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 College Park
Duct sealing in College Park typically runs $450 – $950 for a whole-home system, and most jobs are scheduled within a few business days after you call. If you’re living in one of the mid-century brick ranches off Rugby Avenue or the bungalows near Old National Highway, your ducts have likely been leaking since before you moved in. We serve College Park from our Atlanta office, and our crews know the difference between ordinary dust and the dark, gritty airport particulate that collects in homes under the Hartsfield-Jackson flight path. Call (361) 326-5060 for a free estimate, and we’ll show up inside the window we promised.
Why Hollis Air Duct Cleaning Is College Park’s Preferred Duct Sealing Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Duct Sealing team has worked on enough College Park homes to know what the city’s housing stock hides. Our technicians are background-checked and uniformed, and every job starts with a written price that doesn’t move once work begins. The 365-Day Done Right Promise covers every repair in writing: if the work fails within a year, we come back and make it right at no charge, including a free second visit. Phones are answered by a live person 24 hours a day, 7 days a week, so you’re not waiting until Monday to schedule.
College Park homeowners call us because we’ve seen what other crews miss. The airport-adjacent particulate here, the original galvanized ductwork in 1940s – 1960s builds, the crushed flex-duct branches that retrofits left behind. We explain what we find with a camera, show you before-and-after photos of your own system, and seal only after we’ve fixed what’s actually broken. That’s The Garrison Standard, and it’s how we work on every job.
Duct Repair in College Park
Duct Repair in College Park usually starts with a discovery: what looks like a sealing job is often a reconnection or replacement job first. In the mid-century brick ranches off Rugby Avenue and Roosevelt Highway, our techs routinely pull supply and return ducts with original galvanized runs and find crushed flex-duct branches and disconnected boots that had been leaking for years. On one job near Old National Highway, we used camera inspection and agitation tools under negative pressure with HEPA filtration, found a disconnected return boot in the air handler closet plus multiple seam failures in the original galvanized trunk, then sealed the repaired connections and duct joints. The result was a restored lint pathway and a measurable cut in the dark grit blowing through the registers. Because these homes sit close to Hartsfield-Jackson, we also sealed around the air handler and blower motor compartment to block the airport-area particulate that was being drawn into the system.
A typical Duct Repair in College Park runs $350 – $750 depending on how many runs need reconnection, whether we’re working with original galvanized or retrofitted flex-duct, and whether the air handler compartment needs sealing against airport particulate ingress.
Disconnected and Crushed Runs
The most common find in College Park’s older homes isn’t a small leak. It’s a duct that’s completely separated from the boot, or a flex-duct branch that’s been crushed by a storage box in the crawl space for twenty years. Sealing over that doesn’t fix anything. We reconnect or replace the damaged section first, then seal the joints.
Air Handler Compartment Sealing
Homes under the Hartsfield-Jackson flight path draw in jet exhaust, de-icing residue, and construction dust through every gap in the air handler closet. We seal the platform, the return plenum, and the blower motor compartment itself, not just the duct seams, to stop that particulate from entering the system.
Air Duct Sealing in College Park
Air Duct Sealing in College Park is the second phase of most jobs we do here, not the first. The city’s humid subtropical climate, hot humid summers and mild damp winters, produces high indoor humidity that fosters mold and mildew growth inside ductwork and evaporator coils. Sealing without cleaning first traps that moisture and biological growth in place. And in airport-adjacent neighborhoods, sealing without addressing the dark gritty residue in return boots just gives that particulate a more efficient delivery system into your living space.
We use duct sealing mastic and professional-grade reinforcement materials, not tape that dries and fails. For homes with Aprilaire or Honeywell filtration systems, we verify that the sealed ductwork can handle the static pressure of correctly rated MERV filters without straining the blower. A typical Air Duct Sealing job in College Park runs $450 – $950 for a whole-home system, with larger homes or multiple HVAC zones toward the higher end.
Mastic Sealing and Reinforcement
We brush on water-based duct sealing mastic, a thick compound that remains flexible after curing, and reinforce joints with embedded mesh. This outlasts foil tape by years, especially in College Park’s crawl spaces and attics where temperature swings are extreme.
Post-Sealing Verification
After sealing, we run a pressure test to confirm the system holds. We also check that your evaporator coil and blower wheel are clean, because sealed ducts move air more efficiently and will push any remaining debris harder through the registers.
Trusted Brands We Service in College Park
Our equipment roster includes Rotobrush rotary brush systems for agitation cleaning, Nikro negative-air machines for controlled debris removal, and filtration products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. For College Park homeowners, this means we stock parts and materials locally and can source replacement components for most HVAC brands without the long wait times that plague smaller outfits. If your mid-century ranch still runs its original system or you’ve upgraded to modern rooftop-packaged units near the airport or MARTA stations, we carry the sealing mastics, collars, and reinforcement materials to match. Fast turnaround matters here because College Park’s climate doesn’t give you a long shoulder season to wait on parts.
