Duct Sealing in University - Tested First, Written Price Second

Fast, Reliable Duct Sealing Across University

We seal ductwork for homeowners and landlords throughout University, from the ranch homes off Fletcher Avenue to the student rentals clustered around USF. Our crews dispatch from our Miami office and typically schedule University jobs within two to three business days, sometimes faster during the slower winter months when student turnover drops. We’ve been sealing ducts in this market long enough to know that University’s combination of aging housing stock and brutal humidity creates leak patterns you won’t find in drier climates. If your registers blow weak, your attic ductwork sweats, or your AC runs nonstop without cooling the house, call us at (361) 326-5060 for a free inspection and written estimate.

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Why Hollis Air Duct Cleaning Is University’s Preferred Duct Sealing Company

We’ve worked in University since before many of the apartment complexes near campus were built, and that history shows in how we price and perform the work. Our Duct Sealing team knows the difference between a 1970s ranch with galvanized trunk lines and a 2005 student rental with flex duct stapled to the rafters, and we adjust our approach accordingly.

Roy Castellanos built this operation on The Garrison Standard: written prices before any work starts, background-checked uniformed technicians, and a 365-Day Done Right Promise backed in writing. If our seal fails within a year, we return 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. You’ll never hit a voicemail loop or wait until Monday for a callback. That’s not a sales pitch; it’s how we run the business.

Our technicians arrive in marked vehicles, in uniform, with photo ID. You know who’s walking into your home before they knock. In a market full of student rentals and tenant turnover, that accountability matters.

Air Duct Sealing in University

Air Duct Sealing in University means finding and closing the gaps, cracks, and disconnected joints that let conditioned air escape into your attic, crawl space, or walls. In this climate, it also means stopping humid outside air from being sucked into the system through those same leaks. We use professional-grade mastic compounds and reinforced tape rated for Florida’s temperature swings, not the hardware-store foil tape that peels off in a hot attic within two summers. A typical residential duct sealing job in University runs $450 – $850 for a single-system home, with larger homes or multi-zone systems running higher. Student rentals and smaller apartments often fall in the $280 – $450 range.

What We Seal

We seal supply and return trunk lines, plenum connections, register boots, and the flex-to-trunk joints where most University rentals leak. Our crew pressurizes the system to locate leaks the eye can’t see, then seals them with mastic rated for 200°F continuous exposure. We photograph before and after conditions so you can see the work.

When Sealing Becomes Urgent

If your energy bill spikes in July or August while comfort drops, you likely have major leakage. In University’s climate, that also means your attic air handler is pulling 95-degree, 85-percent-humidity air through gaps in the return duct, which overloads the coil and can trigger freeze-ups. Sealing stops that cycle.

Duct Sealing Services in University

Duct Sealing Services in University cover everything from spot repairs on crushed flex runs to full-system sealing with post-work airflow verification. We don’t quote per-vent or per-linear-foot pricing, which always balloons at the door. We give one flat price per system, agreed in writing before we touch anything. For a typical 1,500-square-foot ranch near Amberly Drive or a comparable USF-area rental, expect $450 – $650. Homes over 2,500 square feet with multiple air handlers generally run $750 – $1,200. Commercial-scale student housing with rooftop units is priced separately after inspection.

Our Sealing Process

We start with a visual inspection and airflow test, then seal accessible leaks using mastic and mechanical fasteners. For buried ductwork or inaccessible attic runs, we evaluate whether sealing is practical or whether section replacement makes more sense. We explain both options and their costs before proceeding.

Post-Work Verification

After sealing, we measure static pressure and register airflow to confirm improvement. We provide photos of sealed joints and a written summary of what was found and fixed. If the numbers don’t move, we keep looking until we find the leak.

Trusted Brands We Service in University

We stock parts and sealing materials from Honeywell, Aprilaire, and Abatement Technologies, the same filtration and airflow brands used in commercial buildings across Tampa Bay. For University’s older ranch homes with original metal ductwork, we carry mastic and reinforcement mesh compatible with galvanized steel. For the 1990s-and-later flex duct common in student rentals, we source UL-181 rated tape and collars that won’t degrade in attic heat. This local inventory means most University jobs are completed in one visit without waiting on shipped parts. If your system uses specialized components, we’ll tell you upfront and schedule accordingly.

Common Duct Sealing Problems We See in University Homes

• Crushed flex duct in USF-area rentals. Student housing built in the 1990s and 2000s often used cheap flexible ductwork that gets crushed by storage items in closets or attic spaces, or torn at the collar during any movement. We regularly find bedrooms getting no airflow because a flex run has detached entirely.
• Wet, moldy joints in 1960s – 80s ranch attics. The original duct tape on these systems dried out decades ago, and the constant AC runtime in University’s climate means unsealed metal joints stay damp with condensation. Biological growth follows within a season.
• Missed plenum leaks in tenant-occupied units. When landlords rush turnaround between semesters, crews often seal only the easy register boots and skip the air handler plenum and return duct connections where the biggest leaks hide.
• Humidity intrusion through return leaks. In University’s subtropical climate, a return duct pulling attic air doesn’t just waste energy, it introduces enough moisture to overwhelm the AC’s dehumidification capacity, leaving rooms clammy even when the temperature reads 72.

Pricing for Duct Sealing in University, FL

We Also Serve Cities Near University

Our crews travel throughout the region for scheduled duct sealing work. We regularly serve University along with Jacksonville, Miami, Tampa, and Orlando. Dispatch and scheduling are coordinated from our Miami office, with local crews assigned to minimize drive time and keep appointments inside the quoted window.

FAQs About Duct Sealing in University