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.
Fast, Reliable Duct Sealing Across Redan
Duct sealing in Redan typically runs $350 – $850 for a whole-home hard-ducted system, with most jobs completed in a single visit. If your 1970s – 1990s tract home on Redan’s older streets still has its original galvanized trunk and branch runs, you’re likely losing 20 – 30% of your conditioned air through joints that have worked loose over decades of Georgia heat cycles.
We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and we’ve been sealing ducts in DeKalb County since 2004. Our dispatch and scheduling run through our Atlanta office, but our crews serve Redan directly – we know the difference between a brick ranch off South Hairston Road and a two-story traditional near Phillips Road, and we know both likely have the same original hard-ducted systems that need a different approach than the flex-duct jobs common in newer suburbs. Calls are answered by a live person 24 hours a day at (361) 326-5060.
Why Hollis Air Duct Cleaning Is Redan’s Preferred Duct Sealing Company
Redan homeowners call us because we’ve earned a reputation for showing up inside the window, pricing in writing before we touch anything, and standing behind the work for a full year. Our 365-Day Done Right Promise means if a seal fails or airflow drops, we come back at no charge – including a free second visit. That’s not a slogan; it’s written on every job.
Our technicians are background-checked and uniformed, and they arrive with professional-grade equipment from Nikro and Abatement Technologies – the same negative-air machines and rotary brush systems commercial crews use, not hardware-store gear. We don’t send a salesman who disappears after the signature. The tech who inspects your ducts is the one who seals them.
Because Redan is unincorporated DeKalb County, there’s no municipal duct-cleaning permit to pull and no city inspection to wait on. That means we schedule around your availability and the actual condition of your system, not around bureaucratic delays. For Redan residents, that translates to faster turnaround from call to completion.
Duct Insulation in Redan
Duct Insulation in Redan is often the missing half of a sealing job. In this humid subtropical climate, sealing joints without insulating the runs leaves you with cold metal sweating in a 130-degree attic or a damp crawlspace – and that condensation feeds mold that blows right into your living space.
Most Redan homes built between 1970 and 1995 have original hard-ducted galvanized runs in both locations. The metal conducts heat and cold aggressively. In summer, your 55-degree supply air hits 95-degree attic air, and the temperature differential causes condensation on the duct exterior. In winter, the reverse happens in crawlspaces that stay damp year-round. Duct Insulation wraps those sealed runs in a thermal barrier, typically R-6 or R-8 fiberglass with a vapor barrier, so the conditioned air arrives at your registers at the temperature your thermostat intended.
We see this most often in the ranch and two-story traditional homes that dominate Redan’s 0.2 – 0.4 acre lots. The original builders insulated the attic floor, not the ducts. Forty years later, that decision costs homeowners in Redan hundreds in wasted energy and in mold remediation that could have been prevented.
When Insulation Follows Sealing
We recommend Duct Insulation after sealing on any Redan home with attic or crawlspace runs that show condensation staining. The mastic seal stops air loss; the insulation stops thermal loss and sweating. Doing one without the other is half a fix.
Cost for Insulation Work
Adding Duct Insulation to a sealing job in Redan typically adds $200 – $400 to the total, depending on linear footage and whether we need to navigate a tight crawlspace. We measure and price it before we start, in writing.
HVAC Duct Sealing in Redan
HVAC Duct Sealing in Redan means something different than it does in a 2020 subdivision with flex duct. Here, we’re working with rigid galvanized trunk and branch systems that have been expanding and contracting through 40 summers and winters. The joints – where trunk meets branch, where branches turn toward bedrooms – have worked loose. The original tape has dried and cracked. Red clay dust from unpaved shoulders and nearby construction has settled into those gaps, preventing new tape or mastic from bonding properly.
Our process starts with a camera inspection and source removal. We don’t seal over dirt. We use Nikro negative-air equipment to pull debris from the lines, then apply duct sealing mastic – a thick, fiber-reinforced compound that remains flexible – to every joint and seam. For larger gaps, we use mechanical fasteners plus mastic. The goal is a system that holds pressure, not a surface-level patch that fails when the next heat wave hits.
On a brick ranch off South Hairston Road, our tech ran a camera inspection and found red clay dust pulled from the unpaved shoulder had settled into separated joints along the original hard-ducted return trunk in the crawlspace. We sealed the trunk and branch connections with mastic, then wrapped the runs in Duct Insulation since that crawlspace stays damp through Georgia summers, and the homeowner’s register film and airflow complaints cleared within the week.
