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.
Fast, Reliable Duct Sealing Across Miami Lakes
Duct sealing in Miami Lakes typically runs $850 – $1,900 for a full system, depending on house size and access, and most jobs are finished in one day. If your AC runs constantly and some rooms never reach the thermostat setting, you’re probably losing conditioned air through leaky ductwork. Call Hollis Air Duct Miami at (850) 660-3272 and we’ll send a technician who knows Miami Lakes homes, not just a guy with a van and a mastic bucket.
We work in Miami Lakes weekly, which means we know the difference between a 1960s ranch off Miami Lakes Drive and a 2000s Mediterranean build near the Graham Dairy area. That local knowledge changes how we approach every job, because duct leakage in this town has patterns you won’t find in Doral or Hialeah. More on that below.
Key Takeaways
- Cost in Miami Lakes: Whole-home duct sealing runs $850 – $1,900; partial sealing of a specific run starts around $350 – $500.
- Why it matters here: Humidity from the Everglades means leaky ducts pull wet air into your system, and that wet air becomes mold.
- The 365-Day Done Right Promise covers every sealing job in writing. If a seam fails within a year, we return at no charge.
- Terrazzo floors complicate access. We seal from ceiling diffusers in older Miami Lakes homes, which most Miami-Dade crews never learn to do properly.
Styles & brands we work with
Why Hollis Air Duct Miami Is Miami Lakes’s Preferred Duct Sealing Company
Hollis Air Duct Miami has been part of the Miami Lakes service area for years, with a reputation built on written prices and a 365-Day Done Right Promise that covers every seam we seal. Homeowners in the Lake Patricia and Miami Lakes Drive neighborhoods call us because our technicians show up uniformed, background-checked, and inside the quoted window. We don’t ask you to trust a moving target at the door.
The Garrison Standard is what our techs operate under, and it’s written, not aspirational: arrive inside the window, price it before we touch it, finish by the book, leave the site clean. Roy Castellanos, who leads this location, enforces that standard on every Miami Lakes job, including the condos and HOA properties where ducts run through shared walls and access has to be coordinated with a management company.
Our Duct Sealing team works from the Miami (South FL) office, dispatching to Miami Lakes daily. That means scheduling is handled by a live person who answers the phone 24/7, so you’re not leaving voicemails when you need an HOA access window confirmed.
Duct Sealing Services in Miami Lakes
Duct Sealing Services in Miami Lakes addresses the joints, seams, and connections where conditioned air escapes your ductwork before it ever reaches a bedroom or living room. In a Miami Lakes home, especially a 1970s ranch with original rigid metal ducts, that leakage can mean 25 – 35% of the air you’re paying to cool ends up in the attic or inside a wall cavity. We seal those points with mastic, Aeroseal, and when the job calls for it, new mechanical fasteners.
Whole-home sealing in Miami Lakes runs $850 – $1,900. Partial sealing of a single accessible run starts around $350 – $500. The price is written before we start, and it doesn’t move at the door.
Supply and Return Duct Sealing
Supply ducts carry cooled air from your air handler to the rooms. Return ducts pull warm air back to the system. When either leaks, the system works harder and the humidity climbs. In older Miami Lakes homes, the original sheet metal seams separate over time, and the result is exactly what we see on short-cycling blower motors all through Lake Patricia.
Plenum and Boot Sealing
The plenum is the box where your ducts meet the air handler, and the boot is where the duct meets the register. Both are prime leak points in Miami Lakes homes, particularly where original boots sit against terrazzo flooring. We pull the diffuser, seal the boot from the inside, and re-set it so the seam is tight and airtight.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Duct Insulation in Miami Lakes
Duct insulation in Miami Lakes is the difference between a system that cools your air and a system that cools your attic. Uninsulated or poorly insulated ducts in a Miami Lakes attic absorb heat all day and then sweat at night, when the humid air from the Everglades hits that cold metal. That condensation drips onto insulation, drywall, and whatever you have stored up there, and it’s how mold gets a start without you ever seeing it.
