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 Roswell
Duct repair and sealing in Roswell typically runs $280-$850 per HVAC system depending on whether we’re reconnecting a separated flex run, applying mastic sealant to a leaking trunk line, or replacing collapsed ductwork in a vented attic. Most Roswell homes need the work done system by system, not as a vague “whole house” quote, and we deliver a written price for each before any panel comes off. Our crews dispatch from the Atlanta office and serve Roswell neighborhoods including Horseshoe Bend, Martins Landing, and the Historic Roswell Square area with same-week scheduling.
Call (470) 326-1926 for a written estimate. Estimates are free, and we bring a camera so you see what we see.
Why CleanRun Air Duct Cleaning Johns Creek Is Roswell’s Preferred Duct Repair & Sealing Company
We’ve been serving Roswell since 2013, and the pattern here is distinct from newer suburbs. The 1980s and early 1990s building boom that filled Horseshoe Bend and Martins Landing with homes also filled their attics with flexible ductwork that was never designed to survive forty summers above 140°F. Our Duct Repair & Sealing team has documented this failure mode in hundreds of Roswell homes, and that specific experience matters when a homeowner calls about “weak airflow upstairs.”
Every job we complete in Roswell is backed by the 365-Day Done Right Promise in writing, not as a verbal assurance. Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews, and we publish our license number on every estimate. The photo record we deliver shows the inside of every duct run before and after work, dated and labeled by register location, so a homeowner in Roswell can verify what was actually done in spaces they cannot access themselves.
We answer calls with live people, 24/7, and we do not use “call for a quote” language because Haven Standard Clause 1 requires a written price before any work starts. If you’ve received another company’s written estimate for duct repair in Roswell, we provide a Free Second Opinion at no cost, with our number next to theirs.
Our Duct Repair & Sealing Services in Roswell
Flex Duct Repair
Roswell’s dominant housing stock, built between 1978 and 1998, relies on flexible duct runs through vented attics. In Horseshoe Bend and Martins Landing, we regularly find original 1980s flex duct that has sagged, torn at the inner liner, or pulled completely away from trunk-line wyes after decades of thermal cycling. Flex duct repair in Roswell means reconnecting these runs with mechanical fasteners and collar supports rated for attic temperature extremes, then sealing with mastic, not tape that will fail in the next heat wave. We photograph every connection before closing attic insulation.
Mastic Sealant Application
Mastic is a water-based sealant that remains flexible after curing, and it’s the only material we use on metal trunk lines and flex duct connections in Roswell attics. Duct tape degrades; mastic doesn’t. We apply it with a brush or sprayer to all longitudinal seams, transverse joints, and register boots, then document coverage with dated photos. A typical mastic sealant job on a single system in Roswell runs $340-$520, depending on accessible seam length and whether we’re working around existing blown-in insulation.
Air Leak Repair
Air leaks in Roswell ducts are rarely single dramatic failures. They’re cumulative: a loose register boot here, a separated collar there, a trunk line seam that opened after years of static pressure cycling. We pressurize each system individually, measure leakage at the air handler, then locate and repair each point with the appropriate method, mechanical or sealant. In multi-system Roswell homes, especially those with two or three zones added during renovation, we test and document each system separately so nothing is assumed sealed because “the other one looked fine.”
Metal Duct Repair
Older sections near Historic Roswell Square sometimes contain galvanized steel ductwork from retrofits or pre-1960s construction that was later modified. Metal duct repair here involves sealing rusted seams, replacing damaged sections with matching gauge material, and ensuring transitions to flex runs are properly supported. Access in these older homes can be tight, and we price that complexity in writing before starting.
Duct Insulation
When flex duct insulation has degraded from condensation and microbial growth, common in Roswell’s humid Piedmont summers, we replace the run or apply closed-cell insulation wrap to trunk lines. Insulation R-value matters in attics that hit 140°F, and we specify what we’re installing so a homeowner can verify it independently.
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 Roswell
Our equipment roster includes Rotobrush for mechanical agitation in duct runs, Abatement Technologies for negative-pressure containment and HEPA filtration, and Aprilaire for air quality components integrated with repaired duct systems. We stock common flex duct diameters, collar sizes, and mastic compounds for Roswell jobs, so most repairs don’t wait on parts. Guardsman-protected tools go into every truck. Customers can look up each manufacturer independently, and we name them because a technician who won’t say what equipment they’re using is a technician with something to hide.
Common Duct Repair & Sealing Problems We See in Roswell Homes
- Collapsed flex duct at trunk connections in 1980s planned communities. In Horseshoe Bend and Martins Landing, decades of attic thermal cycling have caused original flex duct to partially collapse or pull away at trunk-line connections. A cleaning call frequently becomes a repair disclosure before any suction work begins.
- Pollen infiltration through aging duct connections. Roswell’s dense pine, oak, and sweet gum canopy produces some of the heaviest seasonal pollen loads in metro Atlanta. This pollen infiltrates gaps in duct connections and accumulates on flex liner, where humid summer air keeps it damp enough to support microbial growth.
