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 Mableton
Duct repair and sealing in Mableton typically costs $280-$650 for most residential jobs, with flex duct replacement running $180-$340 per run and whole-system mastic sealing averaging $450-$850. Most repairs are completed in a single visit, with written pricing delivered before any work begins. Call (470) 495-9370 for a free estimate.
We serve Mableton’s neighborhoods from our Atlanta office, with crews working daily in the older ranch and split-level corridors off Floyd Road, Veterans Memorial Highway, and the South Cobb Drive corridor. These homes carry duct systems that are now 40 to 60 years old, and the repair needs here are different from what you’ll find in newer Cobb County construction. Our technicians know the local housing stock, the crawl-space configurations over Georgia red clay, and the specific failure patterns that develop in Mableton’s climate.
Why CleanRun Air Duct Cleaning Atlanta Is Mableton’s Preferred Duct Repair & Sealing Company
CleanRun has held the same practice since 2013: every job starts with a written price, proceeds with a documented photo record of every duct run, and ends with the 365-Day Done Right Promise in writing. Homeowners in Mableton’s 30126 ZIP and surrounding areas have responded to that approach. We do not offer $79 coupons or “call for a quote” pricing. Haven Standard Clause 1 requires a written price before any panel comes off.
Our crews are background-checked, uniformed, and identified by name before arrival, operating under Haven Standard Clause 3: Verified Crews. The equipment on every truck includes Rotobrush and Nikro systems, Honeywell and Aprilaire components, and Abatement Technologies HEPA filtration. Customers can verify these brands independently.
Scheduling and dispatch are coordinated from our Atlanta office, but the crews serving Mableton live and work in the west-metro corridor. They know the difference between a 1968 ranch on Clay Road and a 2019 townhome off South Cobb Drive, and they arrive prepared for the specific duct configuration each era produced.
Our Duct Repair & Sealing Services in Mableton
Flex Duct Repair
Mableton’s crawl spaces are hard on flex duct. The original 1970s and 1980s flex runs in neighborhoods like those along Mableton Parkway and the Fontaine Road area were installed with minimal support, draped over damp red clay, and left to sag for decades. We replace collapsed sections with properly supported flex duct rated for the static pressure of modern air handlers, reconnect trunk-line junctions, and seal every joint with mastic, not tape. A typical flex duct repair in Mableton runs $180-$340 per run.
Mastic Sealant Application
Leaky seams and joints are the entry point for Mableton’s heavy pollen load. The Atlanta metro ranks consistently in the nation’s top five for airborne pollen, and Mableton sits squarely in that corridor. We apply professional-grade mastic sealant to every accessible joint in the duct system, sealing the plenum, trunk lines, and branch connections. Mastic remains flexible after curing, so it handles the thermal expansion that metal ducts experience through Georgia’s long cooling season. Whole-system mastic sealing in Mableton typically ranges from $450-$850 depending on system size and accessibility.
Air Leak Repair
Disconnected ducts in Mableton crawl spaces do more than waste energy. They pull red-clay dust, mold spores, and crawl-space debris directly into the air handler and distribute it through the house. Our crews locate leaks with pressure testing and camera inspection, then repair with mechanical fastening and mastic sealing. For older duct-board systems, we evaluate whether localized repair or section replacement is the more durable solution. Air leak repair in Mableton generally falls between $280-$520 for standard residential systems.
Metal Duct Repair
Some Mableton homes, particularly mid-century builds in the original town center, have galvanized steel ductwork with rusted seams or failed joints. We cut out damaged sections, fabricate replacement pieces on site, and seal with mastic and mechanical fasteners. Metal repair requires more labor than flex replacement, so costs run higher, typically $320-$650 depending on the extent of corrosion and the number of access points needed.
Duct Insulation
Uninsulated or degraded duct insulation in Mableton crawl spaces creates condensation during humid months, which promotes mold growth and reduces system efficiency. We replace insulation with products rated for crawl-space moisture exposure, properly sealed at all seams. Duct insulation work in Mableton averages $380-$720 for a full system.
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 Mableton
CleanRun stocks components from Honeywell, Aprilaire, and Abatement Technologies on every truck serving Mableton. These are not proprietary parts. Customers can look up the model numbers, compare specifications, and verify that the components meet their system’s requirements. For duct repair and sealing, we use professional-grade mastic, mechanical fasteners, and flex duct from trade-recognized manufacturers. If your system uses specific Aprilaire air-cleaner housings or Honeywell zoning panels, our technicians carry the common configurations and can source same-day replacements for less common setups.
Common Duct Repair & Sealing Problems We See in Mableton Homes
- Crawl-space flex duct collapse. The original flex runs in Mableton’s 1960s-1980s homes were installed with inadequate support over damp red clay. After 40-60 years, they sag, collapse, or disconnect at trunk-line connections. The HVAC system then pulls conditioned air and crawl-space debris into the subfloor cavity instead of the living space. Homeowners notice weak airflow, dust from registers, and musty odors.
