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 Johns Creek
Duct repair and sealing in Johns Creek typically runs $280-$650 for most homes, with full-system resealing on large multi-zone properties reaching $900-$1,400. Most jobs are scheduled within three to five business days, and every visit starts with a written price before any panel comes off. Call (470) 326-1926 for a free estimate.
We serve Johns Creek from our Atlanta coordination office, with crews running daily routes through Medlock Bridge, St. Ives, and the Abbotts Bridge corridor. These neighborhoods share a common problem: homes built between 1988 and 2006 with 3,500-6,000 square feet of living space, two or three separate HVAC zones, and flexible ductwork that has spent two decades in 140°F+ attic heat. The tape and zip ties that secured those original connections were never designed to last that long. They haven’t.
Our Duct Repair & Sealing team treats Johns Creek as a distinct service territory, not a zip code on a broader Atlanta map. The housing stock here - large master-planned homes with extensive attic duct networks - produces repair patterns we don’t see in older, smaller suburbs. We know what to look for because we’ve photographed it hundreds of times.
Why CleanRun Air Duct Cleaning Johns Creek Is Johns Creek’s Preferred Duct Repair & Sealing Company
CleanRun has served the Johns Creek market since 2013, completing jobs with a written price before work starts and a Documented Photo Record delivered before the crew leaves. Every technician is background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews.
Our local reputation in Johns Creek is built on what we can show, not what we claim. The photo record from every job - inside every duct run, before and after - is included as a standard deliverable. Homeowners in this market research extensively before calling; we built our process for them. The 365-Day Done Right Promise is backed in writing on every job, not stated in marketing copy and forgotten.
Scheduling is coordinated from our Atlanta office, with crews dispatched to Johns Creek daily. Response time to most Johns Creek neighborhoods is three to five business days for standard repair and sealing work. We don’t manufacture urgency. Duct repair is a scheduled job, and we treat it that way.
Our Duct Repair & Sealing Services in Johns Creek
Duct Sealing
Duct sealing in Johns Creek addresses the connection failures that develop in large multi-zone systems after 20-40 years of attic heat. We seal supply boots, return plenums, and branch connections with mastic sealant - a fibrous compound that remains flexible at temperature extremes - rather than foil tape, which degrades in Georgia attic conditions. A typical duct sealing job in Johns Creek runs $280-$550 for partial-system work and $700-$1,100 for full-system resealing on homes with two or more zones. Every scope is photographed before work begins, and the sealed joints are photographed after.
Flex Duct Repair
Flex duct repair is the most common scope addition we encounter in Johns Creek. The inner liner of flexible ductwork - the plastic tube that actually carries air - collapses or tears after sustained exposure to 140°F+ attic temperatures. In neighborhoods like Medlock Bridge and St. Ives, we regularly find flex runs where the inner liner has detached from the metal collar at the register boot, blowing conditioned air into the attic instead of the bedroom. Flex duct repair in Johns Creek typically costs $180-$340 per run, depending on accessibility and whether the insulation jacket also requires replacement. We use professional-grade materials from Guardsman and Abatement Technologies.
Metal Duct Repair
Metal duct repair in Johns Creek is less common than flex work but critical when found. The galvanized steel trunk lines in some 1990s builds develop seam separations or rust-through at low points where condensation pools. We repair metal duct with sealed patch panels or section replacement, then re-insulate to prevent future condensation damage. Metal duct repair in Johns Creek runs $320-$580 per section. The camera inspection determines whether patching is viable or replacement is the more durable option.
Duct Insulation
Duct insulation replacement in Johns Creek addresses the degraded fiberglass jackets on flex runs that have lost their R-value after decades in hot attics. Poorly insulated ductwork forces HVAC equipment to run longer to deliver the same conditioned air, which homeowners notice as uneven temperatures between floors and higher utility bills. Re-insulating a single flex run in Johns Creek costs $140-$260; full-system re-insulation on a large home with multiple zones ranges $650-$1,200. We specify insulation rated for Georgia’s climate zone, installed with proper vapor barriers.
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 Johns Creek
CleanRun crews carry professional-grade equipment and materials from Rotobrush, Nikro, Abatement Technologies, and Guardsman - brands recognized in the HVAC trade and verifiable by any homeowner who wants to look them up. We stock mastic sealant, flex duct, and insulation materials sized for the large-system jobs common in Johns Creek, which means most repairs don’t wait on parts orders. When a St. Ives homeowner needs a boot resealed or a Medlock Bridge flex run replaced, the crew has what they need on the truck.
Common Duct Repair & Sealing Problems We See in Johns Creek Homes
- Taped connections that have dried and separated. The foil tape and zip ties used to secure flex duct in Johns Creek’s 1990s subdivisions were never rated for 140°F+ attic summers. After two decades, the adhesive has crystallized and the tape has peeled back from ceiling boots and air handler plenums. The leak is invisible from below until a camera inspection reveals conditioned air pouring into the attic.
