Duct Sealing
Gaps and loose joints send the air you paid to heat and cool straight into the attic. Sealing them puts it back in your rooms.
- Local since 1985
- Answered day or night
- Upfront pricing
Duct Sealing in Loganville, GA
Duct sealing closes the gaps, cracks, and loose connections in your ductwork, so the air you pay to heat and cool actually reaches your rooms instead of escaping into the attic or crawlspace. Keep Smiling Plumbing, Electric, Heating and Cooling has been helping Loganville homeowners stay comfortable since 1985, and duct sealing is one of the most cost-effective HVAC services we offer. We’ll find where your system is leaking, explain what sealing can realistically do for your comfort and energy bills, and give you a written price before we begin.
Book ServiceWhat Is Duct Sealing?
Ductwork is built from sections joined together at seams, elbows, and connections to your HVAC equipment and vents. Over the years, those joints loosen, old tape dries out and peels away, and flexible ducts can get crushed or pulled apart in the attic. According to ENERGY STAR, a typical duct system loses 20 to 30 percent of the air moving through it to leaks, holes, and poorly connected sections. Duct sealing fixes that by closing leaks with durable mastic sealant and foil tape, reconnecting sections that have come apart, and tightening the connections at registers and the air handler. The result is a system that delivers far more of its heating and cooling where you actually want it.
Signs Your Ducts Are Leaking
- Certain rooms never get as warm or cool as the rest of the house
- Weak airflow from some vents, even with a clean filter and open registers
- High energy bills that don’t match how much you’re running the system
- An attic or crawlspace that feels unusually hot or cold near the ductwork
- Extra dust in the home, especially in rooms near return vents
- Ducts that are visibly kinked, crushed, sagging, or disconnected
Current offerUp to $1,000 offany Daikin Fit heating and cooling system
Time for a new system? Ask about financing.
Complete heating and cooling systems with financing through our trusted partners — approval takes minutes, and the payment is one you can actually plan around.
View Options
What’s Included in Our Duct Sealing Service
Our team looks at your entire duct system so we seal the leaks that matter most, not just the ones that are easy to reach. Your service includes:
- An inspection of accessible ductwork in the attic, crawlspace, and mechanical areas
- Sealing seams, joints, and elbows with long-lasting mastic sealant and foil tape
- Reconnecting ducts that have separated or slipped off their fittings
- Sealing the connections at supply boots, registers, and return grilles
- Tightening and sealing the connections at the air handler and plenum
- An airflow check at the vents once the work is done to confirm the improvement
Benefits of Sealing Your Ductwork
When your ducts leak, your HVAC system is essentially heating and cooling your attic along with your home. Sealing those leaks puts that air back to work where it belongs. The rooms that used to feel stuffy or drafty start keeping up with the rest of the house, the system doesn’t have to run nearly as long to reach the thermostat setting, and your monthly bills start to reflect the difference. Here’s what changes once your ducts are sealed:
- More of the air you pay for reaches your living spaces, which can lower heating and cooling costs
- More even temperatures from room to room, so the back bedroom isn’t always the hot one
- Less dusty, humid, pollen-filled attic and crawlspace air pulled into your system and your home
- Shorter run times that reduce wear on your furnace, air conditioner, or heat pump
- Better performance from new equipment, which can only deliver its rated efficiency through tight ducts
Duct Sealing, Duct Cleaning, or Both?
Sealing and cleaning solve different problems, and it helps to know which one your home actually needs. Duct sealing fixes leaks that waste energy and pull dirty air into the system. Duct cleaning removes the buildup that’s already inside. Here’s a simple way to tell them apart:
- Uneven temperatures, weak airflow, or high bills usually point to leaks that need sealing
- Dust puffing from vents or visible buildup inside the ducts usually calls for a cleaning
- Heavy dust that keeps coming back soon after a cleaning often means leaky returns that need sealing too
In homes that need both, cleaning first and sealing second gives you the best and longest-lasting results. That way, you’re not sealing debris inside the system. Your technician will tell you which approach fits your home and explain why before recommending anything.
Book Service
Our Duct Sealing Process
- Schedule your visit online or by phone at a time that works for you.
- Your technician asks about comfort problems and high bills, then inspects your ductwork and HVAC connections.
