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.
Fast, Reliable Duct Sealing Across Weston
Duct sealing in Weston typically costs $450 – $1,200 for a whole-home seal, depending on system size and accessibility, and most jobs are completed in a single visit. If you’re noticing uneven cooling between rooms, dust puffing from registers, or energy bills climbing despite normal usage, your ductwork likely has leaks that are pulling attic air and construction debris into your living space.
We’re Hollis Air Duct Cleaning, and our crews work Weston regularly – from the master-planned neighborhoods off Royal Palm Boulevard to the winding streets near Weston Hills Country Club and the Town Center area. We also offer Weston Dryer Vent Cleaning for homeowners who want their whole ventilation system safe and efficient. Dispatch and scheduling are coordinated from our Miami office, but the technicians who arrive at your door know Weston’s housing stock: the 1990s Mediterranean-style stucco homes, the original flex duct that builders installed, and the specific problems that South Florida’s humidity creates inside those systems. When you call (361) 326-5060, a live person answers, day or night. We’ll give you a written price before any work starts, and every repair is covered by our 365-Day Done Right Promise.
Why Hollis Air Duct Cleaning Is Weston’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our reputation in Weston is built on showing up when we said we would and leaving the site clean. Homeowners here aren’t looking for the cheapest coupon in the mail; they’re looking for a crew that won’t track dust through the foyer or present a bill that doesn’t match the quote.
Our technicians are background-checked and uniformed – you know who’s walking into your home before they arrive. We use professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, the same tools commercial crews use, and we explain what each piece does in plain terms while we work. The Garrison Standard requires arriving inside the quoted window, pricing in writing, completing the job by the book, and leaving the site clean. That standard applies to every Duct Sealing in Weston job we take.
Our 365-Day Done Right Promise means if the seal fails within a year, we come back and make it right at no charge, including a free second visit. No negotiation, no runaround. That’s written on every job, not just mentioned over the phone.
Duct Sealing Services in Weston
Duct Sealing Services in Weston address the leaks, gaps, and separations in your HVAC ductwork that waste cooled air and pull contaminants into your living space. In a typical Weston home with 1990s-era flex duct, we find pinhole leaks near air handlers, disconnected joints in attic runs, and gaps where duct meets register boots – all of which force your AC to run longer and harder in our year-round heat. A full-system seal in Weston generally runs $450 – $1,200, with most single-story homes falling in the $550 – $850 range and larger two-story homes with complex duct runs toward the higher end.
Mastic Seal Application
We apply water-based duct sealing mastic, a thick paste that brushes onto joints and small gaps, then hardens into a permanent, flexible seal. Unlike tape, which dries and peels in South Florida’s attic heat, mastic lasts. We use it on every accessible joint in your system, including the hard-to-reach connections above cathedral ceilings common in Weston’s Mediterranean-style homes.

Aerosol Duct Sealing
For systems with extensive leakage throughout the duct run, we offer aerosol sealing, which pressurizes the ductwork and seals leaks from the inside with a non-toxic polymer. This method reaches gaps that manual sealing cannot, and we verify results with before-and-after pressure tests. It’s particularly effective in Weston’s two-story homes, where duct runs through interior walls are inaccessible by other means.

