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 Hapeville
Hapeville’s position beneath the Hartsfield-Jackson flight path creates a ventilation challenge no other Atlanta suburb faces. Your ductwork isn’t just moving conditioned air; it’s pulling in jet-fuel particulates, rubber dust from runway braking, and ultrafine aircraft emissions that settle into every seam and joint. Hollis Air Duct Cleaning dispatches crews from our Atlanta office who know this local burden firsthand. We’ve sealed ducts in the post-war ranches along Virginia Avenue, the bungalows near the historic downtown core, and the modest homes clustered along North Avenue. When your supply registers are blowing lukewarm air in July or your bedroom stays ten degrees off from the thermostat setting, the problem is often leakage at the plenum, at flex-duct connections, or through corroded metal seams that Hapeville’s humidity and aviation soot have worn down over decades. Call us at (361) 326-5060. We’ll quote a written price before any work starts, and every seal is covered by our 365-Day Done Right Promise.
Why Hollis Air Duct Cleaning Is Hapeville’s Preferred Duct Sealing Company
We’ve worked in Hapeville long enough to recognize the telltale black film inside return plenums that distinguishes this market. That residue isn’t ordinary dust. It’s a sticky, fine soot born of jet exhaust that clings to metal duct surfaces far more aggressively than household debris, and it degrades mastic and tape seals faster than you’d see in Sandy Springs or Roswell. Our crews arrive with Abatement Technologies sealants and Guardsman-grade tapes rated for this exact environment.
Roy Castellanos built this operation on The Garrison Standard: written prices, written guarantees, and technicians who arrive uniformed, background-checked, and inside the quoted window. No estimate balloons once we’re inside your home. If a seal fails within a year, we return and make it right at no charge, including a free second visit. That’s not a slogan; it’s printed on every job sheet.
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 morning to schedule.
Air Duct Sealing in Hapeville
Air Duct Sealing in Hapeville addresses the pressurized leaks that force your HVAC system to run longer, work harder, and deliver uneven temperatures from room to room. In a typical Hapeville home built between the 1950s and 1970s, rigid metal trunk lines and early flex duct have separated at joints, cracked at elbows, or corroded where crawlspace moisture meets that aviation soot. The result is conditioned air escaping into your attic or crawlspace, and unfiltered outdoor air getting sucked into the return side. We seal with mastic compound and mechanical fasteners, not hardware-store tape that will fail in eighteen months.
When Sealing Beats Replacement
Most Hapeville duct systems we inspect are structurally sound but leaking 20 to 30 percent of their airflow. Sealing restores performance without the cost of full replacement. Our Rotobrush inspection cameras let us show you the exact gaps before we quote, so you’re deciding from facts, not pressure.
The Aviation Soot Factor
That black residue inside Hapeville ducts isn’t just unsightly. It’s acidic over time, and it breaks down standard duct tape adhesives. We use mastic compounds and foil-backed tapes rated for industrial environments because standard residential products don’t hold up here.
Duct Sealing Services in Hapeville
Duct Sealing Services in Hapeville from Hollis cover the full pressurized system: supply trunk lines, branch ducts, return plenums, and the air handler connection. We pressurize the system with a calibrated fan, measure total leakage against the conditioned floor area, then seal every gap above the threshold. For a typical 1,200 to 1,800 square foot Hapeville ranch, the job runs four to six hours and leaves the home with balanced airflow and lower utility bills.
Our Sealing Process
We start with a duct blaster test to quantify leakage in CFM25, cubic feet per minute at 25 pascals of pressure. That number goes on your written quote. We then access joints through existing registers and limited crawlspace entry points, apply mastic with a brush or caulking gun, and reinforce with mesh and tape where structural stress exists.

Post-Seal Verification
After sealing, we rerun the duct blaster test. The after number is recorded on your invoice, alongside the before. You see the improvement in writing, and if the seal degrades within 365 days, we return under our Done Right Promise.