We insulate duct runs with R-6 or R-8 foil-faced duct wrap, depending on attic conditions and code requirements for Miami-Dade. The cost for insulating an average Miami Lakes home’s accessible ductwork runs $1,200 – $2,400. Smaller sections, like an attic trunk line, start around $450 – $700.
Attic Duct Insulation
Attic temperatures in Miami Lakes routinely exceed 120 degrees in July. When ducts run through that heat without proper insulation, the air inside them gains 10 – 15 degrees before it reaches a register. That’s why a bedroom at the far end of the house never cools. We wrap those runs and seal every seam first, so you’re not insulating over leaks.
Condensation Control Wrapping
When ducts sweat, the moisture runs down the duct and pools at the lowest point. In Miami Lakes homes with flat or low-slope roofs, that pool sits right above a ceiling. We apply a vapor barrier wrap that keeps the surface temperature of the duct above the dew point, which stops the sweating before it starts.
Trusted Brands We Service in Miami Lakes
Hollis Air Duct Miami stocks sealing mastic, Aeroseal, and duct wrap from Rotobrush, Nikro, and Honeywell. These are commercial-grade systems, not hardware-store materials, and we keep them in the van for Miami Lakes jobs so we’re not running back across town when a seam fails at 2 p.m. on a balmy Tuesday. If your current ducts were installed with labor from any major brand, we service that too, and we’ll tell you plainly whether sealing them makes sense or whether the duct itself needs replacement.
Common Duct Sealing Problems We See in Miami Lakes Homes
- Salt air corroding tape and foil. Homes near the eastern edge of Miami Lakes get moving air off the wetlands and, further east, Biscayne Bay. That salt degrades standard aluminum tape within 18 months. We see seams peeled back like a banana skin on exterior duct runs. The fix is mastic and a mechanical fastening, not more tape.
- Terrazzo floor registers blocking access. Many older Miami Lakes homes have supply registers cut into terrazzo floors. You can’t pull those without cracking the floor, and most Miami-Dade crews never learn that. We seal from the ceiling diffuser instead, which changes the access plan for the entire house.
- HOA access windows collapsing the job. Condo associations in Miami Lakes often restrict work hours to a 3- or 4-hour window. A crew that doesn’t plan for that will rush the sealing and miss leaks inside shared wall cavities. We coordinate with your management company before the truck leaves the shop.
- Humidity wetting mastic before it cures. Miami Lakes sits right on the edge of the Everglades, and the wet season runs from May through October. Mastic needs time to cure, and if you trap moisture under it, you’re sealing mold into the joint. We use a moisture meter and adjust the schedule so the mastic sets dry the first time.
See the difference
Before
After
Before
After
Before
AfterPricing for Duct Sealing in Miami Lakes, FL
Expect to pay $850 – $1,900 for whole-home duct sealing in Miami Lakes. Partial sealing of a specific run or plenum starts around $350 – $500. Duct insulation runs $1,200 – $2,400 for a full accessible system. The variables are access, attic condition, and whether you’re in a 1960s ranch with original rigid metal or a 2000s Mediterranean build with flex duct. Condos with shared duct runs and HOA coordination requirements sit at the upper end of the range.
Call (850) 660-3272 for a written estimate. The price you get on the phone is the price you pay, and it’s covered by the 365-Day Done Right Promise from the first pound of mastic to the last diffuser we set.
Miami Lakes Duct Sealing: What Makes This Town Different
Miami Lakes was master-planned in the 1960s under a set of strict HOA rules that still shape how homes here are maintained. The housing stock is mostly low-slung, flat-roofed ranches and townhouses with short, often inflexible duct runs. Those ducts channel humid, salty air from the wetlands to the west, and that combination means condensation, corrosion, and mold are a year-round fight, not a seasonal one. Neighboring Hialeah and Miami Gardens have different housing ages and different duct layouts, and a sealing approach that works there won’t necessarily work on a ranch off Miami Lakes Drive.
The original supply registers cut into terrazzo floors are the tell. In almost any other Miami-Dade municipality, you’d pull a floor register and seal the boot from above. In Miami Lakes, that’s often impossible, because the terrazzo was poured around the register and pulling it cracks the floor. So duct sealing here starts at the ceiling diffuser, not the floor. If a crew hasn’t worked this housing stock, they’ll either crack your terrazzo or skip the boot entirely, which leaves a leak they never even found.
