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 Fort Lauderdale Homeowners Choose Lennox Air Duct Cleaning
We provide independent Lennox in Fort Lauderdale air duct cleaning service, and we work on every Lennox line: Signature Collection, Elite Series, and Merit Series, including the variable-speed SLP99V and the XC25. What makes our Lennox work different is simple. We understand how Fort Lauderdale’s salt air and 90% humidity attack duct systems attached to Lennox equipment, and we price every job in writing before we touch the ductwork. Call (754) 354-3644 for a free estimate. We are not factory-authorized by Lennox. We are an independent service team, and that matters because we tell you what a Lennox dealer might not, especially when duct contamination is quietly ruining a perfectly good furnace or air handler.
Key Takeaways
- Independent Lennox service covering Signature, Elite, and Merit Series systems across Fort Lauderdale.
- We specialize in the failure mode Fort Lauderdale causes most: salt air corrosion and humidity-driven mold growth in duct runs.
- Every job gets a written price before work starts, covered by the 365-Day Done Right Promise.
- We use OEM Lennox parts where exact dimensions matter and commercial-grade mastic and duct board where they outperform factory replacements.
- Video inspection, evaporator coil cleaning, and air handler cleaning are part of a proper Lennox duct service, not add-on upsells.
Styles & brands we work with
Why Trust Hollis Air Duct Fort Lauderdale for Your Lennox Air Duct Cleaning?
Roy Castellanos, owner of Hollis Air Duct Fort Lauderdale, learned the trade at Los Angeles Trade-Technical College and spent the better part of two decades doing HVAC and air duct work across South Florida before building this crew. He and his technicians have opened Lennox air handlers in homes a few blocks from Las Olas Boulevard and in commercial buildings near the Port Everglades corridor, as well as handling Lennox repair in Plantation. The one thing those jobs have in common is the way Fort Lauderdale’s coastal air pushes systems harder than most homeowners realize. Salt spray, attic heat, and year-round humidity do not just dirty a duct system. They change how it fails.
Our technicians run Rotobrush rotary brush systems and Nikro negative-air machines on Lennox ductwork, the same professional-grade equipment commercial crews use. We use these tools on Signature Collection air handlers like the CBA series, Elite Series furnaces, and Merit Series flex runs. We also stock OEM Lennox filters and access panels for jobs that require exact dimensions, because a slightly-off aftermarket panel on a Lennox air handler changes static pressure and airflow. When duct sealing is needed, we use commercial-grade mastic and UL181 tape. The Garrison Code is the operational standard we train to: arrive inside the quoted window, put the price in writing before any work starts, finish the job by the book, and leave the site clean. That is not marketing language. That is the standard, and it applies to every Lennox job we take in Fort Lauderdale.
Common Lennox Air Duct Cleaning Problems We Fix in Fort Lauderdale
- Fiberglass duct board breakdown on 1990s and 2000s Lennox installs: Many older Fort Lauderdale homes with original Lennox systems have duct board that is losing its integrity. The humidity gets into the board, and over time it starts shedding glass fibers into supply registers. Homeowners notice white or gray specks on surfaces near vents. We remove compromised duct board and seal or replace the affected runs. This is a Fort Lauderdale-specific problem: the same duct board in a dry climate can last decades longer, but coastal humidity accelerates the breakdown.
- Biofilm on evaporator coils in XC21 and XC25 systems: On Lennox XC21 and XC25 systems, we regularly find the evaporator coil coated in a biofilm layer because the return duct was never sealed at the platform. The blower pulls attic air across the coil, and that air carries dust, insulation particles, and moisture. The result is a coil that restricts airflow and grows microbial buildup. Coil cleaning is part of the duct service here, not a separate upsell. If the return is not sealed first, cleaning the coil only buys you a few months.
- Variable-speed blowers in SLP99V furnaces caked with lint and dust: The SLP99V is a high-end variable-speed furnace, and its blower moves a lot of air. When homeowners run the fan in the “On” position for air cleaning but skip duct cleaning for five or more years, that blower wheel gets coated in gray lint and fine dust. The motor works harder, static pressure climbs, and the system loses efficiency. Fort Lauderdale’s humidity makes this worse because the dust sticks instead of staying loose. We clean the blower housing and wheel as part of the job.
- Flex duct sagging and pinching on Merit Series installs: Merit Series systems, like those built around the ML180 furnace or 13ACX condenser, are often installed with flex duct runs through hot attics. Fort Lauderdale attics hit 130 to 140 degrees in summer. Flex duct sags over time, and when it pinches, airflow drops. Low airflow concentrates moisture inside the supply duct, and that is where mold starts. We re-support and straighten flex runs, and when a run is collapsed beyond saving, we tell you and quote replacement honestly.
