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 Sandy Springs
Duct repair and sealing in Sandy Springs typically runs $280-$680 for most homes, with flex duct repair and mastic sealing on multi-zone systems landing in the middle of that range. We dispatch to Sandy Springs from our Atlanta office, and crews are usually on-site within scheduled windows that respect your time rather than keeping you waiting. If you’re in Riverside, Hammond Hills, or off Roswell Road near the Chattahoochee, you’re inside our standard Sandy Springs service territory.
Call (470) 516-9337 for a free written estimate. We bring a price on paper before any panel comes off.
Why CleanRun Air Duct Cleaning Marietta Is Sandy Springs’s Preferred Duct Repair & Sealing Company
We’ve worked in Sandy Springs long enough to know what hides in those attics. The 3,500-5,500 sq ft colonials and traditional homes built during the 1970s-1990s northern Atlanta boom weren’t designed for today’s cooling loads, and their original flex ductwork has been cooking in 130°F attic heat for decades. That specific history matters when you’re diagnosing why the upstairs never cools or why the air smells musty every June.
Our crews have served Sandy Springs since we opened in 2013, and every job starts with a written price under Haven Standard Clause 1. No “call for a quote.” No per-vent bait-and-switch. The price we write is the price you pay. We back it with the 365-Day Done Right Promise, also in writing, on every Sandy Springs job.
Technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. You’ll get a name before arrival, a photo record of every duct run before and after, and a scope of work you can hold in your hand. That’s the H.A.V.E.N. Standard. It’s how we’ve operated since day one.
Our Duct Repair & Sealing Services in Sandy Springs
Flex Duct Repair
This is the work we do most in Sandy Springs. The original fiberglass-lined flex duct in those 1970s-1980s attics has been heat-cycled past 130°F for forty-plus summers. The inner liner flakes and sheds into your air supply. Joints separate. Runs partially collapse. On a Riverside Drive corridor home near the Chattahoochee, our tech pulled registers on a 1978 colonial and found the attic flex runs had separated at three joints, with the system pulling humidity-laden attic air straight into the living space. We reconnected the runs, sealed the collars with mastic, and wrapped the exposed flex with new insulation before running source removal and HEPA filtration on the supply and return ducts. The homeowner’s upstairs rooms stopped smelling musty within a week. Flex duct repair in Sandy Springs typically runs $320-$580 depending on linear feet and accessibility.
Mastic Sealant Application
Metal tape fails in Sandy Springs attics. The adhesive degrades in sustained heat, and the tape peels back after a few seasons. We seal collars, plenums (the distribution boxes that split air to each duct run), and boots with mastic, a fiber-reinforced sealant that remains flexible and airtight across temperature swings. Mastic sealing is standard on every flex duct repair we perform in Sandy Springs, and we also offer it as standalone service for systems that are structurally sound but leaking at joints. A full mastic seal on a multi-zone Sandy Springs home runs $280-$450.
Metal Duct Repair
Some Sandy Springs homes, particularly those with later additions or custom builds off Glenridge Drive, have galvanized metal trunk lines with stamped branch takeoffs. These can corrode at seams, separate at drive cleats, or whistle from pressure imbalances when flex downstream has collapsed. We repair metal duct with proper sheet-metal techniques, seal with mastic, and reinsulate where the original wrap has degraded. Metal duct repair in Sandy Springs starts around $340 and can reach $680 for extensive trunk-line work.
Duct Insulation
Unconditioned Sandy Springs attics are brutal on duct insulation. The original R-4 or R-6 flex wrap compresses, tears, or simply falls away after decades of thermal cycling. Bare duct in a 130°F attic loses 15-25% of its cooling capacity before the air ever reaches your register (the vent cover in each room). We rewrap with new insulation rated for the application, paying particular attention to exposed flex and metal trunk lines in the hottest attic zones. Duct insulation in Sandy Springs runs $180-$420 depending on linear feet and whether we’re accessing through existing openings or cutting new.
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 Sandy Springs
Our equipment roster includes Rotobrush, Nikro, and Abatement Technologies - professional-grade tools you can look up independently before agreeing to any work. We don’t send a shop vac and a prayer. For sealing and repair, we stock mastic, mechanical fasteners, and insulation from Guardsman and other trade-recognized suppliers. Parts availability means Sandy Springs jobs don’t sit waiting for a shipment. We diagnose, quote in writing, and execute.
Common Duct Repair & Sealing Problems We See in Sandy Springs Homes
- Heat-collapsed flex joints in original 1970s-1980s ductwork. The inner liner of fiberglass-lined flex duct degrades after decades above 130°F. It doesn’t just get dirty. It flakes into the airstream, and the wire helix can kink or collapse entirely, blocking airflow to entire zones.
- Separated joints pulling attic air into the system. Along the Riverside Drive corridor and in older subdivisions off Hammond Drive, we regularly find flex joints that have worked loose from thermal expansion cycles. The air handler draws unconditioned, humidity-laden attic air directly into living spaces. Your energy bills climb. Your rooms smell like a crawlspace.
