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 Palmetto Bay
Duct sealing in Palmetto Bay typically runs $400 – $900 for a whole-home system, and most jobs are scheduled within a few days of your call. If your A/C runs constantly but rooms stay unevenly cooled, or your energy bills keep climbing through South Florida’s long cooling season, leaky ductwork is the likely culprit. Call Hollis Air Duct Cleaning at (361) 326-5060 for a free written estimate before any work starts.
We’ve worked in Palmetto Bay long enough to know the village’s housing stock inside and out. From the 1970s ranch homes off Old Cutler Road to the newer estates near Deering Bay, we see the same patterns: flex duct sagging in hot garage attics, original metal trunk lines rusted at the seams, and return vents choked with oak pollen. Our crews dispatch from our Miami office and serve Palmetto Bay neighborhoods directly. We don’t subcontract. We don’t bait-and-switch. We show up in uniform, price the job in writing, and stand behind it for a full year.
Why Hollis Air Duct Cleaning Is Palmetto Bay’s Preferred Duct Sealing Company
Palmetto Bay homeowners have a low tolerance for no-shows and moving prices. We get that. Hollis has been part of the Garrison Partners family since 2004, and our Duct Sealing in Palmetto Bay crews operate under The Garrison Standard: arrive inside the quoted window, write the price before touching equipment, finish by the book, and leave the site clean. Our technicians are background-checked and uniformed. You know who’s coming before they knock.
Our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues. When you call (361) 326-5060, you talk to a human who can schedule your Palmetto Bay appointment and explain what duct sealing involves for your specific home type.
Every repair we make carries the 365-Day Done Right Promise in writing. If the seal fails, the connection loosens, or the humidity problem returns within a year, we come back and make it right at no charge. That includes a free second visit. We don’t negotiate coverage after the fact. It’s on paper when we leave.
HVAC Duct Sealing in Palmetto Bay
HVAC Duct Sealing in Palmetto Bay means closing the gaps, cracks, and disconnected joints in your duct system so cooled air reaches your rooms instead of leaking into your attic, garage, or crawl space. Most Palmetto Bay homes lose 20 – 30% of conditioned air through duct leaks, according to Department of Energy estimates, and in a village where A/C runs 10 – 12 months a year, that’s real money bleeding out every month. A typical whole-home duct sealing job in Palmetto Bay runs $400 – $900, depending on system size, accessibility, and whether we find crushed or disconnected runs that need repair before sealing.
We seal with mastic compound and foil-backed tape rated for high-humidity environments, not the cheap cloth tape that peels in South Florida’s heat. For metal ductwork, we brush mastic into every joint and seam. For flex duct, we check that the inner liner is intact before sealing the outer insulation. The goal is simple: every cubic foot of air your compressor produces should reach a register, not a garage rafter.
When Sealing Becomes Repair
Sometimes we open a system and find that sealing alone won’t solve the problem. Sagging flex duct in a hot Palmetto Bay garage has already cracked its inner liner. A slab-on-grade trunk line has pulled completely free of the air handler. In those cases, we explain what we found, show you the camera footage, and give you a written price for repair plus sealing before we proceed. No surprises at the door.
Camera Inspection Before We Seal
We run a scope through your trunk lines and branch ducts before quoting. In Palmetto Bay’s older homes, we’ve found disconnected boots buried in slab insulation, rust holes in original metal duct, and flex runs crushed by storage items in garage attics. The camera lets us price accurately and lets you see exactly what needs fixing.
Duct Repair in Palmetto Bay
Duct Repair in Palmetto Bay addresses the physical damage that sealing alone cannot fix: crushed flex runs, rusted-out metal joints, disconnected boots, and water-damaged ductboard from roof or attic leaks. Repair costs in Palmetto Bay typically range from $250 for a single flex-run replacement to $1,200 or more for extensive metal duct restoration in a multi-zone system. We always inspect first, write the price, and get your approval before cutting or replacing anything.
Palmetto Bay’s housing patterns create predictable failure modes. Slab-on-grade homes with flex duct routed through garage attics see sagging and condensation damage. Original 1960s – 1980s rigid metal in western neighborhoods like Royal Palm rusts at joints after decades of humidity cycling. Hurricane-season water intrusion wets attic insulation and duct connections. We repair for these conditions specifically, not with a generic parts list.
Flex Duct Replacement
South Florida humidity softens the wire helix in flex duct until it sags, creating low spots that trap condensation and breed mold. We replace sagging runs with properly supported new flex, sealed at both ends with mechanical collars and mastic. The support straps we use are rated for attic temperatures that regularly exceed 130°F in Palmetto Bay garage attics.
Metal Duct Restoration
For original metal trunk lines that are structurally sound but leaking at seams, we clean the joints, apply mastic, and wrap with foil tape. If rust has perforated the metal, we cut out the damaged section and splice in new galvanized duct with a proper collar and seal. We don’t patch over rot. That just fails again in six months.
