Supply Duct Cleaning in Miami, FL

Supply Duct Cleaning in Miami, FL

Supply duct cleaning in Miami typically costs $285 – $480 for an average single-family home, with most jobs completed in 3 to 5 hours. The work involves removing built-up dust, debris, and microbial growth from the ductwork that carries conditioned air from your AC air handler to the vents in each room. At Hollis Air Duct Miami, we clean supply ducts using negative-air extraction and rotary brush agitation, and every job starts with a Video Inspection and a written price before we touch the first vent register.

Most Miami homes run air conditioning eight to ten months out of the year. That means the supply side of your duct system moves thousands of cubic feet of air per hour, season after season, in a climate where humidity sits above 70 percent for long stretches. When supply ducts get dirty, the same air that cools your living room is pushing that dust back into the air you breathe. If you’re noticing dust settling on furniture within days of cleaning, or you can see buildup on your vent covers, it’s worth a closer look. Call us at (850) 660-3272 and we’ll talk through what you’re seeing before you spend a dollar.

This page covers what supply duct cleaning actually involves, what it costs in the Miami market, signs that your supply side needs attention, and how our process works from arrival to final walkthrough. If you want the broader picture on duct cleaning across the whole system, start with our Air Duct Cleaning in Miami page, then come back here for the supply-side specifics.

Key Takeaways

• Miami price range: $285 – $480 for a typical single-family home; larger homes with long duct runs or multiple air handlers run higher.
• Time on site: Most supply duct jobs finish in 3 to 5 hours, including setup and final walkthrough.
• What we use: Rotobrush rotary brush systems paired with Nikro negative-air machines to dislodge and extract debris without blowing it into the house.
• The guarantee: Every job is covered by the 365-Day Done Right Promise in writing. If it’s not done right, we return and make it right at no charge.
• Pricing rule: Written before work starts. The number on the sheet is the number on the invoice.

When You Need Supply Duct Cleaning

Supply ducts are the outbound side of your HVAC airflow. They carry cooled, dehumidified air from the air handler coil to each register in every room. Because Miami homes lean on AC so heavily, supply ducts accumulate dust, pet dander, skin cells, and in some cases mold or mildew from condensation inside the duct walls. Here are the signs homeowners in Miami tell us about most often:

• Dust returns within 48 hours of cleaning surfaces. You wipe down a dresser in Kendall or Coral Gables and two days later there’s a visible film again. That dust is being delivered through the supply registers, not drifting in from windows.
• Vent covers look dirty or streaked. Dark streaks around supply registers, especially in bedrooms, are often dust and fine particulate that has been blowing out for months or years.
• Uneven airflow between rooms. One bedroom stays cold, another never quite cools. While this can be a damper or design issue, it’s frequently compounded by dust and debris loading inside the supply duct reducing the effective diameter.
• You renovated or had major work done. Drywall dust, paint overspray, and construction debris get pulled into the return side and pushed through the supply side. In Miami’s condo buildings, a renovation three floors down can introduce fine dust into shared chases that end up in your supply runs.
• Visible mold or a persistent musty smell from the vents. Miami’s humidity makes supply ducts a candidate for moisture problems, particularly in homes where the AC cycles off for long periods during vacation season. A musty odor that intensifies when the blower kicks on is worth investigating.
• Allergy or respiratory symptoms that improve when you leave the house. If someone in the household breathes better at an office, a hotel, or a relative’s place but struggles at home, the supply air stream is a reasonable place to examine.

Not every dirty vent needs a full system cleaning, and sometimes the problem is the return side pulling unfiltered air in, not the supply side pushing it out. That’s a distinction we make during the inspection, and we’ll tell you plainly which side is the issue before we propose any work. You won’t get a blanket “clean everything” pitch from us. You’ll get a read on your actual ductwork.

Our Supply Duct Cleaning Process

Here’s how we approach supply duct cleaning on a typical Miami home. Every step follows The Garrison Code, which is the operating standard we hold ourselves to on every job: arrive inside the quoted window, price in writing before work starts, do the work by the book, and leave the site clean.

