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 Air Duct Cleaning Across Dunwoody
Air duct cleaning in Dunwoody, GA typically costs between $450 and $900 for a full single-family home system, depending on the number of returns, the condition of the ductwork, and whether repairs are needed. For most Dunwoody homes built between 1970 and 2000, we recommend a full system cleaning with camera inspection, since decades of accumulated dust, pollen, and debris have likely never been removed. At Hollis Air Duct Sandy Springs, we serve Dunwoody with written pricing before any work starts, background-checked technicians, and a 365-Day Done Right Promise on every job. Call (229) 489-7780 for a free estimate, and you’ll speak with a live person, not a voicemail queue.
We know Dunwoody’s homes because we work in them every week, from Dunwoody North to Kingsley to the neighborhoods off Mount Vernon Road. The attics here run hot, the crawlspaces stay humid, and the original ductwork in most of these houses was never designed to go 30 or 40 years without attention. That’s exactly what we find when we camera-inspect a system that has never been cleaned: crushed flex runs, separated joints, and years of Georgia pollen packed into the returns. Local crews serve Dunwoody directly, with scheduling coordinated from our Atlanta office.
Key Takeaways for Dunwoody Homeowners
- Full-system air duct cleaning in Dunwoody runs $450 to $900 for most single-family homes.
- Homes built in the 1970s through 1990s often have collapsed flex duct in attics and crawlspaces, a problem that simple vacuum cleaning can’t fix.
- The 365-Day Done Right Promise covers every job in writing for a full year, including a free second visit if work fails.
- Camera inspection before and after cleaning is standard on every Dunwoody job we perform.
Styles & brands we work with
Why Hollis Air Duct Sandy Springs Is Dunwoody’s Preferred Air Duct Cleaning Company
We approach every Dunwoody job the same way the Garrison Code lays out: arrive inside the quoted window, put the price in writing before touching a register, complete the work by the book, and leave the site clean. That standard matters in a trade with a reputation for no-shows and prices that jump at the door. You know who is walking into your home before they arrive because every technician is background-checked and uniformed.
Dunwoody homeowners ask us to solve problems other companies don’t find. In Dunwoody, our team regularly uncovers crushed flex duct hidden under a foot of blown-in attic insulation, original 1970s duct runs that were never sealed properly, and return plenums packed with years of tree debris from the neighborhood’s mature canopy. Fixing those problems requires more than a vacuum hose through a register. It requires camera inspection, source removal agitation, and duct sealing mastic applied where the real leaks are. That is the work we do, on time and in writing.
Roy Castellanos leads the team that serves Dunwoody. We answer the phone 24 hours a day, 7 days a week, with a live person, and we show up when we said we would. That is not a slogan. It is how the business has operated since 2004 as part of the Garrison Partners family, and it is what Dunwoody homeowners tell us they value most after years of dealing with crews that disappeared after the job went sideways.
Air Duct Repair in Dunwoody
Air Duct Repair in Dunwoody means more than patching a visible tear. In the 1970s through 1990s slab-foundation homes that dominate this city, repair work usually targets what the camera finds: disconnected flex runs in the attic, crushed return ducts under insulation, and separated joints where conditioned air leaks into crawlspaces instead of reaching the bedroom. A typical air duct repair job in Dunwoody runs $150 to $450 per repaired run, and we quote the full price before any work begins.
Collapsed Flex Duct Replacement
Flex duct installed 30 or 40 years ago was not built for Georgia attic temperatures that climb past 140°F every summer. The outer jacket deteriorates, the inner liner separates, and the duct collapses under the weight of blown-in insulation. In Dunwoody North, our tech found a 1980s split-level where the original flex run to the master bedroom had completely flattened under a foot of insulation. We mapped the crushed section with a camera, removed the failed duct, and resealed the remaining runs with mastic before rebalancing supply and return airflow. That room finally held its temperature.
Duct Sealing with Mastic
Old duct joints leak. We seal them with mastic, a brush-on compound that hardens into a permanent air barrier, not with tape that dries and peels within a few Georgia summers. Sealing costs $250 to $600 for a typical single-system home in Dunwoody, depending on how many joints and plenum connections need attention. Sealing often cuts the dust load in the house immediately because the system stops pulling crawlspace air into the living space.
Ductwork Cleaning in Dunwoody
Ductwork Cleaning in Dunwoody means removing what has accumulated inside the full run of supply and return ducts over decades, not just vacuuming out what is reachable from a single register. We use a Rotobrush rotary brush system for source removal, paired with a Nikro negative-air machine that keeps everything we dislodge from re-entering your living space. A complete ductwork cleaning in a Dunwoody home runs $450 to $900, and we include a camera inspection before and after so you can see what was actually removed.
Source Removal vs. Vacuum-Only
Negative pressure alone will not remove the film that Georgia humidity and pollen have cemented to the interior walls of your ducts. Source removal means we agitate that adhered debris with a rotating brush while the negative-air unit captures it, followed by a full camera pass to confirm the duct walls are clean. This is the difference between a cosmetic register cleaning and an actual Air Duct Cleaning job, and it is the only method we use on every Dunwoody home we service.
Air Handler and Blower Inspection
Dunwoody humidity concentrates moisture inside the air handler, which sits in the unconditioned attic or crawlspace all summer. Any cleaning that skips the blower motor and evaporator coil leaves the most likely mold source untouched. We inspect and clean accessible air handler surfaces on every full-system job, and we document what we find. Skipping that step is common in this trade, and it is a big reason why some Dunwoody homeowners pay for cleaning and see no improvement.
