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 Repair & Sealing Across Smyrna
Duct repair and sealing in Smyrna typically runs $280-$650 for most residential jobs, with full-system sealing in older crawl-space homes reaching the higher end and targeted flex duct repairs in townhomes landing lower. Our crews work Smyrna daily, dispatching from the Atlanta office with equipment for both the 1960s-1980s ranch stock near Concord Road and the compact townhome chases built during the 2000s redevelopment wave. Call (470) 516-9337 for a written estimate before any work starts - that’s Haven Standard Clause 1, and it’s how we’ve operated since 2013.
We know the parking situation at Smyrna’s attached townhome clusters, the crawl-space access under King Springs ranches, and the pollen load that coats return systems here faster than almost anywhere in the metro. That local familiarity means we show up with the right materials instead of making a second trip.
Why CleanRun Air Duct Cleaning Marietta Is Smyrna’s Preferred Duct Repair & Sealing Company
Our Duct Repair & Sealing team has documented photo records from thousands of Smyrna homes - split-levels off Spring Road, townhomes near the Village Green, and ranches along Concord Road - so we recognize the failure patterns before we open the first panel. Homeowners here research thoroughly before calling, and they tend to ask the same questions: What will this cost, what will I see, and how do I know it worked. We answer all three in writing before the van doors open.
Every Smyrna job starts with a written price, includes before-and-after photography inside every duct run, and closes with the 365-Day Done Right Promise backed in writing. No manager-approval process, no “call for a quote” - Haven Standard Clause 1 means the number you agree to is the number on the invoice. Technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. Tomas Reyes, who leads CleanRun, has held these standards since the company’s first job in 2013.
Scheduling and dispatch are coordinated from our Atlanta office, but crews serve Smyrna with local routing that accounts for morning traffic on South Cobb Drive and the tighter access restrictions in townhome communities. We’ve learned which Smyrna HOAs require 24-hour notice for equipment staging and which older neighborhoods have crawl-space hatches that haven’t been opened in decades.
Our Duct Repair & Sealing Services in Smyrna

Duct Sealing
Leaky duct seams in Smyrna’s unconditioned crawl spaces bleed conditioned air directly into the Georgia humidity, and the energy loss is measurable. We seal metal joints with mastic sealant - a water-based compound that remains flexible after curing - and reinforce with fiberglass mesh where pressure cycling is severe. In townhome shared chases, we pressure-test the entire trunk before sealing to identify which leaks are upstream of multiple units versus isolated to one supply run. A typical duct sealing job in Smyrna runs $320-$580 for a single-family home, with townhome shared-trunk work quoted per the scope of access.

Flex Duct Repair
Flex duct in Smyrna’s 2000s townhomes gets crushed behind chases, pinched by installers who prioritized speed over bend radius, or disconnected where tape adhesive has failed in attic heat. In the older ranch stock, flex liner deteriorates from decades of humidity exposure in crawl spaces. We replace damaged sections with R-8 insulated flex, secure with mechanical fasteners rather than tape alone, and photograph every connection before closing the chase. Flex duct repair in Smyrna typically costs $180-$340 per run, depending on access difficulty and whether the plenum connection needs rebuilding.

Metal Duct Repair
Original galvanized steel in Smyrna’s mid-century homes corrodes at seams where condensation collects, and vibration from the air handler can crack welded joints after 40+ years of cycling. We patch localized corrosion with matching gauge steel, re-seal with mastic, and add structural support where sagging has stressed the metal. When corrosion is too extensive for patch repair, we fabricate replacement sections on site. Metal duct repair in Smyrna generally ranges $260-$520, with full section replacement at the higher end.

Duct Insulation
Uninsulated or degraded duct wrap in Smyrna crawl spaces creates condensation that saturates surrounding insulation and promotes mold colonization. We install R-6 or R-8 fiberglass wrap with vapor-barrier jacket, sealed at all seams with matching tape, or replace damaged sections with pre-insulated flex where the original metal run has corroded. Proper insulation after sealing prevents the moisture problems that undo sealing work within a season. Duct insulation in Smyrna runs $340-$620 for typical residential systems, with crawl-space access adding labor time.

Mastic Sealant Application
Mastic is the standard for durable duct sealing in Smyrna’s pressure-cycled systems - it outlasts foil tape by years and maintains seal integrity through thermal expansion. We brush-apply mastic to all longitudinal seams, transverse joints, and register boots, then pressure-test to verify leakage reduction meets our internal threshold before declaring the job complete. Mastic work is typically bundled with sealing services but can be quoted separately for targeted repairs.

