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.
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AfterFast, Reliable Duct Repair & Sealing Across North Atlanta
Duct repair and sealing in North Atlanta typically costs $280-$650 for most single-zone repairs and $890-$2,400 for whole-system sealing or extensive flex duct replacement in larger two-story homes. Most jobs are scheduled within a week, with written prices delivered before any work begins. Call (470) 495-9370 for a free estimate.
We’re the Duct Repair & Sealing crew at CleanRun, and we’ve been working the attics of Dunwoody, Sandy Springs, and the Roswell Road corridor since 2013. Dispatch runs from our Atlanta office, but our trucks are in these northern suburbs daily. We know the 1987-built two-stories with flex duct routed through 130°F attics, the 1960s ranch homes along Roswell Road with original metal trunk lines, and the specific failure patterns that show up when a home’s ductwork has been cooking in Georgia heat for three decades. That local pattern recognition matters. It means we run the camera inspection knowing what we’re likely to find, and we quote the repair accurately the first time.
Why CleanRun Air Duct Cleaning Atlanta Is North Atlanta’s Preferred Duct Repair & Sealing Company
Our reputation in North Atlanta is built on documentation, not promises. Every job starts with a written price under Haven Standard Clause 1 and ends with a photo record of every duct run, before and after. Homeowners here research before they call, and they stay customers because they can see what was actually done.
We’ve served more than 52,000 homes since 2013, with a strong concentration in the northern metro. Reviews from North Atlanta customers consistently mention the photo record and the upfront written quote as the reasons they chose us over competitors running $79 coupon specials.
Response time to North Atlanta neighborhoods is typically 3-5 business days for standard scheduling, with same-week availability for urgent airflow loss. We do not manufacture urgency. If your upstairs bedroom has no airflow in July, we’ll get there as fast as the schedule allows and tell you exactly when that is when you call.
Our crews know the local housing stock. They recognize the 1980s-90s Sunbelt builds with flex duct at end of life, the pollen loading patterns from the dense pine canopy, and the specific code requirements for duct sealing in unconditioned attics in this climate zone. That knowledge translates to faster diagnosis and quotes that match the actual scope.
Our Duct Repair & Sealing Services in North Atlanta
Duct Sealing with Mastic Sealant
Most North Atlanta homes we inspect leak 20-30% of conditioned air into the attic before it reaches the register. We seal plenum joints, takeoff connections, and boot-to-ceiling gaps with mastic sealant, a fiber-reinforced compound that remains flexible at temperature extremes. In the 130°F attics common above Dunwoody and Sandy Springs two-stories, tape adhesives fail within seasons. Mastic does not. A typical single-zone mastic sealing job in North Atlanta runs $450-$890. Whole-system sealing for a 3,500 sq ft home with multiple trunk lines runs $1,400-$2,400.
Flex Duct Repair and Replacement
This is our most common repair in North Atlanta. The original flex duct in 1978-1999 two-story subdivisions was routed through attics that routinely top 130°F in Georgia summers, so liner sagging, inner-core collapse, and disconnected takeoffs show up at 25-40 years even though the outer jacket still looks intact. Which is why a camera inspection usually finds more repair than cleaning here. A Dunwoody homeowner near the intersection of Chamblee Dunwoody and Mount Vernon called because two upstairs bedrooms wouldn’t cool while the rest of the house ran fine. Our tech ran a camera inspection down the trunk and found a crushed flex run and a disconnected takeoff above the garage, both original to the 1987 build. We reconnected and mastic-sealed the takeoffs, replaced the crushed flex run with insulated duct, and sealed the air handler plenum. The upstairs bedrooms hit their setpoint that same afternoon. Flex duct replacement in North Atlanta typically runs $180-$340 per run, with full-system replacement in large homes reaching $2,800-$4,500.
Metal Duct Repair
Older pockets in Sandy Springs and along the Roswell Road corridor include 1960s ranch homes that may still have original rigid ductwork with decades of accumulated debris and no prior cleaning history. We repair separated longitudinal seams, replace corroded sections, and seal metal-to-metal joints with mastic rather than failing tape. Metal repair in these older North Atlanta homes typically runs $320-$580 for localized work, with full trunk replacement at $1,200-$2,100 depending on accessibility.
Duct Insulation Replacement
North Atlanta’s humid subtropical climate keeps HVAC systems running in cooling mode for roughly six months a year, continuously drawing outside air through filtration that is easily overwhelmed during the region’s extreme spring pollen events. The combination of high summer attic heat and elevated indoor humidity creates conditions favorable for mold colonization inside deteriorating flex duct insulation, a concern that is more acute here than in the drier suburban corridors south of the city. We strip and replace compromised insulation with new R-6 or R-8 flex duct, sealed at every joint. Insulation replacement jobs in North Atlanta typically range $240-$480 per run.
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.
BeforeAfterTrusted Brands We Service in North Atlanta
Our equipment roster includes Rotobrush and Nikro for duct cleaning and inspection, Honeywell media filters and Aprilaire whole-home air cleaners for integrated air quality upgrades, and Guardsman for protective treatments where indicated. We stock common flex duct diameters, takeoff fittings, and mastic supplies on our North Atlanta trucks, so most repairs don’t wait on parts. If your system includes Honeywell or Aprilaire components that need attention during a sealing job, we service them in the same visit rather than scheduling a return trip.
Common Duct Repair & Sealing Problems We See in North Atlanta Homes
- Crushed flex runs in two-story attic systems. The inner wire helix of original flex duct fatigues after 25-40 years of 130°F summer heat, causing the duct to flatten or collapse where it sags between supports. Airflow to upstairs bedrooms drops gradually until one day the register blows nothing but noise.
