You’re thinking about sealing your leaky ductwork, and someone recommends Aeroseal duct sealant. It sounds great—less energy waste, better airflow, fewer cold or hot spots. But then a thought hits you: Wait… what exactly is this stuff they’re spraying into my air system? And is it safe to breathe?
At One Hour Heating and Air, we get this question a lot. You’re right to ask. We believe in straight answers, no smoke and mirrors. So let’s clear the air—literally.
So, What Is Aeroseal?
Aeroseal is a patented duct sealing process that works from the inside. Instead of pulling ductwork apart piece by piece to manually patch leaks, we use a computer-controlled system to inject a fine, fog-like mist of sealant into your duct system. As the air flows, the particles stick to the edges of leaks and build up until they block the gaps completely. It’s like patching holes in a bucket while the water’s still running.
We’re talking about sealing leaks as small as a pinhole or as wide as a nickel. The sealant itself is water-based, non-toxic, and quick-drying. It works inside the ducts—out of sight, out of mind—and it doesn’t coat the whole duct. It only sticks where there’s a leak.
Is Aeroseal Safe to Breathe?
Now for the big question. Yes, Aeroseal is safe—but there’s a process we follow to keep it that way. During application, we seal off your vents and isolate your duct system. This means the fog doesn’t flow into your living spaces. It stays inside the ducts where it belongs. And while the sealing is happening, we ask that people and pets step out of the house or stay in a separate area for a few hours—just like you would during fumigation or carpet cleaning.
The sealant has been tested under rigorous standards. It’s UL listed, has low VOCs (Volatile Organic Compounds), and meets safety guidelines set by the EPA and OSHA. It’s also been used in schools, hospitals, government buildings, and homes across the country. If it wasn’t safe, we wouldn’t touch it.
The smell during sealing is faint—some describe it as similar to Elmer’s glue—and it fades quickly. Once the job’s done, your home airs out fast, and the ducts stay sealed without any chemical residue in your living spaces.
When to Call a Professional for Aeroseal
If your ductwork is leaking, you’re probably losing more air than you realize. Sealing it properly improves comfort, lowers your energy bills, and helps your system last longer.
Here’s when you should give us a call:
- Your HVAC system runs constantly and still doesn’t heat or cool evenly
- You see higher-than-normal energy bills without a change in usage
- Rooms feel stuffy, drafty, or uncomfortable no matter the thermostat setting
- You hear whistling or air movement behind walls or ceilings
- You’ve had recent construction or remodeling, which may have compromised ducts
- Your ducts are in crawlspaces, attics, or walls—areas hard to reach by hand
If any of these hit home, Aeroseal might be your solution. We’ll run a test and show you just how much air your system is losing—and how much you could save.
What We Do—Step by Step
Here’s how the Aeroseal process goes when we handle it:
1. System Prep
We block off all vents and returns, making sure no sealant reaches your living space. Your HVAC system gets temporarily disabled while we isolate the ducts.
2. Pre-Test
We pressurize the ducts and run a test that shows exactly how much air is leaking and where. You’ll see numbers, not guesses.
3. Sealing Begins
The Aeroseal machine introduces the fog into your sealed duct system. It flows through, finds the leaks, and seals them shut. All automatically controlled and measured.
4. Post-Test
We recheck the system. You get a detailed report showing how much tighter your ducts are—and how much air you’re now keeping inside your home.
5. Ventilation and Wrap-Up
We air out your system and living space. By the time we’re done, your ducts are sealed, your airflow is stronger, and your house smells like nothing happened at all.
Fixed right or you don’t pay. That’s our promise.
FAQ
Can I stay in the house while Aeroseal is being applied?
It’s best to step out or stay in an isolated room while the sealing is going on. Once the process is complete, the air clears quickly, and you’re good to return.
Is the smell strong or long-lasting?
The odor is mild and similar to school glue. It disappears within a few hours after sealing is finished.
How long does the sealant last?
It’s designed to last over 10 years. The seal doesn’t break down with temperature swings or airflow.
Is it safe for kids and pets?
Yes, once the process is complete and the area is aired out, it’s completely safe. We still recommend keeping pets and children away during sealing, just to be safe.
Will the sealant coat the whole duct?
Nope. It only sticks to leaks. Your ducts stay clean inside, and your airflow stays strong.
Why We Trust Aeroseal—and Why You Can Too
We wouldn’t use anything we wouldn’t install in our own homes. Aeroseal works, it’s safe, and it delivers real results you can feel in every room. If your home struggles with uneven heating, dusty vents, or rising energy bills, we’re ready to help.
Our Dependaworthy repair trucks are ready to roll, and our crew shows up ready to get to work. No shortcuts. No mess. Just tighter ducts and a more comfortable home.
Dependable + Trustworthy = DEPENDAWORTHY! That’s the way we do things around here. Call One Hour Heating and Air today. We’ll seal the leaks, boost your comfort, and give your system the breathing room it deserves. Safe. Simple. Solid. Every time.
