Duct sealing is the process of finding and closing air leaks in the duct system that carries conditioned air through your home. In Metro Atlanta, where summers push HVAC systems hard for months at a stretch, leaky ductwork is one of the most common reasons a system runs constantly, energy bills climb, and certain rooms never feel right no matter how far you turn the thermostat.
When ducts leak, conditioned air escapes into unconditioned spaces like attics, crawlspaces, and wall cavities before it ever reaches the room it was meant for. Your equipment compensates by running longer cycles. That means more wear on the system, more energy consumed, and less comfort delivered.
All Purpose Heating and Air Conditioning has been locally owned and working in Georgia homes for more than 35 years. We inspect, test, seal, and repair ductwork the right way, starting with finding where the problem actually is before we touch anything.
If your system seems to be working fine on paper but your home doesn’t feel like it, the ducts are worth a close look. An estimate costs you nothing and gives you real answers.
Most duct problems do not announce themselves loudly. They show up as patterns that are easy to dismiss until the energy bill arrives.
Rooms with weak or inconsistent airflow. If one bedroom gets cold while the living room stays warm, or a room never reaches the temperature on the thermostat, air is likely escaping before it reaches that register. The equipment is running. The air just isn’t getting there.
Dust that comes back fast after cleaning. Leaky return ducts pull air from attics and crawlspaces, along with whatever particles are floating in those spaces. If you are wiping down surfaces every few days and finding a fine gray film, that is a sign the air coming through your registers is picking up debris along the way.
High bills despite a newer or recently serviced system. A system that tests out fine at the unit but still runs long cycles is often losing conditioned air in transit. The equipment is not the problem. The delivery system is.
Visible gaps, disconnected sections, or crushed flex duct in the attic. Flex duct that has been kinked, compressed, or pulled apart at a joint is not delivering air efficiently. Sometimes it is delivering it directly into the attic. That is a straightforward waste of energy and money.
Left alone, each of these problems compounds. Leaks grow. Equipment cycles more. Comfort drops. Addressing ductwork early is almost always less involved than waiting until the system is straining to keep up.
We start with a full duct inspection before any work begins. That means walking the system, checking accessible runs in the attic or crawlspace, examining joints and connections, and looking at how the ductwork was originally installed. We want to understand the whole picture before we recommend anything.
Next comes leak testing. We pressurize the duct system and measure how much air is escaping and from where. This step matters because duct leaks are often in places you cannot see from a quick visual check. Testing gives us actual data, not guesses.
Once we know where the leaks are, we seal them with mastic. Mastic is a durable, paste-based sealant applied directly to joints, seams, and connections. It bonds well to sheet metal and flex duct and holds up over time in the temperature swings an attic sees in Georgia. Tape alone is not a long-term fix. Mastic is.
If sections of ductwork are damaged beyond sealing, we repair or replace those runs. A crushed flex duct section or a completely disconnected joint needs more than sealant.
After sealing, we balance airflow across the system. That means checking that each zone is receiving the volume of air it should be. If the supply and return sides are not balanced, you can have sealed ducts and still have uneven rooms.
Where attic ductwork lacks adequate insulation, we address that as well. Conditioned air moving through an uninsulated duct in a Georgia attic in July is losing temperature before it reaches the register.
All Purpose Heating and Air Conditioning serves homeowners throughout the Metro Atlanta area, including communities like Alpharetta, Conyers, Peachtree City, Newnan, and McDonough. Wherever you are in our service area, the ductwork challenges in Georgia homes tend to share common threads: attic heat, aging flex duct, and systems that have been running hard for years without anyone looking at what is behind the registers.
What varies from job to job is what drives the scope of the work. Accessibility is a real factor. Ductwork in a tight crawlspace takes more time to reach and inspect than an open attic with good clearance. The extent of the leaks matters too. A few failing joints at connections is a different job than a system with widespread deterioration across multiple runs. And if sections need to be replaced rather than sealed, that adds time and materials.
There is no single price for duct sealing because there is no single version of the problem. The right way to get a real number is to have someone look at your system. If your current system is struggling to keep up, it may also be worth reviewing whether the equipment itself needs attention. Our team handles air conditioning repair when the problem turns out to be at the unit, and we offer furnace repair when the heating side is involved. Ductwork problems and equipment problems sometimes overlap, and we look at both.
To get started, request your estimate and we will schedule a time to come out and take a look.
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