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 Weston
Duct Insulation in Weston protects your cooled air from the brutal attic temperatures that South Florida summers produce. Uninsulated or poorly insulated ductwork in a Weston attic can lose 20 – 30% of its cooling energy before the air ever reaches your living room, which means your AC runs longer, your bills climb, and the oversized systems common here short-cycle even more. Adding or replacing insulation on accessible duct runs typically costs $600 – $1,800 in Weston, depending on linear footage and whether we’re working with rigid metal or the original flex duct.
Attic Duct Wrapping
We wrap exposed supply ducts with formaldehyde-free fiberglass insulation, secured and sealed at every seam. In Weston’s stucco homes, where attic ventilation is often minimal, this barrier keeps 140-degree attic air from warming your 55-degree supply air before it reaches the register. The result is more even cooling, less strain on your compressor, and lower humidity at the vent.
Condensation Control
South Florida’s humidity means condensation on cold duct surfaces, which leads to mold and water damage. Proper insulation with a vapor barrier prevents this. We frequently find in Weston homes that the builder’s original insulation has compressed or torn, leaving bare duct exposed – especially near the air handler, where vibration wears it away first.
Trusted Brands We Service in Weston
We stock parts and materials from Abatement Technologies, Guardsman, and Rotobrush for fast turnaround on Weston jobs – no waiting on a Miami warehouse to deliver what your system needs. Our Nikro negative-air machines and HEPA filtration equipment are the same units commercial contractors use in hospitals and schools, and we maintain them to manufacturer spec so they perform at rated capacity on every job. For filtration upgrades after sealing, we carry Honeywell and Aprilaire products that integrate with most residential systems. When we seal your ducts, we can also evaluate whether your current filter is adequate for Weston’s pollen load and construction dust, or if an upgrade makes sense.
Common Duct Sealing Problems We See in Weston Homes
- Construction debris in “new” flex duct. In Weston’s 1990s master-planned neighborhoods, the first duct problem is often construction debris – drywall dust, sawdust, and drywall-tape scraps left in the flex runs at handover – so a “new” home can need source-removal cleaning sooner than its owners expect while the original flex duct is still too fragile for aggressive brushing.
- Brittle original flex duct from the 1990s. Weston’s housing stock is predominantly Mediterranean-style single-family homes with stucco exteriors, often featuring original flexible ductwork that becomes fragile after 25+ years. Aggressive agitation tools or high-pressure air can tear it and spread debris instead of removing it; the safe approach is gentle camera-guided source removal.
- Oversized AC systems that short-cycle and leave moisture behind. Weston’s oversized AC systems short-cycle in the humid climate, leaving condensation in the ducts. If sealing is done over damp ductwork without addressing moisture first, mold can return quickly near the air handler.
- Pinhole leaks spreading mold spores throughout the home. Technicians frequently find that builder-grade flex ducts installed in the 1990s have developed pinhole leaks, which can spread mold spores throughout the home. In Weston, duct cleaning often uncovers mold growth near the air handler due to the combination of high humidity and oversized AC systems that short-cycle.
Pricing for Duct Sealing in Weston, FL
A typical duct sealing job in Weston runs $450 – $1,200 for a complete residential system. Single-story homes with straightforward attic access usually fall between $550 – $850. Two-story homes with complex duct runs, like those common in the Weston Hills and Savanna areas, often reach $900 – $1,200 because of the additional labor to access and seal interior wall ducts.
What moves the price: the linear footage of ductwork, accessibility (crawled attics vs. walkable ones), whether we need to remove and replace degraded flex duct versus seal existing runs, and whether mold remediation is required before sealing can be effective. We do not quote per-vent pricing or bait-and-switch teaser rates. One flat price per system, agreed in writing before we start. Every estimate is free, and we show you camera footage of what we found so you understand why the work is necessary.
Call (361) 326-5060 for an exact quote on your Weston home.
We Also Serve Cities Near Weston
Our crews cover the full South Florida region, including Weston and nearby Jacksonville, Miami, Tampa, and Orlando. Each Hollis location is independently owned and operated under The Garrison Standard, so the crew that arrives at your door is accountable to your community, not a distant call center.
Serving Weston, FL - Our Local Coverage Area
We’re based in the Weston 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 Weston
Your AC can run fine while wasting 20 – 30% of its cooling energy through duct leaks. In Weston’s 1990s homes, original flex duct has become brittle, and the mastic seals at joints have dried and cracked after 25+ years in hot attics. The system still cools, but it runs longer, costs more, and pulls attic dust and humidity into your air. Call (361) 326-5060 for a free inspection and written quote.
No – aggressive brushing can tear brittle 1990s flex duct and make the problem worse. We use gentle camera-guided source removal with controlled agitation, verifying the duct’s condition before selecting tools. Our Rotobrush systems have adjustable speed and brush stiffness for exactly this situation. Call (361) 326-5060 to discuss the right approach for your home’s ductwork.
Construction dust contains drywall particulate, sawdust, and tape residue that bypasses standard filters and coats your blower motor, evaporator coils, and registers. In Weston’s humid climate, this debris traps moisture and supports mold growth near the air handler. We were called to a two-story home off Royal Palm Boulevard in Weston where the homeowners had moved in after a 2021 renovation and were already seeing drywall dust puff out of the supply and return ducts. Our tech used a camera inspection with Rotobrush agitation tools under negative pressure with HEPA filtration and found the builder-grade flex duct lined with construction dust and a small tear near the air handler; we gently source-removed the debris and sealed the damaged section rather than replace the run. The result was cleaner air at every register and no recurrence of the dust puff on startup.
Sealing over dirty or moldy ducts traps contaminants inside the system. In Weston, where humidity and construction debris are common, we clean first to remove the source of contamination, then seal to prevent recurrence. Sealing damp ductwork without addressing moisture first guarantees mold returns. Call (361) 326-5060 and we’ll assess whether your system needs both services or just one.
Two-story Weston homes have longer duct runs with more joints, more vertical drops through interior walls, and greater pressure imbalances between floors. Sealing requires access to both attic and basement or chase spaces, and we often find that the second floor is starved for air while the first floor is over-cooled. Our Duct Sealing team uses pressure testing to identify these imbalances and seals accordingly, sometimes adding manual dampers for better control. Two-story jobs typically run $900 – $1,200. Call (361) 326-5060 for a free estimate on your specific layout.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Weston since 2004.




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