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.
Styles & brands we work with
See the difference
Before
After
Before
After
Before
AfterHow Much Does Air Quality & Sanitizing Cost in Miami?
Air quality and sanitizing service in Miami typically costs between $295 and $685 for a full-home treatment of a single-family residence. Most jobs land in the $325 to $450 range for homes between 1,500 and 2,500 square feet. The final number depends on the treatment area size, the condition of the ductwork, and whether you add whole-home UV purification or odor control.
We’ll break down every line item below so you know exactly what you’re paying for before you pick up the phone. No surprises, no price jumps at the door. That’s how Hollis Air Duct Miami has operated since 2004 under The Garrison Standard: written prices, written guarantees, and a 365-Day Done Right Promise on every job.
Key Takeaways
- Full-home air quality and sanitizing in Miami runs $295 to $685, with most homes between $325 and $450.
- Condos and small apartments fall between $195 and $325 because the duct systems are shorter and simpler.
- Antimicrobial fogging, UV light installation, and odor treatment add $125 to $450 depending on equipment and scope.
- Pricing is written down before any work starts and does not move at the door.
- Every Hollis Air Duct Miami job is covered by a 365-Day Done Right Promise, in writing.
Air Quality & Sanitizing Cost Breakdown (2026)
Here are the numbers we quote most often in Miami, from Coral Gables to Kendall to Aventura. These prices reflect 2026 market rates and assume a single-family home with standard access to the air handler and return plenum.
| Service | What It Includes | Typical Miami Price Range |
|---|---|---|
| Whole-home duct sanitizing | Antimicrobial fogging applied through the full duct system after cleaning. | $295 – $685 |
| Air handler and coil sanitizing | Cleaning and sanitizing the evaporator coil, drain pan, and blower housing. | $145 – $285 |
| UV germicidal light installation | Lamp mounted at the coil to control mold and microbial growth year-round. | $425 – $850 |
| Odor treatment and neutralization | Targeted treatment for smoke, pet, cooking, or musty odors inside ducts. | $125 – $350 |
| Whole-home filtration upgrade | Media cabinet or HEPA-level filtration from Aprilaire, Honeywell, or Guardsman. | $250 – $600 |
| Condominium or townhouse treatment | Smaller duct footprint, fewer supply vents, shorter runtime. | $195 – $325 |
| Duct sealing with sanitizing | Aeroseal-style or mastic sealing plus full sanitizing pass. | $450 – $1,100 |
Those numbers move up or down for reasons that are specific to Miami homes. A 1950s Coral Gables rancher with hard-pipe metal ducts and tight attic access will take longer to treat than a 2015 Kendall two-story with flexible duct in an open attic. If the existing duct insulation is damp or the coils show evidence of bio-growth, remediation adds time and cost before the sanitizing pass even begins.
We price every job in writing before we touch anything. The number on the quote is the number you pay. If the technician finds something unexpected inside the air handler, we stop, show you, and reprice in writing before proceeding. No add-on games. That’s The Garrison Standard.
Every sanitizing job we run includes our professional-grade equipment: Rotobrush rotary brush systems for mechanical cleaning, Nikro negative-air machines to keep contaminants from recirculating, and antimicrobial fogging agents applied through the entire duct network. We’re not running a hardware-store fogger. We use the same class of equipment commercial crews run in hospitals and office towers.
What Affects Air Quality & Sanitizing Pricing in Miami
When you’re comparing quotes across Miami air quality and sanitizing companies, here are the factors that should be moving the number, and the ones that shouldn’t.
- Square footage and number of supply vents. A 1,200-square-foot condo in Brickell with eight vents costs less to sanitize than a 3,800-square-foot Pinecrest home with twenty-two vents. More lineal footage of duct means more fogging time, more product, and more labor. This is the single biggest pricing driver.
- Duct system configuration and access. Miami homes built before 1990 often have rigid metal ducts in cramped attics with low clearance. Flexible duct in modern homes is faster to access but more prone to leaks that need addressing. Attics in South Florida routinely hit 120 degrees in summer, which affects a technician’s working time. That’s a real cost factor, not an excuse.
- Condition of the existing ductwork. If the ducts haven’t been cleaned in years, or if there’s visible dust, pet hair, or biological growth on the coil, the sanitizing pass takes longer and requires a heavier antimicrobial application. Homes near salt water, like Key Biscayne or Coconut Grove, see accelerated corrosion on coils and fasteners. We inspect before we quote.
- Presence of mold or microbial growth. If testing or visual inspection confirms microbial activity in the ductwork, sanitizing is no longer optional or basic. The treatment requires a stronger antimicrobial agent, sometimes multiple application passes, and verification afterward. This adds between $125 and $300 in most cases. It is not something to skip. If it’s present, treat it before it spreads into the living space.