1. Arrival and orientation. We show up inside the window we quoted, in uniform, with identification. Before equipment comes off the truck, we walk the house with you and confirm the scope: which supply runs, how many registers, and any rooms that need special attention or protection.
2. Pressure and airflow check. We check the static pressure and airflow at the air handler and spot-check register output before cleaning. This gives us a baseline and helps us spot airflow problems that cleaning alone won’t fix, like collapsed flex duct or a failing blower.
3. Protect the house. We cover the work area, lay down floor protection where equipment will travel, and seal off registers that aren’t being actively cleaned to prevent cross-contamination.
4. Negative-air setup. We connect a Nikro negative-air machine to the supply plenum. This creates continuous suction pulling air through the duct system and into HEPA-rated filtration. The house is never used as the filter.
5. Rotary brush agitation. A Rotobrush rotary brush system travels through the supply runs, dislodging caked dust, debris, and film from the interior duct surfaces. The brush never goes into the duct without the negative-air machine running.
6. Register and grille cleaning. Every supply register and vent cover is removed, cleaned, and reinstalled. We don’t clean the duct and leave dirty grilles back over the top, because that defeats the purpose in about a week.
7. Final walkthrough. We show you the before-and-after in the ducts we cleaned, confirm that all registers are back in place and properly seated, and go over what we found. The site is left clean. You get the same written price you got before the job started.

The negative-air method matters in Miami because of the way homes are built. Many Miami-area homes are on slabs with long flex-duct runs through hot attic spaces, and pushing compressed air through dirty ducts just relocates the dust into the house. Negative air keeps the debris moving in one direction: out of your ducts and into the filtration unit.

Supply Duct Cleaning Pricing in Miami

Supply duct cleaning in the Miami market generally runs $285 to $480 for a single-family home with one air handler and 8 to 12 supplies-see our full guide to How Much Does Air Duct Cleaning Cost? (2026 Price Guide) - Miami, FL for more detail. Condos and townhomes typically fall on the lower end of that range because the duct runs are shorter and access is easier. Larger homes, houses with two air handlers, and supply duct systems that haven’t been cleaned in more than a decade run higher, sometimes up to $700 or more.

Here’s a breakdown of what shapes the price:

Factor	How It Affects the Price
Number of supply runs and registers	More runs mean more duct lengths to clean, more registers to remove and rinse, and more time on the job.
Home size and number of air handlers	A 3,500-square-foot home with two systems is essentially two jobs in one day. A 900-square-foot condo is a half-day.
Duct accessibility	Attic access in a Miami summer is brutal and slow. Ducts in a drop ceiling or chase are faster to reach but often tighter to work in.
Condition of the ducts	Light dust buildup is predictable. Heavy caked-on debris, construction dust, or signs of moisture add time and sometimes require a second pass.
Presence of mold or microbial growth	If we find mold during inspection, cleaning alone is not the fix. We’ll tell you what we’re seeing and recommend the right next step, which may include duct replacement or sealing, not just brushing.
Filter replacement	If your filters are loaded, we’ll recommend replacements on the spot without markup games. We carry common sizes and can source specialty sizes quickly.

Here’s the honest part: anyone quoting a flat $99 whole-house duct cleaning in Miami is not telling you the truth about what the job takes. Those prices are set to get a technician in the door so the real number can be invented after the fact. At Hollis Air Duct Miami, the price is written down before we start, and it does not move at the door. Period. The number on the sheet is the number on the invoice.

Free estimates are part of how we work. Call (850) 660-3272, tell us about your home, and we’ll give you a real range over the phone. If you want certainty, we’ll schedule the inspection and give you a written number before any work is authorized.

How Supply Duct Cleaning Fits Into the Broader Air Duct Cleaning Picture

Supply ducts are half the circuit. Air in your HVAC system moves in a loop: return ducts pull air from the house back to the air handler, the air passes through the filter and over the coil, and supply ducts carry the conditioned air back into the living spaces. A thorough Air Duct Cleaning addresses both halves, because cleaning only the supply side while the return side stays packed with dust just means you’ll be re-cleaning the supply runs within a year or two.

That said, there are cases where the supply side is the clear priority. If the return side is in decent shape but supplies are caked from years of running unfiltered or under-filtered air, a supply-focused clean is the right scope. We’ll tell you what we’re seeing during the inspection and recommend the scope that matches the condition of your actual ductwork. You’ll never get an upsell from us on work that isn’t indicated by what we find.

Miami’s specific conditions make supply duct cleaning a recurring need for many homeowners. The combination of heavy AC runtime, high humidity, and the amount of time Miami residents spend inside conditioned air means the supply side carries a heavier load than in dryer climates. In neighborhoods like Doral, Kendall, Coral Gables, Hialeah, and Little Havana, we see supply ducts that have accumulated five, ten, even fifteen years of fine particulate because the homes have never had a proper cleaning since construction.

