Aeroseal Duct Sealing in Brampton

A basement that never warms up. A bedroom over the garage that’s cold all winter. An upstairs that’s stuffy by June. If your Brampton home has uneven room temperatures, the ducts are worth checking. They’re mostly closed in behind drywall, so a leak can go on for years without anyone seeing it.

We test how much your ducts leak, fix by hand what Aeroseal can’t, seal the rest from the inside, then test again. You get the Aeroseal Seal Certificate with both numbers on it.

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A recent Brampton job

We recently sealed the ducts in a home in Brampton. Before sealing, the duct leakage measured 59.8%. After sealing, it measured 6.2%.

This one had a real challenge. We found a register hidden under the kitchen cabinets, in the toe-kick space below the base cabinets. Before Aeroseal can run, every register in the house has to be blocked off so the sealant stays inside the ducts. One register we can’t get to holds up the whole job.

So we removed the cabinet kickplate to reach it. Then we blocked the register off and started the sealing.

The leakage left at the end was about a tenth of where it started.

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.

59.8%Duct leakage before sealing

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6.2%Duct leakage after sealing

The space under kitchen base cabinets with the kickplate removed, showing a cabinet leg, the subfloor and a register opening in the floor behind it — The register we found hidden under the kitchen cabinets in the Brampton home. We took the kickplate off to reach it and block it before sealing.

Duct sealing machine with a laptop on top in a hallway, a clear tube running down the hall, a testo instrument and tool bags on the floor — The setup at the Brampton job. The clear tube carries the sealant into the duct system. The laptop and phone screens are blurred for privacy.

Where we work in Brampton

All of Brampton, including Bramalea, Heart Lake, Springdale, Castlemore, Mount Pleasant, Fletcher’s Meadow, Sandringham-Wellington, Credit Valley and downtown. We’re based in Mississauga, so Brampton is a short drive for us.

Where registers hide in Brampton homes

Every register has to be reachable on sealing day, and in a lot of homes at least one isn’t where you’d expect. Generally speaking, here’s where we look:

Under kitchen cabinets and islands, in the toe-kick space at floor level, like the one on the job above.
Under bathroom vanities and behind built-in furniture.
Finished basements where a register was covered over when the ceiling or walls went in.
Behind furniture that hasn’t moved in years. If you know of a heavy piece sitting on a register, tell us when you book.

How it works

Test first. We measure your duct leakage before we start.
Fix what’s too big for Aeroseal. Large gaps and loose or disconnected ducts get repaired by hand.
Block every register. Each one gets covered so the sealant stays inside the ducts. If one is hidden, we find a way to it, and we’ll tell you before we remove anything.
Seal from the inside. The Aeroseal machine sends sealant mist through the ducts, and it 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 get repaired by hand first, and we’ll tell you before doing any extra work. It’s not duct cleaning, 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 (fall/winter price)
Aeroseal plus air balancing: $1,799 + HST (fall/winter price)

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. Repairs to disconnected ducts or large gaps are quoted before we do them. See all services and prices →

Brampton questions

What if a vent is hard to reach or hidden?

We still need to get to it. Every register gets blocked off before sealing, so one we can’t reach holds up the whole job. On a recent job in Brampton, a register was hidden under the kitchen cabinets. We took off the cabinet kickplate to reach it, blocked it, and then started sealing. If something has to come off to get to a register, we’ll tell you before we remove it.

Why do all the registers have to be blocked during sealing?

Aeroseal fills the ducts with a fine sealant mist under a little pressure. With every register blocked, the only way out is through the leaks, and that’s where the sealant builds up and closes them. An open register would just let the mist out into the room.

My house isn’t that old. Can the ducts still leak?

Yes. Duct joints and the connections at the registers can leak in a house of any age, and since most ductwork is closed in, you can’t tell by looking. That’s why we measure the leakage before we quote any sealing.

Is Aeroseal the same as duct cleaning?

No. Duct cleaning takes dust and debris out. Aeroseal seals the leaks, so more of the air your furnace or AC moves actually reaches your rooms.

How long does it take?

Most homes take about 4 hours for sealing, or about 6 with air balancing. A hidden register or a repair we have to do by hand first can add some time. Someone needs to let us in and be around at the start and the end.

Do you cover all of Brampton?

Yes. Brampton is part of our regular service area, and we’re based right next door in Mississauga. We work Monday to Saturday, 8 am to 6 pm. Call 647-218-8031 for the next opening.

Want to know 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.