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 Holiday
Duct sealing in Holiday, FL typically runs $400 – $950 for a whole-home system, and most jobs are completed in a single visit after a written estimate. If your AC is running constantly but rooms stay warm, or your energy bill spikes every summer, the problem is often air leaking into your attic through gaps in ductwork that should have been sealed decades ago.
We’re the Duct Sealing crew at Hollis Air Duct Cleaning, and we know Holiday’s housing stock inside and out. From the ranch homes off US-19 to the canal-front properties along the Anclote River, we’ve sealed ductwork in the kinds of houses that dominate this market: modest single-story builds from the 1970s and 80s with original flex-duct runs baking in hot attics. Our technicians are background-checked, uniformed, and dispatched from our South FL coordination office, which means we serve Holiday with local crews who understand what Florida humidity does to aging duct systems. Call us at (361) 326-5060 for a free written estimate before any work starts.
Why Hollis Air Duct Cleaning Is Holiday’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Holiday customers come back because we price jobs in writing before touching anything. No estimates that balloon once we’re inside. The 365-Day Done Right Promise covers every duct sealing job: if a seam fails or a boot connection loosens within a year, we return and make it right at no charge, including a free second visit.
Our 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 when your AC is pushing 85-degree air through a crushed attic trunk. Technicians arrive inside the quoted window, in uniform, with equipment from Rotobrush, Nikro, and Abatement Technologies. We explain what we find in plain terms, show you before-and-after photos of your own ducts, and leave the site clean. That’s The Garrison Standard.
Duct Sealing Services in Holiday
Duct Sealing Services in Holiday focus on stopping conditioned air from escaping into your attic through gaps, disconnected joints, and deteriorated mastic at duct boots and trunk lines. In a typical Holiday ranch home built in the 1970s or 80s, we find flex-duct runs that have sagged, crushed, or separated from the plenum after decades of heat cycling. Sealing restores airflow to the rooms that need it and reduces the load on your AC compressor. A typical whole-home duct sealing job in Holiday runs $400 – $950 depending on system size and accessibility.
Boot and Trunk Sealing
We apply professional-grade mastic to every metal-to-metal and metal-to-flex connection in your attic. In Holiday homes with original 1978-era ductwork, the factory mastic has often dried to dust. We scrape, clean, and reseal each joint so air moves through the register, not into your insulation.

Flex-Duct Repair and Replacement
When flex runs are crushed by storage boxes or degraded beyond sealing, we replace the damaged section with new insulated flex duct and secure it with proper strapping. No duct tape. Duct tape fails in Florida attics; mastic and mechanical fasteners last.

