Commercial Duct Cleaning in Miami, FL

Commercial Duct Cleaning in Miami, FL

Commercial duct cleaning in Miami typically costs between $0.25 and $0.50 per square foot, with most small-to-mid-size office and retail spaces landing in the $1,200 to $3,500 range depending on system size, accessibility, and how long it’s been since the last cleaning. For restaurants, medical offices, and buildings near Biscayne Bay or the Port of Miami, the price shifts upward because salt air, kitchen grease, and constant humidity load the ductwork faster than in drier climates. Hollis Air Duct Miami has been doing this work since 2004, and we price every commercial job in writing before we touch a single vent. For a more comprehensive approach, ask about our Full System Cleaning. That’s the Garrison Standard, and we’ve held to it for over 20 years.

This page explains what commercial duct cleaning actually involves, when a Miami business needs it, what it costs, and how we handle the work without disrupting your operation. If you already know you need it done, call us at (850) 660-3272 and we’ll get you a written quote. If you’re still figuring out whether it’s time, keep reading. We also handle residential Air Duct Cleaning if you need it for a home.

Key Takeaways

• Commercial duct cleaning in Miami runs roughly $0.25 to $0.50 per square foot, with most jobs between $1,200 and $3,500
• Miami’s humidity and salt air mean systems here need attention more often than inland cities
• Hollis Air Duct Miami uses negative-air machines and rotary brush systems, the same class of equipment used in hospitals and cleanrooms
• Every commercial job gets a written price before work starts and the 365-Day Done Right Promise in writing
• We schedule around your business hours so you don’t close down for the job

What Commercial Duct Cleaning Actually Is

Commercial duct cleaning means removing the buildup inside the supply and return ductwork that carries conditioned air through a building. In a Miami office, that buildup is usually a mix of dust, mold spores, insect debris, and the fine salt residue that works its way off the ocean and into every HVAC intake along Brickell, Downtown, Coral Gables, and anything east of I-95. In restaurants, it’s grease vapor that condenses inside the ducts. In medical and dental offices, it’s whatever the waiting room tracked in, plus the constant re-circulation of the same air through the system.

We use a negative-air machine to create suction on the ductwork while a rotary brush system from Rotobrush or Nikro agitates the interior walls and knocks the buildup loose. The negative air pulls the debris into a HEPA-filtered collection unit, not out into your office. That’s the part that matters if you ask one question: is the dirt being removed from the building, or just stirred around inside it? Our method removes it.

When You Need Commercial Duct Cleaning

Here’s what we see in Miami, over and over. If any of these sound familiar, the system needs a look.

• Dust on surfaces returns within days of cleaning. If your front desk in Doral or your counters in Wynwood collect a film of dust within 48 hours after housekeeping wipes them, the ducts are likely pushing it back into the space every time the air handler cycles on.
• Musty smell when the AC first kicks on. That’s the signature of mold or mildew growth on the coils or in the duct liner. Miami’s summer humidity makes this nearly universal in buildings where the system short-cycles or doesn’t drain properly.
• You bought an older building. A lot of Miami commercial space near Little Havana, Allapattah, and Hialeah is 30 to 50 years old. The ductwork in those buildings often hasn’t been opened since the last tenant ran a different business out of the same space.
• Your energy bills climb every summer. A coated duct interior restricts airflow, which means the blower works harder and the compressor runs longer. We’ve seen systems in Kendall where buildup had reduced the effective duct diameter by a third.
• Staff or customers complain about allergies indoors. If the complaints stop when people leave the building and start when they walk in, the air delivery system is a prime suspect.
• You’re a restaurant near the water. Grease plus salt air equals a kind of sludge inside exhaust and supply ducts that inland restaurants never deal with. Places along Biscayne Boulevard and South Beach get it worst.

Our Commercial Duct Cleaning Process

Here’s how we work a commercial job, step by step, so you know exactly what happens between the estimate and the final walkthrough.

1. Site walkthrough and system map. We locate every supply register, return, and the air handler itself. We check access points, ceiling type, and which areas of the building share duct runs. This tells us what equipment to bring and how long the job will take.
2. Written price before work starts. We give you a line-item price on paper. It doesn’t change at the door, and it doesn’t change halfway through. If we find something unexpected inside the ductwork, we stop and show you before any additional work gets approved.
3. Negative-air setup and containment. We connect a Nikro or Rotobrush negative-air machine to the main trunk line and seal off registers so the entire duct system is under negative pressure. Debris flows one way: out of the ducts, into the HEPA unit.
4. Rotary brush agitation and compressed air. A rotary brush system works through each duct run, scrubbing the interior walls. For rectangular commercial duct, our techs use access doors cut into the duct at intervals, then sealed with proper duct mastic and metal patches after the job.
5. Component cleaning. The blower fan, evaporator coil, and drain pan get cleaned by hand where accessible. A coated coil and a dirty blower wheel undo the benefit of clean ducts within months if skipped.
6. Final inspection and photos. We show you before and after photos of the inside of the ductwork. You should be able to see the difference, not take our word for it. Then we do a walkthrough, seal every access door, and leave the site clean. That’s the Garrison Code in practice: arrive in the window, price in writing, do the job by the book, leave it squared away.

