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 Hollywood
Duct sealing in Hollywood typically runs $450 – $1,200 for a whole-house system, depending on whether we’re sealing original metal trunk lines, reconnecting crushed flex runs, or addressing corrosion in beachside high-rise chases. Most jobs are scheduled within a few days and completed in a single visit. Call (361) 326-5060 for a written estimate before any work starts.
We’ve been cleaning and sealing ductwork in Hollywood since 2004, and our crews know the split in this city’s housing stock cold. On one end you’ve got the 1920s – 1950s bungalows and mid-century ranches west of Federal Highway, with original galvanized metal ducts and decades of add-on flex. On the other, the high-rises along Hollywood Beach and the Intracoastal, where salt air and shared vertical chases create a completely different set of sealing problems. Our Duct Sealing team doesn’t guess. We run a camera first, show you what we found, and give you a written price before we touch anything. Dispatch and scheduling are coordinated from our Miami office, but the crew that shows up at your door knows Hollywood’s buildings because they’ve worked here for years.
Why Hollis Air Duct Cleaning Is Hollywood’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning operates under The Garrison Standard, which means we arrive inside the quoted window, price the job in writing before any work begins, complete it by the book, and leave the site clean. That’s not marketing language. It’s how every job runs, including every Hollywood home we enter.
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 on larger jobs. Every repair we make carries our 365-Day Done Right Promise: if the work fails 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, seven days a week. No voicemail loops, no callback queues, no waiting until Monday to get on the schedule.
Duct Insulation in Hollywood
Duct Insulation in Hollywood is often the missing half of a sealing job. In this climate, sealing leaks without reinsulating is like fixing a roof leak and leaving the water-stained ceiling. Hollywood’s tropical monsoon climate means condensation forms on duct surfaces almost year-round, especially in attics and crawl spaces where temperature differentials are extreme. When we seal rusted metal seams or reconnect flex runs in a 1940s bungalow off Hollywood Boulevard or a mid-century ranch near TY Park, we almost always find the original insulation degraded, compressed, or missing entirely. That exposed metal sweats, breeds mold, and wastes the efficiency we just gained by sealing.
A typical duct insulation job in Hollywood runs $300 – $800 when done as part of a sealing project, or $600 – $1,400 as a standalone job for a full system. The price depends on linear footage, attic accessibility, and whether we’re wrapping existing sealed ducts or replacing waterlogged material in a crawl space.
Attic and Crawl Space Wraps
Most Hollywood bungalows and ranches have duct runs in the attic or a raised crawl space. We use foil-faced fiberglass wrap or closed-cell foam sleeve insulation, depending on the clearance and moisture exposure. The goal is maintaining the temperature of conditioned air from the air handler to the vent, not dumping cool air into a 140-degree attic.
High-Rise Chase Insulation
In beachside condos, vertical duct chases often lack proper insulation between the chase wall and the duct itself. We install thermal barrier insulation and seal air infiltration paths where salt-corroded metal meets concrete. This stops both condensation and the cross-unit air transfer that shared chases allow.
HVAC Duct Sealing in Hollywood
HVAC Duct Sealing in Hollywood addresses the leaks, gaps, and disconnections that waste conditioned air and pull humid, unfiltered air into your system. In this market, we see two distinct failure patterns. In the older homes west of Federal Highway, decades of condensation have rusted original galvanized metal seams and crushed or disconnected add-on flex runs. In beachside high-rises along Hollywood Beach and the Intracoastal, salt-laden air corrodes duct chases and vertical shared-vent runs, creating infiltration paths that standard sealing approaches miss.
Whole-house HVAC duct sealing in Hollywood typically costs $450 – $1,200. A partial seal of a single trunk line or a few disconnected branches might run $250 – $500. We price by the system, not by the vent, and we write the price down before we start.
Metal Seam and Flex Reconnection
Our standard approach for older Hollywood homes is camera inspection first, then source removal with negative-air HEPA filtration, then sealing with mastic compound and fiberglass mesh tape on metal seams. Crushed or disconnected flex gets reconnected with proper supports and sealed with UL-181 tape and mastic. We don’t use duct tape. It dries out and fails in this humidity.
Corrosion and Infiltration Sealing
For high-rise and coastal applications, we address the building envelope penetration points where salt air enters the chase. This may involve sealing around duct supports, repairing corroded sections with galvanized patch and mastic, and installing corrosion-resistant coatings on exposed metal. The sealing has to stop both duct leakage and building infiltration.
