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.
Before
After
Before
After
Before
AfterFast, Reliable Duct Sealing Across Suwanee
If your upstairs bedrooms run hot while your downstairs stays comfortable, or your energy bills keep climbing despite a newer HVAC system, the problem is likely in your ducts, not your equipment. In Suwanee, we’ve found that homes built from the 1990s through the 2010s – which is most of the housing stock here – often have builder-grade flex duct that was never properly sealed or supported in the attic. Our crews are dispatched from the Atlanta office and serve Suwanee neighborhoods directly, arriving inside the quoted window with background-checked, uniformed technicians and a written price before any work starts. Call (361) 326-5060 for a free estimate.
Why Hollis Air Duct Cleaning Is Suwanee’s Preferred Duct Sealing Company
We’ve been part of the Garrison Partners family since 2004, and our Duct Sealing in Suwanee work has built a reputation on one thing: doing what we said we’d do. Suwanee homeowners aren’t looking for the lowest teaser price – they’ve seen how that ends. They’re looking for a crew that shows up uniformed, prices the job in writing before touching anything, and stands behind the work for a full year.
Our 365-Day Done Right Promise covers every duct sealing job in writing. If the seal fails or the airflow problem returns within a year, we come back at no charge, including a free second visit. No negotiation, no runaround.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday morning to schedule.
We know Suwanee’s subdivisions – the tight builds around Suwanee Creek, the two-story foyers off Old Peachtree Road, the flex-duct runs baking in unconditioned attics. That local knowledge means we diagnose faster and fix it right the first time.
Air Duct Sealing in Suwanee
Air Duct Sealing in Suwanee is most often needed in homes under 20 years old, which surprises people until they understand how these houses were built. The subdivisions that define Suwanee – from the 1990s developments near Suwanee Town Center to the 2000s builds along Suwanee Creek – were constructed with builder-grade flex duct routed through hot, humid attics. Over time, that flex sags between trusses, pinches at bends, and pulls away from plenums and registers. Conditioned air bleeds into spaces that don’t need cooling. Your AC runs longer. Your upstairs bedrooms never reach set temperature. And your filter clogs faster because the system is pulling attic air, dust, and pollen through gaps that should have been sealed at construction.
A typical Air Duct Sealing job in Suwanee runs $800 – $1,800 for a whole-system seal on a standard 2,000 – 3,500 square foot home. Larger homes with complex multi-level layouts, or jobs requiring re-routing of sagging flex before sealing, can reach $2,200 – $2,800. We price by the system, not by the vent, and the written quote is fixed before work begins.
What the Builder Should Have Done
The original builder should have pressure-tested the duct system, sealed all plenum joints with mastic and mesh (not foil tape), supported flex runs every four feet to prevent sagging, and verified balanced airflow to each room with a flow hood. In Suwanee, we rarely see this standard met in homes built before 2015. The result is a generation of houses that look new but breathe like they weren’t finished.
How We Verify the Fix
After sealing, we run a blower door test and flow hood measurement to confirm the system is delivering designed airflow to each register. We show you the before-and-after numbers. If the ductwork needs re-routing before it can hold a seal, we tell you that upfront and price it separately – no discovery charges once we’re in the attic.
Duct Sealing Services in Suwanee
Duct Sealing Services in Suwanee address a specific set of problems created by the area’s housing boom and its hot, humid climate. The flex-duct systems in Suwanee’s 1990s – 2010s subdivisions were built fast, installed in unconditioned attics, and rarely sealed to modern standards. Summer attic temperatures in Suwanee regularly exceed 130 degrees. That heat softens flex duct, causes sagging between supports, and degrades adhesive tapes that were never meant for the application. Meanwhile, Suwanee’s dense tree canopy and heavy spring pollen load mean that any leak in the return side pulls allergens directly into your living space.
Our Duct Sealing Services include full system inspection with camera-equipped scopes, removal of old tape and failed sealant, re-routing of pinched or sagging flex where needed, application of mastic-and-mesh seals at all joints and plenums, register boot sealing, and post-work verification with airflow measurement. A standard Duct Sealing Service in Suwanee runs $800 – $1,800; complex re-routing jobs on larger homes range $2,200 – $2,800.
Construction Dust Complicates Sealing
In Suwanee’s newer subdivisions, we regularly find drywall dust and joint-compound residue still sitting in supply and return ducts from original construction. This debris clogs filters, disguises leaks at registers, and prevents proper seal adhesion. We remove source contamination before sealing, or the seal won’t hold and your filter will fail prematurely.
Humidity and Condensation Damage
Suwanee’s humid summers cause condensation on poorly insulated attic duct. We’ve seen homeowners and handymen seal over wet surfaces with foil tape that loses adhesion within a season, trapping moisture and creating mold growth around the joint. We dry, insulate, and seal – in that order.
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.