- Add-on purification equipment. UV lights, media cabinets, HEPA filtration systems, and whole-home dehumidifiers all add cost. A UV lamp from Aprilaire installed at the coil typically runs $425 to $850 installed. A whole-home media cabinet with higher MERV filtration typically adds $250 to $600. These are worth considering in Miami’s humidity, but they are separate from the sanitizing pass itself.
- Miami’s humidity and its effect on indoor air. We see different air quality jobs in Miami than in dry climates. The constant moisture load means coils stay damp longer. That means more microbial pressure inside the air handler, which means sanitizing the coil and the drain pan should happen at the same time as duct sanitizing. Skipping one to save a hundred dollars is a false economy in our climate.
Homes across the Miami metro face additional environmental factors. If you live near major construction corridors like the I-95 expansion zones, or in areas with heavy seasonal pollen like the mango and oak trees in South Miami, your ducts are ingesting more particulate than a suburban home elsewhere in Florida. That means your sanitizing dollar goes further when combined with a full duct cleaning first. You can learn more on our home page about how we approach both services together.
Air Quality & Sanitizing vs. Standard Duct Cleaning
These are separate services and we want you to know the difference before you spend.
Duct cleaning is mechanical removal of debris: dust, pet dander, construction dirt, the accumulated film that lines the duct walls. It happens with a rotary brush system like our Rotobrush units running through the main trunk lines and branch runs, paired with a negative-air machine that creates draw through the system so nothing blows back into your living room.
Air quality and sanitizing is the chemical and equipment pass that kills biological contaminants: mold spores, bacteria, mildew, and the microorganisms that thrive in Miami’s humidity. We fog an antimicrobial agent through the entire duct system after cleaning. We treat the coil, drain pan, and blower housing. We install or activate purification equipment if you’ve chosen that upgrade.
One does not replace the other. Clean ducts can still carry biological load. A sanitized duct system can still be physically dirty. Doing both together is the standard we recommend, and it’s the standard we’ve run since 2004 under the Garrison Partners family.
For a closer look at the sanitizing side of the equation, our Air Quality & Sanitizing in Miami page covers the process step by step.
How Much Does Duct Cleaning Cost in Miami Before Sanitizing?
You’ll often see duct cleaning and sanitizing quoted together. Here’s what the duct cleaning half typically runs in Miami, so you can see the combined picture.
- Small condo or apartment (under 1,000 sq ft): $250 – $395
- Single-family home (1,500 to 2,500 sq ft): $325 – $525
- Larger home (2,500 to 4,000 sq ft): $450 – $750
- Each additional return or supply line beyond the standard count: $15 – $30 per run
When you combine a full duct cleaning with the sanitizing pass, most Miami homeowners land in the $525 to $900 range for the complete job. That’s cleaning plus sanitizing plus coil treatment, with every line item priced in writing before we start. If a competitor quotes you $199 for “duct cleaning and sanitizing” in Miami, ask what exactly they’re sanitizing and with what equipment. The answer usually explains the price difference.
Can You Do Air Quality & Sanitizing Yourself?
You can change a return filter. You can wipe a condenser coil outside. But sanitizing the full duct network is not a DIY job with a landlord-grade fogger from a hardware store.
Here’s why. The antimicrobial products used in professional duct sanitizing are applied under negative air pressure so that the fog carries uniformly from the trunk line through every branch run and back through the return. If you spray a can into one supply vent, you’ll treat about three feet of duct. The rest of the system stays untouched. And if you over-apply in a closed space, you’re now breathing chemical runoff in your own home.
There’s also the safety question with biological growth. If you suspect mold in your ducts, opening panels and poking around will send spores airborne into your living space. You want a trained professional who can inspect, contain, clean, and sanitize in that order. Not every company has the discipline for that sequence. We do, because Roy Castellanos and the Hollis Air Duct Miami team have been running this process under The Garrison Standard since before most Miami competitors existed.
How to Save on Air Quality & Sanitizing Without Cutting Corners
The goal is not the cheapest bid in Miami. The goal is a defensible price from a crew that does the work by the book. Here’s how to get there.
- Bundle cleaning with sanitizing. Most companies, including Hollis Air Duct Miami, price the combined job lower than the two services quoted separately. You’re already in the system, the coil is open, and the negative-air machine is running. Adding the sanitizing pass at that moment is more efficient for us and slightly cheaper for you.
- Ask what the sanitizing pass actually includes. Before you compare quotes, call each company and ask two questions: “What equipment do you use for the sanitizing pass?” and “Does your price include the coil and drain pan or just the ducts?” If a company can’t answer those two questions clearly, take them off the list.
