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 Scottdale
We seal ducts in Scottdale homes from the original 1950s ranch neighborhoods off North Clarendon Avenue to the newer townhome clusters near the industrial parks. Our crews know the area’s mix of aging galvanized steel ductwork and modern flex-duct systems, and we carry the right materials for both. Dispatch and scheduling are coordinated from our Atlanta office, but the technicians who arrive at your Scottdale door are local to this market, not driving in from out of county. Most Scottdale appointments are scheduled within a few business days, and you’ll get a written price before we touch anything. Call us at (361) 326-5060 to book.
Why Hollis Air Duct Cleaning Is Scottdale’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our reputation in Scottdale has been built on showing up inside the window, pricing in writing, and leaving the site clean. Scottdale homeowners aren’t looking for the lowest teaser quote; they’re looking for the quote that doesn’t change once the van is in the driveway.
Our technicians are background-checked and uniformed, and they follow The Garrison Code on every job: arrive inside the quoted window, price in writing, complete the work by the book, and leave the site clean. That discipline matters in Scottdale, where many homes sit on larger rural parcels with outbuilding systems that require extra attention.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to schedule.
Every repair we perform in Scottdale is backed by our 365-Day Done Right Promise. If the work fails within a year, we return and make it right at no charge, including a free second visit. That promise is written down on every job, not implied.
Air Duct Sealing in Scottdale
Air Duct Sealing in Scottdale addresses a problem most homeowners don’t know they have: conditioned air escaping through gaps, seams, and failed joints before it ever reaches your rooms. In Scottdale’s climate, where HVAC systems run from March through October, even a 15% leak rate can add hundreds to your annual energy bill and pull unfiltered attic or crawlspace air into your living space.
We use professional-grade equipment to pressurize the system, locate leaks, and seal them with mastic and reinforced mesh. The process takes 2 – 4 hours for a typical Scottdale ranch home and is usually scheduled as a standalone service or paired with cleaning.
When Sealing Beats Replacement
Many Scottdale homes built between 1950 and 1970 still carry original galvanized ductwork that is structurally sound but leaking at every joint. Replacement runs $4,000 – $8,000. Sealing restores performance for a fraction of that cost and extends the system’s useful life another decade or more.
What the Process Looks Like
We start with a camera inspection to map leak locations, then apply Guardsman mastic to seams and elbows, reinforcing with Honeywell mesh at stress points. The system is re-pressurized and tested before we leave. You’ll see before-and-after photos of your own ducts.
Duct Sealing Services in Scottdale
Duct Sealing Services in Scottdale cover more than the main trunk lines. We seal supply and return ducts, repair disconnected flex runs, and address outbuilding systems on rural parcels that many companies ignore. Our Duct Sealing team carries rotary brush systems from Rotobrush and negative-air machines from Nikro to handle both the cleaning and sealing phases without scheduling multiple vendors.
A typical sealing job in Scottdale runs $450 – $950 for a whole-house system, depending on duct accessibility, the extent of leakage found during testing, and whether outbuilding lines need attention. We do not price per vent. One flat price per system, agreed before work starts.
Outbuilding and Workshop Systems
Scottdale’s larger rural parcels often have detached workshops or garages with separate air handlers that share return air with the main house. These systems collect wood-heat soot and construction dust, then recirculate it indoors. We seal these lines as part of a whole-property approach.

New Construction and Rebuilds
Tear-down rebuilds and townhome developments in Scottdale use modern flex-duct that gets crushed or disconnected during rough-in. We find and seal these hidden bypass leaks before they pull in South River corridor mold spores and pollen for years.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Scottdale
We stock sealing materials and filtration products from Honeywell, Aprilaire, and Guardsman, and we carry Rotobrush rotary brush systems and Nikro negative-air machines on every Scottdale truck. That means no waiting on parts shipped from out of state. If your system needs a specific Honeywell mesh reinforcement or Guardsman mastic formulation, we likely have it in the van. For Scottdale’s mix of original galvanized duct and new flex-duct, having the right material on hand matters. The wrong sealant on galvanized steel will crack within two seasons; the wrong approach on flex-duct will crush it further. Our technicians know which product goes where because they’ve worked on both in this market.
Common Duct Sealing Problems We See in Scottdale Homes
- Original galvanized joints failing at seams and elbows. The 1950s – 1970s ranch homes that make up most of Scottdale’s housing stock were built with duct joints sealed by tape that has long since dried and peeled. These gaps draw in unconditioned attic air and, in airport-adjacent neighborhoods, ultrafine jet exhaust particulates that standard filters won’t catch.
