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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After
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AfterFast, Reliable Duct Repair & Sealing Across Atlanta
Most Atlanta homeowners who call us aren’t starting from zero. They’ve already had their ducts cleaned, maybe more than once, and the dust keeps coming back. The real problem is usually leaks: gaps at joints, degraded flex duct, or disconnected runs pulling attic air straight into the system. Duct Repair & Sealing fixes what cleaning alone cannot.
We dispatch crews from our Atlanta office for our Dryer Vent Cleaning in Atlanta and serve homes from Grant Park to Roswell, from 1920s bungalows to 1990s subdivisions. Every visit starts with a written price before any panel comes off, and ends with a documented photo record of every duct run. Call (678) 904-9744 for a free estimate.
Why CleanRun Air Duct Cleaning Sandy Springs Is Atlanta’s Preferred Duct Repair & Sealing Company
We’ve been in Atlanta homes since 2013, and the pattern is consistent: the houses with the worst air quality aren’t the dirtiest. They’re the leakiest. Our crews have documented this in 52,000+ homes, every one with a written price agreed upfront and a photo record delivered afterward.
Atlanta customers find us because they’re done with $79 coupons and shop-vac noise. They want to see what was in their ducts, not just hear about it. The 365-Day Done Right Promise backs every job in writing, not as a policy subject to manager approval. If it’s not right, we make it right.
Our technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. The license number is published on this page. You can verify it. We want you to.
We know Atlanta’s housing stock because we work in it daily. The flex duct sagging in a Gwinnett attic at 150°F. The retrofitted supply run in a Candler Park crawlspace, disconnected at the plenum. The pollen-coated return in Buckhead pulling March air through a gap you can’t see from the vent. Duct Repair & Sealing in Atlanta requires recognizing these patterns, not just owning a truck.
Our Duct Repair & Sealing Services in Atlanta
Duct Sealing
Atlanta’s near-continuous AC season, May through September, keeps system pressure high year-round. Every leak at a joint or seam wastes cooled air into the attic and pulls hot, humid attic air back into the system. We seal with mastic, a brush-applied compound that remains flexible and bonds to metal, flex, and fiberglass board. Unlike tape, which degrades in Atlanta’s attic heat, mastic lasts. A typical whole-system seal in Atlanta runs $850-$1,400 depending on access and linear footage.
Flex Duct Repair
This is where Atlanta’s housing stock shows its age. The 1980s-2000s buildout across Gwinnett, Cobb, and Cherokee counties installed millions of feet of flexible duct in unconditioned attics. Those attics hit 140-160°F in July. The inner plastic liner degrades. Support straps fail. The duct sags into a cupped low spot where condensation pools and mold establishes. In a 1990s Gwinnett County subdivision off Five Forks Trickum Road, our tech found a 25-foot flex duct run that had sagged and partially collapsed at two support points, holding standing condensate and mold against a degraded inner liner. We cut out the cupped section, re-supported the remaining run with new strapping, and sealed every joint with mastic. A camera inspection confirmed no other low spots before we closed up. Flex duct repair in Atlanta typically runs $180-$340 per run, with full replacement at $400-$650 where the liner is too degraded to salvage.
Metal Duct Repair
Older intown homes, and some commercial conversions in Virginia-Highland and Inman Park, have galvanized steel ductwork from original or mid-century HVAC installs. Metal ducts don’t sag, but they rust at seams and can separate at joints from decades of thermal expansion. We repair with custom-fitted patches, re-seal with mastic, and reinforce where vibration has loosened connections. Metal duct repair in Atlanta runs $220-$480 per section, with full replacement rare unless rust-through is extensive.
Duct Insulation
Uninsulated or degraded duct insulation in Atlanta attics is an efficiency disaster. R-4 or R-6 flex duct in a 150°F attic loses 15-25% of cooling capacity before the air reaches the register. We install fresh insulation wraps or replace degraded flex with properly insulated product. Duct insulation work in Atlanta typically runs $600-$1,100 for a standard residential system, depending on linear footage and attic access conditions.
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 Atlanta
Our equipment roster includes Rotobrush for mechanical agitation in duct runs, Nikro for negative-pressure extraction systems, and Abatement Technologies for HEPA containment and air scrubbing during repair work. These are trade-recognized brands customers can look up independently. We don’t invent performance claims beyond manufacturer specifications. For sealing and repair materials, we use Guardsman-grade mastic compounds rated for the temperature swings Atlanta attics deliver. Parts and materials are stocked locally, so most Atlanta repairs don’t wait on shipping.
