Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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 Smyrna
Duct sealing in Smyrna typically costs between $1,200 and $3,800 for a full system, with the average home landing around $2,200. That’s a significant number, so let’s explain exactly what you’re paying for and why it matters more in Smyrna than in most Georgia towns. We’re Hollis Air Duct Sandy Springs, and we’ve been sealing ducts across Smyrna long enough to know which neighborhoods fight red clay dust, which ones battle river humidity, and which ones hide construction debris inside brand-new ductwork. Call us at (229) 489-7780 for a written price before anyone touches your system.
Why Hollis Air Duct Sandy Springs Is Smyrna’s Preferred Duct Sealing Company
Smyrna homeowners call us because we do something most duct sealing outfits won’t: we put the price in writing before the work starts, and we stand behind it for 365 days. That’s the Garrison Standard, and it’s not a marketing slogan. It means the number on your estimate is the number you pay, even if the job takes longer than expected. Our technicians arrive in uniform, background-checked, and on time because they work within a system that doesn’t tolerate no-shows or door-step price changes.
Roy Castellanos leads the team, and he’s built the crew around a simple idea: a homeowner should know what the work costs and what it covers before the van pulls into the driveway. That’s why every duct sealing job in Smyrna includes a written scope, a line-item price, and the 365-Day Done Right Promise. If the seal fails within a year, we return at no charge. That includes a free second visit, not a negotiated favor.
We coordinate dispatch and scheduling from our Atlanta office, but the crews serving Smyrna work locally. They know Atlanta Road traffic, they know the 30080 and 30082 zip codes, and they know the difference between a 1960s ranch off Concord Road and a 2015 infill build near the Battery. That local familiarity means faster diagnosis and fewer return trips.
Styles & brands we work with
Duct Repair in Smyrna
Duct Repair in Smyrna homes usually involves sealing or replacing sections of ductwork that have separated, rusted, or been damaged by pests or construction. The most common repair we perform in Smyrna is reconnecting duct boots to the subfloor, especially in newer homes where the mechanical rough-in was rushed. Homeowners in the 1950s-70s ranch and split-level neighborhoods around King Springs Road and South Cobb Drive frequently call us for rusted metal duct sections that have been sweating in crawlspaces for decades.
Repair work in Smyrna typically runs $450 to $1,800 depending on how many runs need attention and whether we’re working in a crawlspace or attic. We use mastic and UL181-rated tape, not duct tape, which dries out and fails within a few years in Georgia heat.
Boot Connections and Floor Registers
A loose boot connection lets air escape under the floor before it ever reaches your living room. We see this constantly in Smyrna’s 2000s-2010s infill homes where framing crews left gaps between the boot and the subfloor. The fix is straightforward: pull the register, seat and fasten the boot, seal the joint with mastic, and re-test airflow.
Crawlspace and Attic Runs
Homes built before 1990 in Smyrna often have uninsulated metal ducts in the crawlspace. Humidity from Georgia summers causes condensation on the duct exterior, which eventually eats through the metal and lets conditioned air escape. We inspect the full run, patch or replace damaged sections, and seal every accessible joint before insulating what’s exposed.
Air Duct Sealing in Smyrna
Air Duct Sealing in Smyrna is the complete process of closing every leak in your duct system so conditioned air goes where it’s supposed to go, not into your attic or crawlspace. There’s no city-wide energy code that forces builders in Cobb County to pressure-test ductwork, so leaks are common. We use mastic, UL181 tape, and Aeroseal-type aerosol sealants where appropriate. Pricing for full-system sealing in Smyrna typically runs $1,200 to $3,800, with larger homes on the west side near the Chattahoochee River falling toward the higher end because of longer duct runs and additional moisture remediation.
Negative Pressure Testing
Before we seal anything, we test. The negative-air method uses a fan to depressurize your duct system while we measure airflow at each register. This tells us exactly how much leakage you have, usually expressed as a percentage of total airflow. A well-sealed system should lose less than 5%. Older Smyrna homes often measure 20-30% leakage before we touch them.
Mastic Application and Joint Sealing
Mastic is a thick, brush-on sealant that hardens into a flexible, airtight coating. You can’t buy the commercial grade we use at a hardware store. We apply it to every accessible joint, seam, boot connection, and plenum takeoff. For joints that flex, we pair mastic with UL181-rated tape, which is designed for HVAC temperatures and doesn’t dry out like ordinary duct tape.
Trusted Brands We Service in Smyrna
We work on all major duct systems and air handlers, and we stock sealing materials compatible with equipment from Rotobrush, Nikro, and Abatement Technologies. If your Smyrna home has a Honeywell or Aprilaire filtration system, we’ll coordinate the sealing work so your filter housing doesn’t leak. Having the right materials on the truck means we’re not making a second trip across town for a part, and you’re not waiting on a backorder. Our Atlanta office keeps inventory specific to what we encounter in Cobb County homes, so turnaround is days, not weeks.
Common Duct Sealing Problems We See in Smyrna Homes
- Construction dust and drywall debris in new ducts. Homes built along Atlanta Road in the last decade often have ducts that were never protected during construction. Drywall sanding dust, sawdust, and even fast-food wrappers end up in the supply runs before you ever move in.
