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 Sealing Across Norcross
Duct sealing in Norcross typically runs $350 – $850 for a whole-home system, with most jobs completed in a single visit. Our crews cover Norcross from the Historic Norcross district to the Jimmy Carter corridor, dispatching from our Atlanta office with equipment sized for everything from 1920s mill bungalows to newer Gwinnett subdivisions. Call (361) 326-5060 for a written estimate before any work starts.
We’ve worked the 30071 ZIP long enough to know that Norcross doesn’t have one kind of ductwork. A pre-1950 mill house off Holcomb Bridge Road can sit three blocks from a 1998 tract home on flex duct, and the sealing method for each is completely different. That split-era housing stock is why we diagnose by build date and block, not by city name. Our Duct Sealing team carries both mastic and clamp systems for galvanized trunks and mechanical sealers for modern flex runs. We serve Norcross with the understanding that a technician who treats a Historic Norcross gravity-furnace trunk like a suburban flex-duct job will miss the leaks entirely.
Why Hollis Air Duct Cleaning Is Norcross’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004, and our Norcross reputation rests on The Garrison Standard: arrive inside the quoted window, price in writing before touching equipment, finish by the book, leave the site clean. Norcross homeowners have seen enough crews who quote low and invoice high. We don’t operate that way. The price is written down before work starts, and it does not move at the door.
Our technicians are background-checked and uniformed, and our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues. When you schedule duct sealing in Norcross, you know who is walking into your home before they arrive. The 365-Day Done Right Promise covers every job in writing: if the seal fails within a year, we return and make it right at no charge, including a free second visit. That guarantee is backed by equipment from Rotobrush, Nikro, and Abatement Technologies, not hardware-store gear.
Duct Repair in Norcross
Duct Repair in Norcross means fixing the physical damage that makes sealing impossible: crushed flex duct from pest intrusion in vented attics, separated joints where shoulder-season condensation has degraded tape, and corroded boot connections in older homes. A typical duct repair in Norcross runs $200 – $500 for localized fixes and $600 – $1,200 for extensive trunk or manifold work. We always inspect with a camera before quoting, so the price reflects what we found, not what we guessed.
When Repair Precedes Sealing
Sealing a duct with a crushed or disconnected section is like caulking a broken pipe. Our Norcross jobs often start with repair: reattaching a flex duct that pulled free from its collar, replacing a rusted boot in a crawl space, or cutting out rodent-damaged attic runs. Once the duct is structurally sound, we seal. The homeowner gets one written price for both phases before we begin.
Historic Norcross Metal Trunk Repair
In the 30071 mill-village homes, we see original galvanized trunks that are sound structurally but leaking at every joint. Rather than replacing the entire run, we clamp and mastic-seal the seams. The metal lasts; the sealant fails. Our repair preserves the trunk and stops the leakage at the connection points where pressure loss is worst.
Air Duct Sealing in Norcross
Air Duct Sealing in Norcross closes the gaps and seams that bleed conditioned air into attics, crawl spaces, and wall cavities. A typical whole-home sealing job in Norcross costs $350 – $850, depending on system size, access, and whether the home has original metal trunks or modern flex duct. We use duct-sealing mastic on metal systems and mechanical clamps or aerosol-based sealant on flex runs, always verified with a pressure test before we leave.
Mastic Sealing for Older Metal Systems
In Historic Norcross homes with original unlined galvanized trunks, we brush on UL-181-rated mastic at every joint, boot, and register connection. Mastic stays flexible through thermal expansion, which matters in homes where coal-dust residue has accumulated over decades and tape adhesion is unreliable. We never tape over dust; we clean the seam first, then seal.
Mechanical Sealing for Flex-Duct Homes
For the 1990s-2000s Gwinnett subdivisions, we use mechanical clamps and reinforced tape at flex-duct collars, then seal the attic plenum and trunk connections with mastic. These systems run through vented attics where summer heat and winter moisture cycles degrade seals fast. We check for condensation damage and pest intrusion while we’re in the attic, because a sealed duct with a soaked outer liner will fail again.
Trusted Brands We Service in Norcross
Our Norcross crews carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies. Rotobrush rotary brush systems handle the mechanical cleaning that must precede sealing in dust-laden older systems. Nikro negative-air machines maintain containment during repair and sealing work, so debris doesn’t migrate into living spaces. For filtration upgrades tied to sealing jobs, we stock Honeywell, Aprilaire, and Guardsman products with fast turnaround from our Atlanta supply chain. We don’t show up with hardware-store tape and hope it holds. We match the tool to the duct era, and we verify the seal before we pack up.
