Fast, Reliable Duct Repair & Sealing Across College Park
Duct repair and sealing in College Park, GA typically costs $180–$650 depending on the scope, with most residential jobs completed same-day. If you’re losing conditioned air through gaps in your ductwork or dealing with collapsed flex lines in an older home near Roosevelt Highway, we can inspect and quote it this afternoon. Call (877) 565-7296 for a free estimate.

We’ve worked College Park properties for two decades — from the mid-century ranches off Virginia Avenue to the acreage spreads south of the airport with detached workshops and long service drives. Scott Gray has crawled through attics in the 30337 ZIP code since before the Camp Creek Marketplace went in, and our Duct Repair & Sealing team knows the difference between a standard suburban duct job and the heavy-duty work these properties demand. College Park isn’t just another Atlanta suburb to us. It’s a market where airport contamination, older housing stock, and rural acreage properties create repair scenarios you won’t find in Hapeville or East Point.
Why Everest Air Duct Cleaning Service Georgia Is College Park’s Preferred Duct Repair & Sealing Company
Scott Gray has worked every job for 20 years — your College Park home gets the owner, not a substitute. That matters on acreage properties where one missed detail means a second trip across a quarter-mile service drive.
433 neighbors have rated us 4.9 stars — the numbers speak for themselves. College Park customers specifically mention our willingness to tackle detached workshop ductwork that other companies won’t touch, and our habit of fixing the root problem instead of patching symptoms.
We typically reach College Park properties within 45 minutes of a call, including the hotel corridor along Camp Creek Parkway and the residential pockets off Roosevelt Highway. Our trucks carry insulated flex duct, metal transition fittings, mastic sealant, and the full Rotobrush and Nikro HEPA vacuum setup — so we’re not making supply runs while your system stays open.
Two decades of crawlspace-level experience goes into every inspection. In College Park, that means recognizing when dark duct residue is normal Georgia dust versus the fine particulate signature of jet exhaust from Hartsfield-Jackson — a distinction that changes how we seal and what we recommend.
Our Duct Repair & Sealing Services in College Park
Duct Sealing
Leaky ducts waste 20–30% of conditioned air before it reaches your rooms. In College Park, we see this compounded by two factors: original mastic seals aging out in 1940s–1960s ranch homes, and airport soot working into gaps that wouldn’t matter in cleaner air. We seal supply and return plenums, register boots, and longitudinal seams with brush-applied mastic rated for Georgia humidity. On commercial properties near the airport terminals, we often find seams that were never sealed at original install — just taped — and we remediate those with proper mastic and fiberglass mesh reinforcement.
Flex Duct Repair
Flex duct is the weak link in most College Park attics. The older ranches near Virginia Avenue have original flex that’s brittle from decades of heat cycling. Worse, on acreage properties with detached workshops, we’ve found flex crushed where long service drives cross over buried lines, or collapsed entirely from age and rodent damage. We replace compromised flex with properly sized, insulated runs — R-6 minimum for attics — and support them every 4 feet to prevent sagging that traps condensation. On metal-to-flex transitions, we use mechanical connections sealed with mastic, not tape that’ll peel in six months.
Metal Duct Repair
Galvanized steel ductwork in College Park’s commercial buildings — the hotels, car rental facilities, and airport support structures along Camp Creek Parkway — takes a beating from continuous occupancy and vibration. We repair separated longitudinal seams, replace rusted sections, and install access doors where previous contractors cut holes and never sealed them properly. For residential metal duct in older College Park homes, we address the common failure point: corroded elbows where condensation pools, especially on supply lines running through unconditioned attic spaces.
Duct Insulation
Georgia’s humid summers create a specific problem in College Park’s older ranch homes: cold supply ducts in hot attics sweat profusely, saturating insulation and breeding mold. We replace waterlogged insulation with fresh R-6 or R-8 fiberglass wrap, sealed at all seams with vapor-barrier mastic. On acreage properties with detached workshops, we often find uninsulated metal lines that never had proper wrapping — a quick energy-payback upgrade once we repair the underlying leaks. Proper insulation also prevents the condensation that combines with airport particulates to accelerate biofilm growth in ways we don’t see in drier inland markets.

Mastic Sealant Application
We don’t use duct tape. In College Park’s humidity, tape fails. We brush-apply water-based mastic — the same compound rated for commercial HVAC — at every joint, seam, and penetration. On a typical 1,800-square-foot ranch in the 30337 area, we’ll use 2–3 gallons of mastic and spend the better part of a day ensuring complete coverage. The mastic remains flexible, accommodates thermal expansion, and carries a 10-year performance life in attic conditions. For fire-rated commercial applications near the airport, we use intumescent mastic where code requires.
Air Leak Repair
We pressure-test duct systems before and after repair to quantify leakage. College Park homes routinely test at 25–35% leakage before our work, and we target under 10% post-repair — often hitting 5–7% on well-maintained systems. The biggest culprits: disconnected boots at ceiling registers (common after amateur filter changes), unsealed return air pathways drawing attic air, and gaps around furnace cabinets where installers got sloppy decades ago.
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.
