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 Miami Homeowners Choose Lennox Air Duct Cleaning
We provide independent Miami Lennox service throughout the area, from Coral Gables bungalows to Brickell high-rises, and we back every job with our 365-Day Done Right Promise in writing. The difference with our Lennox work comes down to this: we clean the ducts and the evaporator coil together, because in Miami’s humidity, a clean duct run attached to a fouled coil is a job half done. Most homes run between $450 and $900 for a full Lennox system cleaning, depending on the number of returns, the coil condition, and whether duct sealing is needed. Call (850) 779-9240 for a written quote before we touch a single vent.
We’re an independent Lennox service in Hialeah and throughout the area, not a Lennox dealer or authorized warranty station. That matters in your favor. Every cleaning decision we make is based on what your ductwork and coil actually need, not on protecting a manufacturer relationship. And because Miami’s salt air and year-round AC load create failure patterns Lennox owners in drier climates never see, this page covers the specific signals to watch for on Elite, Signature, and Merit series systems.
Why Trust Kestrel Air Duct Miami for Your Lennox Air Duct Cleaning?
Dale Whitmore, owner of Kestrel Air Duct Miami, picked up his HVAC fundamentals at Los Angeles Trade-Technical College and spent the better part of two decades working duct systems from residential homes to mid-size commercial buildings before bringing that experience to Miami. He and his crew have cleaned Lennox systems in this city for years, and they’ve learned what the salt air and constant humidity do to a variable-speed air handler that a technician in Phoenix or Dallas never has to think about.
Our techs work on Lennox systems daily in Miami’s climate. We know how the air handler, evaporator coil, and duct layout on models like the Elite and Signature series behave when grime and mold take hold. We use Rotobrush rotary brush systems to dislodge debris at the duct wall, Nikro negative-pressure units to pull contaminants out, and Abatement Technologies HEPA filtration to keep loosened particles from re-entering your living space. When a Lennox communicating system needs exact tolerances on filters or gaskets, we default to OEM-compatible parts. When a flex duct has collapsed from attic heat and the homeowner wants a cost-effective fix, we use proven aftermarket flex duct and insulation and tell you exactly why we made that call. Every job follows The Kingswell Way: say the price, show up in the window we gave, leave the place cleaner, put the guarantee in writing, come back if it fails.
Styles & brands we work with




Common Lennox Air Duct Cleaning Problems We Fix in Miami
- Condensation and microbial growth in variable-speed flex runs. Lennox Elite and Signature systems, like the EL296V and SL297, run long low-stage cycles. That’s great for comfort and efficiency, but it keeps duct surfaces wet far longer than single-stage units. In Miami’s humidity, that moisture feeds mold and bacteria inside the flex ducts. We see this constantly in homes where the AC runs 10 or 11 months a year. The fix is a full duct cleaning with HEPA extraction, followed by sealing any leaks that let humid attic air into the return side.
- Caked evaporator coils on high-efficiency Lennox systems. The cased A-coils on Lennox high-efficiency models trap fine Miami dust aggressively. Once the coil loads up, static pressure climbs and airflow drops. Cleaning the ducts without cleaning the coil won’t restore performance. We do both, because on a Lennox system they fail together.
- Airflow faults on Lennox communicating systems. Models in the Dave Lennox Signature Collection, like the SLP99V, use communicating controls that monitor airflow constantly. When return ducts clog, the system throws an airflow fault instead of just running weak like a basic unit. Homeowners often mistake this for a board failure. Often it’s just a dirty return run. We diagnose the ducts first before recommending any electronic work.
- Blower wheel buildup and low-frequency hum. Lint, salt-air particulate, and fine dust cling to the blower wheel on Lennox air handlers. On variable-speed motors, that imbalance creates a low-frequency hum at certain RPMs. Cleaning the blower wheel and the surrounding housing usually eliminates it. We include this in a full system cleaning.
- Salt-air corrosion on duct seams near the coast. In Coral Gables, Coconut Grove, and older neighborhoods near Biscayne Bay, rusted duct seams are a routine call. Salt-laden air accelerates corrosion on exposed metal ductwork, and once a seam rusts through, cooled air leaks into the attic while humid attic air gets pulled into the return. We inspect seams during every cleaning and will tell you plainly if a section needs sealing or replacement.
Lennox Parts & Our Repair-vs-Replace Approach
We don’t push OEM parts where they don’t matter, and we don’t cut corners where they do. On Lennox communicating systems, where the control board is reading exact airflow and static pressure values, we default to OEM Lennox-compatible filters, gaskets, and access panels. Tolerances on those parts affect system performance and fault codes. On flex duct and insulation, where an aftermarket product from a reputable manufacturer performs just as well for less money, we offer that option and explain the difference in plain terms.