We sealed the supply and return ducts in a Lake Patricia ranch where a camera inspection showed 30% leakage at the original rigid metal joints. After HEPA filtration and source removal, our techs applied mastic and Aeroseal, then re-sealed the ceiling diffusers. Static pressure dropped and the blower motor stopped short-cycling. That’s the kind of outcome Miami Lakes homeowners call us for.
Condos here add another layer. Duct runs that pass through a shared wall or chase are often the responsibility of the association, not the unit owner, and Miami Lakes Dryer Vent Cleaning through common structure needs HOA sign-off before anyone touches them. We know which jobs these are because we’ve done them in buildings across Miami Lakes, and we’ll tell you upfront whether you need to pull a permit or loop in the property manager before we put a tool to the ceiling.
Serving Miami Lakes, FL - Our Local Coverage Area
We’re based in the Miami Lakes 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 About Duct Sealing in Miami Lakes
The answer depends on where the duct runs. Ducts that serve only your unit and sit inside your unit’s walls are typically the owner’s responsibility. Ducts that run through shared walls, chases, or common structure are usually the HOA’s. In some Miami Lakes buildings, the association handles the main trunk and the owner handles the branch runs. We’ll review your building’s layout and tell you which section is which before any work starts. Call (850) 660-3272 for guidance on your specific building.
Yes, in most cases. We work from the ceiling diffuser or attic side instead of pulling floor registers set in terrazzo. If the register sits in a wooden floor or carpeted area, we can still access it from below. But on original terrazzo, we leave the floor alone. This is specific to Miami Lakes and a few other 1960s neighborhoods, and it changes the access plan for the whole job. When you call, mention the terrazzo so the crew shows up prepared.
Humidity from the Everglades is the main reason duct sealing fails early in Miami Lakes. When mastic cures in humid air, it can trap moisture under the seal, and that moisture feeds mold. Salt in the air from the wetlands also corrodes aluminum tape within 18 months. We use moisture meters before applying mastic, and we mechanically fasten seams instead of relying on tape. The 365-Day Done Right Promise covers every joint, and if a seam fails due to humidity within the first year, we come back at no charge.
In most Miami Lakes condo buildings, yes. Dryer vents that pass through common walls, chases, or the building envelope are association responsibility, and sealing them usually requires written approval from the property manager. Some associations require a licensed contractor’s certificate before work can start. We coordinate directly with your management company, and we’ll tell you early in the quote whether approval is needed so the job doesn’t stall at the last step.
Duct cleaning removes mold, debris, and buildup from inside the ducts. Duct sealing closes the joints and seams where humid air gets into the system and creates the conditions for mold in the first place. In Miami Lakes, where condensation is a year-round problem, you usually need both: clean out what’s already there, then seal the leaks so it doesn’t come back. We do both, and the sealing work is covered by the 365-Day Done Right Promise. Call (850) 660-3272 for a written quote that separates the two line items.
We Also Serve Cities Near Miami Lakes
Hollis Air Duct Miami handles duct sealing jobs in Duct Sealing in Miami Lakes and the surrounding area, including Miami, Miami Beach, Miami Gardens, and Doral. Same written pricing, same 365-Day Done Right Promise, and the same technician standard whether the job is a ranch on the Miami Lakes Drive corridor or a condo tower near Doral’s business district.
Call Hollis Air Duct Miami for Duct Sealing in Miami Lakes
If your AC can’t hold temperature, or you’ve seen condensation on your registers, or you just bought a 1970s Miami Lakes home with original ductwork and you want to know what you’re dealing with, call us. Roy Castellanos runs this location under The Garrison Standard, which means written prices, written guarantees, and a crew that shows up uniformed and on time. We’ll inspect your ducts, show you exactly where the air is leaking, and hand you a price before any work begins. Call (850) 660-3272 today.
Written by Roy Castellanos, Owner at Hollis Air Duct Miami, serving Miami Lakes and surrounding South Florida communities.