- Oversized multi-zone systems with undetected leaks at collars and boots. These 3,500-5,500 sq ft Sandy Springs homes have so many linear feet of duct and so many supply and return registers that small leaks at every connection point add up to significant airflow loss. Without a camera inspection, you’d never know.
- Microbial growth accelerated by Sandy Springs humidity. From April through October, relative humidity stays elevated and HVAC systems run continuously. Prolonged moisture inside ductwork promotes mold and microbial colonization, particularly in flex duct where the fiberglass liner provides a substrate. The western edge along the Chattahoochee River corridor sees this even more acutely.
Pricing for Duct Repair & Sealing in Sandy Springs, GA
Here’s what duct repair and sealing costs in the Sandy Springs market, based on jobs we’ve completed in neighborhoods from Riverside to Hammond Hills to the Glenridge corridor:
| Service | Typical Range in Sandy Springs |
|---|---|
| Mastic sealant (full system, single zone) | $280-$380 |
| Mastic sealant (multi-zone, 3,500+ sq ft) | $380-$450 |
| Flex duct repair (partial run, 1-2 joints) | $320-$480 |
| Flex duct repair (extensive, multiple runs) | $480-$580 |
| Metal duct repair (seam/cleat, limited) | $340-$420 |
| Metal duct repair (trunk line, extensive) | $420-$680 |
| Duct insulation (re-wrap, partial) | $180-$320 |
| Duct insulation (full system) | $320-$420 |
These are whole-system prices, not per-vent teases. What drives cost: linear feet of duct, attic accessibility, whether we’re repairing or replacing runs, and whether the job reveals additional separation points once we open the system. We photograph everything. You see what we see before we write the final scope.
Every Sandy Springs estimate is free. We bring a written price to your door. No work starts until you have that number in hand.
We Also Serve Cities Near Sandy Springs
Our crews run regular routes to Sandy Springs, Marietta, Smyrna, Kennesaw, and Woodstock from our Atlanta office. Same written pricing, same photo documentation, same H.A.V.E.N. Standard applies in every city. If you’re in Dunwoody or Brookhaven and found this page, you’re likely in range too - call and we’ll confirm.
Serving Sandy Springs, GA - Our Local Coverage Area
We’re based in the Sandy Springs 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 Sandy Springs
Because Sandy Springs’s 1970s-1990s executive homes run 3,500-5,500 sq ft of multi-zone flex duct through attics that push past 130°F every Georgia summer, the failure we find most is not dirt but separated and heat-collapsed flex joints - a problem that barely exists a generation of housing younger in Alpharetta or Johns Creek. The original fiberglass-lined flex was never designed for that thermal load over four decades. Newer suburbs use different materials and smaller, more efficient duct layouts. Call (470) 516-9337 for a free inspection if your home fits this profile.
We find separated joints, collapsed flex, flaked liner material, and in spring, compacted pine pollen that has worked deep into the duct lining. The camera doesn’t lie. On a typical Sandy Springs job, we’ll photograph 3-5 structural issues that the homeowner had no way to detect from the living space. That’s why we include the photo record as standard - so you can see the difference between a system that needs cleaning and one that needs repair. Call (470) 516-9337 and we’ll show you what your ducts look like inside.
Yes. Sandy Springs’s humid subtropical climate keeps relative humidity elevated from April through October, and the western edge along the Chattahoochee River corridor adds localized moisture influence. Unsealed ducts draw that humidity-laden attic air directly into your system, overworking your AC and creating conditions for microbial growth inside the ductwork. Proper mastic sealing is not optional here if you want the system to perform as designed. Call (470) 516-9337 for a sealing assessment.
Atlanta’s spring pine pollen season - visible as yellow coatings on every outdoor surface - loads return-air grilles and duct interiors with fine particulates that compact into the duct lining over time. In Sandy Springs’s older homes with decades of accumulation, this adds a significant debris load that restricts airflow and provides a nutrient base for microbial growth when humidity rises. We remove this material with negative-pressure extraction (suction that pulls debris out while preventing it from entering your home) and HEPA filtration, then seal the system to prevent recontamination. Call (470) 516-9337 for pre-season service.
More linear feet, more registers, more joints to inspect and seal. A 4,500 sq ft colonial off Roswell Road might have 12-16 supply registers and 4-6 return points across two or three zones, with flex runs spanning two stories through unconditioned attic space. We inspect every run with a camera, photograph each joint and boot, repair or replace damaged flex, seal all collars with mastic, re-insulate where needed, and run source removal on the entire system. Job time runs longer than typical metro Atlanta work. The written price reflects the actual scope, not a square-foot guess. Call (470) 516-9337 for an exact quote.
Ready to see what’s inside your ducts? Call (470) 516-9337 for a free written estimate. Our Duct Repair & Sealing team will inspect your system, photograph every run, and deliver a price on paper before any work begins. That’s Haven Standard Clause 1. That’s how we’ve operated since 2013. And every job is backed by our 365-Day Done Right Promise, in writing, with your signature on it.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Sandy Springs since 2013.