When it comes to repair versus replace, we follow one rule: if a Lennox duct run is collapsed or internally damaged beyond cleaning, we say so and quote a replacement rather than selling a second cleaning. We have told homeowners their ducts didn’t need cleaning at all and that the real issue was a failed seal at the plenum. That’s the accountability the 365-Day Done Right Promise is built on. If a repair fails within the guarantee period, we return and make it right at no charge, in writing. Call (850) 779-9240 if you want an honest assessment.
Our Lennox Service Process – Step by Step
- 1
Diagnosis and written scope. We inspect the returns, supply runs, plenum, and evaporator coil. On Lennox variable-speed systems, we check the blower wheel and communicating control history for airflow fault codes. We hand you a written price before any work begins.
- 2
Cleaning and repair. We use Rotobrush agitation at the duct wall, Nikro negative-air extraction to pull loosened debris out, and Abatement Technologies HEPA filtration to keep the living space clean. If we find a collapsed flex run or rusted seam, we quote the repair and proceed only with your approval.
- 3
System test. After cleaning, we run the Lennox air handler through its stages and measure airflow. On communicating systems, we clear fault history and verify no airflow codes return. We confirm the blower wheel spins balanced and quiet.
- 4
Documentation and guarantee. You receive before-and-after photos of your ducts, a written summary of what was done, and the 365-Day Done Right Promise in writing. If the work falls short within the guarantee period, we return and make it right free of charge.
See the difference
Before
After
Before
After
Before
AfterLennox Products We Service & Install in Miami
We service the full range of Lennox residential systems found in Miami homes, including Lennox Air Duct Cleaning in Brownsville, FL and surrounding areas. That includes the Merit Series (ML180, ML296), the Elite Series (EL296V, EL280), and the Dave Lennox Signature Collection (SL297, SLP99V). We clean and seal ductwork on single-stage, two-stage, and fully modulating systems. We also service evaporator coils, blower assemblies, and return configurations on both cased and uncased coil setups. We keep common Lennox-compatible filters, gaskets, sealants, and flex duct in stock for fast turnaround on Miami jobs. Whatever Lennox system you have, we’ve likely cleaned one like it this month.
We Also Service These Brands
While this page focuses on Lennox, our Miami crews work on Trane and Carrier systems as well. The cleaning methods and equipment we use are brand-independent; the failure patterns are what change. If your home has a mixed system or you own rental properties with different brands, we can handle the full portfolio in one visit.
FAQs – Lennox Air Duct Cleaning Service in Miami
Because the filter is rarely the real restriction. On Lennox communicating systems, the airflow sensor reads resistance across the whole duct network. If a return flex run is collapsed or the evaporator coil is caked, the system flags an airflow fault even with brand-new filters. We diagnose the ductwork and coil before recommending any electronic work. Call (850) 779-9240 and describe the fault code; we’ll tell you what it likely means before you spend a dollar.
Yes, on a Signature system in Miami, the coil and ducts load together. The variable-speed blower pulls air across the coil and through those ducts constantly. If you clean the coil but leave the ducts coated with mold and fine dust, the new coil load comes back within months. We clean them as a system. Call (850) 779-9240 for a quote on a full system cleaning.
Yes, and it does so faster than most homeowners expect. Salt-laden air accelerates corrosion on exposed metal seams and duct hangers, particularly in older homes near the coast. Once a seam rusts through, cooled air leaks into the attic and the system works harder. We inspect for salt corrosion on every Miami cleaning and can quote a repair or replacement in the same visit. Call (850) 779-9240 to schedule an inspection.
Because something is keeping moisture in the ducts. In Miami, the most common culprit is a return leak pulling humid attic air into the duct system, or a drain pan that’s not draining fully. If those issues aren’t addressed, cleaning alone won’t stop the odor. We trace the moisture source during our inspection and correct it rather than just masking it with another cleaning. Call (850) 779-9240 and we’ll walk you through what to check.
Yes, and we do it when the ducts cannot be effectively cleaned. If a flex run is collapsed, torn, or internally damaged, cleaning it is a waste of your money. We quote replacement and explain why it’s the right call in that specific situation. That’s the honest approach the 365-Day Done Right Promise demands. Call (850) 779-9240 for an assessment.
Most Lennox homes in Miami run between $450 and $900 for a full system cleaning. The range depends on the number of returns, the coil condition, the size of the home, and whether duct sealing is included. We give you one written price before any work begins, and that price does not change at the door. Call (850) 779-9240 for a free estimate; we’ll ask a few questions and give you a firm number in writing.
Book Your Lennox Service in Miami, FL
Tell me what you’re seeing and I’ll tell you what it actually means – no upsell attached. Call (850) 779-9240 and you’ll reach a live person, any time of day. We’ll schedule a defined arrival window, inspect your Lennox system, and hand you a written price before any work begins. If the work falls short within the year, we return and make it right at no charge. That’s the 365-Day Done Right Promise, and it’s in writing on every single job.
Written by Dale Whitmore, Owner at Kestrel Air Duct Miami, serving Miami since 2004 under the Kingswell Guarantee.