What to Expect From a Hollis Air Duct Miami Technician

Every technician on our truck is background-checked and uniformed. You’ll know who’s walking into your home before they arrive, because the office tells you the name and gives you a window that we actually keep. We answer our phones with a live person, 24 hours a day, seven days a week. If you call at 2 a.m. with a question about your ducts, a human picks up. No voicemail loops, no “waiting until Monday.”

The equipment we run is the same class of gear commercial duct cleaning crews use. Our Nikro negative-air machines move enough air to hold the ductwork under proper negative pressure while the Rotobrush systems agitate the interior surfaces. We use Guardsman filtration products where applicable, and we carry Honeywell filters for common residential configurations. The tools are professional-grade, and we’ll explain what they do in plain English while we work, because you shouldn’t need a trade dictionary to understand what’s happening in your own house.

Roy Castellanos leads the operation personally. If you call the office, you may well end up talking to Roy or someone who’s been with the company long enough to speak with the same authority. Since 2004, Hollis Air Duct Miami has been part of the Garrison Partners family, operating under The Garrison Standard that applies to every independently owned and operated location.

FAQs – Supply Duct Cleaning

How much does supply duct cleaning cost in Miami?

Supply duct cleaning in Miami typically costs $285 to $480 for a single-family home with one air handler and 8 to 12 supply registers; for Miami Beach pricing specifically, see How Much Does Air Duct Cleaning Cost in Miami Beach, FL? (2026 Price Guide). Condos and townhomes usually run on the lower end, while larger homes with long flex-duct runs, two air handlers, or heavy buildup run higher. Call (850) 660-3272 for a free estimate and we’ll give you a real range over the phone before any work is scheduled.

How long does supply duct cleaning take?

Most supply duct cleaning jobs in Miami take 3 to 5 hours from arrival to final walkthrough, including setup, cleaning, and putting everything back in place. Larger homes with multiple air handlers or long attic runs can take a full day. We’ll give you a time estimate before we start, and we keep to it.

Is supply duct cleaning worth it, or is it a scam?

Supply duct cleaning is worth the cost when the ducts are actually dirty, which in Miami’s climate happens regularly due to heavy AC use and high humidity. A reputable company will show you the inside of the ducts before and after cleaning, and will tell you if cleaning is not the solution. The scam in this industry is the $99 bait-and-switch price. Hollis Air Duct Miami gives you a written price before work starts, and the price does not move. Every job is covered by the 365-Day Done Right Promise. If it’s not done right, we return and make it right at no charge.

Can you clean just the supply ducts, or do you have to clean the returns too?

You can absolutely clean just the supply side, and in some Miami homes that’s the correct scope. We’ll inspect both sides and tell you what the condition of your return ducts is before recommending anything. If returns are clean and supplies are loaded, a supply-focused job is the right call. If both sides are dirty, cleaning only one side is a partial fix that will need repeating sooner. We don’t sell scope that isn’t indicated by the condition of your ductwork.

Do you offer same-day supply duct cleaning in Miami?

We do our best to accommodate same-day or next-day requests, and our phones are answered live 24/7 so you can reach us the moment you know you have a problem. Same-day availability depends on the current schedule, which we’ll tell you honestly. Call (850) 660-3272 and ask. If we can’t get to you today, we’ll give you the next available date with a firm arrival window.

Why Miami Homeowners Call Hollis Air Duct Miami for Supply Duct Cleaning

The air duct cleaning trade has a reputation problem, and we earned our reputation by doing the opposite of what gave the trade its bad name. No fake $99 specials. No price that blooms after the technician has a look around. No crew that leaves dust, equipment footprints, and missing vent covers behind. No disappearing after the check clears. We’ve been doing this since 2004 as part of the Garrison Partners family, and the standard is written down, because “trust us” isn’t a plan and promises that vanish in the air don’t help anyone.

Roy Castellanos and the Hollis Air Duct Miami team operate on a simple arrangement, and we put it on every job: arrive inside the quoted window, give the price in writing before work begins, do the work by the book, and leave the site clean. If we miss on any part of that, the 365-Day Done Right Promise covers you. We come back and make it right at no charge, including a free second visit. That’s not marketing language. It’s the contract.

If your supply ducts haven’t been cleaned in years, or you’re seeing dust and buildup around your vent covers, or you just want a straight answer about what’s happening in your ductwork, call (850) 660-3272. We’ll talk through what you’re seeing, give you a real price range, and if you want us on site, we’ll be there inside the window we quote, with a written price in hand before we start.

Written by Roy Castellanos, Owner at Hollis Air Duct Miami, serving Miami.