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 Citrus Park
Duct sealing in Citrus Park typically runs $450 – $1,200 for a whole-home seal, depending on whether we’re addressing accessible joints or replacing rodent-damaged flex duct in the attic. Most jobs take a half day, and we give you a written price before any work starts. Call (361) 326-5060 for a free estimate.
We’ve worked in Citrus Park long enough to know the difference between a subdivision built in 1985 and one built in 1998, and what that means for what’s hiding in your attic. Our crews dispatch from our South Florida scheduling office and serve Citrus Park homes directly. We know the area around Citrus Park Boulevard, the homes backing up to Upper Tampa Bay Park, and the particular headache of attic flex duct that has been baking in 130°F heat since the Reagan administration. When you call Hollis Air Duct Cleaning, you’re talking to a live person who knows Citrus Park is northwest of Tampa, not a suburb of Orlando, and who can get a uniformed, background-checked technician to your door with the right equipment for your home’s actual condition.
Why Hollis Air Duct Cleaning Is Citrus Park’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004, and our Duct Sealing in Citrus Park follows The Garrison Standard: arrive inside the quoted window, price in writing, complete the job by the book, leave the site clean. That standard matters here because too many Citrus Park homeowners have had a crew show up with a fogging machine, spray a “sanitiser” into their registers, and call it duct sealing. That is not what we do.
Our technicians are background-checked and uniformed. You know who is walking into your home before they arrive. 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 running constantly and your power bill is climbing.
Every job we do in Citrus Park comes with 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. That promise is backed in writing on every job, not mentioned verbally and forgotten. We use professional-grade equipment from Rotobrush, Nikro, and filtration products from Honeywell, Aprilaire, and Abatement Technologies. These are the same tools commercial crews use, and we explain what they do in plain terms before we start.
Duct Repair in Citrus Park
Duct Repair in Citrus Park often means dealing with flexible ductwork installed during the 1980s and 1990s building boom, now sagging, torn, or disconnected at joints after decades in punishing attic conditions. When a homeowner in Citrus Park calls us because one room won’t cool or their energy bill has jumped, we start with a camera inspection of the attic runs. The repair may involve reconnecting a collar at the air handler, replacing a crushed or chewed section of flex duct, or reinforcing a sagging line that has pulled away from its support strap. A typical duct repair in Citrus Park runs $280 – $650 for localized fixes, while extensive replacement of multiple runs can reach $1,100 – $2,400.
When Repair Beats Replacement
If your flex duct has intact insulation and the tear is at a joint or collar, we can often repair it with proper mastic and mesh reinforcement, then seal the surrounding connections. This saves the cost of full replacement and works well for homes in newer Citrus Park sections where the original install was solid. We only recommend what the condition supports.
Rodent Damage Near Park Areas
In neighborhoods close to Upper Tampa Bay Park and the wooded corridors along Gunn Highway, we regularly find squirrel and rat damage to thin plastic flex duct. Chewed sections cannot be sealed effectively. The insulation is compromised, and any repair without replacement simply gives the rodents a head start on their next entry point. We replace the damaged run and seal the new connection properly.
Air Duct Sealing in Citrus Park
Air Duct Sealing in Citrus Park is fundamentally a moisture-control job, not merely an efficiency upgrade, because this area’s 1980s-90s subdivisions were built with attic-mounted flex duct that now sits in 130°F summer heat and 80%+ humidity during the June-September rainy season. When joints tear and collars loosen, your HVAC system pulls that hot, humid attic air directly into your living space. The result is an AC that runs constantly, musty odors, and mold growth inside duct liner that no filter will stop. A proper air duct seal addresses every accessible joint, plenum connection, and air handler cabinet gap using mastic and mesh, not tape that dries and fails. Typical whole-home duct sealing in Citrus Park runs $450 – $1,200, with larger homes or those requiring extensive joint access toward the higher end.
The Negative-Pressure Envelope
Your return ducts operate under negative pressure. Every gap pulls air in. In Citrus Park, that air is hot, humid, and loaded with pollen from live oaks and mold spores from the nearby bay. Sealing only the supply side or only visible registers misses the problem. We seal both sides of the system and verify with static pressure testing.
What Mastic Actually Does
Mastic is a thick, flexible sealant applied with a brush over mesh tape at every joint. Unlike foil tape, it does not dry out and peel in attic heat. In Citrus Park’s climate, that matters. A mastic seal flexes with thermal expansion and maintains its bond through years of temperature swings. We apply it at every collar, every branch, and every air handler penetration.
Trusted Brands We Service in Citrus Park
We stock parts and materials from Honeywell, Aprilaire, and Abatement Technologies for Citrus Park jobs, which means faster turnaround and no waiting on shipped components when your system needs attention. Our equipment roster includes Nikro negative-air machines for source removal before sealing, and Rotobrush rotary brush systems for mechanical cleaning of duct interiors. For filtration upgrades after sealing, we source Honeywell and Aprilaire media filters sized to your system’s airflow, not generic inserts that restrict flow and strain your blower. Having the right parts on the van means we complete most Citrus Park jobs in a single visit, with no return trip because something was missing.
