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-$680 for most residential jobs, with flex duct replacement in unconditioned attics toward the higher end and targeted mastic sealing toward the lower. We dispatch crews to Johns Creek from our Atlanta coordination office, and most appointments are scheduled within 2-4 business days. Call (678) 904-9744 for a written estimate before any work starts.
We’ve been working in Johns Creek since 2013, and the pattern is consistent: large homes, complex multi-zone systems, and ductwork that takes a beating from attic heat. The subdivisions off Old Milton Parkway and Turner McDonald Parkway are full of 3,000-5,000 square foot houses with long flex-duct runs through unconditioned attic spaces. That environment matters. In summer, those attics hit 140°F. In winter, they drop below freezing. The expansion and contraction cycles degrade duct joints, separate mastic seals, and eventually pull attic air directly into the system your family breathes.
Why CleanRun Air Duct Cleaning Sandy Springs Is Johns Creek’s Preferred Duct Repair & Sealing Company
Our Duct Repair & Sealing team has completed thousands of jobs across north metro Atlanta, and Johns Creek represents a distinct share of our workload. The housing stock here - concentrated in planned communities built during the 1985-2005 developer boom - creates predictable, addressable problems we’ve documented extensively.
Every job we complete in Johns Creek includes a written price before work begins, per Haven Standard Clause 1. No exceptions. Our technicians are background-checked and uniformed, operating under Haven Standard Clause 3: Verified Crews. We publish our license number on every page, not buried in a footer. The equipment we bring to Johns Creek homes includes Rotobrush agitation systems, Nikro negative-pressure extractors, and Guardsman sealants - brands you can verify independently.
The 365-Day Done Right Promise applies to every Johns Creek job in writing. If the work isn’t right, we make it right. Not a policy subject to manager approval. A written guarantee, delivered with the invoice.
Our documented photo record - before and after images of every duct run - is standard on every visit. In Johns Creek, where homeowners routinely invest in kitchen and bath renovations that push construction debris into return-air plenums, this documentation often reveals problems the homeowner didn’t know existed.
Our Duct Repair & Sealing Services in Johns Creek
Duct Sealing
Most Johns Creek homes lose 20-30% of conditioned air through leaks in the duct system. We seal joints, plenum connections, and register boots with mastic sealant and fiberglass mesh reinforcement, not duct tape. The result is measured: we take static pressure readings before and after, so you see the difference in numbers, not promises. A typical duct sealing job in Johns Creek runs $280-$450 for a single-zone system, $480-$680 for multi-zone homes common in neighborhoods like Amhurst and Carriage Gate.
Flex Duct Repair
Flex duct in Johns Creek attics degrades predictably. The plastic liner becomes brittle after years of heat cycling. The fiberglass insulation compacts. The inner liner tears at elbows and support points. We replace damaged sections with new, properly sized flex duct, secure it with tension straps at code-required intervals, and seal all connections with mastic. Flex duct repair in Johns Creek typically costs $180-$340 per run, depending on attic accessibility and length. Homes near the Chattahoochee River corridor - Jones Bridge Landing, Riverfield - often need more extensive flex work due to humidity-driven condensation damage at mid-run joints.
Metal Duct Repair
Older Johns Creek homes and custom builds sometimes feature galvanized steel ductwork. We repair separated seams, replace rusted sections, and reinforce weak supports. Metal duct repair requires different techniques than flex - we use sheet metal screws, foil tape rated for high temperature, and high-velocity mastic application. Jobs range $320-$580 depending on accessibility and extent of corrosion.
Air Leak Repair
Air leaks in Johns Creek homes concentrate at specific failure points: plenum connections that vibrate loose, register boots pulled away from drywall during settling, and access panels never properly sealed after filter changes. We pressurize the system, identify leaks with smoke pencils and thermal imaging, then repair each one with appropriate materials. Most air leak repair jobs in Johns Creek fall between $250-$420.
Duct Insulation
When flex duct insulation has degraded but the inner liner remains intact, we sometimes recommend insulation wrap rather than full replacement. This is cost-effective for Johns Creek homeowners with localized damage. Typical range: $200-$380 per run.
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
Our equipment roster includes professional-grade tools from manufacturers recognized across the HVAC trade: Rotobrush brush-and-vac systems for mechanical agitation inside duct runs, Nikro portable negative-air machines for containment during repair work, and Guardsman sealants rated for residential duct applications. We also specify Aprilaire media air cleaners and Abatement Technologies HEPA filtration when duct repair reveals contamination that requires follow-up air quality work. These aren’t proprietary labels - you can look up specifications and compare them to what other Johns Creek contractors carry. We name them because Haven Standard Clause 1 requires transparency about what you’re paying for.
Common Duct Repair & Sealing Problems We See in Johns Creek Homes
- Construction debris in newer homes. In Johns Creek’s post-2000 planned communities like Avala and North River Crossing, flex ducts often run through sealed, unconditioned attic chases that can hit 140°F, baking construction dust and drywall debris into the duct liner for years. This is a new-build problem that differs from the aging-duct issues in older metro suburbs.
