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.
Lennox Air Duct Cleaning in San Antonio, TX | Mortons Air Duct San Antonio
We provide independent Lennox air duct cleaning across San Antonio, from Alamo Ranch to Stone Oak. The difference here comes down to one thing we see on nearly every Lennox system: caliche dust and mountain cedar pollen combining into a heavy, white film that generic duct cleaning won’t fully remove. If your Lennox system runs all summer and still leaves the house dusty, call us at (903) 354-8393 and we’ll walk you through what’s actually happening inside your ducts.
Why San Antonio Residents Choose Us for Lennox Service
Paul Adeyemi leads our crew, and he’s been inside more Lennox systems across San Antonio than most techs see in a career. He learned mechanical systems at Los Angeles Trade-Technical College, then brought that training to Texas, where he and the team have spent years working on everything from builder-grade Lennox Merit units to variable-capacity Signature systems. Our techs recognize problem patterns by generation, not just by model number.
We’re part of the Cedarwell family of independently owned companies. That means every visit includes a written price before any work starts, shoe covers and drop cloths inside the home, and a photo of the clean-up before we leave. It’s the Cedarwell Care Promise, and it applies to every Lennox job we do in San Antonio.
Styles & brands we work with




Common Lennox Air Duct Cleaning Problems We Solve in San Antonio
- Caliche dust packing Lennox Signature evaporator coils. Homes east of Highway 281 sit on the Austin Chalk formation, and that calcium carbonate dust coats coils with a concrete-like film within two cooling seasons. We see Signature units with static pressure spikes because the coil face is nearly sealed off, even when the homeowner changes filters on schedule.
- Flex-duct connectors sagging and separating on 1990s-era Lennox installs. Stone Oak’s two-story homes from that era used flexible ducts that pull loose at the return plenum over time. Once that connection fails, attic insulation and cedar pollen get sucked straight into the system.
- Mountain cedar pollen coating Lennox blower wheels. San Antonio’s winter cedar season creates one of the highest pollen counts in the nation. That fine pollen cakes onto blower wheel blades, throws them out of balance, and produces a low-frequency hum that sounds like a failing motor. Often, the motor is fine. The wheel just needs cleaning.
- Surface rust on Lennox heat exchangers near Salado Creek. Homes in flood-plain areas see recurring moisture that leaves heat exchangers with surface rust. When winter startup kicks in, that rust sheds into supply ducts and spreads through the house. Standard duct cleaning won’t address the source unless the coil and exchanger are treated too.
- Dust film accumulating faster than filters can catch. San Antonio’s long, hot, humid summers force near year-round AC use. Your Lennox system recirculates air constantly, and caliche-laden dust compounds faster than in cooler Texas cities. We clean the full path, not just the registers.
Lennox Service in San Antonio: What Local Conditions Mean for Your Equipment
Here’s the thing about San Antonio dust that people in Austin or Houston won’t recognize: it’s not the same color, and it’s not the same chemistry. Homes east of Highway 281 inside Loop 1604 sit on the Austin Chalk formation, and the calcium carbonate dust from that geology coats Lennox supply ducts with a white, concrete-like film within two cooling seasons. Austin and Houston get clay-based dust that’s dark and soft. Ours is light, alkaline, and sticky when mixed with the humidity of a San Antonio summer. For Lennox owners, that means a standard Air Duct Cleaning - San Antonio approach that works fine in Dallas won’t touch what’s bonded to your supply plenum here. We factor that into every Lennox inspection we do in San Antonio, because if you don’t treat that calcium film, it keeps shedding back into the airstream within months.