- Pollen-loaded leaky seams. Mableton’s location west of Atlanta’s pollen corridor means oak, pine, and sweet-gum pollen accumulates heavily in ducts with unsealed joints. The cooling season runs May through October, so the system pulls that pollen continuously. Leaky seams also admit humid crawl-space air, creating interior condensation that supports mold growth on fiberglass duct board.
- Poorly supported newer flex duct. Townhomes and mixed-use buildings along Veterans Memorial Highway and South Cobb Drive often have flex duct installed with insufficient hanging straps. Low spots develop where debris and moisture collect, airflow drops, and the system works harder for less result.
- Duct-board deterioration. Original fiberglass duct board in Mableton’s older homes degrades at the seams. The fiberglass facing delaminates, the sealant fails, and the rough interior surface traps debris. Once duct board begins to shed fibers into the airstream, section replacement is usually more durable than repeated repair.
Pricing for Duct Repair & Sealing in Mableton, GA
CleanRun publishes price ranges because Haven Standard Clause 1 requires a written price before any work starts. Here is what duct repair and sealing costs in Mableton’s market:
| Service | Typical Range |
|---|---|
| Flex duct repair / replacement (per run) | $180 - $340 |
| Air leak repair (standard system) | $280 - $520 |
| Metal duct repair | $320 - $650 |
| Whole-system mastic sealing | $450 - $850 |
| Duct insulation replacement | $380 - $720 |
Factors that move a job toward the higher end: multiple disconnected runs, extensive rust in metal duct, limited crawl-space access requiring additional access panels, and systems with more than 12 duct runs. Every estimate is free, delivered in writing, and held under the Free Second Opinion policy. Bring a competitor’s written quote; we will put our number next to it.
We recently worked a 1970s ranch off Floyd Road where the homeowner complained of dust blowing from the registers and a persistent musty smell. A camera inspection showed a disconnected flex run at the trunk line in the crawl space, and the air handler was pulling red-clay dust and mold spores from the subfloor cavity. We reconnected and mastic-sealed the joint, replaced the collapsed section with supported flex, and cleaned the supply and return ducts under negative pressure with HEPA filtration; the static pressure dropped and the dust complaint stopped.
We Also Serve Cities Near Mableton
Our Duct Repair & Sealing in Mableton crews also work in Smyrna, Powder Springs, Atlanta, and Marietta. The housing stock and duct configurations vary by city, and our technicians adjust their approach accordingly. For homeowners in these areas, our Duct Repair & Sealing team provides the same written pricing, documented photo record, and 365-Day Done Right Promise.
Serving Mableton, GA - Our Local Coverage Area
We’re based in the Mableton 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 Mableton
Every 3 to 5 years for most Mableton homes, and every 2 to 3 years if you live on or near unpaved roads where dust loading is higher. The combination of 40-60-year-old duct systems, heavy pollen, and red-clay dust means debris accumulates faster here than in newer suburbs. Homes with wood heat or significant tree canopy overhead should plan toward the shorter interval. Call (470) 495-9370 to schedule an inspection and we will show you what the camera sees.
It starts with a camera inspection of every duct run, followed by pressure testing to quantify leakage. For most Mableton ranches, we find disconnected or collapsed flex duct in the crawl space, leaky seams at the plenum and trunk lines, and degraded insulation. We repair or replace damaged sections, apply mastic sealant to all joints, add proper support straps, and deliver before-and-after photos of every run. The written price is agreed before any work begins. A full repair and sealing on a typical Mableton ranch runs $650-$1,200.
Three factors converge: high humidity from crawl spaces over damp red clay, leaky seams that admit that humid air, and pollen and organic debris that provide a food source. Mableton’s cooling season runs six months, so condensation forms repeatedly inside ducts that are not properly sealed and insulated. Once mold establishes in fiberglass duct board, it is difficult to remove completely; section replacement is usually the durable fix. Call (470) 495-9370 for a camera inspection if you smell mustiness from the registers.
Weak airflow from some registers but not others, dust blowing from vents when the system starts, musty odors, and rooms that stay consistently warmer or cooler than the thermostat setting are the common signs. In Mableton’s older neighborhoods, we find disconnected flex runs in roughly one of every three crawl spaces we inspect. The homeowner rarely knows until we show them the camera footage. A duct inspection with photo documentation is included in every estimate we provide.
Yes. Our repair and sealing work follows NADCA guidelines for containment, negative-pressure extraction, and post-repair verification. We use Abatement Technologies HEPA filtration on every job, and the documented photo record shows the condition of every duct run before and after our work. The 365-Day Done Right Promise applies to all Mableton jobs in writing. Call (470) 495-9370 for a free estimate with written pricing.
Ready to stop losing conditioned air to your crawl space? Call CleanRun at (470) 495-9370 for a free written estimate. We’ll inspect your duct system with a camera, show you exactly what we find, and deliver a fixed price before any work starts. Every job includes a documented photo record of every duct run and our 365-Day Done Right Promise in writing.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Mableton since 2013.