Serving Tampa Bay Since 1988
(813) 684-9919
In a typical home, 20 to 30 percent of the air moving through the ducts leaks out before it reaches a room. Aeroseal seals those leaks from the inside, in a single visit, with no demolition and a measured before-and-after report.
Most Tampa Bay homeowners have no idea their ductwork is leaking. ENERGY STAR estimates that 20 to 30 percent of the air moving through a typical duct system is lost to leaks, holes and poor connections. That is air you have already paid to cool, escaping into the attic before it reaches a vent. Aeroseal seals those leaks from the inside: sealant particles travel through the pressurized ducts and build up only where air is escaping. Sun Air Services is a certified Aeroseal contractor serving Tampa Bay.
Sealing duct leaks keeps cooled air inside the ducts and delivers it to your rooms, so your system runs less to hold the same temperature.
Aeroseal's computer-controlled system measures your duct leakage before and after, providing a printed certificate of improvement.
The sealant is injected under pressure and travels through your existing ductwork — no walls opened, no ceilings cut.
Most Tampa homes run their ductwork through the attic, and on a summer afternoon that attic can be well over 130 degrees. Every leak in a supply duct dumps air you paid to cool into the hottest space on the property.
Leaks on the return side are often worse. The return pulls air back to the system, so a gap there sucks hot, humid attic air straight into the air handler, along with insulation fibers and dust. Your AC then has to cool and dry that air too.
That is why leaky ducts show up here as more than a high bill. You get a house that feels sticky at 75 degrees, rooms at the end of a long duct run that never cool down, and dust that settles again a day after you clean.
Most of this damage is invisible. The leaks sit at seams, joints, boots and the plenum connection, often behind insulation or in parts of the attic nobody can reach. Taping what you can see rarely touches the leaks that matter.
Traditional duct sealing means crawling the attic with mastic and tape and sealing every joint you can reach. It works on accessible ductwork, but it misses whatever sits inside walls, under flooring or buried in insulation.
Aeroseal works from the inside. We block every register, isolate the air handler and coil so no sealant reaches the equipment, then pressurize the ducts and inject a fine mist of sealant. The particles stay in the airstream until they reach a leak, where escaping air carries them to the edge of the hole and they build up until it closes.
Because the same equipment measures leakage the whole time, you are not taking our word for the result. The system records how much air the ducts leaked before we started and how much they leak at the end, and you get that report when we finish.
Aeroseal seals holes up to about 5/8 of an inch. Anything larger, such as a disconnected run, a crushed flex duct or a torn boot, gets repaired by hand first. Our pre-seal inspection finds those, and we will tell you if repairs or a duct replacement make more sense than sealing.
The best candidates are homes with ducts in the attic, rooms that run hotter than the rest of the house, and cooling bills that seem high for the square footage. Older homes with original ductwork usually have the most to gain.
It is also worth doing before or alongside a new AC system. A new high-efficiency unit connected to leaky ducts loses much of the efficiency you paid for, and a sealed duct system can sometimes change the size of system the house actually needs.
Aeroseal is not duct cleaning, and it is not a fix for ductwork that is falling apart. If your ducts are dirty, we clean them first. If they are badly damaged, undersized or near the end of their life, replacing them is the better investment, and we will say so.
The leakage test settles the question. If your ducts test tight, we tell you that and you have spent nothing on sealing you did not need.
Most homes are sealed in a single visit. We start with the leakage test, make any hand repairs the inspection turns up, then block the registers and protect the equipment before sealing begins.
The sealing itself runs while the computer tracks leakage falling in real time. When the numbers level off, we run the final test, remove the blocks from the registers, restore the system and walk you through the before-and-after report.
Your AC is off while we work, so we schedule around the heat of the day where we can. Once we finish, the system goes straight back into normal use.
We pressurize your duct system and measure the exact cubic feet per minute of air escaping through leaks, establishing your baseline.
Registers and vents are temporarily blocked so the sealant is directed entirely to leak points within the duct walls.
Non-toxic, water-based sealant particles are injected under pressure. They travel through the ducts and adhere only where air is escaping — sealing every crack from the inside.
We run a final leakage test and provide a computer-generated certificate showing exactly how much leakage was sealed and your efficiency improvement.
Rooms that never reach the right temperature despite a functioning AC are a classic sign that conditioned air isn't arriving through the ductwork.
If your cooling costs are higher than neighbors with similar homes, leaky ducts forcing your system to work overtime are a likely cause.
Duct leaks pull unfiltered air from attics and crawl spaces into your living areas, loading your home with dust, allergens, and mold spores.
An AC that never seems to shut off often can't satisfy the thermostat because conditioned air is being lost before it reaches the rooms.
Most homes are done in a single visit. That includes the before test, any hand repairs, the sealing itself and the final test. Homes with more than one system or very long duct runs can take longer, and we will tell you up front.
The sealant is water-based and goes only inside the ducts, with every register blocked and the air handler isolated while we work. We are happy to share the manufacturer's safety information before you book.
No. Duct cleaning removes dust and debris from inside the ducts. Aeroseal closes the leaks that let attic air and dust in to begin with. If your ducts need cleaning, we do that first, then seal.
If leaks are starving that room of air, sealing usually helps a lot. If the cause is an undersized duct, a missing return or a disconnected run, sealing alone will not fix it. The leakage test and inspection tell us which one you have.
It depends on the size of the home, the number of systems and how much repair the inspection turns up. We give you a written price before any sealing starts. Call (813) 684-9919 to schedule a duct leakage test.
Yes. Sun Air Services is licensed under Florida HVAC contractor certification #CAC1820634, and all technicians are NATE-certified. We carry full liability and workers' compensation insurance on every job.
Same-day service available throughout the greater Tampa area.
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