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 Braselton
Most Braselton homeowners with uneven room temperatures or rising power bills are losing 20 – 30% of their conditioned air through duct leaks before it ever reaches the vent. Duct sealing in Braselton typically runs $850 – $2,400 for a whole-home seal depending on system accessibility, and our crew can assess your leakage with a pressure test and give you a written price before any work starts. Call (361) 326-5060 for a free estimate – we dispatch from our Atlanta office and serve Braselton neighborhoods from the historic mill village to Chateau Elan and Mulberry.
We’ve worked in Braselton long enough to know the local housing stock isn’t one thing. You’ve got century-old bungalows near downtown that were company housing for the Braselton Cotton Mill, retrofitted decades later with flex duct that was never designed as a sealed system. Then you’ve got 1990s-through-today subdivisions along I-85 where new flex runs get stapled to truss chords in 140-degree attics and occasionally get crushed flat by construction traffic. Two completely different failure modes, same result: air you’re paying to cool or heat never makes it to the room.
Why Hollis Air Duct Cleaning Is Braselton’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004, and our Duct Sealing in Braselton crew operates under The Garrison Standard: arrive inside the quoted window, price in writing before touching equipment, complete the job by the book, leave the site clean. That standard matters more here than in most markets because Braselton sits at the intersection of four counties – Gwinnett, Hall, Jackson, and Barrow – each with its own permitting culture and inspection expectations. Our technicians know which jurisdiction they’re working in before they cross the threshold.
Every Hollis technician is background-checked and uniformed, and we use professional-grade equipment from Nikro, Honeywell, and Abatement Technologies – the same negative-air machines and sealing tools commercial crews use, not hardware-store gear. Our 365-Day Done Right Promise covers every duct sealing job in writing: if the seal fails or the airflow problem returns within a year, we come back 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, seven days a week. No voicemail loops, no callback queues, no waiting until Monday morning to schedule.
Duct Sealing Services in Braselton
Duct Sealing Services in Braselton address the leaks, gaps, and disconnected joints that waste conditioned air and strain your HVAC system. The work starts with a pressure test to quantify leakage against your system’s total airflow, followed by manual sealing of accessible joints with mastic and foil tape, plus aerosolized sealant for hard-to-reach runs when appropriate. Most Braselton homes fall in the $850 – $1,800 range for standard sealing; homes with extensive crawlspace or attic work, or those requiring access panel cuts in finished ceilings, can run $1,500 – $2,400.
Pressure Testing and Leak Detection
We pressurize your duct system and measure airflow loss against NADCA standards. In Braselton’s older mill-village homes, we regularly find leakage rates above 30% – air dumping into crawlspaces and wall cavities through cloth tape that dried out decades ago. Newer subdivisions like Riverbend often show lower overall leakage but concentrated failure points where flex runs separated from boots during settling.

Mastic and Mechanical Sealing
Accessible joints get sealed with UL-181-rated mastic and foil tape, not duct tape (which fails in Georgia humidity). For the historic downtown bungalows, this sometimes means working in 18-inch crawlspaces with original hard-duct that was never meant to be part of a forced-air loop. We bring the right access tools and we price the difficulty before we start.

