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.
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AfterLennox Air Duct Cleaning in Jacksonville, CA | Morton’s Air Duct Cleaning
We’re an Air Duct Cleaning - Jacksonville company that works on Lennox systems throughout the area, and the short answer is this: yes, we clean, repair, and reseal Lennox ductwork here, and the one thing that makes our work different is that we treat Jacksonville’s humidity as the real problem, not just the dirt. Most Lennox duct cleaning in this city is really a moisture-management job, because your ducts never fully dry out between cleanings. Call us at (323) 918-4345 for a free estimate, and we’ll explain exactly what we found and what it will cost before anything starts.
We know Lennox equipment firsthand – the Merit, Elite, and Signature lines all have their own duct behaviors. For more on the brand itself, see our Lennox sales & service page. We’re not authorized, sponsored, or endorsed by Lennox. We’re simply the crew that Jacksonville homeowners call when their Lennox flex duct is crumbling in an attic that hit 140°F yesterday.
Why Jacksonville Residents Choose Us for Lennox Service
Paul Adeyemi, our owner, grew up in Inglewood and trained in HVAC fundamentals at Los Angeles Trade-Technical College. That hands-on ventilation coursework is still the backbone of how we approach every Lennox job, and it’s why he tells our technicians the same thing every morning: explain the work before you touch anything, and lay down drop cloths without being asked. Before we start, let me show you exactly what we found and exactly what it will cost to fix it.
We’ve worked inside Lennox ducted systems across Jacksonville’s Westside, Arlington, Southside, and Mandarin for years now. The combination of slab-on-grade ranch homes from the 1960s through the 1990s and flex duct routed through unconditioned attics means we see the same failure patterns over and over. We carry OEM-compatible aftermarket flex duct, mastic, and insulation so we can repair and reseal on the spot instead of scheduling a second visit. And every job gets a written price before work begins, because families here have been burned by surprise invoices too many times to tolerate another one.
Common Lennox Air Duct Cleaning Problems We Solve in Jacksonville
- Crumbling fiberglass flex duct liner on 1970s-1990s Lennox systems. In Jacksonville attics that routinely hit 130-145°F during summer, the inner liner of original flex duct breaks down and sheds particulate directly into the supply air. We see this constantly on the Westside, where rental subdivisions near NAS Jacksonville often still have the original Lennox ductwork from installation.
- Mold and biofilm at boot-to-register connections. Your Lennox supply plenum connects to each register boot, and that junction is where condensation collects when cool air meets warm attic air. With Jacksonville’s overnight humidity sitting above 85-90% most of the year, those boots never dry out. The result is mold colonization that recirculates through the house every time the AC kicks on.
- Condensate-related corrosion and coil fouling on Lennox evaporator coils. Systems in Jacksonville run 9-10 months annually, and the evaporator coil sits in a dark, damp space almost year-round. We find Lennox coils here with corrosion and biological fouling that’s far more aggressive than what you’d see in drier climates, because there’s no dry season to interrupt the growth cycle.
- Premature flex duct cracking and seam separation. Around Arlington and the Westside specifically, we open attics to find Lennox flex duct that has split at the seams or cracked along its length. When that happens, attic air and loose insulation get pulled into the system, and your supply air ends up carrying whatever is floating around above your ceiling.
- Restricted airflow from collapsed or kinked duct runs. Decades of heat exposure softens flex duct, and in older Jacksonville homes the runs sag between supports. A collapsed duct run means reduced airflow to part of the house, which forces your Lennox system to work harder and cool unevenly.
Lennox Service in Jacksonville: What Local Conditions Mean for Your Equipment
Here’s the thing most national duct cleaning articles won’t tell you: Jacksonville sits almost entirely at or near sea level across the low-lying St. Johns River basin, with the river, the Intracoastal Waterway, and extensive surrounding wetlands keeping overnight relative humidity persistently above 85-90% for most of the year. Your Lennox duct system never actually dries out. Even in January, when the AC might cycle less, the moisture in those ducts just sits there, feeding whatever started growing in August. That means duct cleaning in Jacksonville is a moisture-management job, not just a debris-removal one. If you clean the ducts but don’t address the condensation at the boot connections and the degraded flex liner that holds moisture, the mold comes back within months, not years. On the Westside, where 1960s-1970s rental subdivisions cluster near NAS Jacksonville, we regularly find original Lennox flex duct that has deteriorated to the point where the inner fiberglass liner is actively crumbling into the air stream. A homeowner in Mandarin or a higher-elevation Florida market with the same Lennox model would not see this same failure pattern, because their attics and humidity levels behave differently. Jacksonville’s specific geography, combined with a housing stock built almost entirely on slab foundations with no basement alternative, creates conditions that punish Lennox ductwork harder than almost anywhere else in the state.