- Salt air corrosion in beachfront and Intracoastal high-rises: In Fort Lauderdale condo buildings along the beach and Intracoastal, salt spray infiltrates common-ventilation ductwork. Metal duct components corrode faster than inland systems, and the rust creates a persistent musty odor that residents often blame on the ocean. It is not the ocean. It is contaminated ducts. We clean and seal these systems with corrosion in mind, using materials rated for coastal exposure.
Lennox Parts & Our Repair-vs-Replace Approach
For Lennox equipment, we use OEM filters and access panels when exact dimensions are required. If you have a Signature Collection air handler, the factory panel is built to specific tolerances, and a close-enough replacement panel can alter airflow and static pressure. So we use OEM there. For duct sealing and insulation, we use commercial-grade mastic, UL181 tape, and duct board that meet or exceed the original factory material. This is where we tell you the truth a dealer might not: the original duct material on many older Fort Lauderdale Lennox installs has already failed. Replacing it with the same thing is a mistake. We upgrade the material where the climate demands it.
On repair versus replace, our rule is plain. We do not repair a duct that should be replaced. If your Lennox flex run is collapsed, mold-riddled, or torn beyond sealing, we say so and quote replacement. We will not seal a duct that needs to go in the trash just to make the bill look lower today and bigger next year. Call (754) 354-3644 for an honest assessment.
Our Lennox Service Process – Step by Step
- 1
Diagnosis and video inspection: We start with a camera inspection of the duct interior. On Lennox systems in Fort Lauderdale, we are specifically looking for the failure modes above: fiberglass shedding, coil biofilm, blower buildup, flex duct sag, and salt corrosion. The video shows you exactly what we found, and it gives us a written record before any work begins.
- 2
Written price before any work: After the inspection, we hand you a written price. That number does not move at the door. You know what the Lennox service costs before we open a single access panel. Every job is priced this way, no exceptions.
- 3
Cleaning and sealing by the book: We run the Rotobrush rotary brush system through the supply and return runs, and the Nikro negative-air machine keeps the dust we dislodge from re-entering your home. We clean evaporator coils, blower wheels, and air handler interiors. We seal returns with mastic, re-support sagging flex runs, and replace duct board or flex that has failed.
- 4
Test and verify: After the work, we run the system and check static pressure and airflow. We match the blower behavior to the Lennox equipment spec. If your SLP99V or XC25 was struggling before, we show you the numbers after. A spotless duct system on a properly sealed return moves air differently, and you can feel it.
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365-Day Done Right Promise: Every Lennox job is covered in writing for a full year. If the work fails within that year, we return and make it right at no charge, including a free second visit. That is the Garrison Standard in writing, not a vague guarantee.
See the difference
Before
After
Before
After
Before
AfterLennox Products We Service & Install in Fort Lauderdale
We service and install ductwork on the full Lennox residential lineup in Fort Lauderdale, and we also provide Lennox repair in Pompano Beach. That includes the Dave Lennox Signature Collection: SL28XCV air conditioners, SLP99V variable-speed gas furnaces, XC20 and XC25 condensing units, and CBA series air handlers. We work on Elite Series systems like the EL296V furnace and XC16 air conditioner. We also handle Merit Series equipment, including the ML180 furnace and 13ACX condenser. For replacement parts, we stock OEM Lennox filters and access panels locally where exact dimensions matter. For duct sealing, insulation, and replacement materials, we stock commercial-grade mastic, UL181 tape, and duct board.
We Also Service These Brands
We are not a single-brand shop. While this page is about Lennox, our Fort Lauderdale crew works on Trane and Carrier duct systems as well. The same Fort Lauderdale conditions that degrade Lennox ductwork attack every brand. Our process does not change: inspect, price in writing, clean, seal, and stand behind the work for a year.
FAQs – Lennox Air Duct Cleaning Service in Fort Lauderdale
No. We are an independent Lennox service provider, not a factory-authorized dealer. That independence means we make recommendations based on what your ductwork actually needs, not what a dealer program incentivizes. The trade-off is straightforward: we do not have a Lennox badge on our van, but we also do not have a Lennox sales quota.
For filters and access panels on Lennox air handlers and furnaces, yes, we use OEM parts because exact dimensions matter for static pressure and airflow. For duct sealing, insulation, and replacement materials, we use commercial-grade mastic, UL181 tape, and duct board that meet or exceed original factory specifications. Some jobs call for OEM. Some jobs call for better than OEM. We tell you which is which.
Most single-family Lennox systems in Fort Lauderdale take between four and eight hours depending on the number of returns, the condition of the duct runs, and whether coil cleaning and air handler cleaning are included. Homes with fiberglass duct board replacement or sagging flex runs take longer. We give you a written timeframe with the written price, so you know before we start.