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 Braselton
Duct Insulation in Braselton protects sealed ducts from the temperature extremes in unconditioned attics and crawlspaces, where summer attic temps regularly hit 130 – 150 degrees and winter lows dip below freezing. Even a perfectly sealed duct will bleed heat if the insulation is compressed, water-damaged, or missing entirely. Typical Braselton duct insulation runs $600 – $1,400 for partial replacement and $1,200 – $2,800 for full re-insulation of an average home, depending on linear footage and R-value needed.
Condensate and Biological Growth Prevention
Braselton’s humid subtropical climate means cold supply lines in hot attics sweat continuously from May through October. Wet insulation loses R-value and becomes a growth medium. We replace compromised insulation with properly rated vapor-barrier products and verify that sealed and insulated runs no longer produce condensate.
Attic Flex Run Protection
In subdivisions like Chateau Elan and Reunion, flex duct stapled to truss bottom chords sits directly against roof deck heat. We add protective strapping and insulation baffles where needed, keeping the flex run off hot surfaces and maintaining the air gap that the original builder often skipped.
Trusted Brands We Service in Braselton
Our Braselton crew carries professional-grade equipment from Nikro, Honeywell, and Aprilaire – negative-air machines, pressure-testing rigs, and filtration components that meet commercial specifications. We stock Honeywell and Aprilaire replacement boots, collars, and damper hardware locally, so most Braselton jobs don’t wait on parts. When we encounter a crushed flex run that needs full replacement rather than sealing, we source matching duct diameter and insulation R-value without the week-long delays that come from ordering through big-box retailers.
Common Duct Sealing Problems We See in Braselton Homes
- Shared vertical chases in condos and apartments. Braselton’s multi-family buildings often route returns through common wall chases. Sealing one unit without addressing the shared chase just moves the pressure imbalance next door. We test the full stack and coordinate with property management when needed.
- Dried mastic and cloth tape in mill-village bungalows. The original hard-duct or early flex systems near downtown Braselton were sealed with materials that degrade in 15 – 20 years. We find gaps at every joint and boot, sometimes with visible daylight through the crawlspace vent.
- Crushed flex runs in new construction. Homes under 10 years old in Chateau Elan and Reunion frequently have flex duct flattened where framing or roofing crews stepped through it. No amount of mastic fixes a squashed run – it needs replacement, then proper sealing.
- Pollen infiltration through return leaks. Braselton’s position in the Piedmont pine belt means March-April pollen loads are among Georgia’s highest. Leaky return plenums pull that yellow dust directly into your system, coating coils and bypassing your filter entirely.
Pricing for Duct Sealing in Braselton, GA
Whole-home duct sealing in Braselton typically costs $850 – $2,400. Here’s how that breaks down:
- Standard single-system seal with accessible attic and crawlspace: $850 – $1,400
- Historic home with extensive crawlspace work or finished-ceiling access panels: $1,400 – $2,000
- Large home with multiple HVAC systems or aerosolized sealant application: $1,800 – $2,400
- Duct insulation replacement (add-on or standalone): $600 – $2,800 depending on scope
What moves the price: accessibility (crawlspace height, attic hatch location), linear footage of ductwork, whether we’re sealing existing joints or replacing crushed runs first, and whether insulation replacement is bundled. We give one flat price per system, agreed in writing before work starts. No per-vent pricing, no add-ons at the door. You’ll see the number, sign off, and that’s what you pay. Call (361) 326-5060 for a free estimate – we can often ballpark from a brief phone description and photos.
We Also Serve Cities Near Braselton
Our Duct Sealing crews work throughout northeast metro Atlanta, including Braselton and nearby Auburn, Dacula, Suwanee, and Buford. Same written pricing, same 365-Day Done Right Promise, same live-answer scheduling in every market we cover.
Serving Braselton, GA - Our Local Coverage Area
We’re based in the Braselton 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 Braselton
Shared vertical chases in multi-family buildings let one unit’s return leaks bleed into a neighbor’s supply, so pressure problems persist until the full chase is sealed and balanced. Cleaning removes debris but doesn’t fix the pressure dynamics. Call (361) 326-5060 and we’ll test your unit’s leakage against the building stack – estimates are free.
Not if the real problem is crushed flex runs from construction damage, which we find regularly in Chateau Elan and Reunion homes. Sealing fixes joint leaks; it doesn’t restore airflow through a duct flattened to a half-inch gap. We camera-inspect first and tell you which problem you actually have before quoting. Call (361) 326-5060 to schedule.
Leaky return ducts pull unfiltered outside air directly into your system, and Braselton’s March-April pollen counts are among Georgia’s highest. We routinely recover cups of yellow pine pollen from plenums where return leaks bypassed the filter entirely. Sealing those returns stops the infiltration and protects your coils. Call (361) 326-5060 for a leakage test.
Yes – sealing only one side creates pressure imbalances that accelerate leakage on the unsealed side and can backdraft combustion appliances. Our pressure test identifies which side is worse, but we quote and recommend sealing both for a balanced system. Call (361) 326-5060 for an exact assessment of your home.
Shared dryer vent stacks in Braselton’s denser developments create backpressure that can pull conditioned air out of leaky supply ducts if the building envelope isn’t tight. We check Braselton Dryer Vent Cleaning flow and duct leakage together, and we’ll flag if your unit’s sealing needs coordinate with stack maintenance that property management should handle. Call (361) 326-5060 and we’ll sort out what’s your responsibility versus the building’s.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Braselton since 2004 as part of the Garrison Partners family.




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