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 Pembroke Pines
Duct sealing in Pembroke Pines typically runs $450 – $1,200 for a whole-home system, and most jobs are scheduled within a week of your call. If you’re in a newer Chapel Trail home or a 1990s tract house off Pines Boulevard, the problems are different, and the fix needs to match.
We’ve been working in Pembroke Pines long enough to know the difference. Our crews dispatch from our Miami office and cover the full city, from the western wetlands of Chapel Trail to the older concrete-block neighborhoods near Pembroke Lakes Mall. We arrive inside the quoted window, price the job in writing before we touch anything, and leave the site clean. That’s The Garrison Standard, and it’s how we work on every job. Call us at (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Pembroke Pines’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004. In Pembroke Pines, we’ve built our reputation on showing up when we said we would and pricing the job before we start, not after we’re halfway through. Our technicians are background-checked, uniformed, and trained to work with the specific conditions we find in South Florida homes.
Our 365-Day Done Right Promise covers every duct sealing job in writing. If the seal fails or moisture breaches our work within a year, we come back and make it right at no charge, including a free second visit. No negotiation, no runaround.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to schedule.
We carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, plus filtration products from Honeywell and Aprilaire. These are the same tools commercial crews use, and we explain what each one does before we start.
Duct Repair in Pembroke Pines
Duct Repair in Pembroke Pines is often the first step before sealing can even begin. The city’s housing stock, built mostly between the 1980s and 2000s, uses flexible ductwork run through hot attics and sometimes under slab-on-grade foundations. That flex degrades, separates at joints, or collapses where it was poorly supported. A typical duct repair in Pembroke Pines runs $200 – $600 depending on accessibility and extent of damage.
Collapsed Flex Runs in Attics
In Pembroke Pines, attic temperatures hit 140°F in July and August. Flex duct sags between supports, crimps at sharp turns, and eventually collapses. We replace the damaged section with properly supported flex or rigid metal, sized to the original airflow spec, then seal every joint with mastic and mesh before we close up.
Moisture-Damaged Fiberboard Plenums
Builder-grade fiberboard plenums in Chapel Trail and similar west Pembroke Pines communities absorb humidity like a sponge. Once swollen, they delaminate and leak. We cut out the damaged plenum and fabricate a new one from galvanized sheet metal, sealed at every seam, so it won’t wick moisture again.
Air Duct Sealing in Pembroke Pines
Air Duct Sealing in Pembroke Pines is fundamentally a moisture-control job, not a dust-control job. The city’s high water table and flat, poorly draining terrain keep ambient humidity near saturation year-round. Ducts in slab-on-grade homes become condensation traps. Sealing them without addressing that moisture dynamic is a waste of money. A typical whole-home air duct sealing job in Pembroke Pines runs $450 – $1,200, with larger homes or hard-to-access systems toward the upper end.
Mastic and Mesh for Humid Conditions
We seal joints with water-based duct mastic reinforced with fiberglass mesh, not foil tape. Tape peels in Pembroke Pines’s humidity. Mastic remains flexible, bridges small gaps, and won’t degrade when condensation forms on the duct exterior. We apply it to every joint, seam, and penetration, then verify with a pressure test.
Attic-Side Insulation After Sealing
Sealing a duct in a 140°F Pembroke Pines attic without replacing degraded insulation traps cold air against a hot surface. Condensation forms on the duct wall. We seal first, then install fresh fiberglass or reflective insulation with a proper vapor barrier, so the sealed system stays dry.
Trusted Brands We Service in Pembroke Pines
We stock parts and materials from Nikro, Honeywell, and Aprilaire for our Pembroke Pines customers, which means faster turnaround and no waiting on shipped-in components. Our Nikro negative-air machines create the controlled pressure environment needed for safe duct work in homes with active mold. Honeywell and Aprilaire filtration products integrate with sealed systems to maintain pressure balance and capture the fine particulate that South Florida’s humidity keeps suspended. We don’t use hardware-store tape or generic sealants on Pembroke Pines jobs. The materials matter when you’re sealing against this much moisture.
Common Duct Sealing Problems We See in Pembroke Pines Homes
- Builder-grade fiberboard wicking moisture from the slab. In Chapel Trail and other west Pembroke Pines communities built on former wetlands, fiberboard duct and plenums sit close to the water table. They absorb ground moisture through the concrete, swell, and delaminate. Sealing over this damage without replacing the wet material traps mold inside.