- Unsealed boots leaking red clay dust into the airstream. Georgia red clay is fine enough to infiltrate the smallest gap between a duct boot and the subfloor. We see this in both new construction and older ranches around Spring Road and Hurt Road.
- River-valley humidity causing condensation and mold inside ducts. Homes on the west side of Smyrna near the Chattahoochee River battle moisture that inland homes don’t. Uninsulated ducts sweat in summer, and that damp environment breeds mold inside the ductwork before you ever see it on a wall.
- Asbestos-wrapped duct insulation in mid-century homes. Many 1950s-70s homes in Smyrna still have original ductwork wrapped in asbestos-containing insulation. Sealing these ducts requires abatement protocols first, or the wrap gets disturbed and releases fibers into the air you breathe.
See the difference
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After
Before
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Before
AfterPricing for Duct Sealing in Smyrna, GA
A full-system duct seal in Smyrna runs $1,200 to $3,800. The spread depends on house size, duct accessibility, and whether we’re also cleaning debris or remediating mold before sealing. A 1,500-1,800 square foot ranch typically lands between $1,500 and $2,400. A 3,000+ square foot two-story near the river may run $2,800 to $3,800. What moves the price is access: crawlspace work costs more than attic work because of clearance and moisture. The price we write down is the price you pay, and it includes testing, materials, labor, and the 365-Day Done Right Promise. Call (229) 489-7780 for a free estimate on your specific system.
We Also Serve Cities Near Smyrna
Our crews handle Duct Sealing work throughout the northwest metro, including Roswell, Clarkston, Stone Mountain, and Holly Springs. If you’re just outside Smyrna proper, give us a call. We’ll tell you honestly whether your home falls within our regular service area. For residents in the heart of Cobb County, our Duct Sealing in Smyrna team knows the local housing stock block by block.
Serving Smyrna, GA - Our Local Coverage Area
We’re based in the Smyrna 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 Smyrna
Because most Smyrna builders never seal the ductwork at all. During construction along Atlanta Road, ducts are left open while drywall is sanded and flooring is cut. That debris ends up inside your supply and return runs. Boots are often set but never sealed to the subfloor, which lets attic air and insulation fibers get pulled into the airstream. A new home’s ducts usually leak 15-25% by the time you get the keys. The builder isn’t required to pressure-test duct leakage in Cobb County, so it becomes your problem. Call (229) 489-7780 and we’ll inspect before you move in, while furniture is still out of the way.
Yes, but only with the right protocol. We don’t attempt to seal a duct that has asbestos-wrapped insulation without first assessing the wrap’s condition. If the wrap is intact and in good shape, we can often seal interior joints through the register openings without touching the exterior. If the wrap is damaged or friable, the correct path is abatement first, sealing second. Mastic won’t bond to asbestos wrap. This isn’t DIY territory. Call us at (229) 489-7780 and we’ll tell you what we’re dealing with before any work begins.
River-valley humidity near the Chattahoochee causes condensation on ductwork that isn’t sealed or insulated. When humid air contacts cool duct metal, water forms. That moisture soaks into unsealed joints and degrades mastic before it cures. If there’s mold growing inside the ducts from years of dampness, we have to remediate that first or the sealant won’t stick. Then we seal, and we recommend insulating exposed runs to stop the condensation from coming back. Homes on the west side of Smyrna, off Atlanta Road near the river, benefit most from this approach. Call (229) 489-7780 for a specific assessment.
Because a code inspection checks for equipment installation, not duct leakage. Counties in Georgia don’t require the kind of pressure testing that commercial buildings undergo. The inspector verifies the unit works, the electrical is right, and the venting is safe. Nobody measures how much conditioned air is escaping into your attic. That’s why a new home can pass inspection and still have 20% duct leakage. We’ve tested brand-new Smyrna builds and found boots that were never sealed, joints held together with nothing but gravity, and runs that zigzag without any support. Call (229) 489-7780 and we’ll show you exactly what’s leaking.
Yes, sealing helps significantly. Red clay dust enters your ducts through gaps at boot connections and return plenums. When your system draws return air from a crawlspace or attic, it pulls that fine clay dust in and distributes it through every vent in the house. Sealing those gaps stops the intake. It won’t remove dust already inside your walls or furniture, but it stops the HVAC from constantly circulating new dust. Pair a full seal with a proper duct cleaning, and you’ll see less red film on your baseboards within a month. Call (229) 489-7780 for the full sequence.
Call Hollis Air Duct Sandy Springs for Duct Sealing in Smyrna
We’ve covered the pricing, the process, and the problems specific to Smyrna: red clay dust, river humidity, rushed construction, and asbestos-era ductwork. The next step is a free estimate with a written price. Call (229) 489-7780 and we’ll schedule a time that works for you. Our crew will arrive in uniform, inspect your ducts, and hand you a number that doesn’t move. If the seal doesn’t hold for 365 days, we come back at no charge. That’s the Garrison Standard, and it’s how we’ve been doing business since 2004.
Written by Roy Castellanos, Owner at Hollis Air Duct Sandy Springs.