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 Doraville
Duct sealing in Doraville typically runs $450 – $1,600 depending on how much of your system is leaking and how hard it is to reach. Most jobs take one day, and the difference in room comfort is usually noticeable within 24 hours. If you’re dealing with black specks on bedding, rooms that never heat or cool evenly, or a utility bill that climbs every summer, the ducts are the first place we look. We’re Hollis Air Duct Sandy Springs, serving Doraville homes and apartments with written pricing and a 365-Day Done Right Promise. Call (229) 489-7780 for a straight answer and a free estimate.
Why Hollis Air Duct Sandy Springs Is Doraville’s Preferred Duct Sealing Company
Doraville homes are not like newer subdivisions in the northern suburbs. The housing stock here runs from 1960s brick ranches off Henderson Mill Road to garden-style apartments along Buford Highway, and most of them share the same problem: original ductwork that has never been sealed properly. Our technicians know what a low-pitch attic in Northwoods looks like. We know how tight the chases are in a split-level off Northcrest Road. And we know that a handyman’s duct tape fix on a crushed flex run will fail before the next pollen season.
Every Doraville job starts the same way: a written price before we touch anything. That price does not move at the door, and it covers the work as described, not a teaser bid that expands into a rewrite. Our crews are background-checked, uniformed, and accustomed to working in occupied apartments during tenant turnovers. Roy Castellanos has built this operation around the idea that a customer should never wonder who’s in their crawlspace or what the final bill will be. When you call, a live person answers. When we arrive, it’s inside the window we quoted. When we leave, the site is clean and the work is covered in writing for a full year.
We’re part of the Garrison Partners family, and we run every job under The Garrison Code: arrive inside the quoted window, put the price in writing before any work starts, complete the job by the book, and leave the site clean. That’s not marketing language. It’s the operational standard on every Doraville work order.
Styles & brands we work with
HVAC Duct Sealing in Doraville
HVAC Duct Sealing in Doraville means closing every leak, seam, and disconnected joint in your supply and return duct system so the air your handler pulls and pushes actually reaches the rooms it’s supposed to. In Doraville’s older homes, the job usually involves more than caulk and tape. We find separated flex runs in attic crawlspaces, rusted collars on metal trunk lines, and original fiberglass duct board that has crumbled at the seams and is pulling attic air and insulation into the blower. Sealing those breaches is what stops conditioned air from escaping and attic dust from circulating through the bedrooms.
What Sealing Actually Involves
We seal duct seams and connections with mastic and mesh, applied to NADCA standards, plus metal tape on rigid ducts. For flex runs, we reconnect separated or crushed sections and band them properly at the collars. Where duct board has deteriorated beyond sealing, we replace the run. The goal is a closed system from return grille to supply register, so the pressure your HVAC system was designed for actually exists at the end of every run.
When Doraville Homeowners Need It
High humidity and six months of AC use in Doraville punish ducts. Condensation on cold metal inside a hot attic breeds mold inside duct insulation, and the same moisture makes duct surfaces sticky enough to grab pollen, construction dust, and lint. If one room always feels dead, the air handler sounds like it’s working too hard, or your filters clog faster than they should, leaks are usually the reason. A typical whole-system sealing job in Doraville runs $500 – $1,400 depending on access and how many runs are compromised.
Duct Repair in Doraville
Duct Repair in Doraville is the work required when sealing alone won’t fix the problem: crushed flex runs, disconnected boots, corroded trunk lines, or duct board that has fallen apart. In a 1970s ranch with a low-pitch attic, a disconnected return can pull fiberglass insulation straight into the blower and blow black specks through every supply register. Repair means getting into the chases and crawlspaces, pulling out the failed sections, and rebuilding the run so it holds. Sealing is part of it, but repair is what makes the system whole again.
Crushed and Disconnected Flex Runs
Doraville attics are rarely walkable. When a cable installer, insulation contractor, or repair tech crawls across a truss bay, a flexible duct gets crushed or yanked loose from its collar. Nobody notices until that bedroom stops getting air. We re-route and re-band the run, support it with proper strapping, and seal the connections. Repair on a single flex run in Doraville typically runs $150 – $400.
Crumbling Fiberglass Duct Board
Duct board from the 1960s and 1970s was never built to last fifty years. The resin breaks down, the board delaminates, and the inner liner deteriorates until the air stream is pulling fibers and debris into the rooms. In Doraville, we see this most in the original supply trunks of ranches built before 1980. Replacing a failed duct board run costs roughly $600 – $1,600 depending on length and access. It’s not cheap, but it’s usually the only permanent fix, and it’s precisely where Hollis Air Duct Sandy Springs earns its reputation.
Trusted Brands We Service in Doraville
We stock sealants, mesh, and collars compatible with the equipment already installed in Doraville homes. Across our jobs, we work with components from Rotobrush, Abatement Technologies, and Guardsman because they hold up under the heat and humidity of a Georgia attic. We also install and service filtration upgrades from Aprilaire for homeowners who want better control over what’s moving through their newly sealed ducts. Since we carry common parts on the truck, most Doraville repairs are completed in a single visit rather than requiring a second trip after a parts order.
Common Duct Sealing Problems We See in Doraville Homes
- Crushed flex runs in cramped attic crawlspaces. Doraville’s ranch homes and split-levels from the 1960s and 70s have low-pitch attics where ductwork is squeezed into spaces barely large enough to crawl through. Over the years, anyone moving through those spaces has bent, crushed, or disconnected runs. Rooms stop getting air, and the handler works twice as hard to push conditioned air through the surviving leaks.
