hyde Park bungalows, Mueller builds, and everywhere else the attic hits 130 degrees in August.
Lennox Parts & Our Repair-vs-Replace Approach
On a Lennox system, some components are worth cleaning and some are worth replacing, and we’ll tell you which is which before you spend a dollar. For lint-trapping flex duct, crushed metal duct, or failed takeoff collars, we replace with new ASTM-rated components that match Lennox’s static pressure specs. Patching a flex run is a temporary fix, and you’ll pay for it again inside two seasons. We never install used or salvage evaporator coils. When a Lennox coil is oil-logged beyond cleaning, we recommend replacement with an OEM coil or a coil built to Lennox’s exact fin-per-inch count. For common wear items like gaskets, collars, and R-8 flex, we keep local stock in Austin and nearby for fast Leander Lennox service turnaround. For specialty Lennox parts, we source from local distributors and tell you the exact cost before anything is ordered. If you’d like a straight answer on whether your Lennox part needs cleaning or replacing, call (940) 461-7203 and we’ll walk you through what we’d look for.
Our Lennox Service Process – Step by Step
- 1
Diagnosis. We inspect the full duct run, the air handler, the evaporator coil, and the return plenum. On Lennox systems, we specifically check static pressure, coil fin condition, and the iComfort error history. We show you what we find before any work begins.
- 2
Repair or cleaning. Duct cleaning uses negative-pressure extraction with the Rotobrush or Nikro equipment, and we clean the evaporator coil and blower wheel as part of the job if they’re accessible in the air handler. Failed duct components get replaced with ASTM-rated materials sized for your Lennox model’s airflow requirements.
- 3
Sealing and verification. Every takeoff collar gets mastic-sealed, not taped. We check static pressure again after the work and compare it to the manufacturer’s baseline for your system. If the numbers don’t improve, we keep working until they do.
- 4
Written guarantee. Every repair carries a written 365-Day Done Right Promise. If a covered repair fails, we return at no charge. You get the warranty in writing before we leave the driveway, not in an email three days later.
See the difference
Before
After
Before
After
Before
AfterLennox Products We Service & Install in Austin
We work on the full Lennox line across Austin, from older builder-grade Merit systems to the newest Dave Lennox Signature Collection. That includes the Merit Series ML14 and ML17, the Elite Series EL18 and EL22, the Signature Series SL28XCV and XC25, and the Dave Lennox Signature Collection S40 and S30. We regularly service evaporator coil cleaning, return duct cleaning, and Air Duct Cleaning services including duct sealing across all of these lines. The most common service calls in Austin come from ML14 blower dust buildup, EL18 coil film, and XC25 condenser cottonwood blockage, but we also see plenty of SL28XCV static pressure issues from poorly sealed returns. Whether your Lennox lives in a Mueller townhome or a Westlake custom build, the same checklist applies: inspect, clean, seal, verify.
We Also Service These Brands
While this page is about Lennox, our crews work on Trane and Carrier systems throughout Austin as well. A duct system doesn’t care what badge is on the air handler, and neither do we. The same negative-pressure cleaning, coil inspection, and duct sealing process applies across every brand we service.
FAQs – Lennox Air Duct Cleaning Service in Austin
No, we are an independent Lennox service provider. We are not an authorized dealer or warranty center, and we’ll never imply otherwise. What we are is experienced: our techs have worked on Lennox Merit, Elite, and Signature units throughout Austin for years, and we know the failure patterns those specific lines develop in this climate. Call (940) 461-7203 and Marcus or a senior tech can tell you whether we’ve seen your exact model’s issue before.
The most common cause on SL28XCV units in Austin is a clogged condensate trap in the air handler, not a dirty filter or coil. The trap fills with sludge from our hard water and limestone dust, the sensor trips, and the iComfort flags the coil. We clean the trap and drain line, verify the coil is actually clean, and reset the system. If the alert returns within a few days, we check the coil fins themselves, because the SL28XCV’s dense fin spacing can hold dust that a standard filter lets through. Call (940) 461-7203 for a same-week inspection and a written quote.
Yes, and we do it regularly in Austin’s older central neighborhoods where HVAC closets are tight. We run negative-pressure extraction through the existing supply registers and access the plenum from the air handler side. The challenge with ML14 systems is the blower wheel dust accumulation we mentioned above, so we typically pull the blower wheel and clean it as part of the job. If the wheel is too far gone from limestone dust imbalance, we’ll show you the damage and quote a replacement. Call (940) 461-7203 for an exact assessment of your system.
That’s typically drywall dust or limestone particulate being pulled into the return stream, and on EL18 systems it often traces back to a micro-leak in the evaporator coil hairpin bends. The refrigerant mist leaves a film, the film grabs dust, and the dust builds up around the return grilles where air velocity is highest. We clean the return ducts, coat the interior surface, and inspect the coil for active leaks. If the coil is leaking, we’ll tell you plainly and recommend replacement with an OEM coil or one built to Lennox’s fin-per-inch count. Call (940) 461-7203 and we’ll schedule a diagnostic.
No, routine evaporator coil cleaning does not void a Lennox warranty when done correctly, and we document every step so you have a record for any future warranty claim. What voids warranties are improper cleaning methods that bend fins or erase the serial number, and we don’t do either. We use fin-safe cleaners and straighten bent fins with a proper fin comb, not a screwdriver. If you have a specific warranty concern, call (940) 461-7203 and ask for Marcus.
For a full Lennox duct cleaning in Austin, including evaporator coil and blower wheel, you’re typically looking at $450 to $900 depending on the size of the home, the number of returns, and how much access the attic gives us. A smaller three-bedroom single-story in Mueller with one return and accessible ducts runs toward the lower end. A two-story Westlake custom with dual systems, a cathedral ceiling return, and a hard-to-reach attic runs toward the higher end. The price is written before we start, and it doesn’t change at the end. Call (940) 461-7203 and describe your Lennox system, and we’ll give you a firm number.
Book Your Lennox Service in Austin, TX
Your Lennox system deserves a cleaning or repair done by someone who knows the brand and knows Austin. Call (940) 461-7203 for a free estimate, a written price before work begins, and a tech whose name and photo you’ll see before they ring the bell.
Written by Marcus Veale, Owner at Linden Air Duct Austin, serving Austin since 2004.