- Compacted construction debris restricting airflow. Drywall dust and red Georgia clay from the original build settled into flex duct liners and compacted over years of airflow. The HVAC equipment was serviced regularly, but the ducts themselves were never cleaned, so the system never delivered rated capacity even when the air handler was running properly.
- Pollen and condensation creating mold layers inside flex runs. Johns Creek’s dense pine and hardwood canopy produces some of the highest localized spring pollen loads in metro Atlanta. When that pollen draws into return-air pathways and meets summer condensation inside attic-routed flex duct, the result is a mold-and-mildew layer that reseals leaks homeowner tape jobs were meant to fix - and creates new air quality problems.
- Collapsed inner liners in second-floor supplies. The longest flex runs - typically those serving second-floor registers in Johns Creek’s 4,000+ square foot homes - experience the most thermal stress. The inner liner collapses or detaches entirely, creating a complete blockage or a wide-open leak into the attic. Temperature complaints from the second floor are often the first symptom a homeowner notices.
Pricing for Duct Repair & Sealing in Johns Creek, GA
Honest pricing for Johns Creek’s market:
| Service | Typical Range |
|---|---|
| Single flex duct repair/replacement | $180 - $340 |
| Boot resealing with mastic (per connection) | $120 - $220 |
| Partial-system duct sealing | $280 - $550 |
| Full-system resealing (multi-zone home) | $700 - $1,100 |
| Metal duct section repair | $320 - $580 |
| Duct insulation replacement (per run) | $140 - $260 |
| Full-system re-insulation | $650 - $1,200 |
What moves a job toward the higher end: three-zone systems with 20+ individual runs, attic access limitations in homes with finished storage spaces, and the discovery of multiple disconnected boots requiring repair before cleaning can begin. What we don’t do: quote a low per-vent figure over the phone, then present a larger invoice once the truck is in the driveway. Haven Standard Clause 1 requires a written price before any work starts. Every time. No exceptions.
Call (470) 326-1926 for an exact quote. Estimates are free, and we provide a Free Second Opinion on any competitor’s written estimate.
We Also Serve Cities Near Johns Creek
CleanRun crews run regular routes through Johns Creek and the surrounding communities: Duluth to the west, Alpharetta to the north, Norcross to the south, and Suwanee to the northeast. The same large-home, multi-zone duct patterns appear across this corridor, and we apply the same inspection and documentation standards on every job.
Serving Johns Creek, GA - Our Local Coverage Area
We’re based in the Johns Creek 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 Johns Creek
Yes. The flex duct connections in mid-1990s Johns Creek homes were secured with tape and zip ties, not mastic, and 20-30 years of 140°F+ attic heat has degraded those connections regardless of whether the ducts were ever cleaned. We routinely find separated boots and collapsed inner liners in homes where the HVAC equipment was maintained but the ductwork was ignored. Call (470) 326-1926 for a camera inspection and written scope.
Because the camera inspection often reveals repair needs that change the job. In a 1998-built St. Ives home with three separate HVAC systems, our tech ran a camera inspection and found flex duct inner liners collapsed and a supply boot at a second-floor register completely pulled away from the ceiling collar - we sealed the boot with mastic, re-insulated the damaged run, and reconnected the zone before starting source removal. After sealing the leaking joints and running agitation tools with HEPA filtration under negative pressure, the homeowner noticed the second-floor bedrooms finally held temperature evenly for the first time in years. The scope conversation ensures the written price covers the actual condition of the system.
Mastic sealant is a thick, fibrous compound that remains flexible from -20°F to 250°F and bonds mechanically to duct surfaces, while foil duct tape adhesive crystallizes and fails within 3-5 years in Georgia attic heat. Store-bought tape on a Johns Creek attic duct is usually peeling or completely detached by the time we arrive. Mastic is the only material we use for sealing under Haven Standard Clause 4: Documented Methods.
Signs include: second-floor rooms that won’t hold temperature despite the air handler running constantly, utility bills that rose without explanation, or dust accumulation at ceiling registers that suggests air is being pulled from the attic instead of delivered from the system. The only definitive check is a camera inspection, which we perform as the first step of every duct service. Call (470) 326-1926 to schedule.
It matters directly. The dense pine and hardwood canopy in Johns Creek produces pollen loads that accumulate inside return-air pathways, then combine with summer condensation inside flex duct to create mold and mildew layers. That biological growth degrades the duct liner material and can reseal leaks that proper repair work was meant to close. We address both: repair the mechanical failures, then remove the accumulated pollen and debris that would otherwise continue degrading the system. The Documented Photo Record shows both conditions, before and after.
Ready to see what’s actually inside your Johns Creek ductwork? Call (470) 326-1926 for a free estimate. Every job starts with a written price, includes a Documented Photo Record of every duct run, and is backed by our 365-Day Done Right Promise. We also offer a Free Second Opinion on any written estimate from another company.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Johns Creek since 2013.