- Grease-coated duct interiors along Buford Highway. The apartment complexes and older homes near Buford Highway often share a distinct problem: years of cooking grease that has been pulled into return ducts, coating the interior surfaces. Pollen and construction dust then stick to that grease. In a few seasons, the ducts are effectively sealed shut from the inside, and no amount of cleaning fully restores airflow until the breaches are sealed and the coating is removed.
- Crumbling fiberglass duct board in 1970s ranches. In tracts like Northwoods and neighborhoods off Northcrest Road, the original supply and return trunks are made from fiberglass duct board that has decayed past its service life. The board delaminates, the inner liner flakes, and the blower pulls fibers into the room. Black specks on bedding are the classic sign, and sealing those ducts is the only fix that actually stops the specks.
- Failed duct tape on mid-run seams. Low-pitch attics make mid-run seams nearly impossible to reach, so handymen wrap the joint in duct tape and call it done. Duct tape fails within a season in a hot Georgia attic. The adhesive dries, the tape peels, and the leak returns. Proper mastic and mesh sealing holds.
See the difference
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AfterPricing for Duct Sealing in Doraville, GA
Whole-system duct sealing in Doraville runs $450 – $1,600. A single-room repair, like one disconnected flex run or one leaking boot, usually lands between $150 and $400. The biggest cost driver is access: a 1970s low-pitch attic with ductwork buried under insulation takes longer than an unfinished basement with open joists. Older homes with original duct board often need more sealing than newer construction because the board itself has failed, not just the seams. We give you the full written price before any work starts, and that number is exactly what you pay. Call (229) 489-7780 for a free estimate on your specific system.
We Also Serve Cities Near Doraville
We work regularly in Duct Sealing projects across the entire northern metro area. If you’re in Sandy Springs, Holly Springs, North Atlanta, or Stone Mountain, our crews can reach you with the same written pricing and 365-Day Done Right Promise we bring to every Doraville job. Scheduling is coordinated from our metro Atlanta office, and each crew arrives uniformed and background-checked. For Doraville homeowners, response is typically within two business days. Call to confirm availability in your neighborhood.
Serving Doraville, GA - Our Local Coverage Area
We’re based in the Doraville 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 Doraville
Black specks on bedding in a 1970s Doraville ranch are almost always from decaying fiberglass duct board pulled into the air stream and blown through the supply registers. The original duct board in those homes has a black or gray inner liner that disintegrates over time, and once it starts, cleaning alone won’t stop it. The fix is sealing or replacing the failed sections so the fibers stop entering the air stream. Call (229) 489-7780 and we’ll camera-inspect the runs to confirm the source before quoting anything.
Because most fix-and-run crews use duct tape instead of mastic and mesh, and duct tape fails in one hot Georgia attic season. In Doraville’s apartment complexes along Buford Highway where attic temps regularly exceed 130°F, the adhesive dries out and peels within months, opening the same leaks. Proper sealing with mastic and mesh, done to NADCA standards, holds for the life of the duct. We’ve done tenant-turnover work in Doraville complexes and seen handyman tape jobs fail before the next lease cycle. Our sealing work is covered in writing for 365 days, including a free second visit if it fails.
Yes, in nearly all cases. Low-pitch attic chases in Doraville ranches are tight, but they’re usually accessible from the attic side, not through drywall. We use long-reach mastic brushes, mesh wraps, and collars that let us work in crawlspaces most crews won’t enter. Every once in a while, a chase is so tight that opening a small access panel is the only practical route, but that’s the exception, not the rule. We’ll tell you the truth after looking at your specific chase access, and the written price will reflect what’s actually required.
If the ducts were cleaned but not sealed, the cleaning did nothing to fix the leaks. A loud air handler means the system is pulling air through gaps it shouldn’t, often from a disconnected return or a crushed supply run. A bedroom that barely gets air means the run serving that room is broken or blocked. In Doraville homes old enough to have gone through several tenant cycles, disconnected flex runs are common because cleaners and repair crews move around the attic and pull things loose. The real fix is a camera inspection followed by repair and sealing, not another cleaning. Call (229) 489-7780 and we’ll show you what’s actually happening in your ducts.
Sometimes, and sometimes it’s a moisture problem. When ducts leak, the return side pulls attic air, which in Doraville’s humid climate is often muggy and can smell like damp insulation. The supply side leaks push conditioned air into the attic, where it condenses and fosters mold growth inside the duct insulation. The smell you notice at startup is often that moisture-laden air being pushed back through. Sealing the leaks stops the attic air exchange, and if the insulation is saturated, we can replace the affected sections. Since garden-style apartments along Buford Highway see this pattern regularly, we’ve developed a standard inspection process that pinpoints the exact source before we quote.
How the 365-Day Done Right Promise Works in Doraville
Every duct sealing and repair job we complete in Doraville is covered by the 365-Day Done Right Promise. That means if the seal fails, if a run we repaired comes loose, or if the problem we fixed reappears within one year, we return and make it right at no charge, including a free second visit. The Promise is written on every work order, not spoken as a selling line. Roy Castellanos runs this business on the principle that a warranty only means something if it’s in writing and the company is actually around to honor it. We’ve been in business since 2004, and we intend to be here long after your first year of coverage runs out. Call (229) 489-7780 for a free estimate and a straight answer on what your Doraville ducts need.
Written by Roy Castellanos, Owner at Hollis Air Duct Sandy Springs, serving Doraville since 2004.