- We show you where the leaks are, explain how much they’re likely affecting your system, and give you upfront, written pricing.
- With your approval, we seal joints and seams, reconnect loose sections, and tighten connections at the vents and equipment.
- We run the system and check airflow at the registers to confirm the improvement.
- We go over the results with you and point out anything else worth keeping an eye on, like insulation or filter issues.
Common Ductwork Problems in Loganville Homes
In many Loganville homes, the ductwork runs through attics that bake in the Georgia summer sun and crawlspaces that stay damp for much of the year. Those conditions are hard on duct connections and the materials holding them together, and problems often go unnoticed for years. Here’s what we find most often:
- Old cloth duct tape that has dried out, lost its grip, and fallen off the joints
- Flexible ducts that have sagged, kinked, or been crushed by storage or foot traffic in the attic
- Sections that separated after years of expansion and contraction in extreme attic heat
- Condensation forming on leaky supply ducts in humid crawlspaces
- Leaky return ducts that pull pollen, red clay dust, and hot attic air into the system
Duct Sealing in Neighborhoods Across Loganville
If there’s one room in your house that never quite feels right, leaky ducts are very often the reason. In established neighborhoods like Bay Creek and Haynes Creek, the ductwork has had plenty of years for tape to dry out and connections to work loose in the attic heat. Even newer homes can have ducts that were rushed during construction or bumped out of place afterward. Wherever you live in town, we’ll track down the leaks and help your system deliver the comfort it should. Here are some of the neighborhoods we serve:
- Bay Creek
- Haynes Creek
- Independence
- Windance Lake
- Tara Club Estates
- Brushy Fork
- Keep Smiling
- Bay Creek
- Independence
- Brushy Fork
Duct Sealing Costs and Financing
The cost of duct sealing depends on the size of your duct system, how many leaks we find, and how easy it is to reach the ductwork in your attic or crawlspace. Repairs to crushed or disconnected sections can also affect the final price. You’ll get a written quote before any work begins, so you know exactly what to expect. For larger HVAC projects, financing through Service Finance and Chowder is available. Keep Smiling Club members also get annual heating and cooling tune-ups and 10% off repairs.
Why Choose Keep Smiling for Duct Sealing in Loganville
Since 1985, Keep Smiling Plumbing, Electric, Heating and Cooling has helped Loganville homeowners get more comfort out of every dollar they spend on heating and cooling. Our HVAC technicians work under Georgia Conditioned Air License CN210975, and as a Bryant Factory Authorized Dealer, we know just how much tight ductwork matters to the equipment it serves. Every technician is background checked and drug screened before coming into your home. Our team was named Best of Gwinnett in 2025, and our Loganville base keeps us close to homes across Gwinnett and Walton counties.
Duct Sealing in Loganville FAQs
Why people keep calling Keep Smiling.
★★★★★“He was excellent. Very knowledgeable. Pleasant demeanor. He assessed the issue, got it fixed quickly.”
Rated 4.9 stars across 4,334+ Google reviews by neighbors across Northeast Atlanta. Reviews shown are representative of Keep Smiling’s Google profile.
Write a Review (opens in a new tab)Serving Northeast Atlanta, county to county.
10 counties, 54 cities, one crew that works the same way in all of them. A truck from us is a truck from us wherever you are.
- AlpharettaFulton County
- BufordGwinnett County
- DuluthGwinnett County
- DunwoodyDeKalb County
- GainesvilleHall County
- Johns CreekFulton County
- LawrencevilleGwinnett County
- LoganvilleGwinnett & Walton County
- MonroeWalton County
- Peachtree CornersGwinnett County
- SnellvilleGwinnett County
- SuwaneeGwinnett County
…and 42 more across Barrow, DeKalb, Forsyth, Fulton, Gwinnett, Hall, Jackson, Newton, Rockdale and Walton County.
Stop Paying to Cool Your Attic
Every leak in your ductwork sends air you paid for somewhere it doesn’t belong. Our team will find those leaks, seal them properly with materials built to last, and help your system deliver steady comfort to every room in your home. Schedule your duct sealing with Keep Smiling and start getting more out of every heating and cooling dollar.
(770) 273-9090