Whole-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.
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AfterFast, Reliable Duct Sealing Across Gladeview
We dispatch crews to Gladeview from our Miami office, and most calls from the neighborhood between NW 79th Street and NW 95th Street get scheduled within a day or two. If you’re living under the MIA flight path, you’ve probably noticed that black film building up on your return vents. That greasy soot isn’t ordinary household dust. It’s jet exhaust particulate that settles into ductwork here year-round, and it changes how sealing work has to be done in Gladeview compared to anywhere else in South Florida. Call us at (361) 326-5060 for a free estimate. We’ll show you exactly what we find before we quote a price.
Why Hollis Air Duct Cleaning Is Gladeview’s Preferred Duct Sealing Company
We’ve been working in Gladeview long enough to know the difference between a home that needs a quick seal and one that needs the returns degreased first. Our Duct Sealing team carries the solvents and mastic formulations that bond to surfaces cleaned of MIA soot, not just standard hardware-store tape that flags off in a season.
Our technicians are background-checked, uniformed, and held to The Garrison Code: arrive inside the quoted window, price in writing before touching anything, finish by the book, leave the site clean. Every job gets the 365-Day Done Right Promise in writing. If the seal fails within a year, we come back and make it right at no charge, including a free second visit.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No waiting until Monday.
Duct Sealing Services in Gladeview
Duct Sealing Services in Gladeview address a specific set of problems you won’t find in newer suburbs: original galvanized steel trunks from the 1950s and 1960s, 1980s flex-duct retrofits that have degraded in attic heat, and that persistent MIA soot film that prevents standard sealants from bonding. A typical whole-system duct sealing job in Gladeview runs $850 – $1,400 for a single-family ranch, depending on whether we can access the attic air handler and how many branch runs need reconnection. Duplexes and smaller homes with simpler layouts often fall in the $650 – $950 range.
Return Plenum Degreasing and Resealing
The return plenum is where your system pulls air back to be cooled, and in Gladeview it’s where that greasy black film concentrates thickest. We degrease the substrate with Abatement Technologies cleaning agents formulated for petroleum-based soot, then apply mastic and foil mesh to joints that will actually hold. Skip the degreasing step and you’ll be calling someone back within months.
Flex-Duct Reconnection and Boot Sealing
Those 1980s flex-duct runs to rear bedrooms? The attic heat has degraded the collars, and the vibration from MIA overflights doesn’t help. We inspect with a camera, reconnect crushed or separated runs, and seal with mastic at the boot and air handler transition. The back bedroom that never cooled properly finally gets its share of airflow.
What happens when you call
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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 Gladeview
Duct Insulation in Gladeview is about stopping the condensation that forms when 55°F supply air moves through 140°F attic space. Uninsulated or poorly insulated flex runs sweat moisture into surrounding insulation and ceiling drywall, feeding the mold growth that South Florida humidity already encourages. Adding or replacing insulation on accessible duct runs typically runs $400 – $800 for a Gladeview ranch, with larger homes or those requiring attic-floor work reaching $1,000 – $1,500.
Vapor-Barrier Wrap for Attic Runs
We use Guardsman foil-faced insulation wrap with a proper vapor barrier, taped at seams with pressure-sensitive adhesive rated for high-temperature attics. The goal is keeping the cool air cool and the humid attic air outside the duct envelope. In Gladeview’s climate, this matters as much as the sealing itself.
Insulation Replacement After Mold Remediation
When we find degraded insulation that’s been wet repeatedly, we remove it, treat the duct surface, and install new wrap. This isn’t a cosmetic upgrade. It’s how you stop the cycle of condensation, microbial growth, and the musty smell that blows through vents every time the compressor kicks on.
Trusted Brands We Service in Gladeview
Our vans stock parts and materials from Rotobrush, Nikro, Abatement Technologies, and Guardsman, the same brands commercial crews rely on. For Gladeview homeowners, that means no waiting on a parts order when we find a disconnected run or a plenum that needs degreasing. We carry the negative-air machines, the HEPA filtration, the degreasing agents, and the mastic formulations that work on soot-prepped surfaces. If your system uses Honeywell, Aprilaire, or Guardsman filtration components, we service those too. Fast turnaround because the right materials are already on the truck.
