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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Repair & Sealing Across Atlanta
Duct repair and sealing in Atlanta typically costs $280-$680 for most single-family homes, with full system resealing and flex duct replacement running $850-$1,900 depending on accessibility and the extent of deterioration. Our crews dispatch from our Atlanta office and carry mastic sealant, flex duct, and metal fabrication equipment on every truck, so most jobs are completed in a single visit without ordering parts. Call (470) 516-9337 for a written estimate before any work begins.
We’ve worked in Atlanta’s duct systems since 2013, from Grant Park bungalows to Alpharetta tract homes, and the problems we find here don’t match what you’d see in dryer climates or cities with newer housing stock. Atlanta’s combination of extreme attic heat, explosive pollen loads, and two distinct eras of problem ductwork - 1920s-1940s retrofit installations and 1990s-2000s builder-grade flex runs - means duct repair here is almost always a sealing and pressure-balancing job, not simply swapping failed parts.
Why CleanRun Air Duct Cleaning Marietta Is Atlanta’s Preferred Duct Repair & Sealing Company
Our Duct Repair & Sealing team has documented every job with before-and-after photos since our first Atlanta-area visit in 2013. That record now covers more than 52,000 homes, each with a written price agreed before work started and a 365-Day Done Right Promise backed in writing on every invoice.
Atlanta customers find us because they’ve already received a vague quote or a $79 coupon that ballooned once the truck arrived. We don’t operate that way. Haven Standard Clause 1 requires a written, itemized price before any panel comes off - no exceptions, no “call for pricing,” no per-vent bait-and-switch. Our technicians are background-checked, uniformed, and identified by name before arrival, operating under Haven Standard Clause 3: Verified Crews.
We coordinate dispatch and scheduling from our Atlanta office, which means crews carrying Rotobrush and Abatement Technologies equipment can reach intown neighborhoods like Virginia-Highland, Candler Park, and Inman Park without the logistics delays that plague companies routing from outer metros. The equipment roster also includes Nikro negative-pressure systems and Guardsman fabrication tools - brands customers can verify independently before agreeing to any scope of work.
Our Duct Repair & Sealing Services in Atlanta
Mastic Sealant Application
In Atlanta’s humidity, tape alone fails. We apply mastic sealant - a thick, fiber-reinforced compound that remains flexible after curing - to every joint, collar, and seam in the duct system. This matters especially in 1920s-1940s bungalows in Grant Park, East Atlanta, and Kirkwood, where original sheet-metal trunks were never sealed at installation and retrofit central air was grafted onto returns that were never designed for it. The mastic creates a permanent airtight bond that tape cannot achieve in Atlanta’s temperature swings and sustained humidity.
Air Leak Repair
Air leak repair in Atlanta homes usually starts with a pressure test to locate the loss. In 1990s and 2000s suburban builds across Gwinnett, Cherokee, and Forsyth counties, we routinely find attic flex runs that have separated at joints after years of 130-140°F summer heat - pulling unfiltered attic air, fiberglass insulation particles, and Georgia red clay dust directly into supply ducts. The camera shows a distinctive rusty-orange coating on interior duct surfaces that signals long-term unfiltered air pull. We repair the disconnect, seal the joint with mastic and mesh, and pressure-test to confirm the system is pulling only through the filter.
Flex Duct Repair
Flex duct in Atlanta’s unconditioned attics degrades faster than in milder climates. The inner liner cracks, the insulation compresses, and the wire helix corrodes where condensation collects. Our flex duct repair replaces damaged runs with properly sized, insulated flex duct supported at correct intervals - not draped across trusses the way builder crews often left them. In intown neighborhoods like Little Five Points and Cabbagetown, where access is tight and attics are shallow, we fabricate custom transitions rather than forcing standard fittings into spaces they don’t fit.
Metal Duct Repair
Original galvanized steel ductwork in Atlanta’s older homes often suffers from corrosion at seams and collar connections, or from previous DIY repairs that used improper materials. We fabricate replacement sections on-site using professional-grade tools, seal with mastic rather than failing tape products, and insulate where the metal passes through unconditioned spaces. For homes near Piedmont Park or along Ponce de Leon Avenue with historic preservation considerations, we document existing conditions photographically before altering any visible elements.
Duct Insulation
Where Atlanta’s humidity causes condensation on cold duct exteriors - particularly where supply lines cross hot attics or vented crawl spaces - we install closed-cell insulation with a proper vapor barrier. Without this, exterior mold colonizes the duct surface and eventually migrates into seams, contaminating the airstream. The insulation also reduces thermal loss, which in Atlanta’s climate can mean the difference between a system that maintains setpoint and one that runs continuously without catching up.
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.
BeforeAfterTrusted Brands We Service in Atlanta
Our trucks carry professional-grade equipment from Abatement Technologies, Rotobrush, and Guardsman - brands recognized in the HVAC restoration trade for durability and documented performance. We don’t use consumer-grade shop vacuums or unbranded attachments. Atlanta customers can look up every piece of equipment we name, and we photograph it in use as part of the standard Documented Photo Record delivered with every job. Parts and materials are stocked locally for common Atlanta system configurations, so most repairs don’t wait on shipping.
