Aeroseal Duct Sealing in Burlington

If some rooms in your Burlington home never get enough air, or you’re living with uneven room temperatures between floors, leaky ducts are a common cause. Leaks in hidden duct runs let heated or cooled air escape before it reaches your rooms, and you can’t see them without testing.

We measure your duct leakage, fix the gaps we can reach by hand, seal the rest from the inside with Aeroseal, then measure again. You keep the Aeroseal Seal Certificate with both numbers on it.

Call 647-218-8031 Get my price

A recent Burlington job

We recently sealed the ducts in a home in Burlington. Before sealing, the duct leakage measured 51.3%. After sealing, it measured 5.7%.

This job took longer than usual, and it’s a good example of why we test first. We ran a smoke test, using theatrical smoke to show where the air was escaping. It led us to a large hole in one of the ducts, hidden behind a wall and big enough to put a hand through.

Aeroseal seals gaps up to about 5/8 inch, so a hole like that has to be fixed by hand. We repaired the duct by hand first, and only then started the Aeroseal sealing.

In plain words: most of the air that was escaping through leaks in the ductwork now reaches the rooms instead. The leakage left is about a ninth 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.

51.3%Duct leakage before sealing

→

5.7%Duct leakage after sealing

Opening in a drywall wall with a hand reaching into a large torn hole in the metal duct behind it — The hole the smoke test found, hidden behind the wall, before the repair.

Clear Aeroseal injection tube running from a finished basement into the mechanical room with the furnace and water heater, with a laptop in the foreground — The Aeroseal setup at the Burlington job. The sealant travels through the clear tube into the duct system. Labels and the laptop screen are blurred for privacy.

Areas we cover

All of Burlington, including Aldershot, Tyandaga, Brant Hills, Headon Forest, Millcroft, Orchard, Alton Village, Palmer, Roseland, Shoreacres and Downtown Burlington.

Nearby too: Oakville, Waterdown, Hamilton and Milton.

Burlington homes and their ducts

Burlington has everything from older houses near the lake to newer subdivisions. A few things we look for, generally speaking:

Older homes in areas like Aldershot, Roseland and around downtown, where ductwork has often been changed or extended during renovations. Joints added over the years are common leak points.
Two-storey subdivision homes with long duct runs to the upstairs bedrooms. Leaks along the way leave less air for the far rooms.
Newer homes in places like Alton Village, where joints can still leak even though the house is newer.
Finished basements, where trunk lines and branch ducts are closed in behind drywall. As our Burlington job shows, a big leak can hide back there without anyone knowing.

How it works

Test first. We measure your duct leakage before we start. If we suspect a big hidden leak, we may use a smoke test to find it.
Fix what’s reachable. Large holes, accessible gaps and loose connections get sealed or repaired by hand.
Seal from the inside. The Aeroseal machine sends sealant mist through the ducts, and it closes the leaks from within.
Test again. We measure the leakage after sealing.
Seal Certificate. You get 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, like the one we found in Burlington, 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. See all services and prices →

Large holes or disconnected ducts are repaired by hand before sealing, and we quote that before doing it.

Burlington questions

Is Aeroseal the same as duct cleaning?

No. Cleaning removes dust. Aeroseal seals leaks so more heated or cooled air reaches your rooms.

What if you find a big hole in my ducts?

We fix it by hand first. Aeroseal seals gaps up to about 5/8 inch, so anything bigger, or a duct that’s come apart, gets repaired before sealing. On a recent Burlington job, a smoke test found a large hole in a duct behind a wall. We repaired it by hand, then sealed the rest with Aeroseal, and the leakage went from 51.3% to 5.7%. We’ll always tell you what we found and quote the repair before doing it. If we have to open a wall or ceiling to reach the duct, patching the drywall afterwards is up to the homeowner.

How do I know it worked?

We measure your leakage before and after sealing. Both numbers are on your Aeroseal Seal Certificate, and you keep a copy.

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. It can take longer if we find a big leak that has to be fixed by hand first. Someone needs to let us in and be around at the start and the end. We ask that as few people as possible stay in the house while the sealing runs.

Do you come to Burlington?

Yes. We’re based in Mississauga, and Burlington is part of our regular service area. 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.