- Disconnected takeoffs above garages and bonus rooms. Builders in 1980s-90s North Atlanta subdivisions often used minimal mechanical fasteners on takeoff connections. Thermal expansion and vibration loosen these joints until conditioned air dumps straight into the attic. The homeowner feels it as a room that never reaches temperature.
- Pollen-compacted return boots every spring. Technicians working the wooded subdivisions of Dunwoody and Sandy Springs routinely find a compacted yellow-green pine pollen layer coating the inside of return air boots and the first several feet of return duct. A seasonal buildup so consistent and visible that it has become a reliable selling point when showing homeowners the before-condition during spring and early summer jobs. This debris raises static pressure and strains blower motors until the returns are cleaned and sealed.
- Mold in deteriorating flex insulation. Loose takeoffs and unsealed boots along the Roswell Road corridor ranch homes leak conditioned air into the attic, drawing humid Georgia air into the run and feeding mold colonization inside deteriorating flex insulation. The first sign is often a musty smell at startup or visible spotting on the outer jacket.
Pricing for Duct Repair & Sealing in North Atlanta, GA
We publish ranges because Haven Standard Clause 1 requires a written price before any work starts, and that price should not surprise anyone who has read this page.
| Service | Typical Range in North Atlanta |
|---|---|
| Single-zone mastic sealing | $450-$890 |
| Whole-system mastic sealing (large home) | $1,400-$2,400 |
| Flex duct replacement (per run) | $180-$340 |
| Full flex duct replacement (3,500+ sq ft home) | $2,800-$4,500 |
| Metal duct repair (localized) | $320-$580 |
| Metal trunk replacement | $1,200-$2,100 |
| Duct insulation replacement (per run) | $240-$480 |
| Air leak repair (takeoff reconnection, boot seal) | $150-$280 per location |
What moves a job to the higher end: multiple attic access points, extensive disconnection requiring full run replacement rather than spot repair, integrated air quality upgrades like Honeywell or Aprilaire filter systems, or homes with 4+ zones and complex trunk routing. What keeps it lower: single disconnected takeoff, localized seal failure, or straightforward flex run replacement with good attic access. Every estimate is free, delivered in writing, and valid for 30 days. Bring a competitor’s written quote and we’ll provide a free second opinion under the Haven Standard.
We Also Serve Cities Near North Atlanta
Our crews work daily throughout the northern metro. If you’re in North Atlanta or nearby, we cover Atlanta, Decatur, Smyrna, and College Park with the same written pricing and documented photo record on every job. Scheduling is coordinated from our Atlanta office, with routes optimized to keep travel time reasonable for customers across these service areas.
Serving North Atlanta, GA - Our Local Coverage Area
We’re based in the North Atlanta 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 - Duct Repair & Sealing in North Atlanta
Seal after cleaning, always. Running a sealant or mastic application over debris-coated surfaces creates a weak bond that fails within a season. We clean the contact surfaces first, inspect with the camera, then seal. In North Atlanta’s pollen-heavy environment, this sequence is especially important because spring debris layers can hide cracks and separations that only become visible once the duct is clean. Call (470) 495-9370 for an exact quote - estimates are free.
Original flex duct in these homes was routed through attics that hit 130°F, and after 25-40 years the inner wire helix fatigues, the liner sags, and the core collapses. The outer jacket often looks intact from the attic floor, but a camera inspection reveals crushed or disconnected runs killing airflow to upstairs rooms. We find this exact pattern in Dunwoody weekly. Repair typically involves replacing the damaged flex runs and mastic-sealing the takeoffs. Call (470) 495-9370 for an exact quote - estimates are free.
Pine pollen. North Atlanta’s dense pine and oak canopy produces some of the highest spring pollen counts in the United States, and the first several feet of return duct and the return boot collect a compacted yellow-green layer that is unmistakable once you’ve seen it. It’s not mold, but it does restrict airflow, raise static pressure, and strain your blower motor. We remove it during cleaning and seal the boot-to-ceiling gap to reduce future infiltration. Call (470) 495-9370 for an exact quote - estimates are free.
It physically damages it. The 130°F+ temperatures in North Atlanta’s unconditioned attics exceed the long-term temperature rating of original flex duct liners, causing the adhesive bonding the insulation to the inner core to degrade. The wire helix fatigues. The inner core tears and collapses. This is not gradual efficiency loss - it’s structural failure that eventually stops airflow entirely. We replace the damaged sections with current-code flex duct rated for the temperature extremes of Georgia attics. Call (470) 495-9370 for an exact quote - estimates are free.
Camera inspection, every time. We run a lighted camera through every accessible duct run and show you the footage before quoting either service. If we find intact duct with debris buildup, we quote cleaning. If we find crushed flex, disconnected takeoffs, separated seams, or degraded insulation, we quote repair or replacement. In North Atlanta’s 1978-1999 housing stock, we often find both - debris from decades of accumulation and structural damage from attic heat - and we scope each condition separately so you know exactly what you’re paying for. Call (470) 495-9370 for an exact quote - estimates are free.
Ready to stop losing conditioned air to your attic? Call CleanRun at (470) 495-9370 for a free written estimate. We’ll run the camera, show you what we find, and deliver a fixed price before any work starts. Every repair is backed by our 365-Day Done Right Promise and documented with before-and-after photos of your actual ductwork.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving North Atlanta since 2013.