Signature Collection (SL28XCV, SLP99V, XC20, XC25, CBA air handlers), Elite Series (EL296V, XC16), and Merit Series (ML180, 13ACX). If you have a Lennox system in Fort Lauderdale that is not on this list, call (754) 354-3644 and tell us the model number. Chances are we have worked on it.
No. Cleaning your ductwork does not void the warranty on your Lennox furnace, air conditioner, or air handler. However, poorly done duct sealing or careless access panel removal can cause damage that a warranty claim might not cover. That is why we use OEM panels where dimensions matter and follow the equipment’s service specifications. If a warranty issue comes up, we document the work with video so you have a record.
The most common cause we find in Fort Lauderdale is restricted airflow across the heat exchanger, and the restriction is almost always in the duct system, not the filter. Dirty evaporator coils, collapsed flex runs, or a return duct pulling attic air across a clogged coil all reduce airflow. The SLP99V has tight tolerances for static pressure. When airflow drops, the high-limit switch trips to protect the heat exchanger. Cleaning the ducts and sealing the return usually resolves it. Call (754) 354-3644 and we will inspect the system and show you the restriction on video.
No, and this is a common misdiagnosis. On systems using the iComfort thermostat, the “Check Filter” reminder runs on a timer unless it is configured for actual static pressure monitoring. If it is set to a time interval, it will remind you on schedule regardless of how clean the filter is. But if the system is monitoring static pressure, the real cause is usually restricted airflow in the duct system, not the filter itself. A dirty blower wheel, a clogged evaporator coil, or sagging flex runs all raise static pressure. The thermostat is reporting a real problem in the wrong place.
Yes, and this is one of the more expensive lessons we see in Fort Lauderdale. The XC25 is a variable-capacity unit that adjusts output based on demand. When the duct system is restricted, the equipment runs longer cycles to satisfy the thermostat. Longer cycles mean more wear on the compressor and blower motor, and in Fort Lauderdale’s humidity, longer cycles also mean more moisture accumulation across the coil. The equipment is engineered for clean ductwork and proper static pressure. A restricted system makes an expensive piece of engineering work like a builder-grade unit, and it shortens the service life while it is doing it.
Yes. A PureAir system treats air passing through the unit, but it does not remove dust, lint, or mold already built up inside the supply and return duct runs. In Fort Lauderdale, that accumulated material inside the ducts is exactly what feeds ongoing microbial growth. The PureAir system helps with air passing through it. It cannot clean the duct walls downstream. You still need the ducts cleaned, and the evaporator coil and blower wheel inspected, if the PureAir system is going to do its job.
When flex ducts on a Merit Series system in Fort Lauderdale have visible mold growth inside, the duct runs need to be replaced, not cleaned. Mold penetrates the inner liner of flex duct, and no brush cleaning removes it completely. The source also needs correction: the sagging or pinching that created the low-airflow condition, or the moisture source in the attic. We remove the affected runs, address the airflow problem, and replace with properly supported flex duct. Call (754) 354-3644 for an inspection and a written quote.
For a typical single-family Lennox system in Fort Lauderdale, full Air Duct Cleaning services run between $450 and $950 depending on system size, number of returns, and whether coil cleaning and air handler cleaning are included. If fiberglass duct board replacement or mold-riddled flex duct replacement is required, the price goes higher and we quote that separately in writing. We do not quote per-vent prices or teaser rates. The price we write down before work starts is the price you pay. Call (754) 354-3644 for an exact quote, and the estimate is free.
Cheap duct cleaning quotes almost always mean one of two things: a crew that shows up with a shop vac and a brush, or a low teaser price that balloons once the technician is inside your home. Negative-air machines and rotary brush systems are expensive to buy and run, and they are the only tools that actually clean the full duct system. When a quote is dramatically lower than the range above, ask what equipment they use and whether the price is written before they start. If the answer is vague, that is your answer. We quote the whole system, in writing, before any work begins, and that number does not move.
We video-inspect the duct system before and after every Lennox job in Fort Lauderdale. You see the buildup, the coil condition, the sagging flex, and the blower wheel on camera before we start. After the work, we run the same camera through the system and show you the result. You are not taking anyone’s word for it. The video is your record. Clean ducts move air. Everything else is just noise.
Book Your Lennox Service in Fort Lauderdale, FL
Call (754) 354-3644 to schedule a video inspection and get a written price for your Lennox air duct cleaning in Fort Lauderdale. We service Signature, Elite, and Merit Series systems, and every job is covered by the 365-Day Done Right Promise in writing. Roy Castellanos and the Hollis Air Duct Fort Lauderdale crew will show up inside the window, price it before we touch it, and leave your system moving air the way Lennox designed it to.
Written by Roy Castellanos, Owner at Hollis Air Duct Fort Lauderdale, serving Fort Lauderdale since 2004.