Trusted Brands We Service in Suwanee
Our crews carry professional-grade equipment and materials on every Suwanee job: Rotobrush rotary brush systems for source removal when ducts need cleaning before sealing, Nikro negative-air machines for contained debris extraction, and sealing and filtration products from Aprilaire, Abatement Technologies, and Guardsman. We stock mastic, mesh, mechanical fasteners, and replacement flex in common diameters so we’re not running to a supply house halfway through your job. That means faster turnaround and a crew that finishes inside the quoted window. Every technician is background-checked, uniformed, and trained to The Garrison Standard – arrive inside the window, price in writing, complete the job by the book, leave the site clean.
Common Duct Sealing Problems We See in Suwanee Homes
- Builder-grade flex sagging in attic heat. In Suwanee’s 2000s-era subdivisions around Suwanee Creek and Old Peachtree Road, original flex duct softens in 130-degree attics and sags between trusses. The pinch point creates a permanent restriction; sealing over it wastes money because the duct needs re-routing first.
- Construction debris masking register leaks. Drywall dust and joint compound left in ducts from original build-out clogs filters and hides gaps where registers meet drywall. Homeowners replace filters monthly and still see dust – because the real problem is a leak that was never sealed.
- Foil tape failure on wet, humid surfaces. Suwanee’s summer humidity causes condensation on attic ductwork. Foil tape applied over moisture loses adhesion, the leak returns, and trapped moisture breeds mold around the joint. Proper sealing requires dry surfaces and mastic-and-mesh application.
- Hot upstairs bedrooms from airflow imbalance. The classic Suwanee complaint: downstairs is fine, upstairs never cools. This is rarely an undersized AC. It’s flex duct that has sagged, pinched, or pulled away from the plenum, starving the second floor of supply air while the thermostat downstairs reads satisfied.
Pricing for Duct Sealing in Suwanee, GA
We price duct sealing by the system, not by the vent, because per-vent pricing is where the bait-and-switch lives. A typical whole-system duct sealing in Suwanee runs $800 – $1,800 for homes between 2,000 and 3,500 square feet with standard flex-duct layouts. Larger homes with complex multi-level designs, or jobs requiring re-routing of sagging flex before sealing, range $2,200 – $2,800. What moves the price: accessibility of attic runs, amount of re-routing needed, whether source removal of construction debris is required before sealing, and if we’re also addressing insulation damage from condensation. We inspect, we quote in writing, and that number doesn’t move at the door. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Suwanee
Our Duct Sealing crews regularly work in Buford, Norcross, Duluth, and Lawrenceville – the same background-checked, uniformed technicians, the same written pricing, the same 365-Day Done Right Promise. Scheduling is coordinated from our Atlanta office, with local crews dispatched to each community.
Serving Suwanee, GA - Our Local Coverage Area
We’re based in the Suwanee 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 Suwanee
Because builder-grade flex duct in Suwanee’s rapid-build subdivisions was rarely sealed to modern standards at construction. The original crew likely used foil tape instead of mastic and mesh, skipped pressure testing, and left construction debris in the runs. We’ve sealed ducts in Suwanee homes less than 10 years old that were leaking 25 – 35% of conditioned air into the attic. Call (361) 326-5060 for a free inspection – we’ll show you exactly what the builder left unfinished.
This is the signature symptom of sagging or pinched flex duct in Suwanee’s unconditioned attics, not an undersized AC unit. In the 2000s-era subdivisions around Suwanee Creek and Old Peachtree Road, original flex runs soften in 130-degree attic heat, sag between trusses, and create permanent restrictions that starve second-floor registers. We verify this with camera inspection and flow hood measurement, then re-route and seal. Call (361) 326-5060 – replacement is rarely needed.
Not automatically – duct sealing and duct cleaning are separate operations, and we price them separately so you know exactly what you’re paying for. However, in Suwanee’s newer subdivisions, we often find that construction debris must be removed before a proper seal can be applied. If our camera inspection shows drywall dust or joint-compound residue blocking your supply or return ducts, we’ll quote source removal with our Rotobrush and Nikro equipment as a prerequisite to sealing. Call (361) 326-5060 and we’ll inspect first.
Yes, but in different ways. Sealing return-side leaks prevents Suwanee’s heavy spring pollen from being pulled through gaps in your ductwork and distributed throughout the house. For humidity, sealing supply-side leaks reduces the load on your AC, allowing it to dehumidify more effectively. However, if your attic duct has condensation damage, sealing alone won’t solve it – we also need to address insulation and airflow. Call (361) 326-5060 and we’ll diagnose which problem you actually have.
Yes, on every job. We run a camera-equipped scope through your trunk lines and branch runs to document sagging, pinch points, debris accumulation, and failed seals from previous work. In a Suwanee Creek subdivision home built in 2004, our tech ran a camera inspection on the second-floor trunk and found builder-grade flex sagging against the roof decking, with visible gaps at the plenum where conditioned air was bleeding straight into a 130-degree attic. We re-routed and sealed the runs, then verified with a blower door and flow hood that the two back bedrooms were finally getting balanced supply air – the homeowner had assumed the whole system needed replacing. Call (361) 326-5060 to schedule your inspection.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Suwanee since 2004.