- Do not skip the pre-cleaning pass. Sanitizing dirty ducts means you’re fogging antimicrobial onto a dust layer instead of onto clean metal and flex duct surfaces. The product does its job much better after mechanical cleaning. Skipping cleaning to save the $300 to $500 on the combined job means you’re paying for a sanitizing pass that won’t perform the way it should.
- Replace your filter with the right MERV for your system. After sanitizing, the fastest way to undo the work is running a clogged or wrong-spec filter. We’ll tell you what filter your system needs and when to change it. No upcharge for that advice. It’s part of the job.
- Ask about free estimates. A legitimate Miami air quality and sanitizing company should quote you in writing before touching your ducts. Hollis Air Duct Miami does exactly that. Call (850) 660-3272 and we’ll schedule a walkthrough and written estimate at no cost. No obligation, no door pressure.
FAQs – Air Quality & Sanitizing Cost
How much does air quality and sanitizing cost in Miami in 2026?
Expect to pay between $295 and $685 for a full-home air quality and sanitizing treatment in Miami. Most single-family homes between 1,500 and 2,500 square feet land between $325 and $450. That includes the antimicrobial fogging pass through the full duct system and treatment of the coil and drain pan. Call (850) 660-3272 for a written estimate so you know your exact number before any work starts.
Is it cheaper to clean ducts or to sanitize them?
Sanitizing alone typically costs $295 to $685 in Miami, while duct cleaning alone runs $325 to $525 for a typical single-family home. Cleaning is the more physically demanding labor; sanitizing involves the chemical application and coil treatment. Doing both together is usually the better value per dollar because the sanitizing pass is more effective on clean surfaces.
How long does air quality and sanitizing take?
Most Miami homes take between 2 and 4 hours for the full cleaning and sanitizing combination. A larger home with extensive duct runs or a compromised coil can take up to 6 hours. When we quote a window, we arrive inside that window. That’s the standard, not a target.
Does air quality and sanitizing remove mold in Miami ducts?
The sanitizing process kills mold and bacterial growth on duct surfaces, coils, and drain pans. In cases of heavy surface growth, we apply multiple antimicrobial passes and sometimes recommend a follow-up verification visit. If you suspect mold in your Miami ducts, call (850) 660-3272 first. Opening the system and checking it yourself will send spores airborne into your living space.
What does the 365-Day Done Right Promise cover on sanitizing jobs?
Every Hollis Air Duct Miami sanitizing job is covered by our 365-Day Done Right Promise, in writing. If the work fails within a year, whether it’s a return of odor or a recontamination issue tied to our service, we come back and make it right at no charge. That includes a free second visit. Not negotiated, not conditional. That’s the promise.
Why Miami Homeowners Call Hollis Air Duct Miami for Air Quality Work
When someone in Miami tells us they’ve been burned by a duct company before, we know exactly what happened. The company quoted a number over the phone, sent a tech who found “problems” once the panels came off, and the price doubled before lunch. That’s not how we work and it never has been.
Hollis Air Duct Miami was founded in 2004 as part of the Garrison Partners family. We run every job under The Garrison Standard: arrive inside the window we gave you, price everything in writing before we start, do the work by the book, and leave your home cleaner than we found it. Roy Castellanos and our team operate in Miami with background-checked, uniformed technicians. When you book with us, you know who’s walking through your door before they arrive.
We run Rotobrush rotary brush systems for mechanical duct cleaning. We run Nikro negative-air machines so contaminants pull out of your home instead of recirculating into it. We install and service filtration from Honeywell, Aprilaire, and Guardsman, and we run Abatement Technologies equipment where the job calls for containment-grade work. These are commercial-grade tools, not hardware-store gear. That matters in Miami’s humidity, where cheap equipment fails fast and costs you more in the long run.
Our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queue, no waiting until Monday to get an answer about the air in your home.
Get a Written Estimate for Your Miami Air Quality & Sanitizing Job
The fastest way to get your exact price is a phone call. We’ll ask about your square footage, your duct configuration, and what you’re experiencing: musty smells, allergy symptoms, visible dust, condensation on the vents. Then we’ll schedule a walkthrough and put the number in writing.
Call (850) 660-3272 today for a free, written estimate on air quality and sanitizing in Miami. If it’s after hours, a live person still answers. If you’re not ready to book, that’s fine. We’ll give you the information you need to compare quotes properly. That’s how we’ve done it since 2004, and it’s how we’ll keep doing it.
Pricing reflects the Miami market as of 2026. Hollis Air Duct Miami offers free estimates – call (850) 660-3272.
Written by Roy Castellanos, Owner at Hollis Air Duct Miami, serving the Miami metro area since 2004.
What Our Customers Say
"Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q."No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L."Careful with the carpet and furniture. Even wiped down the vent covers before putting them back."
- Leo B.