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 Smyrna
We dispatch crews to Smyrna daily from our Atlanta office, and most Lockheed-era ranch neighborhoods like Oakdale or King Springs are on our route within the hour. If you’re noticing uneven temperatures between rooms, dust that returns within days of cleaning, or your blower motor working harder than it should, the problem is often in the ductwork itself - not the HVAC unit. Call (678) 904-9744 and we’ll put a written price in front of you before any panel comes off.
Our Duct Repair & Sealing team knows Smyrna’s housing stock intimately. We’ve worked on enough 1960s ranches along Spring Road and the original subdivisions near the old Lockheed plant to recognize the failure patterns before we unload the truck. That local familiarity means faster diagnosis and no guesswork on your invoice.
Why CleanRun Air Duct Cleaning Sandy Springs Is Smyrna’s Preferred Duct Repair & Sealing Company
We’ve served Smyrna homeowners since adding the area to our route schedule in 2013, and the feedback we hear most often is that residents here are tired of the $79 coupon bait-and-switch. Our approach is different: Haven Standard Clause 1 requires a written price before any work starts, every time, with no call-for-quote runaround. Smyrna customers get the same documented photo record we deliver on every job - inside every duct run, before and after - so you can verify what was actually done.
Our technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. They’re equipped with professional-grade tools from Rotobrush, Nikro, and Abatement Technologies - brands you can look up yourself before agreeing to anything.
Scheduling and dispatch are coordinated from our Atlanta office, but crews live and work the Smyrna area regularly. We know the difference between a 1952 ranch near the original Lockheed village and a 2005 townhome off Village Parkway, and we adjust our approach accordingly.
Our Duct Repair & Sealing Services in Smyrna
Duct Sealing
Most Smyrna homes lose 20-30% of conditioned air through leaks in the duct system before it ever reaches the registers. In Lockheed-era ranches with metal trunk lines and fiberglass branch ducts, the seams were originally sealed with fabric tape that has dried and failed decades ago. We seal every accessible joint with mastic - a thick, permanent compound that flexes with temperature changes - and we pressure-test the system afterward to verify the improvement. This matters more in Smyrna than in drier climates: our piedmont humidity means every leak is also a condensation point, and wet fiberglass liner degrades faster than dry.
Flex Duct Repair
The flex duct that connects Smyrna’s metal trunk lines to individual rooms was never designed to last 50 years. We regularly find crushed, kinked, or fully disconnected flex runs in attics across the King Springs and Oakdale areas - often where a homeowner or handyman stepped through the insulation years ago and never reported it. Our crews replace damaged flex with new, properly sized runs and seal the connections with mastic and mechanical fasteners, not tape alone. Every repair is photographed before and after, included in your job record.
Metal Duct Repair
Original galvanized steel trunk lines in Smyrna’s postwar ranches can corrode at the seams, separate at joints, or develop holes from decades of vibration. We repair localized damage with metal patches and sealant, or recommend section replacement when the damage is too extensive to hold a reliable seal. The decision is documented with photos and explained in plain language before you sign off on any work.
Duct Insulation
Uninsulated or poorly insulated ductwork in Smyrna attics bleeds cooling into 140°F summer airspace and picks up heat that your compressor then has to overcome. We install proper insulation barriers on repaired or replaced ducts, sized to current energy code standards, with particular attention to the return-air plenum - the large central chamber where temperature losses are most costly.
Mastic Sealant Application
Mastic is the only sealant we trust for permanent duct repairs in Smyrna’s humidity. Unlike tape, it doesn’t dry out, and unlike aerosol sealants, it allows us to verify coverage visually. We brush-apply mastic to every joint, seam, and penetration on accessible ductwork, then let it cure before pressure-testing. This is standard on every sealing job we perform - not an upsell.
Air Leak Repair
Leaks at the plenum, around filter racks, and where ducts pass through wall cavities are common in Smyrna’s older homes. We trace these with blower-door assisted diagnostics when needed, then repair and seal each location methodically. The goal is measured improvement, not just a visual patch.
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 Smyrna
Our equipment roster includes professional-grade systems from Rotobrush, Nikro, and Abatement Technologies - brands recognized across the HVAC trade for reliability and verifiable performance specifications. We stock common repair parts and sealants locally, so most Smyrna jobs are completed in a single visit without waiting on shipped materials. If your system uses specialized components from Honeywell, Aprilaire, or Guardsman, our technicians carry the documentation to verify compatibility before installation.
Common Duct Repair & Sealing Problems We See in Smyrna Homes
- Crumbling fiberglass duct liner in Lockheed-era ranches. The original fiberglass liner inside metal trunk lines has often physically degraded after 50-plus years of Georgia humidity cycles, releasing glass fibers into the airstream. Standard cleaning agitation can make this worse by dislodging more material - we see this constantly in Smyrna’s postwar homes near King Springs Road and Oakdale.