Trusted Brands We Service in Palmetto Bay
Our Duct Sealing crews carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, the same brands commercial HVAC contractors use in hospitals and schools. Rotobrush rotary brush systems let us agitate debris loose from duct walls before extraction. Nikro negative-air machines maintain suction throughout the job so nothing escapes into your living space. For filtration upgrades after sealing, we stock Honeywell and Aprilaire media filters sized for Palmetto Bay’s high-pollen, high-humidity environment. We keep common flex duct sizes, collars, boots, and matic on our vans so most repairs don’t wait for a parts run. That matters when your A/C is fighting 90°F outside and 80% humidity inside.
Common Duct Sealing Problems We See in Palmetto Bay Homes
- Pollen-choked returns from live oak canopy. Palmetto Bay’s mature oaks and pines drop enough pollen in spring to coat return vent grilles with a fine green film within weeks. That same pollen pulls into ductwork through leaks around return plenums, accumulating on damp interior surfaces and restricting airflow. Sealing the return chase and plenum stops the inward migration.
- Slab-on-grade flex duct sagging in garage attics. Many Palmetto Bay homes route flex duct through the garage ceiling or attic space above the slab. South Florida humidity softens the duct’s wire support until it droops, creating low spots where condensation pools and mold colonizes. Sealing without replacing the sagging run traps moisture inside.
- Rusted metal joints in 1970s Royal Palm ranches. Original rigid metal ductwork in western Palmetto Bay neighborhoods has endured 40 – 50 years of condensation cycling. Joints rust through, creating pinhole leaks that pull hot attic air and oak debris into supply lines. Mastic sealing restores integrity if the metal is sound; replacement is needed if rust has perforated.
- Hurricane-season water intrusion at attic penetrations. Roof vents, chimney chases, and duct boots in Palmetto Bay attics leak during heavy rain. Water follows duct insulation and pools at low connections. Sealing ducts without addressing the water source locks moisture inside, accelerating mold. We identify active leaks and recommend repair before we seal.
Pricing for Duct Sealing in Palmetto Bay, FL
A typical whole-home duct sealing in Palmetto Bay runs $400 – $900. Single-zone systems in smaller ranch homes usually fall at the lower end. Multi-zone systems in larger eastern estates, or jobs requiring significant flex duct replacement, trend toward the upper range. Duct repair, when needed, adds $250 – $1,200 depending on scope.
What moves the price: accessibility (crawl space vs. walk-in attic), system size (number of zones and registers), material condition (whether we can seal existing duct or must replace sections first), and contamination level (heavy mold requires cleaning before sealing). We don’t quote per-vent or teaser rates that balloon at the door. We inspect, write one flat price per system, and that’s what you pay. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Palmetto Bay
Hollis Air Duct Cleaning dispatches crews throughout South Florida and maintains scheduling capacity for Jacksonville, Miami, Tampa, and Orlando. Our Miami office coordinates Palmetto Bay appointments directly, with local technicians who know the village’s neighborhoods and housing patterns. Whether you’re in Palmetto Bay proper or nearby, the same written pricing and 365-Day Done Right Promise apply.
Serving Palmetto Bay, FL - Our Local Coverage Area
We’re based in the Palmetto Bay 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 Palmetto Bay
The dense live oak and pine canopy in Palmetto Bay produces pollen loads that inland areas simply don’t match. Return vents here clog with green pollen film within weeks, and every leak in your duct system pulls that debris inside where it sticks to damp duct walls and restricts airflow. Sealing cuts off the entry path. Call (361) 326-5060 for an inspection if your registers show dust buildup or your filters clog faster than expected.
Sealing can fix the humidity smell if the odor is coming from leaks that pull hot, moist garage air into your supply ducts. But if flex runs in the garage attic have sagged and cracked, or if condensation is pooling inside the duct itself, sealing alone won’t solve it. We camera-inspect first to determine whether sealing, replacement, or both are needed. Call (361) 326-5060 and we’ll show you exactly what we find.
In a Royal Palm ranch with original metal ductwork, sealing stops three specific problems: conditioned air leaking into the attic through rusted joints, hot attic air and oak pollen being pulled into supply lines through those same leaks, and the efficiency loss that makes your compressor run longer to cool the same space. We brush mastic into every accessible joint and wrap with foil tape rated for high humidity. If rust has perforated the metal, we’ll show you and quote replacement before proceeding.
Yes, but only when paired with proper drainage and insulation. Sealing stops warm, humid outside air from entering cool ducts where it condenses. In Palmetto Bay, where A/C runs nearly constantly, that condensation is the primary mold trigger. However, if your system already has standing water from a clogged condensate line or wet insulation from a roof leak, sealing traps that moisture inside. We check for active water problems before we seal. Call (361) 326-5060 for a full system evaluation.
Seal before hurricane season if your ducts are currently dry and intact. A sealed system is less likely to draw humid outdoor air during power outages when A/C isn’t running. If you’ve had past water intrusion or suspect roof leaks, inspect and repair those first, then seal in early fall after the peak storm period passes. We can assess your specific risk factors and recommend timing during your free estimate. Call (361) 326-5060 to schedule.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Palmetto Bay under The Garrison Standard since 2004.