- Drywall dust and joint compound left in new-construction ducts. Homes built in 2020 and later around Pembroke Pines often have supply and return lines full of construction debris. Homeowners seal the ducts thinking it’ll contain the dust, but sealing locks the debris against the blower motor and coils, accelerating wear and reducing airflow.
- Flex duct condensation in unventilated attics. Summer attic temperatures in Pembroke Pines exceed 140°F. When cold conditioned air moves through poorly insulated flex duct, condensation forms on the outer jacket. The duct gets wet from the outside in, and mold follows. Sealing the interior joints doesn’t solve this.
- Return-side dampness above the air handler. We see this pattern repeatedly in slab-on-grade homes: the first few feet of return duct directly above the air handler stay damp even when the rest of the system looks clean. The combination of ground moisture and negative pressure pulls humidity into that short section. Sealing requires mastic rated for wet conditions and often a dehumidification strategy.
Pricing for Duct Sealing in Pembroke Pines, FL
A typical whole-home duct sealing in Pembroke Pines runs $450 – $1,200. Smaller homes with accessible attics and straight duct runs fall toward the lower end. Larger homes in Chapel Trail or Silver Lakes with complex layouts, multiple air handlers, or significant repair needs before sealing can reach the upper range.
What moves the price: accessibility (crawl space vs. walk-in attic), extent of pre-existing damage requiring repair, number of air handlers, and whether we need to address moisture intrusion before sealing. We give you one flat price per system, agreed in writing before work starts. No per-vent pricing, no add-ons at the door.
We also provide before-and-after photos of your own ducts, so you see what was sealed and why. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Pembroke Pines
Our crews cover the full South Florida metro from our Miami office, including Pembroke Pines, Miami Gardens, Plantation, Hialeah, and North Miami Beach. If you’re just outside city limits or in a neighboring community with similar slab-on-grade construction and humidity challenges, we apply the same standards and pricing structure. Our Duct Sealing team coordinates scheduling across the region, so you get the same arrival window, written price, and 365-Day Done Right Promise wherever you are.
Serving Pembroke Pines, FL - Our Local Coverage Area
We’re based in the Pembroke Pines 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 Pembroke Pines
New construction in Pembroke Pines often leaves drywall dust, joint compound, and wood debris inside supply and return ducts. Builders rarely clean ductwork before handover; they just install registers and call it done. That debris clogs your blower motor, coats your evaporator coils, and circulates through your home every time the AC runs. We recommend source removal before any sealing, so you don’t trap construction debris inside permanently. Call (361) 326-5060 for a free inspection and estimate.
Pembroke Pines sits on a high water table with flat, poorly draining terrain, especially in western communities like Chapel Trail. Slab-on-grade homes here pull ground moisture into the first few feet of ductwork above the air handler. Inland cities like Miramar or Coral Springs, built on slightly higher ground with better drainage, don’t see this pattern as consistently. Our sealing protocol accounts for wet-condition mastic application and often includes moisture-control recommendations specific to Pembroke Pines’s geography. Call (361) 326-5060 to discuss your home’s situation.
Yes, but we clean and treat the mold first, then seal. Sealing over active mold growth locks spores inside the duct where they’ll continue to propagate. We use negative-air containment from our Nikro system, agitation tools to break loose biofilm, and HEPA filtration before applying mastic and mesh to sealed joints. The 365-Day Done Right Promise covers our work for a full year. Call (361) 326-5060 to schedule an inspection.
We use water-based duct mastic reinforced with fiberglass mesh for all Pembroke Pines jobs, applied over clean, dry surfaces. Foil tape fails within months in this humidity. For homes with active moisture intrusion, we may recommend Aprilaire or Honeywell dehumidification components integrated with the sealed system. Every material choice is explained before we start, and the price includes everything. Call (361) 326-5060 for specifics on your home.
Proper duct sealing prevents conditioned air from leaking into your hot attic and unconditioned spaces, which reduces the load on your AC and can lower energy use by 15 – 30% in typical Pembroke Pines homes. It also maintains the pressure differential your MERV-rated filter needs to function correctly. Leaky returns pull unfiltered attic air past the filter, while leaky supplies waste cooled air. After sealing, your MERV 11 or higher filter actually captures what it’s rated for, instead of bypassing due to pressure loss. Call (361) 326-5060 for a system evaluation and exact savings estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Pembroke Pines and South Florida since 2004.