Pressure Testing After Sealing
We test static pressure before and after every HVAC Duct Sealing job in Redan. Over-sealing original rigid ductwork without this check can choke your blower motor and starve far bedrooms of airflow. The test takes ten minutes and protects your system.
Scheduling Without Permit Delays
Because Redan has no city government of its own, DeKalb County code applies uniformly and there are no municipal duct-cleaning permit rules to slow us down. We book based on your schedule and our crew availability, not around inspection windows.
Trusted Brands We Service in Redan
Our Redan crews carry professional-grade equipment and materials from Nikro, Honeywell, and Aprilaire – the same brands commercial HVAC contractors specify. We stock mastic, mechanical fasteners, and R-6 and R-8 insulation wrap on every van, so we’re not making a supply run while your system is open. For filtration upgrades after sealing, we source Honeywell and Aprilaire media filters sized to your return grille. That means faster turnaround and no “we’ll have to come back” delays that leave your ducts exposed.
Common Duct Sealing Problems We See in Redan Homes
- Mastic slapped over clay-dusted seams. We see this on older Redan homes where a previous crew or a DIY attempt sealed joints without cleaning them first. Red Georgia clay dust from unpaved shoulders prevents adhesion. The seal fails within a season. We remove the source first, always.
- Attic sealed, crawlspace ignored. Many Redan homes have hard-ducted runs in both locations. Sealing supply and return ducts in the attic but skipping the crawlspace leaves joints sweating and moldy where the humid subtropical ground keeps moisture constant. We inspect both zones.
- Over-sealing without airflow testing. Original 1980s ductwork was sized for a specific static pressure. Sealing every gap without verifying blower load can drop airflow to far-bedroom registers and overwork your HVAC equipment. We pressure-test before we leave.
- Neighbor’s construction dust coating the system. In Redan, new subdivision grading kicks up fine red clay that infiltrates older homes through loose joints. Homeowners notice a gray film on registers within weeks. Sealing stops the infiltration; cleaning removes what’s already inside.
Pricing for Duct Sealing in Redan, GA
A typical whole-home duct sealing job in Redan runs $350 – $850. Single-zone repairs start around $180. Adding Duct Insulation to sealed runs adds $200 – $400. What moves you within that range: the linear footage of ductwork, whether we need to access both attic and crawlspace, the condition of existing joints (clean separation versus rusted failure), and whether source cleaning is needed before mastic will bond.
We don’t quote per-vent or bait you with a teaser coupon that doubles once the van is in your drive. We inspect, we measure, we write the price down, and that number doesn’t move. Every Redan homeowner gets the same standard: written price before work starts, 365-Day Done Right Promise in writing after.
Call (361) 326-5060 for a free estimate. We’ll schedule a tech to inspect your system, explain what we find, and give you a number you can count on.
We Also Serve Cities Near Redan
Our crews cover Redan and the surrounding DeKalb and Rockdale County area, including Stone Mountain, Clarkston, Conyers, and Snellville. If you’re unsure whether your home falls in our service radius, call (361) 326-5060 and we’ll confirm before booking.
Serving Redan, GA - Our Local Coverage Area
We’re based in the Redan 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 Redan
Every 3 – 5 years for cleaning, with sealing inspected at the same interval. Homes on Redan’s unpaved shoulders or near active construction should lean toward the shorter end – the clay dust infiltration accelerates joint wear and prevents seal adhesion. Call (361) 326-5060 to schedule an inspection and we’ll tell you where your system stands.
No. Redan is an unincorporated community in DeKalb County with no city government of its own. DeKalb County code applies uniformly, and there are no municipal duct-cleaning permits to pull. That streamlines scheduling – we book based on your availability, not inspection windows.
It’s both a sealing and a cleaning problem. Construction grading on Redan’s red clay soil generates fine dust that infiltrates older homes through loose duct joints. The gray film on your registers is that dust exiting your supply lines. We clean the existing debris, then seal the joints to stop new infiltration. Most Redan homeowners see the film clear within a week of completion.
Yes. Most Redan homes from the 1970s – 1990s have hard-ducted runs in both locations, and we inspect and seal both in a single appointment. The typical job takes 4 – 6 hours. We pressure-test the complete system before we leave.
Not if it’s done with a static-pressure check. Original rigid ductwork in Redan homes was sized for a specific blower load. We test pressure before and after sealing to ensure we’re not choking airflow to far bedrooms. Over-sealing without this verification is a real risk – we don’t skip the test.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Redan and DeKalb County since 2004.




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