Common Duct Sealing Problems We See in Norcross Homes
- Mastic applied over coal-dust residue in Historic Norcross trunks. Previous crews or DIY attempts often slapped foil tape or mastic onto decades of accumulated coal dust in pre-1950 mill homes. The seal looks fine in October and fails by March. We scrape and degrease the seam first, then apply fresh mastic that actually bonds to metal.
- Shared trunk chases in Norcross apartments and condos. Dense multifamily buildings along Jimmy Carter Boulevard and Peachtree Industrial often have supply trunks running through common chases. We can only seal what we can access, and we coordinate with building management or neighboring units when the chase is shared. Scheduling both sides prevents a seal on one unit from pressurizing leaks into the other.
- Condensation-soaked tape in vented attics. Shoulder-season humidity in Norcross, especially around March and October, causes attic flex duct to sweat. Standard foil tape loses adhesion when wet and peels before summer cooling season starts. We use mechanical clamps plus reinforced tape rated for moisture exposure, or switch to mastic where access allows.
- Dryer vents shared through multifamily stacks. Norcross condos and townhomes often have dryer exhaust running through a common wall stack. A leak in the stack pressurizes adjacent units and creates backdraft conditions. We inspect the full run with a camera and seal at accessible joints, coordinating with the HOA or management when the stack serves multiple units.
Pricing for Duct Sealing in Norcross, GA
A typical whole-home duct sealing in Norcross runs $350 – $850. Localized sealing of a single trunk line or problem zone runs $200 – $400. Extensive systems with multiple attic runs, crawl-space access, or historic metal trunk restoration can reach $900 – $1,400. What moves the price: system size, duct material (galvanized metal versus flex), access difficulty (crawl space, tight attic), and whether repair work must precede sealing.
We do not quote per-vent teaser prices that balloon once the van is on your drive. We give one flat price per system, agreed in writing before work starts. Every estimate is free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Norcross
Our crews work Norcross regularly and also cover Buford, Lawrenceville, Suwanee, and Grayson from the same dispatch point. Each job carries the same written price guarantee and 365-Day Done Right Promise, whether we’re sealing ducts in a Suwanee subdivision or a Buford ranch on a crawl space.
Serving Norcross, GA - Our Local Coverage Area
We’re based in the Norcross 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 About Duct Sealing in Norcross
Yes, when the metal is structurally sound. Our tech was sealing supply and return ducts in a 1920s mill bungalow off Holcomb Bridge Road in Historic Norcross, where the original unlined galvanized trunk ran through a coal-dust-caked floor register and leaked at every joint. After a camera inspection, we clamped and mastic-sealed the trunk seams and boot connections rather than swapping the run, since the metal was still sound. The homeowner’s second-floor registers went from barely-there airflow to a measurable pull within an hour. Call (361) 326-5060 if your Historic Norcross home has original trunks; we’ll inspect before quoting.
We can seal what we can access. In Norcross condos and apartments along Jimmy Carter and Peachtree Industrial corridors, shared trunk chases often require coordinating access with the neighboring unit or building management. We schedule both sides when possible and seal only the accessible portions of the system. If the chase itself is leaking, we document the condition for the HOA or property manager. Call (361) 326-5060 to discuss your building’s layout.
Norcross’s long spring, heavy with pine and oak pollen, loads return ducts with debris that must be cleaned before sealing. Sealing over pollen and dust creates a weak bond and traps organic material that feeds microbial growth. We clean first, seal second, and often recommend a filtration upgrade to Guardsman or Aprilaire media to reduce the seasonal load. The sealing lasts longer when the duct isn’t re-coating itself every March.
Dryer vent stacks in Norcross multifamily buildings can be inspected and sealed at accessible joints, but the full stack may require building management coordination. We camera the run to find disconnections or leaks, then seal what we can reach from your unit and report any chase-level damage to the HOA. A leaking dryer stack creates backdraft and moisture problems for every unit it serves. Call (361) 326-5060 for a camera inspection.
We verify every seal with a duct blaster or pressure pan test, depending on system type. For metal trunks in Historic Norcross homes, we pressurize the system and check for pressure drop across sealed joints. For flex-duct systems in newer subdivisions, we use a duct blaster to measure total leakage before and after sealing. The numbers are recorded on your invoice, and if the post-seal leakage exceeds industry standards, we re-work at no charge under the 365-Day Done Right Promise. Call (361) 326-5060 to schedule a test.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Norcross since 2004 as part of the Garrison Partners family.