- Gray-black ultrafine soot coating duct walls. Homes within a mile of Hartsfield-Jackson show a distinct particulate that isn’t typical household dust. Standard leak tests miss the micro-gaps this soot slips through. We identify it with camera inspection and seal with mastic rated for industrial-grade particulate loading.
- Flex-duct crushed or disconnected in newer townhomes. Scottdale’s tear-down rebuilds often have flex-duct that was poorly supported during installation. The sag creates bypass leaks that pull in pollen and red clay dust from unpaved construction sites, especially during our long spring season.
- Outbuilding systems recirculating wood-heat soot. Rural Scottdale properties with detached workshops or wood-heated outbuildings often have shared return air. When the outbuilding system isn’t sealed and filtered, smoke and dust migrate into the main house every time the air handler cycles.
Pricing for Duct Sealing in Scottdale, GA
Duct sealing in Scottdale typically costs $450 – $950 for a whole-house system. Smaller ranch homes with accessible crawlspaces fall at the lower end. Homes with outbuilding lines, extensive galvanized joint failure, or hard-to-reach attic ductwork run higher. We do not quote per-vent prices or teaser rates that balloon once we’re inside. The price is written down before any work starts, and it does not move at the door.
What affects your specific price: the number of duct runs, accessibility (crawlspace vs. attic vs. finished basement), whether camera inspection reveals extensive joint failure, and whether outbuilding systems need sealing. We bring professional-grade equipment from Rotobrush and Nikro to every job, and every sealing project includes before-and-after photos of your own ducts so you can see the work was done.
Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Scottdale
Our crews work throughout DeKalb County and beyond, including Scottdale neighbors in Clarkston, Decatur, Stone Mountain, and Tucker. Each community has its own ductwork patterns and climate loads, and we adjust our approach accordingly. Decatur’s older Victorian-era homes present different sealing challenges than Scottdale’s ranch stock, and Stone Mountain’s granite-dust environment requires different filtration recommendations. Wherever you are in the area, the same Garrison Standard applies: written price, written guarantee, work done by the book.
Serving Scottdale, GA - Our Local Coverage Area
We’re based in the Scottdale 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 Scottdale
Every 5 – 7 years for most Scottdale properties, but homes on unpaved roads or with active construction nearby should test every 3 – 4 years. Red clay dust and ultrafine particulates from airport traffic accelerate joint degradation in galvanized systems. Call (361) 326-5060 and we’ll assess your specific conditions.
Scottdale’s position directly under the Hartsfield-Jackson flight path exposes homes to jet exhaust particulates that neighboring Decatur and Clarkston don’t see at the same concentration. This ultrafine soot penetrates standard filters and accumulates on duct walls, especially in original galvanized systems with leaky joints. Camera inspection identifies it, and Guardsman mastic with Honeywell mesh reinforcement seals against it.
Yes, when the outbuilding system is included in the sealing scope. Many Scottdale rural properties have shared return air between main house and workshop; sealing those lines and upgrading filtration stops recirculation. We address outbuilding systems as part of our whole-property approach, not as an afterthought.
MERV 11 – 13 for most Scottdale homes, given the pollen load and airport particulates. Higher isn’t always better; MERV 16 can restrict airflow in older systems. After sealing, we’ll recommend the right balance for your specific equipment and local conditions.
We strongly recommend it. Original 1950s – 1970s galvanized ductwork in Scottdale often hides joint failure and soot accumulation that visual inspection from a register can’t reveal. The camera shows you exactly what we’re sealing and provides the before-and-after documentation that backs our 365-Day Done Right Promise.
We were called to a 1960s brick ranch off North Clarendon Avenue where the homeowner saw yellow-green dust clouds from the registers every time the air handler kicked on after April’s pollen peak. Using a camera inspection, we found failing original duct joints coated in gray-black ultrafine soot and red clay dust from nearby unpaved construction sites. After sealing the supply and return ducts with Guardsman mastic and reinforcing with Honeywell mesh, we also cleaned the outbuilding system that serves a detached workshop – something we see often on Scottdale’s larger rural parcels.
Scottdale’s position directly under the Hartsfield-Jackson flight path and its 1950s-70s ranch homes with original galvanized ductwork mean sealing failures here often show a distinct gray-black ultrafine soot on duct walls – not typical household dust – that standard leak tests miss. This airport fallout plus industrial dust is a combination no neighboring city like Decatur or Clarkston faces. Technicians working in Scottdale need to know what they’re looking at: that gray-black film isn’t mold, and it isn’t ordinary dust. It’s a signature particulate that requires specific sealing materials and a camera to locate the micro-gaps it’s slipping through. Generic duct sealing that doesn’t account for this will fail within a season or two as the soot works its way back through underspecified sealant.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Scottdale since 2004.




Before
After
Before
After
Before
After