Lennox Models & Products We Service in San Antonio
We service the full Lennox range in San Antonio: Merit Series, Elite Series, Signature Series, and the Dave Lennox Signature Collection. When repairs touch system sealing or control components like door gaskets, collector boxes, or control boards, we source OEM Lennox parts because aftermarket tolerances in those areas cause quiet leaks. For wear items like blower wheel hubs, access panels, and duct collars, we use quality aftermarket alternatives. We recommend aftermarket only when our inspection shows the OEM part failed due to a specific San Antonio contaminant, not age. Our vans carry the parts most commonly needed for Lennox systems here, which means fewer return trips and faster turnaround for San Antonio customers. For full equipment details, see our Lennox sales & service page.
See the difference
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Before
AfterLennox Service Pricing in San Antonio
Air duct cleaning for a Lennox system in San Antonio typically runs between $450 and $800 for a single-family home, depending on system size and access. Duct sealing adds $200 to $500. Coil treatment runs $150 to $350. Video inspection is included with every cleaning. What drives the cost is how much caliche and cedar buildup has accumulated, how accessible your air handler is, and whether your flex ducts need resealing at the collars. Our estimate is free, it’s written before any work starts, and the price doesn’t change. Call (903) 354-8393 and Paul or one of our techs will walk you through exactly what your Lennox system needs and what it will cost.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – Lennox Air Duct Cleaning in San Antonio
No. Morton’s Air Duct Cleaning is an independent Lennox service provider in San Antonio. We’re not manufacturer-affiliated or authorized. What we offer is years of hands-on experience across every Lennox generation installed in San Antonio homes, from 1990s Merit units to current Signature systems. That pattern recognition is what lets us spot a failing blower wheel or a restricted coil before we cut an access panel. We’re part of the Cedarwell family of independently owned companies, and we stand behind every job with the 365-Day Done Right Promise.
We use OEM Lennox parts when the repair involves system control or sealing integrity, such as door gaskets, collector boxes, and control boards. Aftermarket tolerances in those areas can cause quiet leaks. For wear items like blower wheel hubs and duct collars, we use quality aftermarket parts when our inspection shows the OEM part failed from San Antonio-specific contaminants like caliche dust or cedar pollen, not from normal age. We also offer our Dryer Vent Cleaning in San Antonio to address related buildup issues.
A standard Lennox system cleaning in a single-family San Antonio home takes 4 to 6 hours. Systems with heavy caliche buildup on the evaporator coil or flex ducts that need resealing take longer, sometimes 8 hours across two visits. We’ll tell you the expected time when we provide your written estimate. Call (903) 354-8393 for a free quote with a specific timeline for your system.
Yes, when leaks are present. We’ve measured static pressure drops from 0.9 to 0.5 inches after resealing flex duct collars and treating coils on Lennox systems in San Antonio. That drop means your blower moves air more efficiently, your system cycles less often, and your energy use falls. One Stone Oak customer with a 2004 Elite Series air handler saw her nighttime cough disappear within a week after we resealed her return plenum and treated the coil. If your electric bills climb every summer, ask us to check for duct leakage during your cleaning. Call (903) 354-8393 for an exact assessment.
Video inspection shows you what’s inside your ducts before and after cleaning. For San Antonio Lennox owners, that matters because caliche and cedar buildup doesn’t always look like the fuzzy gray dust people expect. You’ll see the white calcium film on your supply plenum, the coil face percentage that was blocked, and the final condition after we finish. We send you before-and-after photos of your own system as part of every job.
Service Areas Near San Antonio
We serve Lennox owners throughout the San Antonio area, including Schertz, Boerne, Helotes, Live Oak, and Bulverde. Each area has its own dust profile. Boerne’s limestone-heavy soil loads ducts with calcium faster than most of Texas, while Schertz homes run their AC just as hard through summer. For details on those areas, see our San Antonio service area page or check Lennox service in Schertz and Lennox service in Boerne.
Book Your Lennox Service in San Antonio Today
We tell you exactly what we’re doing, and exactly what it costs, before we start. Call (903) 354-8393 and Paul or one of our techs will schedule a time that works around your family’s routine. A live person answers, day or night.
Written by Paul Adeyemi, Owner at Mortons Air Duct San Antonio, serving San Antonio since 2005.