Common Duct Sealing Problems We See in Gladeview Homes
- Sealant applied over MIA soot film without degreasing. The greasy jet-exhaust residue releases standard mastic within one cooling season. We see this on callbacks from other companies who treated Gladeview ducts like they were working in Coral Gables.
- Foil tape on original galvanized trunk joints in 140°F attics. The adhesive dries out and the tape flags off in months. We use mastic and mesh on steel, tape only where temperature exposure is limited.
- Flex-duct runs sealed at the boot but left crushed at the air handler transition. The visible end looks fixed while the real leak dumps conditioned air into the attic. Our camera inspection catches this before we quote.
- Sealing supply runs without addressing the humidity load. Tighter ducts move air faster, but if the system still pulls high-moisture air year-round, microbial growth continues inside. We flag this and recommend antimicrobial treatment where needed.
Pricing for Duct Sealing in Gladeview, FL
A typical whole-system duct sealing in Gladeview runs $650 – $1,400 depending on home size, attic accessibility, and how much prep work the MIA soot film requires. Here’s how that breaks down:
| Service | Typical Range |
|---|---|
| Basic sealing, small home or duplex | $650 – $950 |
| Whole-system sealing, single-family ranch | $850 – $1,400 |
| Return plenum degreasing + resealing | $300 – $500 add-on |
| Duct insulation replacement | $400 – $1,500 |
What moves the price: attic air handler location (crawl vs. walk-up), number of branch runs, whether flex-duct needs reconnection or replacement, and the degreasing requirement that most Gladeview jobs need but few competitors include in their quote. We write the price down before any work starts. It does not move at the door. Call (361) 326-5060 for an exact quote on your home. Estimates are free.
We Also Serve Cities Near Gladeview
Our crews work throughout South Florida and across the state. If you’re looking for Duct Sealing in Gladeview or nearby, we also schedule jobs in Jacksonville, Miami, Tampa, and Orlando. Each location runs independently under The Garrison Standard with the same written pricing and 365-Day Done Right Promise.
Serving Gladeview, FL - Our Local Coverage Area
We’re based in the Gladeview 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 Gladeview
It’s jet exhaust particulate from Miami International Airport operations settling into your return air system. Gladeview sits directly under MIA’s flight path, and that greasy soot is a year-round, neighborhood-specific problem that requires degreasing before any sealant will bond properly. Call (361) 326-5060 and we’ll show you what we find during a free inspection.
Yes, and we do it regularly. Original galvanized steel trunks seal well with mastic and mesh if the surfaces are properly prepped. On a 1958 ranch off NW 87th Street, our tech ran a camera inspection through the original galvanized supply trunk and found a crushed flex-duct run to the rear bedroom plus three disconnected joints in the attic air handler transition. We pulled the runs under negative pressure with HEPA filtration, degreased the soot-coated return plenum, then sealed the trunk and reconnected the branch runs with mastic and mesh. The homeowner’s back-room airflow went from barely-there to matching the front of the house. Every job gets the same written price upfront and the 365-Day Done Right Promise.
Usually it’s a disconnection or crush in the flex-duct run, not just a leak. The 1980s retrofits in Gladeview duplexes often have attic transitions that have separated or collapsed. We camera the run to confirm before we quote. Call (361) 326-5060 for a free estimate.
Yes. South Florida’s year-round humidity means your system runs almost continuously, pulling high-moisture air that feeds mold inside ductwork. Sealing without addressing that moisture load traps the problem inside tighter ducts. We flag this during inspection and recommend antimicrobial treatment where the microbial growth is active. The seal lasts longer when the interior environment is controlled.
We test static pressure before and after, and we show you the camera footage of sealed joints and reconnected runs. You’ll feel the difference in rooms that weren’t getting airflow. And if something fails within a year, the 365-Day Done Right Promise covers a free return visit to make it right. Call (361) 326-5060 with any concerns. We’ll answer live, day or night.
Ready to stop losing conditioned air to your attic and start getting even airflow to every room? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free, written estimate. We’ll inspect your system, show you exactly what we find, and quote one flat price before any work begins. No per-vent pricing. No bait-and-switch. Just The Garrison Standard, backed in writing.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Gladeview and South Florida since 2004.