- Humidity-driven mold in river-adjacent neighborhoods. Homes near Jones Bridge County Park and the Chattahoochee corridor - Riverfield, Jones Bridge Landing - sit in a measurably more humid microclimate shaped by the Eastern Continental Divide ridge. Technicians servicing these areas routinely pull flex-duct sections with visible microbial growth at mid-run joints, a pattern almost never seen in comparable-age homes just two miles west toward Old Milton Parkway.
- Multi-zone cross-contamination. The large colonial and traditional-style homes common in Amberfield, Rogers Mill, and Scotts Mill feature complex zoned systems. When duct board plenums aren’t properly sealed at installation, air leaks between zones, causing the master bedroom to overcool while the kitchen stays warm. The homeowner calls for HVAC service; the real problem is duct leakage.
- Renovation debris infiltration. Johns Creek’s affluent homeowner cohort is deep into kitchen-and-bath renovation cycles. Dust from tile cutting, drywall sanding, and demolition travels directly into return-air plenums when contractors don’t seal registers during work. We’ve found blower motors clogged with drywall compound in homes less than five years old.
Pricing for Duct Repair & Sealing in Johns Creek, GA
| Service | Typical Range in Johns Creek |
|---|---|
| Targeted mastic sealing (single zone) | $280-$450 |
| Multi-zone duct sealing | $480-$680 |
| Flex duct repair / replacement (per run) | $180-$340 |
| Metal duct repair | $320-$580 |
| Air leak detection and repair | $250-$420 |
| Duct insulation wrap (per run) | $200-$380 |
These ranges reflect what we actually quote on Johns Creek jobs. Three factors move a project up or down: attic accessibility (blown insulation versus walkable decking), number of zones, and whether we find secondary damage - mold, collapsed sections, or pest intrusion - once the camera goes in. Every quote is written and delivered before work starts. No per-vent pricing. No coupon bait. If you have a competitor’s written estimate, we provide a free second opinion, our number next to theirs.
We recently serviced a home in the Avala neighborhood off State Bridge Road where the owners had moved in three years prior but never had the ducts cleaned. Our camera inspection found drywall dust and construction debris caked along the supply and return ducts, restricting airflow and causing uneven cooling. After a source removal cleaning with HEPA filtration and agitation tools, we sealed several leaking joints with mastic sealant, and the system’s static pressure dropped noticeably, restoring comfort to the upstairs bedrooms.
We Also Serve Cities Near Johns Creek
Our crews work throughout north metro Atlanta. If you’re in Johns Creek or nearby - Sandy Springs, Roswell, Norcross, or Smyrna - the same scheduling, pricing, and documentation standards apply. Dispatch is coordinated from our Atlanta office, with local crews assigned by ZIP code to minimize drive time.
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, and possibly more urgently than an older home. Post-2000 Johns Creek builds, especially in planned communities like Avala and North River Crossing, often have construction debris baked into flex duct liners by years of attic heat cycling. The 140°F temperatures in those sealed attic chases fuse drywall dust to the duct interior. We recommend inspection at the 3-5 year mark for any home built 2000 or later in Johns Creek. Call (678) 904-9744 for a camera inspection - estimates are free.
Avala’s homes feature long flex-duct runs through unconditioned attic chases that concentrate heat and trap construction debris from the original build. The sealed chase design prevents natural ventilation, so dust and drywall particulate remain in the system rather than dissipating. Combined with the large square footage typical of Avala properties - often 4,000+ square feet - the system moves more air volume, circulating more debris. We address this with source removal cleaning followed by mastic sealing at all accessible joints. Call (678) 904-9744 for an exact quote.
Yes. Most Johns Creek homes lose 20-30% of conditioned air through duct leaks, according to Department of Energy estimates that match our field measurements. In a 4,000 square foot home with multi-zone cooling, that translates to hundreds of dollars per cooling season. We measure static pressure before and after sealing, so you see the improvement in data, not promises. The payback period in Johns Creek’s climate - long, hot summers - is typically 2-4 years. Call (678) 904-9744 for a written estimate.
Duct cleaning removes contaminants - dust, debris, microbial growth - from inside the ductwork. Duct repair fixes the physical integrity of the system: separated joints, torn flex duct, corroded metal, failed insulation. In Johns Creek, we often find both conditions together. Construction debris causes blockages (cleaning issue), while attic heat cycling degrades the ducts themselves (repair issue). Our assessments evaluate both, and we quote separately so you choose what to address. Call (678) 904-9744 for a camera inspection that shows you both conditions.
For most Johns Creek homes, every 3-5 years is appropriate. Homes in river-adjacent neighborhoods like Riverfield and Jones Bridge Landing - where humidity promotes faster microbial growth - may need more frequent inspection. Homes with recent renovations, new pets, or occupants with respiratory sensitivity should also shorten the interval. The 365-Day Done Right Promise covers our work, and the documented photo record lets you compare conditions over time. Call (678) 904-9744 to schedule.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Johns Creek since 2013.