Commercial Duct Cleaning Pricing in Miami

You won’t get much honesty from a website that tells you “call for pricing” and then hits you with a number that moves once the crew is on site. Here’s what commercial duct cleaning actually costs in Miami, based on what we see across the market and what we charge.

Space Type	Typical Size	Price Range
Small office or retail	Under 2,500 sq ft	$1,200 – $1,800
Mid-size office	2,500 – 6,000 sq ft	$1,800 – $3,000
Restaurant	2,000 – 5,000 sq ft	$1,500 – $3,500
Medical or dental office	2,000 – 4,000 sq ft	$1,600 – $3,000
Warehouse or large building	6,000+ sq ft	$0.25 – $0.50 / sq ft

What changes the price

• Duct condition. If the system hasn’t been cleaned in 10 or 15 years and the buildup is thick, the job takes longer and costs more. A lightly soiled system is a faster scrub.
• Access. Ducts above drop ceilings are easier to reach than ducts buried in a chase or running through a slab. Hard access adds time, and time is the main cost driver.
• System size and layout. More registers and more linear feet of duct means more labor. Buildings with long trunk lines and many branches cost more than small open layouts.
• Contaminant type. Grease in a restaurant kitchen duct is tougher to remove than dust in an office supply run. Mold remediation inside ducts adds cost because it requires antimicrobial treatment and containment.
• After-hours work. If you need us on nights or weekends so you don’t close, there’s a premium for the shift. Daytime work during your normal hours costs less.

Every estimate includes the full scope in writing. No hidden charges. If the job runs long because we misjudged the build, that’s our issue, not your invoice. If you want a firm price for your building, call (850) 660-3272 and we’ll schedule the walkthrough. Estimates are free.

Why Miami Commercial Buildings Need This More Than Most

Miami’s climate works against HVAC systems in ways that most of the country never deals with. Salt air off the Atlantic and Biscayne Bay corrodes coils and duct interiors. The humidity from May through October keeps the inside of ductwork damp for months at a stretch, which is precisely what mold needs to establish itself. And the volume of new construction in areas like Edgewater, Midtown, and Brickell means construction dust works its way into neighboring buildings’ fresh air intakes constantly.

We see the same pattern in buildings across the county. The ductwork in a 20-year-old office building in Kendall that hasn’t been cleaned since it opened will look very different from the same age building in a dry inland city. We pull out salt-crusted dust, mold-stained fiberglass liner, and the occasional surprising accumulation of construction debris from a renovation project three tenants ago. If the building has never had a commercial duct cleaning, it’s probably overdue.

What the 365-Day Done Right Promise Covers

Here’s the guarantee in plain language, the way we write it on every invoice. If the duct cleaning doesn’t hold up, call us within 365 days. We come back and make it right at no charge. That includes a free second visit. It’s not a vague “satisfaction guaranteed” line. It’s a specific commitment with a specific time window. If we didn’t get the debris out, if the musty smell returns, if dust keeps showing up on your desks two weeks after the job, we come back and finish the work properly.

Most commercial cleaning companies in Miami won’t put that in writing. We do, because Roy Castellanos runs this business on a simple idea: the work should stand behind itself. A guarantee is just the thing you write down so the customer knows you’ll answer the phone if the work falls short. Our phones are answered by a live person 24/7, so when you call about a warranty issue, a human picks up. Not a callback queue.

Equipment We Use and Why It Matters

You can clean ducts with a shop vac and a hardware-store brush. It won’t get the job done, and it’ll leave half the debris in the system. We run professional-grade equipment from Rotobrush and Nikro, matched with HEPA filtration from Honeywell and Guardsman where the job calls for it. A negative-air machine from Nikro creates enough airflow to keep the entire duct run under suction while our techs agitate the interior. That means the dust and mold spores don’t blow into your office while we work. The rotary brush systems from Rotobrush give us reach into long horizontal runs that hand tools can’t touch.

Why does that matter to someone signing a work order? Because the equipment determines the result. Cheap equipment means cheap cleaning, and cheap cleaning means you’ll call someone else in 18 months to redo the work. We’d rather do it once and have it hold.

Who Runs the Crew

Every commercial crew we send out is background-checked and uniformed. You’ll know who’s supposed to be in your building before they walk through the door. The techs work under the Garrison Code: arrive inside the window, introduce themselves, keep the work area contained, explain what they’re doing if you ask, and leave the site as clean or cleaner than they found it. No subcontracted third party, no mystery crew. The people in the truck are Hollis Air Duct Miami people.