Lennox Models & Products We Service in Jacksonville
We work on the full range of Lennox ducted equipment, from the entry-level Merit Series (13ACX, 14ACX, ML14XC1) to the Elite Series (XC13, XC14, XC16, XC21) and the Signature Collection (XC25, SL18XC1). We also service homes with Lennox Dave Lennox Signature gas furnaces, including the ML180, EL280, and SL280 models, where the supply plenum and duct connections matter just as much as the equipment itself.
For repairs, we use OEM-compatible aftermarket flex duct, mastic, and insulation that meet or exceed original specifications. When factory-style replacement components are available, we source those too. And we’ll be honest with you: if a Lennox duct run or component is beyond repair given the age of your home and the condition of your attic, we’ll say so plainly and explain what replacement makes sense. We don’t upsell. We document everything with video inspection so you can see the condition yourself.
Lennox Service Pricing in Jacksonville
Whole-system air duct cleaning in Jacksonville typically runs between $325 and $650 for an average single-family home, depending on the number of systems, the total linear feet of ductwork, and the level of contamination. Flex duct repair and replacement is priced per run, generally $125 to $275 per run depending on length and attic accessibility. Mastic sealing around boots and plenum connections adds roughly $150 to $350 depending on how many connections need work. Video inspection is included with every full cleaning at no additional charge.
What drives the cost here? Attic access conditions, the age and condition of the existing ductwork, and whether we’re dealing with mold remediation at the boots or just debris removal. A 1980s Westside ranch with original flex duct will need more work than a 2000s Southside home with newer ducting, and the price reflects that honestly. Call (323) 918-4345 for a free estimate, and we’ll walk you through exactly what the job involves before you commit.
Serving Jacksonville, FL - Our Local Coverage Area
We’re based in the Jacksonville 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 Jacksonville
Because your ducts never dry out completely. Jacksonville’s overnight humidity rarely drops below 85-90% even in winter, so the condensation at your boot-to-register connections persists year-round. If the previous cleaning removed surface mold but didn’t repair the failed flex liner or reseal the boots with mastic, the moisture source stayed intact and the mold simply regrew. The fix is treating it as a moisture-management job: clean, repair, reseal. Call (323) 918-4345 and we’ll show you video of exactly what’s happening at each boot.
That depends on the condition of the inner liner. If the fiberglass liner is intact and the duct is structurally sound, cleaning is sufficient. If the liner has crumbled – which we see often in Jacksonville attics that hit 130-145°F – then replacement is the honest answer, because no amount of cleaning restores a degraded liner. We’ll show you video inspection footage so you can see the condition yourself and make an informed decision.
It’s physics. Your Lennox system pushes cooled air through ductwork that runs through a hot, humid attic. Where that cool duct meets the warmer register boot connection, condensation forms. In Jacksonville, that condensation never fully evaporates because the ambient humidity is so high, so the boot becomes a persistent damp surface where mold colonizes. Mastic sealing and proper insulation at those connections reduces the condensation, but the boot area will always need periodic attention in this climate. Call (323) 918-4345 for an assessment.
Yes, in most cases we can clean the evaporator coil in place using professional equipment and coil-cleaning products rather than pulling the entire coil. That said, if the coil is heavily fouled or corroded – which we see more often in Jacksonville because systems run 9-10 months a year in high humidity – we’ll tell you honestly whether an in-place clean will be enough or whether removal and a deeper service is warranted.
We focus on residential duct cleaning and Jacksonville Dryer Vent Cleaning, so we don’t take on commercial building ductwork. If you’re a homeowner in Jacksonville with a Lennox system in your house, we’re the right call. If you manage a commercial property, we’re happy to refer you to a commercial specialist who can handle that scope of work properly.
Service Areas Near Jacksonville
We serve Jacksonville and the surrounding communities across Northeast Florida, including Arlington, Mandarin, the Westside, Southside, and neighborhoods throughout the Jacksonville metro. If you’re outside the immediate area, we also have crews who know Lennox systems in other markets – see our Jacksonville service area page for more. For Lennox owners in other regions, we’ve written about Lennox service in Austin and Lennox service in San Jose as well.
Book Your Lennox Service in Jacksonville Today
Call (323) 918-4345 and a live person will answer. We’ll schedule your free estimate, explain exactly what we’ll do before we start, and hand you a written price before any work begins. That’s the way it should work. That’s the way we do it.
Written by Paul Adeyemi, Owner at Morton’s Air Duct Cleaning, serving Jacksonville since 2005.