Trusted Brands We Service in College Park
We stock Honeywell and Aprilaire air quality components for College Park customers who want to close the loop from dirty ducts to genuinely cleaner air — media filters, UV germicidal lamps, and whole-home dehumidifiers that address the humidity load our climate throws at duct systems. Our repair trucks carry mastic from major HVAC suppliers, and we source metal duct and flex from Atlanta-area wholesalers with same-day availability. For the commercial properties along Camp Creek Parkway, we maintain relationships with suppliers who stock large-diameter spiral duct and specialized dampers — no waiting on freight while your hotel guests complain about stuffy rooms.
Common Duct Repair & Sealing Problems We See in College Park Homes
- Collapsed flex duct in detached workshops. On acreage properties south of the airport, we regularly find flex lines to outbuildings that have failed from age, rodent intrusion, or crushing under vehicle traffic on long service drives. These require metal replacement and proper support — not another flex patch.
- Deteriorated mastic seals in mid-century ranches. Homes built in the 1950s–1960s near Roosevelt Highway often have original duct seals that have turned to powder. We scrape back to clean metal and reseal completely — a full-day job that restores system integrity.
- Airport soot infiltration through unsealed returns. The jet exhaust particulate load near Hartsfield-Jackson finds every gap. We find dark staining around return air pathways in homes within a few miles of the runways, and we seal these pathways to prevent continuous recontamination.
- DIY duct tape repairs failing in humidity. Self-reliant College Park homeowners often try tape fixes that peel within a season, leaving sticky residue that complicates proper mastic application. We remove the old tape entirely and do it right.
Pricing for Duct Repair & Sealing in College Park, GA
| Service | Typical Range in College Park |
|---|---|
| Mastic sealant application (whole system) | $350–$550 |
| Flex duct repair/replacement (per run) | $180–$340 |
| Metal duct section replacement | $280–$480 |
| Duct insulation replacement (per run) | $220–$380 |
| Air leak detection & repair | $200–$400 |
| Detached workshop duct repair (acreage properties) | $450–$650 |
What moves you within these ranges: accessibility (crawlspace vs. walk-in attic), duct material, and whether we’re repairing one run or the full system. Acreage properties with detached workshops run higher due to longer material runs and the heavy-duty components involved. We don’t quote over the phone for complex jobs — we inspect, pressure-test if needed, and give you a written estimate with no obligation. Call (877) 565-7296 to schedule.
We Also Serve Cities Near College Park
Our service radius covers Hapeville to the north, East Point along the MARTA corridor, Riverdale south on Highway 85, and Union City to the southwest. Each has its own ductwork challenges — Hapeville’s tight bungalow lots, East Point’s mixed-era housing stock, Riverdale’s newer subdivisions with different failure modes — but College Park’s airport-adjacent contamination profile and acreage properties make it uniquely demanding.
Serving College Park, GA — Our Local Coverage Area
We’re based in the College Park 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 College Park
They don’t — that’s a garage door component, not a duct access issue. On acreage properties, the heavier-duty springs we encounter are on the oversized workshop doors themselves, not duct panels. Proper duct access uses hinged doors with cam latches or screwed panels that don’t need spring mechanisms. If you’re dealing with a workshop that has both garage door and ductwork concerns, we can address both in one trip — call (877) 565-7296 and we’ll scope the full job.
It creates a contamination profile found nowhere else in metro Atlanta. Jet exhaust particulates and kerosene combustion byproducts enter outdoor air intakes and infiltrate through every unsealed duct gap, coating interiors with a fine dark residue. This means College Park sealing jobs must be more thorough — we seal every penetration, not just the obvious leaks — and we often recommend additional HEPA vacuuming passes that wouldn’t be necessary a few miles north. The soot also accelerates degradation of tape adhesives, making mastic the only reliable sealant here. Call (877) 565-7296 for an inspection if you notice dark dust around your registers.
Yes, and we typically replace it with metal duct rather than repair the flex. Crushed flex under a service drive indicates the line was improperly buried or unprotected, and any flex replacement would face the same risk. We install galvanized metal duct with proper bedding and protection, then seal all joints with mastic. On a 1950s ranch on Roosevelt Highway, we found exactly this scenario — flex to a detached workshop collapsed from age and mastic seals failed, allowing airport soot to infiltrate. We replaced the flex with insulated metal, sealed all joints with mastic, and recalibrated the heavy-duty opener springs on the 12-foot workshop door in a single visit. Call (877) 565-7296 for a free estimate on rural property duct repair.
We use fiber-reinforced, water-based mastic compounds rated for high-humidity applications — specifically formulations that carry UL 181 approval and remain flexible through Georgia’s temperature swings. We don’t rely on brand names alone; we select mastic based on the application: standard water-based for most residential, solvent-based for exterior or buried applications, and intumescent where fire rating is required. The key specification is that it brushes on thick, cures to a flexible film, and won’t crack or peel when your attic hits 140°F in July. Call (877) 565-7296 if you want specifics for your job.
Yes. We seal and repair commercial duct systems for properties along Camp Creek Parkway and Virginia Avenue, including hotels, car rental facilities, and airport support businesses. These buildings run near-continuous occupancy, so we schedule around low-occupancy periods and work with your maintenance staff to minimize disruption. Commercial systems require larger-diameter access, different sealing compounds for kitchen exhaust vs. general HVAC, and often involve rooftop units that demand fall-protection protocols our crew is trained for. Call (877) 565-7296 to discuss your commercial property’s needs and scheduling.
Written by Scott Gray, Owner at Everest Air Duct Cleaning Service Georgia, serving College Park since 2004.