Roy Castellanos has run this operation through two decades of Miami construction booms, hurricane seasons, and building code changes. That matters when you’re handing over access to a commercial space where a bad job means tenant complaints or a failed inspection.

Commercial vs. Residential Duct Cleaning: What’s Different

Residential and commercial duct cleaning share the same underlying method, but the execution is different. Commercial systems are larger, run longer, and often serve multiple zones. Access points matter more. The stakes are higher, too: a dirty system in a home affects one family. A dirty system in a restaurant, doctor’s office, or retail space affects employees, customers, and your operating costs every single day.

We handle both. If you need the residential side, we have a full Air Duct Cleaning in Miami service page that covers homes, condos, and apartments. But commercial is a different animal, and we treat it that way on every job.

Common Questions from Miami Business Owners

How long does commercial duct cleaning take?

For most small-to-mid-size Miami commercial spaces, the job runs four to eight hours. A small office under 2,000 sq ft can be done in a half day. A 6,000 sq ft restaurant or medical office may run a full day or spill into the next. We’ll give you a time window in the written estimate, and we arrive inside that window. If you need after-hours work so the business stays open, we schedule it and the price reflects the shift.

Will my business have to close during the cleaning?

Usually not. We work around your operating hours and contain the work area so the rest of the building keeps functioning. For restaurants, we typically schedule after closing or before opening. For offices, we work nights or weekends when the space is empty. If your building has critical airflow requirements, like a medical practice, we’ll walk through a containment plan before we start.

How often should commercial ducts be cleaned in Miami?

In Miami’s climate, we recommend commercial duct cleaning every three to five years for ordinary office and retail space, and every one to three years for restaurants, medical offices, and any building within a mile of the ocean. Salt air, high humidity, and constant AC use accelerate buildup. If you bought a building and don’t know when the ducts were last cleaned, the honest answer is: it’s probably time now.

Does duct cleaning help with that musty smell in my office?

If the smell is coming from mold or mildew inside the ductwork or on the coil, yes, a proper cleaning removes it. We clean the coil and drain pan as part of the job, because mold on the coil re-contaminates clean ducts within weeks. If the source of the smell is outside the system, like standing water in a wall cavity, we’ll tell you and you’ll need a separate remediation. We don’t sell you a duct cleaning when the problem is somewhere else.

What happens if I find a problem after the job?

Call us. If the issue is covered by the 365-Day Done Right Promise, we schedule a return visit at no charge. Roy Castellanos is the person who ultimately answers for every job, and he’s been doing this since 2004. You won’t get bounced around with a problem that we should have caught on the first pass.

FAQs – Commercial Duct Cleaning

How much does commercial duct cleaning cost in Miami?

Commercial duct cleaning in Miami typically costs $0.25 to $0.50 per square foot, with most small and mid-size buildings landing between $1,200 and $3,500. Restaurants, medical offices, and buildings near the coast run higher because grease, salt air, and humidity make the buildup harder to remove. Call (850) 660-3272 for a written estimate specific to your building. Estimates are free.

Can you clean our ducts without closing the office?

Yes. We schedule commercial work around your operating hours, including nights and weekends. The negative-air setup keeps debris contained, so work can proceed in one zone while the rest of the building stays open. If your operation runs 24/7, we’ll build a phased cleaning plan with you before any work starts.

Is it cheaper to keep ignoring the ducts and just change filters more often?

No. Filters only capture what passes through them. Debris already inside the ductwork keeps re-circulating regardless of how often you swap the filter, and a restricted system runs harder, which raises energy bills and shortens equipment life. The cost of a cleaning is usually less than the extra energy expense over two or three Miami summers, not to mention the indoor air complaints from staff and tenants.

Does commercial duct cleaning eliminate mold?

If the mold is inside the ductwork or on the coil, yes, our process removes visible growth and treats the surfaces to slow regrowth. If mold is rooted in insulation or building materials outside the ducts, the duct cleaning alone won’t solve it. We’ll show you what we found inside the system with before and after photos, so you know exactly what was addressed.

Service Areas We Cover in Miami

Hollis Air Duct Miami handles commercial duct cleaning across the city and the surrounding county. Brickell, Downtown, Wynwood, Edgewater, Midtown, Coral Gables, Coconut Grove, Little Havana, Allapattah, Hialeah, Doral, Kendall, South Beach, and everywhere in between. If your building is in Miami-Dade County and the ducts need a serious cleaning, we’ll get to you.

If you have a commercial building that’s never had the ducts cleaned, or the last company left you wondering if anything was actually done, let’s talk. Call (850) 660-3272 and we’ll set up a walkthrough. You’ll get a written price, a clear scope of work, and a 365-day guarantee that we stand behind in writing. That’s the Garrison Standard on every job, commercial or residential.

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