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.
Lennox Air Duct Cleaning in Miami, CA | Hollis Air Duct Cleaning
We provide independent Lennox Air Duct Cleaning in Miami, and the quick answer is this: if you own a Lennox system here, your ductwork needs more than a dust pass. Miami’s 75% average humidity and year-round AC runtime mean Lennox evaporator coils and duct interiors grow biological material faster than in any dry climate. We’re not authorized by Lennox, and we’ll tell you that straight. What we are is an independent Miami company that sees more Lennox equipment in this city than almost any other brand, and we clean it by the book. Call (361) 326-5060 for a written estimate before any work starts.
Why Miami Residents Choose Us for Lennox Service
We’ve worked on Lennox residential and light-commercial systems across Miami for years, and that matters because Lennox equipment has its own habits. Variable-speed blowers pull more air through the coil cabinet, which pulls more of Miami’s humid air across surfaces that never fully dry. Ducted air handlers, coil cabinets, flex runs in hot attics: each one fails differently here than it would in Phoenix or Denver. Roy Castellanos grew up in Boyle Heights and spent his adult life in the mechanical trades across Los Angeles County. He learned HVAC fundamentals through the sheet metal and air conditioning program at Los Angeles Trade-Technical College, then put in years of hands-on duct work before starting Hollis Air Duct Cleaning. When we open a Lennox air handler in a Miami attic, Roy’s the standard behind what we find and what we do about it.
Every Lennox duct cleaning job we do in Miami gets a written price before work begins. The price does not move at the door. Our technicians are background-checked and uniformed, and the Lennox sales & service work we do across Miami follows The Garrison Standard: arrive inside the window, price it in writing, leave the site clean. If anything fails within a year, our 365-Day Done Right Promise brings us back at no charge. That’s written on every job, not implied.
Common Lennox Air Duct Cleaning Problems We Solve in Miami
- Mold and mildew on Lennox evaporator coils and inside coil cabinets. Miami’s average relative humidity sits at 75%, and Lennox systems here run nearly year-round. The coil never gets a dry-out period, so the drain pan, insulation, and cabinet interior stay damp enough for microbial growth. Homeowners usually notice the smell before they see the problem. We clean the coil, treat the cabinet, and check the drain path so moisture moves out instead of sitting.
- Sagging, kinked flex duct in attics that hit 140°F. Post-2000 Miami tract homes often have Lennox air handlers connected to undersized flex runs in attics that bake in the Florida sun. The heat cooks the flex duct’s outer jacket, causes sagging between supports, and loosens takeoffs at the plenum. That pulls in hot attic air, mold spores, and humidity. We inspect every run, replace what’s degraded, and re-support what’s salvageable.
- Contaminated blower wheels on variable-speed Lennox air handlers. Constant runtime on Miami’s Lennox SL28, EL18, and Merit Series systems pulls dust and biological growth across the blower wheel. The build-up imbalances the wheel, which causes vibration, noise, and reduced airflow. Cleaning the blower assembly is part of a proper duct cleaning, not an add-on.
- Failed mastic and degraded foil tape at Lennox coil cabinet seams. Miami’s attic heat and humidity break down sealants faster than in cooler or drier markets. Once the seams fail, conditioned air leaks out and humid outside air gets pulled in, keeping the whole cabinet wet. We scrape the old sealant, reapply mastic, and test the cabinet for leaks before we call the job done.
- Storm water intrusion in ductwork after heavy summer rains. In flood-prone Miami neighborhoods, water finds its way into low duct runs during hurricane season. Standing water and soaked insulation inside a Lennox system will spread mold spores through the house every time the blower runs. We check for moisture before cleaning, remove and replace wet insulation, and only then start the cleaning process.
Lennox Service in Miami: What Local Conditions Mean for Your Equipment
Here’s the thing most generic duct cleaning pages won’t tell you: in Miami’s post-2000 tract homes, Lennox air handlers are routinely installed in attics that reach 140°F. That’s not a typo. The attic heat cooks flex duct, accelerates sealant failure, and shortens the life of every flexible component connected to your Lennox system. Sealing and duct insulation matter just as much as the cleaning itself. We see this to a far greater degree in Miami than in neighboring Broward or Palm Beach County homes, where different attic ventilation and construction details change how fast materials degrade. A homeowner in Little Havana called us after a heavy summer storm because her Lennox Merit Series system was blowing a musty smell. We found standing water in a low flex run, soaked insulation, and mold on the air handler cabinet and evaporator coil. We removed the wet insulation, cleaned and treated the coil and cabinet, replaced the damaged flex run, and sealed the plenum with mastic. The smell was gone, and airflow returned to normal. That’s what Miami does to Lennox equipment, and that’s what we fix.