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.
Trusted Brands We Service in Hapeville
Hollis stocks sealing products from Aprilaire, Abatement Technologies, and Guardsman for Hapeville jobs, the same brands commercial HVAC contractors specify for schools and medical facilities. We don’t send a technician to your Virginia Avenue bungalow with a roll of big-box tape and hope for the best. Our Atlanta warehouse maintains inventory of mastic compounds, foil tapes, and aerosol sealants so Hapeville customers aren’t waiting on shipped parts. When your return plenum is pulling that aviation-influenced air through a gap the size of a baseball, turnaround matters. We quote the job with specific materials listed, install what we quoted, and leave the site clean. That’s The Garrison Code in practice.
Common Duct Sealing Problems We See in Hapeville Homes
- Corroded metal seams in crawlspace trunk lines. Hapeville’s humidity, combined with decades of condensation on cold duct surfaces in vented crawlspaces, eats through galvanized steel. We find pinhole leaks and separated seams along the main trunk that bleed conditioned air directly outside the thermal envelope.
- Failed flex-duct connections at the plenum. The original nylon straps and plastic collars in 1960s and 1970s Hapeville ranches have hardened and cracked. The flex duct pulls away, leaving a gap that returns attic air full of insulation fibers and jet particulates into your breathing space.
- Air handler platform leakage. Many Hapeville bungalows have the furnace or air handler sitting on an unsealed plywood platform. The return side pulls air from the mechanical closet or adjacent crawlspace instead of from your living areas, pressurizing the wrong spaces and depressurizing the right ones.
- Register boot separation from drywall or flooring. Thermal expansion and contraction over sixty years of Hapeville summers have loosened the metal boots behind your wall and floor registers. Conditioned air leaks into wall cavities before it ever reaches the room.
Pricing for Duct Sealing in Hapeville, GA
A typical whole-system duct sealing job in Hapeville runs $850 to $1,650 for a single-story ranch or bungalow between 1,000 and 2,000 square feet. Larger homes with complex attic duct routing, or systems requiring extensive crawlspace access repair, can reach $2,200 to $2,800. We price by the system, not by the linear foot or by the number of vents. One flat price per system, agreed in writing before any mastic is opened.
What moves the number: the extent of leakage measured in the duct blaster test, accessibility of your crawlspace or attic, whether we need to replace deteriorated flex duct sections rather than seal them, and the condition of the air handler platform. We do not quote $199 teaser prices that triple once we’re inside. The price on your written estimate is the price on your invoice.
Every quote includes the before-and-after duct blaster test, all materials, labor, and cleanup. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Hapeville
Hollis crews seal ducts across the metro area. We regularly work in Hapeville and nearby Atlanta, South Fulton, Sandy Springs, and Roswell. Dispatch and scheduling are coordinated from our Atlanta office, with local crews serving each market. Whether you’re in a Midtown high-rise or a Roswell subdivision with basement ductwork, the same Garrison Standard applies: arrive inside the window, price in writing, complete the job by the book.
Serving Hapeville, GA - Our Local Coverage Area
We’re based in the Hapeville 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 Hapeville
Duct sealing in Hapeville typically costs $850 to $1,650 for a standard single-story home, which falls in line with Atlanta and South Fulton pricing but can run slightly lower than Sandy Springs or Roswell where larger homes and more complex attic systems are common. The aviation soot in Hapeville doesn’t change the price; it changes the materials we specify to make the seal last. Call (361) 326-5060 for an exact quote on your system.
We seal ducts throughout Hapeville, from the post-war ranches along Virginia Avenue and North Avenue to the bungalows near the historic downtown core and the homes clustered around the airport perimeter. Our Atlanta-dispatched crews know the local housing stock and crawlspace conditions specific to each area. Call (361) 326-5060 to confirm availability for your address.
We schedule Hapeville appointments within our standard booking window, typically two to five business days depending on seasonal demand. Because we’re not a one-truck operation scrambling across three counties, we quote realistic arrival windows and meet them. Emergency duct sealing for active system failure is prioritized; call (361) 326-5060 and a live person will find the next available slot.
Yes, we prioritize active system failures in Hapeville, such as a completely separated return duct pulling unfiltered attic air or a plenum leak causing the HVAC to shut down on high limit. Our phones are answered by a live person 24 hours a day, seven days a week, and we’ll dispatch for same-day assessment when the situation warrants. Call (361) 326-5060 to describe your symptoms.
Every duct sealing job in Hapeville is covered by our 365-Day Done Right Promise in writing. If any sealed joint fails, any mastic cracks, or any tape separates within one year of service, Hollis returns and makes it right at no charge, including a free second visit. The guarantee is printed on your invoice, not implied. Call (361) 326-5060 with any warranty concern.
Ready to stop losing conditioned air to your crawlspace and attic? Our Duct Sealing team serves Hapeville with written prices, verified results, and a full-year guarantee. We also handle Air Duct Cleaning in Hapeville and Dryer Vent Cleaning in Hapeville if your system needs more than sealing. Call Hollis Air Duct Cleaning at (361) 326-5060 for your free estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Hapeville since 2004.




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