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 Holiday
Duct Insulation in Holiday addresses a problem most homeowners don’t see: sweating, uninsulated metal trunks and flex runs that lose 20 – 30% of their cooling energy before air ever reaches your living room. In Holiday’s humid subtropical climate, where AC runs eight to ten months a year, poorly insulated attic ductwork is like pouring chilled water into a warm glass. It sweats, drips onto ceiling drywall, and breeds mold. Adding or replacing duct insulation typically costs $300 – $700 for a Holiday home, depending on linear footage and whether we’re wrapping existing runs or installing new after sealing.
Vapor-Barrier Wrapping
We wrap sealed metal trunks and repaired flex runs with foil-faced insulation rated for Florida attic temperatures. This stops condensation, protects the sealant underneath, and keeps your cooled air cold until it exits the register.
Attic Chase Insulation
Many Holiday ranch homes have duct chases framed into the attic floor with no insulation at all. We fill these cavities with proper batt or spray-foam barriers so your ductwork isn’t fighting a 140-degree attic box all summer.
Trusted Brands We Service in Holiday
We stock parts and materials from Aprilaire, Abatement Technologies, and Guardsman for Holiday customers, which means we don’t order components and make you wait. Our vans carry Rotobrush rotary brush systems for source removal, Nikro negative-air machines for containment, and filtration products from Honeywell and Aprilaire. When we find a crushed flex run or a failed boot connection in a Holiday attic, we repair it with the same materials commercial crews use, not hardware-store tape and hope. That keeps turnaround fast and the repair permanent.
Common Duct Sealing Problems We See in Holiday Homes
- Heat-cycled mastic failure. The original mastic sealing your 1970s Holiday ranch home’s duct boots has dried and cracked after 40-plus summers. We scrape the old material, clean the metal, and apply new mastic that flexes with temperature swings.
- Snowbird moisture damage. In canal-front condos and homes along the Anclote River, vacant properties sit with AC off for months. Humidity condenses inside ductwork, loosens tape, and separates flex connections. Springtime calls before owners return routinely reveal mold on duct interiors and separated runs that need sealing, not just cleaning.
- Rodent-compromised attic chases. Holiday’s older ranch homes with original attic ductwork often harbor rodent debris and gnawed flex. We clean and repair the damaged runs first, then seal. Taping over contamination guarantees failure.
- Crushed main trunks from storage. Homeowners store holiday decorations and spare lumber on flex-duct runs. A flattened trunk line can’t be sealed; it must be reshaped or replaced, then integrated back into the system with proper boot connections.
Pricing for Duct Sealing in Holiday, FL
A typical duct sealing job in Holiday runs $400 – $950 for a whole-home system. Duct insulation adds $300 – $700 depending on linear footage. What moves the price: system size (a 3-ton single-zone ranch vs. a larger multi-zone home), attic accessibility (tight truss spaces take longer), and whether we’re sealing intact ductwork or replacing crushed flex runs and rodent-damaged sections first.
We give you one flat price per system, agreed in writing before work starts. No per-vent pricing, no add-ons at the door, no bait-and-switch. Every Hollis job includes before-and-after photos of your own ducts so you see what was done. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Holiday
Our crews work throughout Pasco and northern Pinellas County. We regularly handle Duct Sealing in Holiday and surrounding communities including Elfers, New Port Richey, Tarpon Springs, and Palm Harbor. Same equipment, same written pricing, same 365-Day Done Right Promise at every stop.
Serving Holiday, FL - Our Local Coverage Area
We’re based in the Holiday 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 Holiday
It’s almost always mold and mildew growing inside ductwork that sat humid and stagnant for months. In Holiday’s canal-front and Anclote River neighborhoods, snowbird condos and homes sit shuttered with AC off or set high, so flex-duct runs cook in the attic and humidity condenses inside the ductwork. When the system finally runs, it pushes that musty air through every register. We inspect with a camera, remove contaminated material under negative pressure with HEPA filtration, seal the joints that let moisture in, and insulate to prevent recurrence. Call (361) 326-5060 for a free estimate.
Most 1970s Holiday ranch homes can be sealed successfully if the metal trunk lines are intact. We typically find dried mastic, separated flex connections, and sagging runs that need re-strapping, not full replacement. If a trunk is rusted through or a flex run is crushed flat, we replace that section and integrate it with the sealed system. We give you a written price for both scenarios before starting. Call (361) 326-5060 to schedule an inspection.
Yes, but we clean and repair first, seal second. Rodent debris and gnawed flex in Holiday’s attic chases defeats sealing if you just tape over it. We remove contaminated material, install new flex or repair metal where needed, then seal with mastic and insulate. The 365-Day Done Right Promise covers our work for a full year. Call (361) 326-5060 for an exact quote.
Sealed ducts prevent your AC system from pulling humid attic air into the living space when windows are closed for storms. During hurricane prep and the June – September rainy season, Holiday homes run AC continuously with no natural ventilation. Leaky ductwork forces the system to dehumidify attic air along with living space air, which overworks the compressor and spreads musty odors. Sealing keeps conditioned air separate from attic humidity. Call (361) 326-5060 to schedule before the peak season.
Duct cleaning removes built-up dust, debris, and biological growth from inside the ductwork. Duct sealing closes the gaps and disconnected joints that let air escape into the attic. In Holiday’s 1970s-80s housing stock, we often recommend both: cleaning to remove decades of accumulation and rodent debris, then sealing to fix the leaks that made the system inefficient in the first place. We price each separately in writing so you choose what fits. Call (361) 326-5060 for a free estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Holiday and the greater Tampa Bay area since 2004.




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