Common Duct Sealing Problems We See in College Park Homes
- Sealing over disconnected or crushed runs. In College Park’s older brick ranches and bungalows, original galvanized or partially retrofitted flex-duct systems often have disconnected or crushed runs first found during a cleaning. Sealing the leaks without reconnecting or replacing crushed runs just traps the airport-area particulate and airflow issues in place.
- Ignoring the air handler and blower compartment. Homes under the Hartsfield-Jackson flight path draw in jet exhaust, de-icing/anti-icing residue, and construction dust. If sealing stops at the duct seams without addressing the air handler closet and blower motor compartment, the dark grit keeps entering the system.
- Neglecting humid subtropical ductwork conditions. Hot, humid summers followed by mild, damp winters in College Park create high indoor humidity that fosters mold and mildew inside ductwork and evaporator coils. Sealing without post-summer cleaning, dehumidification, or correctly rated MERV filtration can trap moisture and biological growth rather than solve it.
- Using the wrong materials for the housing type. Original galvanized trunk lines in 1940s – 1960s College Park homes expand and contract differently than modern flex-duct. Tape fails on these surfaces. Mastic with embedded mesh is the only lasting solution, and many crews skip it because it takes longer to apply.
Pricing for Duct Sealing in College Park, GA
Here’s what Duct Sealing costs in College Park’s market:
- Whole-home Air Duct Sealing (typical 3-bedroom ranch or bungalow): $450 – $950
- Duct Repair with reconnection/replacement of crushed or disconnected runs: $350 – $750
- Air handler compartment sealing (airport-particulate blocking): $200 – $400
- Combined Duct Repair + Air Duct Sealing package: $650 – $1,200
What moves the price: the number of HVAC zones, whether we’re working in a crawl space or attic, how much of the original galvanized system remains versus retrofitted flex-duct, and whether the air handler compartment needs sealing against airport-area particulate. We give you one flat price per system, agreed in writing before any work starts. No per-vent pricing, no add-ons at the door. Every estimate is free, and we show you camera footage of what we found so you understand why the price is what it is. Call (361) 326-5060 for your exact quote.
We Also Serve Cities Near College Park
Our crews work throughout metro Atlanta, and we regularly schedule Duct Sealing in College Park alongside jobs in Atlanta, South Fulton, Sandy Springs, and Roswell. Dispatch and scheduling are coordinated from our Atlanta office, and we route crews to minimize drive time so we arrive inside the quoted window.
Serving College Park, GA - Our Local Coverage Area
We’re based in the College 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 College Park
College Park’s position directly under Hartsfield-Jackson’s flight path means homes here accumulate airport-related particulate, jet exhaust, de-icing residue, and construction dust, at rates higher than comparable suburbs. That grit accelerates wear on duct seams and blower components, and the city’s mid-century housing stock with original galvanized or retrofitted flex-duct systems was never designed for this load. Call (361) 326-5060 for a free inspection and we’ll show you what your system is dealing with.
The dark, gritty residue our technicians find in College Park return boots and blower compartments is consistent with jet exhaust, de-icing/anti-icing residue, and airport construction dust rather than ordinary household dust. It means your system is drawing in airport-area particulate through gaps in the ductwork, air handler closet, or blower motor compartment. Sealing without addressing these entry points just gives that grit a more efficient path into your living space.
We start with camera inspection. If we find disconnected boots, crushed flex-duct branches, or failed galvanized seams, that’s Duct Repair first. Sealing comes after the mechanical connections are sound. In College Park’s 1940s – 1960s brick ranches and bungalows, we find repair-worthy damage on about two-thirds of the jobs we bid. Call (361) 326-5060 and we’ll show you exactly what your system needs.
Yes. College Park’s hot, humid summers and mild, damp winters produce high indoor humidity that fosters mold and mildew inside ductwork and evaporator coils. Sealing dirty, moist ducts traps that biological growth in place. We clean and dehumidify before we seal, and we verify your filtration can handle the load afterward.
We arrive inside the quoted window, inspect with a camera, and show you what we find. On a typical mid-century College Park ranch, that means checking original galvanized trunk lines for seam failure, flex-duct retrofits for crushing or disconnection, and the air handler compartment for airport-particulate ingress points. We give you a written price before any work starts, repair what needs repairing, seal with mastic and mesh reinforcement, pressure-test the system, and leave you with before-and-after photos and a 365-Day Done Right Promise in writing.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving College Park since 2004.