Aeroseal Duct Sealing in Vaughan
New house, but the upstairs is never comfortable? Some rooms run warm, others never seem to catch up, and you’re wondering how a home this new can have uneven room temperatures. Most people assume new ductwork is tight ductwork. It isn’t always. Air can leak out of the ducts on the way and never reach the room it was meant for.
We test first, so you know how much your ducts leak. Then we fix anything too big for Aeroseal by hand, seal the rest from the inside, and measure again. Both numbers go on your Aeroseal Seal Certificate. Vaughan is part of our service area, and we serve the whole GTA.
A recent Vaughan job
We recently sealed the ducts in a new home in Vaughan. Before sealing, the duct leakage measured 63%. After sealing, it measured 9.2%.
This one was a real challenge. Aeroseal needs the duct system to hold a certain pressure, because that pressure is what pushes the sealant out to the small leaks. Several times, the machine couldn’t reach the pressure it needs to start sealing.
So we stopped and investigated. In the basement, we found 5 sections of ductwork that were fully disconnected and very poorly installed. With that many open ends, the air was pouring out, and the machine couldn’t build pressure. You can see two of them in the photos.
A fully disconnected duct is far too big a gap for Aeroseal, which seals gaps up to about 5/8 inch. So we fixed all 5 sections by hand first. Once they were fixed, we were able to carry on and seal the rest of the system.
The leakage left at the end was about a seventh of where it started, a drop of more than 85%.
These are measured numbers, not estimates. We test before we start and again after sealing, and every Aeroseal job ends with a Seal Certificate showing both. We never share our customers’ addresses.
New homes leak too
It’s easy to think a brand-new house comes with brand-new, tight ducts. But ductwork goes in before the drywall does, and once the ceilings are closed up, nobody sees it again. A joint that isn’t connected properly can go unnoticed, and the air meant for your rooms ends up in the ceiling or walls instead.
The Vaughan home above is a good example. It was new, and it still had 5 fully disconnected duct sections in the basement. A new home doesn’t guarantee tight ducts. The only way to know is to test.
If your house is new and some rooms never feel right, a leakage test is a good place to start. It tells you, as a number, how much air your ducts are losing.
Why the machine needs pressure
Aeroseal pressurizes your duct system and sends a fine sealant mist through it. As the air escapes through the leaks, the sealant builds up at the edges of each gap until it closes. For that to work, the system has to hold pressure.
Small leaks are fine. That’s what Aeroseal is for. But a big opening, like a duct that’s come completely apart, lets the air pour straight out, so the machine can’t build pressure. When that happens, we stop and find the cause instead of pushing on.
Where we work in Vaughan
All of Vaughan, including Woodbridge, Maple, Kleinburg, Concord, Vellore Village and the Vaughan side of Thornhill. We serve the whole GTA, including Toronto, Brampton and Newmarket.
How it works
- Test first. We measure your duct leakage before we start.
- Look for big problems. We check for anything too big for Aeroseal, like a disconnected duct.
- Fix what’s too big for Aeroseal. Disconnected ducts and large gaps get repaired by hand. If the drywall has to be opened to reach a duct, patching it afterwards is up to the homeowner.
- Block every register and seal from the inside. Each register gets covered so the sealant stays in the ducts, then the Aeroseal machine sends sealant mist through the system and closes the leaks from within.
- Test again and give you the Seal Certificate, with the before and after numbers in writing.
Most homes take about 4 hours for sealing, or about 6 hours with air balancing. See the full process →
What Aeroseal can’t fix
Aeroseal seals gaps up to about 5/8 inch. Bigger holes and disconnected ducts, like the 5 sections on the Vaughan job, need a hand repair first. It’s not duct cleaning either: cleaning takes dust out, Aeroseal closes leaks. And it won’t make an undersized furnace or AC bigger. If the test shows sealing won’t help much, we’ll say so.
Price
- Aeroseal duct sealing: $1,499 + HST
- Aeroseal plus air balancing: $1,799 + HST
All registers in the home included.
Also included: the leakage test before and after, hand-sealing of accessible gaps, Aeroseal sealing and your Seal Certificate. See all services and prices →
Vaughan questions
My house is brand new. Can the ducts really leak?
Yes. New ductwork isn’t automatically tight ductwork. On a recent job in Vaughan, a new home measured 63% duct leakage before sealing, and we found 5 sections of ductwork in the basement that were fully disconnected. After we fixed them and sealed the system, it measured 9.2%. The only way to know how your ducts are doing is to test them.
What does it mean when the machine can’t reach pressure?
It means air is getting out somewhere faster than the machine can push it in. Aeroseal needs the duct system to hold a certain pressure so the sealant gets pushed out to the small leaks. A big opening, like a duct that’s fully disconnected, lets the air pour out, so the pressure never builds. When that happens, we stop and find out why. In Vaughan, it was 5 disconnected duct sections in the basement.
Why fix disconnected ducts by hand first?
Because they’re far too big for Aeroseal. It seals gaps up to about 5/8 inch. A duct that’s come completely apart leaves a whole open end, and the machine can’t build pressure until it’s closed up. So we repair those by hand, then seal everything else.
Will you tell me before doing extra work?
Yes. If we find something that needs a hand repair, like a disconnected duct, we’ll tell you before we do anything extra. If the drywall has to be opened to reach a duct, patching it afterwards is up to the homeowner.
How long does it take, and do I need to be home?
Most homes take about 4 hours for sealing, or about 6 with air balancing. If we find disconnected ducts that need fixing first, that adds some time. Someone needs to let us in and be around at the start and the end.
Do you work in Vaughan?
Yes. Vaughan is part of our service area, and we serve the whole GTA. We work Monday to Saturday, 8 am to 6 pm. Call 647-218-8031 for the next opening.
Find out how much your ducts leak
Call or text 647-218-8031, Monday to Saturday, 8 am to 6 pm. Or send us your postal code and what’s going on, and we’ll call you back with a price.
Also serving: Toronto · Brampton · Newmarket · Mississauga · All service areas