Common Duct Repair & Sealing Problems We See in Atlanta Homes
- Flex duct sag and condensation pooling in Gwinnett and Cobb attics. The 140-160°F summer temperatures in unconditioned attics degrade plastic liners and cause support straps to fail. Experienced crews bring duct re-support hardware on virtually every job in those ZIP codes.
- Disconnected retrofitted runs in Grant Park and Candler Park bungalows. Ductwork added decades after original construction often has inconsistent connections and limited access points. Disconnected supply runs go undetected until a camera inspection shows cooled air dumping into a crawlspace.
- Mold colonization from continuous condensate activity. Atlanta’s seven-month cooling season keeps evaporator coils wet. Without proper sealing, moisture migrates into joints and promotes microbial growth in supply and return ducts. Cleaning alone won’t stop it from returning.
- Pollen accumulation accelerating liner degradation. The dense urban tree canopy drops visible pine pollen every March-April. That pollen is drawn into return ducts, combines with humidity, and creates abrasive, acidic buildup that speeds flex liner breakdown.
Pricing for Duct Repair & Sealing in Atlanta, GA
We publish ranges because Haven Standard Clause 1 requires a written price before any work starts, every time. No exceptions.
| Service | Typical Atlanta Range |
|---|---|
| Whole-system mastic sealing | $850 - $1,400 |
| Flex duct repair (per run) | $180 - $340 |
| Flex duct replacement (per run) | $400 - $650 |
| Metal duct repair (per section) | $220 - $480 |
| Duct insulation (whole system) | $600 - $1,100 |
| Camera inspection with photo record | $150 - $250 (included free with repair work) |
What moves the number: attic access difficulty, linear footage, number of disconnected or degraded runs, and whether insulation replacement is needed. We deliver the exact price in writing before any work begins. Bring a competitor’s written estimate and we’ll provide a Free Second Opinion, our number next to theirs.
We Also Serve Cities Near Atlanta
Our crews work throughout the metro: Atlanta proper plus Smyrna, Marietta, Decatur, and Roswell. Same written-price standard, same documented photo record, same 365-Day Done Right Promise. Scheduling is coordinated from our Atlanta office.
Serving Atlanta, GA - Our Local Coverage Area
We’re based in the 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 Atlanta
Because your attic hits 140-160°F in summer, and that heat degrades the plastic inner liner of flex duct installed during the 1990s buildout. Support straps fail. The duct sags into a cup. Condensation pools. Mold colonizes. We cut out cupped sections, re-support with new strapping, and seal with mastic rated for those temperatures. Call (678) 904-9744 for a camera inspection and written estimate.
Yes. Craftsman bungalows in Grant Park, Candler Park, and Virginia-Highland were built in the 1920s-1940s without central air. Ductwork was retrofitted decades later, often with inconsistent connections and limited access points. We find disconnected runs, crushed flex in tight crawlspaces, and supply lines that never sealed properly at the plenum. The repair approach is more surgical: camera-first, targeted access, preservation of original structure. Call (678) 904-9744 to schedule.
Atlanta’s pine, oak, and sweet gum canopy produces some of the heaviest pollen loads in the country every March-April. That pollen is drawn into return ducts, and every leak in your system pulls it into the airflow. Sealing eliminates the entry points. Without sealing, you’re filtering pollen that shouldn’t be in the ductwork at all. The camera shows the difference: sealed systems show clean runs; leaky ones show accumulation at every gap. Call (678) 904-9744 for an inspection and written price.
Most leaks are accessible at joints, the plenum, and register boots. We seal those with mastic applied by hand and brush. For leaks inside finished walls, we use camera location to identify the problem and discuss targeted access if needed. We do not tear out insulation or drywall without written authorization after showing you the camera evidence. Haven Standard Clause 1: written price before any panel comes off. Call (678) 904-9744 to see what we find.
A uniformed, background-checked technician arrives at the scheduled time, identified by name. We inspect the system with a camera, show you what we find on a screen, and deliver a written price before any work begins. Repair work includes a documented photo record of every duct run, before and after, delivered as part of your job record. The visit concludes with the 365-Day Done Right Promise in writing. Most Atlanta repairs take 3-5 hours. Call (678) 904-9744 to schedule your free estimate.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Atlanta since 2013.