Common Duct Sealing Problems We See in Citrus Park Homes
- Original R-4 flex duct sagging and tearing at collars. In Citrus Park Estates and similar 1980s subdivisions, the thin insulation and plastic outer layer of original flex duct has become brittle after decades in 130°F attics. The collar connections crack first, creating gaps that pull humid attic air into the system.
- Rodent damage in attics near wooded areas. Squirrels and rats common near Upper Tampa Bay Park chew through flex duct’s thin plastic jacket and fiberglass insulation. The damage is often hidden above insulation and only visible with camera inspection. Sealing around chewed sections is pointless; the run must be replaced first.
- Aerosol “sanitiser” fogging sold as sealing. Some operators fog a chemical into ducts and call it clean. This masks odor temporarily but does nothing about the 80% attic humidity that feeds mold regrowth, especially during Citrus Park’s rainy season. Physical source removal and mechanical sealing are the only lasting fix.
- Air handler cabinet gaps overlooked. In a 130°F attic, gaps at the blower motor mounting or filter rack pull in massive volumes of hot, humid air. A high MERV filter cannot compensate for unsealed cabinet leaks. We seal these points as standard practice, not as an upsell.
Pricing for Duct Sealing in Citrus Park, FL
Whole-home duct sealing in Citrus Park typically runs $450 – $1,200. Localized sealing of accessible joints and registers starts around $280 – $450. If we find rodent-damaged flex duct requiring replacement, that adds $180 – $340 per run depending on length and attic access difficulty. Homes in Fawn Ridge or other areas with tight attic clearances may run toward the higher end of these ranges simply because the work takes longer.
What drives cost: the number of duct runs, attic accessibility, whether we need to remove and replace damaged flex duct before sealing, and whether the air handler cabinet requires sealing. We inspect first, show you what we found, and give you a written price before any work begins. That price does not move at the door. No per-vent gimmicks, no teaser coupon that balloons once the van is in your driveway. Call (361) 326-5060 for a free estimate. Estimates include camera inspection of attic runs so you see what we see.
We Also Serve Cities Near Citrus Park
Hollis Air Duct Cleaning provides Duct Sealing throughout the region, including Jacksonville, Miami, Tampa, and Orlando. Each location operates independently under The Garrison Standard, with locally dispatched crews and the same written pricing and 365-Day Done Right Promise. If you’re outside Citrus Park but in our service area, the same equipment and standards apply.
Serving Citrus Park, FL - Our Local Coverage Area
We’re based in the Citrus Park 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 Citrus Park
Citrus Park’s 1980s-90s subdivisions were built with attic flex duct that has now reached end-of-life, while central Tampa’s historic bungalows often have basement or crawl space systems with different failure modes. The combination of 130°F attic heat, 80%+ rainy-season humidity, and nearby wooded areas creating rodent pressure makes unsealed joints here a constant source of humid air infiltration. Call (361) 326-5060 for an inspection and exact quote.
Duct sealing stops the humid attic air that feeds mold growth, but it cannot remove existing mold. If your ducts already have visible mold in the liner, we perform source removal under negative pressure with HEPA filtration first, then seal to prevent recurrence. Sealing alone without addressing existing contamination is incomplete. Call (361) 326-5060 to schedule both steps.
Camera inspection reveals the difference. If the flex duct insulation is intact and the failure is at joints or collars, sealing suffices. If the plastic jacket is torn, insulation is compressed or missing, or rodent damage is present, replacement is necessary before any seal will hold. We show you the camera footage and explain which category your system falls into. Call (361) 326-5060 for a free inspection.
A proper seal in Citrus Park means mastic and mesh at every accessible joint, collar, and air handler penetration, verified with static pressure testing before and after. It means sealing both supply and return sides because return ducts operate under negative pressure and pull in humid attic air. It does not mean tape that dries out in attic heat, or fogging chemicals that mask odor. Call (361) 326-5060 for a written scope and price.
A high MERV filter catches particles in the airstream but cannot stop unfiltered attic air from entering through gaps. In Citrus Park’s climate, those gaps pull in 130°F air and 80% humidity that overwhelms your system’s capacity and creates mold conditions no filter prevents. Sealing and filtration work together; either one alone leaves the problem half-solved. Call (361) 326-5060 to discuss your system’s specific leak points.
Ready to stop throwing money at an AC that runs constantly and still leaves rooms muggy? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free estimate on duct sealing in Citrus Park. We’ll inspect your attic runs with a camera, show you exactly what we found, and give you a written price before any work starts. Every job is covered by our 365-Day Done Right Promise. If it’s not right, we make it right. No fogging upsells, no per-vent games, no price that moves at the door.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Citrus Park under The Garrison Standard.




Before
After
Before
After
Before
After