Common Duct Repair & Sealing Problems We See in Atlanta Homes
- Detached flex runs in suburban attics. In Alpharetta, Smyrna, and Stockbridge tract homes built during the 1990s boom, flex duct joints taped rather than mastic-sealed have separated after years of extreme attic heat. The system bypasses the filter entirely, circulating attic debris until the homeowner notices dust volume increasing or registers blowing weakly.
- Undersized return chases in bungalow retrofits. Grant Park and Kirkwood homes built before central air often share a single narrow return chase that starves the air handler. Sealing supply leaks without addressing the return restriction leaves the blower motor short-cycling on high static pressure - a problem that worsens until the motor fails or the heat exchanger cracks.
- Exterior mold from condensation on uninsulated metal. Atlanta’s humidity produces cold-duct condensation in summer that feeds mold growth on duct exteriors. The mold eventually finds gaps at seams and collars, establishing colonies inside the duct where negative pressure pulls spores into living spaces.
- Lint accumulation in shared condo and apartment stacks. Midtown and Buckhead high-rises route dryer vents and HVAC duct runs through common chases. When one unit’s registers are inspected without examining the shared stack, lint buildup that restricts airflow across multiple units goes undetected until a fire hazard develops or multiple residents report weak exhaust.
Pricing for Duct Repair & Sealing in Atlanta, GA
| Service | Typical Range in Atlanta |
|---|---|
| Mastic sealant resealing (single system) | $280-$450 |
| Flex duct repair / replacement (per run) | $180-$340 |
| Metal duct fabrication and repair | $260-$520 |
| Full system resealing with flex replacement | $850-$1,900 |
| Duct insulation (per linear foot) | $8-$14 |
These ranges reflect Atlanta’s market conditions: labor rates, equipment access challenges in dense intown neighborhoods, and the prevalence of two distinct housing stocks with different repair profiles. A 1940s bungalow in Candler Park with original unsealed metal and a single undersized return requires a different scope than a 2005 Alpharetta home with failed flex runs in a spacious attic. Every estimate is written and itemized before work begins - Haven Standard Clause 1 - and our Free Second Opinion policy means you can bring any competitor’s written quote; we’ll put our number beside it with no obligation. Call (470) 516-9337 to schedule.
We Also Serve Cities Near Atlanta
Our Atlanta crews regularly work in Smyrna, Marietta, Decatur, and Roswell, carrying the same equipment standards and documentation requirements to every job. Scheduling is coordinated from our Atlanta office to minimize transit time and keep appointment windows reliable.
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
These homes were built before central air, so retrofit systems often share a single undersized return chase and original sheet-metal trunks that were never sealed with mastic. Cleaning removes debris but cannot fix the pressure imbalance or unsealed joints that allow attic air infiltration. Duct repair recreates proper plenum connections and seals the return path so the system operates as designed. Call (470) 516-9337 for a camera inspection and written scope.
Atlanta’s loblolly pines, oaks, and sweetgums produce pollen volumes that rank among the highest in North America, coating duct interiors each spring. Where ducts are already leaking, that pollen load enters continuously rather than only when doors and windows are open. Sealing eliminates this bypass, and in humid conditions where pollen substrate supports mold growth, proper sealing combined with negative-pressure extraction removes both the particulate and biological threat. The repair decision should precede any repeated cleaning schedule.
Yes, but it requires inspecting the common chase, not just individual unit registers. We use camera equipment to examine shared stacks for lint accumulation that restricts airflow across multiple units and creates fire hazards. Where accessible, we clean and seal the chase, then document conditions for the building’s records. Scheduling in dense Midtown buildings requires coordinating building access and parking - our Atlanta office handles this directly with your management.
It accelerates adhesive failure at taped joints, causes the inner liner to become brittle, and can sag unsupported runs until they detach entirely. The system then pulls 130°F unfiltered attic air - carrying fiberglass, red Georgia clay dust, and pollen - directly into supply ducts. We replace failed runs with properly supported flex duct and seal all joints with mastic, which survives temperature cycling that tape cannot.
Yes. For intown neighborhoods with restricted street parking or multi-unit buildings with loading dock requirements, we coordinate access through our Atlanta office when scheduling. Technicians arrive in marked vehicles with equipment listed by name - Rotobrush, Abatement Technologies, Nikro - and carry photo ID matching the name provided at booking. Haven Standard Clause 3: Verified Crews applies to every arrival.
In a 1941 bungalow off Euclid Avenue in Little Five Points, our tech found a return chase in the central hallway running against original framing with no mastic at the trunk collar. After negative pressure containment and a full camera inspection, we rebuilt the collar, sealed the supply and return ducts with mastic and mesh, and replaced two detached flex runs in the attic at the air handler. The homeowner stopped smelling attic air through the registers and the blower motor stopped short-cycling on a restricted return.
Ready for a written estimate? Call (470) 516-9337 to speak with a live person - 24 hours a day - and schedule your free, no-obligation duct inspection. Every estimate is delivered in writing before any work begins, every repair is photographed before and after, and every job is backed by our 365-Day Done Right Promise.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Atlanta since 2013.