Duct Leakage Testing
A calibrated fan pressurizes the duct system while registers are sealed, measuring total leakage. That number shows whether sealing is worthwhile and gives a baseline for comparison afterward.
Indoor Air Quality and Ductwork
Roswell Duct Sealing
Duct sealing in Roswell, GA to reduce air leaks, improve airflow, and help lower energy waste. Leakage testing and mastic sealing. Call (770) 661-0066.
Roswell, Georgia
Duct Sealing in Roswell, GA
Leaky ductwork is one of the most common and least visible sources of wasted energy in a home. Gaps at joints, seams, and connections let cooled or heated air escape into attics and crawlspaces, while return leaks can pull in hot, humid, dusty air from those same spaces. Our duct sealing in Roswell service starts with testing to measure how much air your system is losing, then targets the leaks with fiber-reinforced mastic, approved foil tape, and gasketed connections. For hard-to-reach runs, we discuss options before recommending anything. In Roswell's humid climate, sealing return-side leaks also helps keep moisture-laden attic air out of the system, which supports better humidity control indoors. Homeowners usually notice steadier room temperatures, stronger airflow at registers, and a system that cycles less often after sealing is complete.
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Duct Sealing Services in Roswell
Mastic Joint Sealing
Fiber-reinforced mastic is brushed over seams, takeoffs, and transitions. Unlike cloth duct tape, it stays flexible and bonded through years of attic heat and seasonal temperature swings.
Return-Side Sealing
Leaks on the return side draw in attic dust, insulation fibers, and humid air. We pay close attention to return plenums, filter racks, platform returns, and panned joist cavities.
Plenum and Cabinet Seams
The connections where ducts meet the air handler or furnace are often the leakiest points in the system. We seal cabinet seams, plenum joints, and filter access openings.
Boot-to-Drywall Sealing
Gaps between register boots and ceilings or floors let air slip into wall and attic cavities. We seal these from the room side or the attic, whichever gives better access.
Post-Seal Verification
After sealing, we repeat the leakage test so you can see the measured improvement. If any section still leaks heavily, we address it before wrapping up the job.
Why Choose our Duct Sealing Experts in Roswell
Sealing done without testing is guesswork. Our technicians measure leakage before and after so you know the work made a real, quantifiable difference. We focus our effort on the joints that matter most, especially return-side leaks and air handler connections, rather than just taping whatever is easy to reach.
We use materials built to last in hot attics, not cloth duct tape that fails within a few seasons. We also look at the bigger picture: if a duct is crushed, disconnected, or undersized, sealing alone will not fix it, and we will tell you. Sealing pairs well with insulation upgrades and equipment replacements, and we can coordinate both. Many homeowners schedule sealing alongside a new system installation so the new equipment starts out with a tight, efficient duct network behind it.
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Duct Sealing Specialists Roswell: How We Work
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Step 01
Measure Leakage
We seal off registers, connect a duct testing fan, and record total system leakage. A visual inspection of accessible runs then helps us map where the biggest losses likely are.
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Step 02
Seal Priority Areas
Working from the air handler outward, we apply mastic and approved tape to plenums, trunk seams, takeoffs, boots, and return connections, giving extra attention to the leakiest areas.
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Step 03
Retest and Review
A second leakage test shows the improvement. We share before-and-after results, note any areas that were inaccessible, and recommend next steps such as insulation or filter upgrades.
FAQ
Duct Sealing FAQs
Answers to the questions Roswell customers ask us most. Still unsure? Call (770) 661-0066.
How much air do leaky ducts typically lose?
It varies widely from home to home, which is why we test rather than guess. Some systems are fairly tight, while others lose a significant share of their airflow through gaps at joints and connections. A duct leakage test gives you an actual measurement, so you can decide whether sealing is worth doing based on real numbers.
Is duct sealing worth it in Roswell's climate?
Often, yes, especially when ducts run through hot attics or humid crawlspaces. Leaks on the supply side waste cooled air, while leaks on the return side pull in hot, moist air that the AC then has to dehumidify. Sealing helps the system keep up on long summer days and can improve comfort in rooms that tend to lag behind.
What affects the cost of duct sealing?
The main factors are the size of the system, how much leakage testing reveals, and how accessible the ducts are in the attic, crawlspace, or walls. Systems with many joints or hard-to-reach runs take more labor. We test and inspect first, then give you an upfront quote that reflects the actual work needed.
How long does duct sealing take?
Most homes take part of a day to a full day, including testing before and after. Easily accessible systems go faster, while large homes or ducts in tight crawlspaces take longer. Your heating and cooling will be off for parts of the visit, so we coordinate timing to keep disruption reasonable.
Does duct sealing help with dust in the house?
It can. Return-side leaks pull dust, insulation fibers, and debris from attics and wall cavities into the system, which then spreads through the house. Sealing those leaks means more of your return air comes from the living space and passes through the filter. Combined with a well-fitted filter, many homeowners notice less dust settling on surfaces.
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