Lennox Models & Products We Service in Miami
We clean and seal ductwork connected to the full Lennox residential lineup: Dave Lennox Signature Collection systems with variable-speed blowers, including the SL28 and SL25; Elite Series air conditioners and heat pumps like the EL16 and EL18; Merit Series packaged and split systems, including the ML14 and ML17; and Lennox Healthy Climate whole-home media cabinets and filtration systems. For any repair work tied to your duct system, we use OEM Lennox parts when they’re available and competitively priced, especially for blower motors, control boards, and coil cabinets. Otherwise we specify quality aftermarket equivalents from established suppliers and tell you which one we’re using and why. We keep common filtration parts moving through Miami so service doesn’t stall waiting on a shipment. We’re also honest about repair-versus-replace: on older Lennox units with advanced coil rot in Miami’s humid, salt-tinged air, replacement often costs less over two years than repeated repairs.
Lennox Service Pricing in Miami
Air duct cleaning for a Lennox system in Miami typically runs $400 to $900 for the full system, and that price goes up when we’re also cleaning the evaporator coil, treating mold inside an air handler cabinet, or replacing soggy flex runs after a storm. Add coil cleaning and antimicrobial treatment and the job usually lands between $600 and $1,200 depending on home size, number of returns, and what we find once we open the system. We quote one flat price per system before work starts, not a per-vent number that doubles on the driveway. The free estimate includes an inspection of your Lennox air handler, coil cabinet, visible duct runs, and plenum connections. Call (361) 326-5060 and we’ll give you a written number.
Serving Miami, FL - Our Local Coverage Area
We’re based in the Miami 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 Miami
Yes. Miami’s 75% average humidity, year-round AC runtime, and hurricane-season moisture mean Lennox coil cabinets and duct interiors accumulate biological growth faster than in drier climates. Most Miami Lennox owners do better with duct cleaning every 2 to 3 years instead of the 3 to 5 year interval common elsewhere. If your system smells musty or you’ve had water intrusion, don’t wait for the calendar. Call (361) 326-5060 and we’ll inspect it.
Yes, we can, but Miami condo work requires coordination with building management and sometimes HOA approval before we touch a shared vertical chase. We handle that paperwork and scheduling on our end. The cleaning itself works the same way, but access matters more in a condo: we need clear access to the Lennox air handler and the chase opening. Call (361) 326-5060 and we’ll walk you through what your building requires.
Most likely, yes, and in Miami the source is usually the evaporator coil or the drain pan inside the Lennox air handler cabinet, not just the ducts themselves. That’s why our Miami Dryer Vent Cleaning and full system services address the whole airflow path. The coil never fully dries in this humidity, so mold colonizes it and the smell travels through the ducts every time the blower runs. A proper cleaning has to include the coil and cabinet, not just the duct runs. Call (361) 326-5060 for a free estimate on a full Lennox coil and duct cleaning.
Turn the system off and don’t run it. Standing water and soaked insulation inside ductwork will spread mold spores through your house if the blower runs. We’ll inspect the Lennox air handler, duct runs, and plenum for moisture, remove and replace soaked insulation, and only then start cleaning. In flood-prone Miami neighborhoods like Little Havana, this is one of the most common post-storm calls we get. Call (361) 326-5060 as soon as you suspect water intrusion.
We use OEM Lennox parts when they’re available and competitively priced, especially for blower motors, control boards, and coil cabinets. When OEM parts aren’t the right call, we specify quality aftermarket equivalents and tell you which one we’re using and why before we install it. No mystery parts, no surprise swaps. Call (361) 326-5060 and we’ll explain exactly what your system needs.
Service Areas Near Miami
We serve Miami and the surrounding communities across the metro area. If you’re just outside the city, call and ask; our service area covers Los Angeles, Brooklyn, Houston, Queens, Manhattan, and Philadelphia. We also handle Lennox work for customers looking for Lennox service in Long Beach and Lennox service in Oakland. Each location is independently owned and operated under The Garrison Standard.
You can also check our Miami service area page for the full list of neighborhoods we cover.
Book Your Lennox Service in Miami Today
Call (361) 326-5060 and we’ll set up a free estimate for your Lennox air duct cleaning in Miami. We’ll give you a written price before any work starts, show up uniformed and on time, and stand behind the work for a full year. Clean ducts, straight answers – that’s the whole job.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Miami since 2004.




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