- Condensation damage at poorly sealed joints. Smyrna’s summer dew points regularly hit the upper 60s to 70s°F. Any micro-gap in ductwork becomes a condensation surface, accelerating mold colonization and rusting metal seams from the inside out. Mastic sealing is the fix, and it matters more here than in drier Sun Belt metros.
- Pollen-saturated return-air systems. Metro Atlanta’s oak, pine, and sweet gum pollen seasons coat everything in yellow-green dust for weeks each spring. That pollen enters Smyrna’s duct systems through return grilles, overwhelming filters and embedding in already-degraded fiberglass liners. Sealed, intact ductwork is the first defense.
- Disconnected or crushed flex duct in attic spaces. Original flex runs in Smyrna’s ranch attics have often been damaged by maintenance activity, pest intrusion, or simple compression from shifted insulation. We find fully separated runs blowing conditioned air directly into the attic - invisible from living spaces but costly on the power bill.
Pricing for Duct Repair & Sealing in Smyrna, GA
A typical duct sealing job for a 1,500-2,000 square foot Smyrna ranch runs $850-$1,400, depending on accessibility and the condition of existing seams. Flex duct repair or replacement is priced per run, usually $180-$340 for standard bedroom-length branches. Metal trunk line repair with mastic sealing and patch work ranges from $400-$750 for localized damage; full section replacement runs higher and is quoted only after camera inspection.
These are whole-system prices, not per-vent teaser rates. We deliver a written price before any work starts, every time, under Haven Standard Clause 1. No exceptions. Your estimate includes the documented photo record, pressure testing where applicable, and our 365-Day Done Right Promise in writing. Bring a competitor’s written quote and we’ll provide a Free Second Opinion at no cost.
We Also Serve Cities Near Smyrna
Our crews regularly work Smyrna and surrounding communities including Atlanta, Marietta, Kennesaw, and Roswell. Dispatch is coordinated from our Atlanta office, with local routing optimized to minimize drive time to your property.
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
For Smyrna properties on unpaved roads or with supplemental wood heat, we recommend inspection every 2-3 years and cleaning every 3-5 years - more frequently if you burn wood as a primary heat source or notice visible dust accumulation at registers within weeks of cleaning. Wood combustion produces fine particulate that standard filters don’t catch, and unpaved road dust adds mineral loading that abrades flex duct interiors. Call (678) 904-9744 for a free inspection and we’ll photograph the interior condition so you can decide based on evidence rather than a calendar.
It depends on the liner condition, which we determine with camera inspection. If the fiberglass liner is intact but dirty, we can clean and encapsulate it with a permanent sealant coating. If it has crumbled into loose fibers - the condition we find most often in Smyrna’s Lockheed-era homes - cleaning alone will make it worse, and we recommend either full liner encapsulation or duct replacement. We were called to a 1968 ranch near King Springs Road where the homeowner had been finding fine glass fibers on the supply registers for months. Our tech ran a camera inspection down the main trunk and found the original fiberglass liner had disintegrated into a powdery layer on the bottom of the metal duct, so we sealed every joint with mastic and encapsulated the liner rather than attempting a standard cleaning. After the repair, the particulate readings at the registers dropped dramatically and the blower motor stopped pulling that debris into the living space. The repair cost $1,120; replacement would have run $2,800-$3,400. We document the liner condition with photos and explain both options in writing before you decide.
Smyrna’s postwar ranches were built with fiberglass-lined metal ductwork that was never designed to survive 50-plus years of Georgia’s humidity cycles, while Kennesaw and Acworth’s 1990s-2000s construction typically uses unlined metal or modern flex duct with polymer-based insulation. The fiberglass liner in Smyrna homes absorbs moisture seasonally, expands and contracts, and eventually pulverizes - a failure mode that simply doesn’t exist in newer materials. That localized housing history is why we carry encapsulation equipment and liner-specific repair supplies that crews working newer suburbs rarely need.
Yes. Outbuilding systems - workshops, guest cottages, detached garages with mini-splits - typically run less frequently and with less filtration than main house systems, which allows dust and pollen to settle and compact between cycles. We recommend inspection every 3-4 years for outbuildings in the Smyrna rural edge, with cleaning timed to visible register dust or musty startup odors. These systems also have shorter, more direct duct runs that are easier to inspect and repair, so maintenance costs are usually lower than the main house. Call (678) 904-9744 and we’ll schedule both systems on the same visit.
We avoid scheduling sealing work during peak pollen weeks in late March through mid-April when possible, because opened ductwork during that window can introduce massive pollen loads into the system. If emergency repair is needed during pollen season, we seal temporary covers over opened sections and run negative-pressure extraction during the work to prevent contamination. For planned sealing jobs, we typically book Smyrna appointments in May or early June, after the oak and pine pollen has settled but before peak summer heat makes attic work brutal. Call (678) 904-9744 and we’ll recommend the optimal timing for your specific neighborhood.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Smyrna since 2013.