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.
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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.
Before
AfterTrusted Brands We Service in Smyrna
CleanRun crews carry professional-grade equipment from Abatement Technologies, Rotobrush, and Guardsman - brands that publish specifications customers can verify independently. We stock common flex diameters, mastic compounds, and insulated transition fittings for Smyrna’s two dominant housing types, so most repairs finish in one visit without waiting on parts. For townhome shared-chase work, our Nikro HEPA-filtered negative-pressure systems contain lint and debris during dryer vent clearing, protecting adjacent units from cross-contamination.
Common Duct Repair & Sealing Problems We See in Smyrna Homes

- Shared roof or sidewall dryer-vent chases packed solid with lint. In attached townhome communities throughout Smyrna, one blocked termination restricts airflow for every unit on that stack. The unit reporting long dry cycles is rarely the source of the blockage - it’s often the top-floor unit whose lint has accumulated above the others. We clear the full run under negative pressure with HEPA filtration and photograph the chase interior to document flow restoration.
- 1970s ductboard delaminating in crawl-space runs. Homes near Concord Road and King Springs regularly show ductboard where the fiberglass liner has separated from the board substrate, shedding particulate past the registers. Homeowners notice increased dust and occasional respiratory irritation before they connect it to the ductwork. Camera inspection flags it definitively, and replacement with sealed metal or insulated flex eliminates the source.
- Crushed or disconnected flex hidden behind townhome chases. Compact three-story layouts force duct runs through tight spaces where original installation left inadequate bend radius or where subsequent maintenance has dislodged connections. The symptom is uneven temperatures floor-to-floor and static pressure readings that don’t match the air handler’s rated output. We scope the chase, locate the restriction, and rebuild the run with proper support.
- Condensation-saturated insulation in unconditioned crawl spaces. Smyrna’s summer dew points in the low-to-mid 70s°F create persistent moisture on cool duct surfaces where insulation has degraded or vapor barriers have torn. The insulation becomes a wick rather than a barrier, and mold follows within a season. We remove saturated material, repair the underlying duct, and reinstall with intact vapor sealing.
Pricing for Duct Repair & Sealing in Smyrna, GA
Honest pricing means naming numbers. In Smyrna’s market, here’s what typical jobs cost:
| Service | Typical Range |
|---|---|
| Targeted flex duct repair (per run) | $180-$340 |
| Duct sealing with mastic (single-family system) | $320-$580 |
| Metal duct repair / section replacement | $260-$520 |
| Duct insulation (full system wrap) | $340-$620 |
| Townhome shared-chase dryer vent clearing | $220-$380 |
What moves a job toward the higher end: crawl-space access requiring confined-space protocols, multiple crushed runs in a townhome chase, or delaminated ductboard requiring full replacement rather than spot repair. What keeps it lower: single-run flex replacement with good access, or straightforward sealing of accessible metal trunk lines. Every estimate is free, written, and delivered before work starts - no per-vent pricing, no add-ons after arrival. Call (470) 516-9337 to schedule.
We Also Serve Cities Near Smyrna

CleanRun crews work throughout the metro, including Smyrna and neighboring Atlanta, Marietta, Kennesaw, and Roswell. Scheduling is coordinated from our Atlanta office with routing optimized for same-day or next-day availability across the service area.
Serving Smyrna, GA - Our Local Coverage Area
We’re based in the Smyrna 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 Smyrna

No, and attempting to would leave the blockage in place. In Smyrna’s attached townhome communities, the shared chase means lint accumulates along the full vertical run, and clearing only one lateral branch leaves the restriction affecting every unit on the stack. We clear the entire chase from termination to junction under negative pressure with HEPA containment, then document flow restoration with before-and-after photography. Most Smyrna HOAs require notice for this work; we coordinate that directly when you book. Call (470) 516-9337 for a written quote - estimates are free.
Yes, the failure modes are entirely different. Concord Road and King Springs ranches typically have unconditioned crawl-space flex or ductboard that has aged through 40-50 years of Georgia humidity cycling, with delamination and pest intrusion as the primary concerns. The 2000s townhome stock has compact multi-story chases with shared return trunks and crushed flex from tight installation, plus the stacked dryer-vent issue that doesn’t exist in detached homes. Our diagnosis and access plan match the actual housing stock - we don’t apply a generic metro approach to both. Call (470) 516-9337 to discuss your specific home.
Smyrna sits inside the Atlanta metro’s severe pollen belt, where pine, oak, and sweetgum produce airborne loads that consistently rank among the highest in the US. That biological debris enters return-air systems, coats duct interiors, and overwhelms standard filters between service intervals. Leaky ducts in crawl spaces or chases pull additional attic or wall cavity dust into the airflow. Sealed, intact ductwork with proper filtration reduces the accumulation measurably - we’ve photographed the difference in Smyrna homes before and after sealing. Call (470) 516-9337 for an inspection and written estimate.
Yes, though the exact percentage depends on the leakage severity and your system’s runtime hours. Unconditioned crawl spaces in Smyrna routinely reach 85°F+ in summer and 40°F in winter; ducts leaking into that space are heating or cooling the dirt instead of your rooms. After sealing, the air handler moves the designed volume to the registers rather than compensating for losses, so runtime drops. We pressure-test before and after sealing to document the reduction, and the photo record shows exactly which seams were treated. Most Smyrna homeowners see measurable improvement in cycle frequency within the first billing cycle. Call (470) 516-9337 for a written estimate.
We coordinate with property management or HOA contacts in advance, stage equipment at designated service areas, and use compact negative-pressure units that fit through standard doorways rather than requiring exterior generator placement. For shared-chase work, we notify affected units of the brief service window and contain all debris with HEPA filtration - no lint migration to adjacent homes. We’ve worked the parking restrictions at Smyrna’s denser townhome communities enough to know which ones need 24-hour notice and which have dedicated service courts. Call (470) 516-9337 and we’ll confirm the logistics when we schedule.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Marietta, serving Smyrna since 2013.




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