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 | Linden Air Duct San Antonio
We clean and repair Lennox air duct systems across San Antonio, and the short version is this: caliche dust and hard water scale hit Lennox equipment harder here than almost anywhere else in Texas. We’re an independent Lennox service provider, not a manufacturer-authorized shop, which means we fix what’s actually wrong without warranty-pressure upsells. If your Lennox system is whistling at a return grille or the iComfort thermostat keeps throwing high static pressure alerts, call (430) 233-7681 and we’ll tell you what’s going on.
Our techs work on Lennox split systems, heat pumps, and variable-speed air handlers every week, from vintage G26 furnaces to current Dave Lennox Signature models. We know how foil-backed flex ducts behave in a 140°F San Antonio attic. That’s the difference between a cleaning that lasts and one that just moves dust around for a few months. For full Lennox sales & service context or to book an estimate anywhere in the San Antonio service area, we’re one call away.
Why San Antonio Residents Choose Us for Lennox Service
Marcus Veale, our owner, has spent the better part of two decades doing duct work across the Southwest. He and his crew have served San Antonio long enough to know that a Lennox EL296V in Alamo Heights ages differently than the same unit in a Stone Oak build from 2016. Older pier-and-beam homes breathe differently. Slab-on-grade homes with flex runs in the attic cook those ducts all summer. Marcus is known for walking homeowners through exactly what he found before a single tool comes out. No surprises on the invoice, ever.
We write the price down before work starts. Every time. Every tech who shows up is background-checked and identity-verified under the Threshold Standard, and you get the tech’s name and photo before the visit. They show a photo ID badge at the door. For Lennox duct work specifically, we stock OEM filters, collars, and coil cleaners locally, so we’re not waiting on a parts truck from Dallas when your system needs attention.
Styles & brands we work with
Common Lennox Air Duct Cleaning Problems We Solve in San Antonio
- Whistling returns from clogged Healthy Climate filters. Lennox’s dense pleated MERV 11 and MERV 13 filters catch more than standard filters, which is good until caliche dust packs them solid. The variable-speed blower starves for air, the return grille whistles, and the motor works harder than it should. We see this constantly in San Antonio slab homes.
- White powder on the blower wheel. That fine white dust streaking the blower wheel of your EL296V isn’t drywall. It’s caliche, drawn in through pre-2015 flex duct collars that have developed pinhole leaks in attic heat. The collars pull Saharan dust and limestone grit straight into the plenum.
- Corroded evaporator coil fins. San Antonio’s hard water leaves scale on evaporator coils, especially where the air handler sits in a humid crawlspace with a leaky return. Homes near the Balcones Escarpment get the worst of it. Scale doesn’t just reduce cooling, it gives biological growth a surface to cling to.
- iComfort S30 high static pressure alerts. Tight 2000s-era homes on the Northeast side often have undersized returns. The S30 thermostat reads the pressure differential and throws an alert, and the fix isn’t just clearing the code, it’s finding the restriction in the duct run, often a collapsed or separated flex section.
- Premature ECM blower motor wear. When dust embeds in a Lennox blower wheel, it throws the wheel off balance. That wobble chews through ECM blower motor bearings faster than the motor should ever wear. A properly cleaned wheel runs true and quiet.
Lennox Service in San Antonio: What Local Conditions Mean for Your Equipment
Here’s what installers from cooler climates never anticipate: San Antonio homes over the Edwards Aquifer recharge zone pull fine limestone dust through soffit vents after every construction boom. That’s not a theory, it’s what we find inside sealed-combustion Lennox air handlers in the Hill Country foothills off I-10 West. Lennox’s sealed-combustion design keeps combustion air separate, which is good engineering, but it doesn’t filter the grit coming through the return side. That dust embeds in the blower wheel and throws it off balance, and then the iComfort thermostat starts crying about static pressure. The fix isn’t a new blower motor. It’s cleaning the wheel, sealing the return path, and sometimes replacing a crushed flex run with a proper R-8 section. Tell me what you’re seeing, and I’ll tell you whether it’s worth fixing.
Lennox Models & Products We Service in San Antonio
We service the full Lennox range in San Antonio: Dave Lennox Signature Collection systems like the SLP98V and XC25, the Elite Series including the EL296V and EL18XCV, Merit Series units like the ML14XC1 and ML180E, and legacy G26 and G61 furnaces with their matching evaporator coils. For parts, we install OEM Lennox filters, collars, and coil cleaners when original engineering matters for warranty or performance. For duct sealing, we default to commercial mastic and metal-backed tape that outlasts the original foil. When a flex run has failed, we’d rather replace the bad section with a quality aftermarket R-8 equivalent than patch a failed Lennox run. And we’ll tell you plainly when a coil is too scaled to save.
See the difference
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Before
AfterLennox Service Pricing in San Antonio
Air Duct Cleaning - San Antonio for a Lennox system typically runs $350 to $650 for a full supply and return cleaning on an average single-family home. Evaporator coil cleaning adds $150 to $300 depending on access and scale buildup. Flex duct repair or replacement runs $40 to $90 per linear foot, and return duct sealing with mastic runs $200 to $450 per return depending on accessibility. The exact number depends on the size of the home, the condition of the existing ductwork, and how much caliche has accumulated. Every estimate is free, written before work begins, and the price doesn’t change at the end of the job. Call (430) 233-7681 and we’ll give you a straight number.
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
That white dust is caliche, a fine limestone powder common in San Antonio’s soil, and it gets pulled into your return path through soffit vents, leaky collars, and construction activity near the Balcones Escarpment. Dallas sits on different geology and doesn’t have the same limestone dust load. A Lennox system here simply captures more of it, faster.
Often yes, if the restriction is dust-packed coils or a blocked filter. But if the warning persists after cleaning, the cause is usually a collapsed or separated flex run somewhere in the attic. We find that on San Antonio slab homes regularly, especially where original R-6 flex has been cooking in 140°F heat for a decade. Call (430) 233-7681 and we’ll locate the restriction before recommending anything.
Caliche dust doesn’t directly attack the heat exchanger, but the airflow restriction it creates makes the blower work harder, which raises internal temperatures over time. The bigger risk is the dust embedding in the blower wheel and throwing it off balance, which wears the ECM motor bearings. Regular cleaning prevents that chain reaction.
No. Saharan dust adds load to the ducts but doesn’t damage the duct material itself, unlike the issues we address with our Dryer Vent Cleaning in San Antonio. What damages flex ducts is attic heat degrading the inner liner and collars over years. If your flex is pre-2015 and showing white streaking at the plenum, replacement is worth considering. We’ll scope it and show you the video.
Yes, plan on cleaning every two to three years instead of the usual three to five. Homes over the recharge zone, like those off I-10 West toward the Hill Country, pull measurable limestone dust through soffit vents during any construction or drought period. That grit lands in the blower wheel and filter faster than in other parts of San Antonio. Call (430) 233-7681 for an inspection and we’ll show you what’s actually in your ducts.
Service Areas Near San Antonio
We serve all of San Antonio, including Alamo Heights, Windcrest, and Universal City. For customers just outside the city, we also provide Lennox service in Selma and Lennox service in Fair Oaks Ranch, covering the I-35 and I-10 corridors with the same written-price commitment.
Book Your Lennox Service in San Antonio Today
If your Lennox system is whistling, throwing iComfort alerts, or just blowing dust you’d rather not think about, call (430) 233-7681. We’ll scope the ducts, show you what’s in there, and put the price in writing before any work starts.
Written by Marcus Veale, Owner at Linden Air Duct San Antonio, serving San Antonio since 2004.