Trusted Brands We Service in Dunwoody
We install and service filtration products from Honeywell and Aprilaire in Dunwoody homes, and our air cleaning equipment includes professional-grade systems from Nikro and Abatement Technologies. For Dunwoody customers, we keep common filter replacement sizes and sealing materials stocked and ready, so a repair or replacement does not require a second visit weeks later. Whether your system uses a standard 1-inch filter or a media cabinet from Aprilaire, we can specify and install the correct filtration for your ductwork and air handler.
See the difference
Before
After
Before
After
Before
AfterCommon Air Duct Cleaning Problems We See in Dunwoody Homes
- Crushed flex duct in attics: Dunwoody’s slab-foundation homes often route ductwork through unconditioned attics, where summer temperatures above 140°F and the weight of blown-in insulation flatten original flex runs. Airflow to distant rooms drops off until the run is replaced or re-supported.
- Humidity-fed mold on air handler surfaces: Georgia’s hot, humid summers drive condensation inside air handlers installed in attics and crawlspaces. We regularly find visible microbial growth on blower housings and coil frames during Dunwoody cleanings.
- Tree debris in crawlspace returns: The mature oak and pine canopy across Dunwoody sheds constantly, and return ducts in crawlspaces with even small openings pull leaves, pine straw, and pollen into the system. That organic load becomes a food source for mold and a constant filter killer.
- Disconnected or leaking duct joints: Original 1970s and 1980s metal and flex connections were fastened and taped with materials never meant for decades of thermal cycling. Separated joints pull dusty crawlspace air and humidity into the supply stream and waste conditioned air.
Pricing for Air Duct Cleaning in Dunwoody, GA
A full system cleaning for a single-family Dunwoody home runs $450 to $900. That includes all supply and return ducts, the air handler inspection, and camera documentation before and after. If we find crushed flex runs or failed joints during the camera pass, we quote the repair separately, typically $150 to $450 per affected run, before any repair work begins. Duct sealing with mastic for a standard system runs $250 to $600. The price we write down before we start is the price you pay, not a teaser that grows once the van is in the drive. Call (229) 489-7780 for a free estimate on your Dunwoody home, and we will walk you through what your system actually needs.
We Also Serve Cities Near Dunwoody
Our crews cover the surrounding north Atlanta area, including Sandy Springs, Holly Springs, North Atlanta, and Stone Mountain. If you live near Dunwoody, call us and we’ll confirm scheduling for your address. The same written pricing and 365-Day Done Right Promise apply throughout the area.
Serving Dunwoody, GA - Our Local Coverage Area
We’re based in the Dunwoody 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 Air Duct Cleaning in Dunwoody
Flex duct from the 1980s was not manufactured to withstand 30-plus years of Georgia attic heat, which reaches above 140°F in summer. The inner liner separates from the outer jacket, and the duct loses its structural shape, especially under the weight of blown-in insulation. In Dunwoody’s slab-foundation homes, most supply runs pass through the attic, so collapsed flex duct shows up as rooms that never hold temperature. The fix is removal and replacement of the failed run, typically $150 to $450 per run. Call (229) 489-7780 and we’ll camera-map your attic runs to see if this is your problem.
Yes, surface mold and biofilm on the interior walls of accessible ducts can be removed with source removal cleaning, but the real fix in a Dunwoody crawlspace is identifying why the mold is there: humidity, poor drainage, or a separated duct pulling damp outside air. We clean the ducts and seal the leaks, and we recommend filtration options from Aprilaire or Honeywell to manage air quality afterward. If the mold has penetrated insulation inside the duct, that section should be replaced, not cleaned.
Source removal uses a rotating brush inside the duct to physically dislodge the adhered dust, pollen biofilm, and debris that a vacuum alone cannot move, while a negative-air machine captures the material so it does not blow back into your home. Vacuuming through registers only removes loose debris near the openings and leaves the duct walls coated with years of accumulated material. We use a Rotobrush rotary brush system with Nikro negative-air equipment on every Dunwoody job, and we show you the before-and-after camera footage.
Dunwoody’s heavy tree canopy means a constant supply of pollen, pine straw, and leaf debris that works its way into return ducts through crawlspace openings and exterior penetrations. When the system runs, that organic material settles inside the ductwork, and in Georgia humidity it becomes a substrate for mold and microbial growth. Homes without return duct filtration or with separated joints pull in more of it every season. Cleaning removes the buildup, and sealing the return system keeps it out.
Yes, every full-system cleaning includes an inspection of accessible air handler surfaces, including the blower housing, motor, and coil frame. In Dunwoody’s humid climate, the air handler in an unconditioned attic or crawlspace is the most common place for mold and microbial accumulation, and cleaning ducts without touching that surface leaves the source of the problem in place. We document what we find with camera footage and quote repairs in writing before proceeding. Call (229) 489-7780 to schedule a complete system inspection and cleaning, and reference the EPA’s Indoor Air Quality guidance for more on duct cleaning and home air quality. For dryer vent maintenance facts, see the U.S. Fire Administration’s dryer vent safety page.
Call Hollis Air Duct Sandy Springs for Dunwoody Air Duct Cleaning
If your Dunwoody home still has its original 1970s, 1980s, or 1990s ductwork and has never had a full system cleaning, there is a good chance you are breathing air that has passed through decades of dust, pollen, and potentially mold. The fix starts with a camera inspection. We show you what is inside your ducts, we quote every repair in writing before we touch a register, and we back the whole job with the 365-Day Done Right Promise. If it is not done right, we come back and make it right, at no charge.
Call (229) 489-7780 today for a free estimate from Roy Castellanos and the team at Hollis Air Duct Sandy Springs. A live person answers, and we’ll set an arrival window we actually keep.
Written by Roy Castellanos, Owner at Hollis Air Duct Sandy Springs, serving Dunwoody and the surrounding north Atlanta area since 2004.