Trusted Brands We Service in Hollywood
Hollis Air Duct Cleaning stocks parts and materials from Honeywell, Aprilaire, and Abatement Technologies for Hollywood jobs, which means faster turnaround and no waiting on special orders for standard components. Honeywell and Aprilaire filtration and ventilation products integrate directly with sealed duct systems to maintain pressure balance and air quality after we’ve closed the leaks. Abatement Technologies HEPA-negative air machines are what we use during the cleaning phase that precedes sealing, ensuring we don’t just blow contaminants through the house while we’re working. For Hollywood homeowners, this means the crew shows up with what they need, finishes in the quoted time frame, and doesn’t leave to hunt parts across Broward County.
Common Duct Sealing Problems We See in Hollywood Homes
- Rusted galvanized seams in pre-1950s bungalows. Decades of condensation in Hollywood’s humid climate corrode the original metal trunk lines at every joint. We regularly find seams that have separated entirely, dumping cooled air into the attic and pulling 130-degree attic air back into the return.
- Crushed or disconnected flex duct in mid-century ranches. The add-on flex runs common in 1950s – 1970s Hollywood homes get pinched under insulation, chewed by rodents, or simply pulled loose from the trunk by vibration. A camera inspection finds what a visual check misses.
- Salt corrosion in beachside high-rise chases. In condos along Hollywood Beach and the Intracoastal, we frequently find white salt crust and rust flakes inside vent openings. This signals that the building envelope or HVAC intake is pulling in ocean mist, and sealing must address the infiltration path, not just the duct gap.
- Shared vertical ventilation between condo units. High-rises with original construction often have chases that connect multiple floors. Without proper sealing and isolation, odors, moisture, and contaminants travel between units. Our sealing approach includes fire-rated foam and mastic at chase boundaries.
Pricing for Duct Sealing in Hollywood, FL
Whole-house duct sealing in Hollywood runs $450 – $1,200. Partial sealing of a single trunk line or a few branch connections: $250 – $500. Duct insulation added to a sealing job: $300 – $800. Standalone insulation for a full system: $600 – $1,400.
What moves the price: accessibility (crawl space versus open attic), linear footage of ductwork, extent of corrosion or damage requiring repair before sealing, and whether we’re working in a single-family home or coordinating with building management in a high-rise. We do not quote per-vent pricing. We price per system, write it down before we start, and it does not change at the door.
Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Hollywood
Our crews work throughout Broward and Miami-Dade counties, including Duct Sealing in Hollywood and neighboring North Miami Beach, Fort Lauderdale, Miami Gardens, and Plantation. Scheduling is coordinated from our Miami office, with local crews dispatched to each area.
Serving Hollywood, FL - Our Local Coverage Area
We’re based in the Hollywood 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 Hollywood
Most original galvanized metal ducts in 1940s Hollywood bungalows can be sealed if the metal is structurally intact. We run a camera inspection to check for severe rust-through or collapse. If the trunk line is sound but the seams are leaking, we clean with negative-air HEPA filtration, seal with mastic and fiberglass mesh, and reinsulate. Replacement is only necessary when the metal has deteriorated to the point of structural failure. Call (361) 326-5060 and we’ll show you exactly what the camera sees.
Hollywood’s tropical monsoon climate means HVAC systems run nearly year-round, creating constant condensation pressure on duct seams and connections. Salt-laden coastal air accelerates corrosion in beachside properties. Combined with a housing stock that includes original 1920s – 1950s metal duct systems, these conditions produce leaks faster than inland markets with drier climates and newer construction. Call (361) 326-5060 for a free inspection.
No. Proper duct sealing uses mastic compound, a thick paste that remains flexible, reinforced with fiberglass mesh tape on metal seams. Flex connections get mechanical supports plus UL-181 tape and mastic. In Hollywood’s humidity, standard duct tape dries and fails within months. We also run a pressure test or smoke test after sealing to verify results. Call (361) 326-5060 for an estimate.
Yes, with building management coordination. Shared vertical chases in Hollywood Beach and Intracoastal high-rises require sealing at unit boundaries with fire-rated materials, plus addressing corrosion and air infiltration paths where salt air enters the chase. We document our scope in writing for HOA or building engineer review before starting. Call (361) 326-5060 to discuss your building’s specific configuration.
Signs you need sealing, not just cleaning: rooms that won’t cool evenly, excessive dust return after cleaning, musty smells that persist, or energy bills that spike without explanation. We include a basic leak check with every duct cleaning and will show you camera footage of any gaps or disconnections. If we find leaks, we give you a written price for sealing before we proceed. Call (361) 326-5060 to schedule.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Hollywood since 2004.




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