- Multi-system homes quoted as single “whole house” jobs. Many Roswell homes have two or three separate HVAC systems, often added during renovation. A blower motor-driven static pressure test per system reveals leaks in the less accessible attic run that a generic whole-house quote would miss entirely.
- Condensation damage in unconditioned attics. Roswell’s combination of 70%+ summer humidity and 140°F+ attic temperatures creates persistent condensation on flex duct inner liners. This degrades the liner adhesive, causes sagging between supports, and promotes mold colonization inside the duct.
Pricing for Duct Repair & Sealing in Roswell, GA
We price by the system, not by the vent, because that’s the only way to account for the actual work in a multi-system Roswell home. A single-system flex duct repair with mastic sealing of accessible trunk connections typically runs $280-$450. Two-system homes common in Martins Landing and newer Roswell subdivisions range $520-$780. Three-system properties, often found in the larger custom builds of Horseshoe Bend, run $780-$1,150 when we’re reconnecting separated runs and sealing all accessible joints per system.
Factors that move the price: attic accessibility (blown-in insulation adds labor), the number of separated or collapsed runs we find during camera inspection, whether metal trunk line repair is needed, and if insulation replacement is required due to condensation damage. We deliver a written price before any work starts, every time, under Haven Standard Clause 1. No per-vent pricing. No coupon that triples once the truck arrives.
Call (470) 326-1926 for a written estimate. Estimates are free.
We Also Serve Cities Near Roswell
Our crews work throughout North Atlanta, including Roswell and neighboring Alpharetta, Woodstock, Marietta, and Holly Springs. Each city gets the same written-price-first protocol and documented photo record, though the housing stock and failure patterns differ. Roswell’s 1980s flex-duct concentration is distinct from the newer construction in parts of Alpharetta or the older stock in Marietta, and we price accordingly.
Serving Roswell, GA - Our Local Coverage Area
We’re based in the Roswell 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 Roswell
Yes. We test, repair, and document each system individually. A three-system home in Horseshoe Bend or Martins Landing typically requires separate static pressure testing per air handler, separate camera inspection of each system’s duct runs, and separate mastic sealing of accessible joints. We price each system in writing before work begins, so a homeowner knows exactly what each zone costs rather than receiving a vague “whole house” figure that obscures which leaks were actually found and fixed. Call (470) 326-1926 for a per-system written estimate.
Because the original flexible ductwork in these communities was installed 30-40 years ago in vented attics that routinely exceed 140°F, and thermal cycling has degraded the liner adhesive and caused partial collapse or separation at trunk connections. Cleaning a duct that’s dumping conditioned air into the attic through a separated wye is wasted money. We camera-inspect first, disclose any separation or collapse we find, and repair before any cleaning work begins. The photo record shows you exactly where the failure was and how it was corrected.
We remove or work around attic insulation to access the failed run, reconnect separated sections with mechanical collars and supports rated for high-temperature attics, apply mastic sealant to all joints, and verify with a static pressure test that the system holds pressure at the air handler. If the flex liner is torn or the insulation is saturated with condensation damage, we replace the run with new flex duct of matching diameter. Every connection is photographed before insulation is replaced. A typical single-run repair with sealing takes 2-3 hours in a Roswell attic.
We deliver a Documented Photo Record as a standard deliverable on every job, included at no additional charge. This shows the inside of every duct run before and after work, with date stamps and register locations labeled. For Roswell duct repair jobs, it also includes photos of the repaired trunk connections, the mastic application, and the static pressure test results. You receive this record as part of your job file, not as an upsell. If a company won’t show you what they did, they didn’t do it.
Yes. Roswell sits in the Piedmont zone with dense forest cover that produces among the heaviest pollen loads of any North Atlanta suburb. Pollen infiltrates aging duct connections and accumulates on flex liner, while 70%+ summer humidity creates condensation inside ducts that accelerates liner degradation and microbial growth. Homes with original 1980s ductwork in unconditioned attics typically need inspection every 3-5 years, and repair or resealing when static pressure tests show leakage above 10% of system airflow. Call (470) 326-1926 to schedule a pressure test and camera inspection.
We were called to a two-story in Martins Landing where the homeowner complained of uneven cooling upstairs; our tech found the original 1980s flex run had separated at the trunk wye, dumping conditioned air into a 140°F attic. We used camera inspection to map three systems, reconnected and mastic-sealed the trunk-line joint, then ran negative-pressure source removal with HEPA filtration on all supply and return ducts before balancing airflow at the registers. The photo record showed the separated joint, the sealed connection, and the post-repair static pressure reading for each system. Written price delivered before any work started, as always.
Ready for a written estimate on duct repair and sealing in Roswell? Call (470) 326-1926. We’ll bring the camera, test each system, and show you exactly what needs to happen before any panel comes off.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Roswell and North Atlanta since 2013.