Why do some duct cleaning companies charge so little?

Great question, and it's one that catches a lot of Ottawa homeowners off guard.

The short answer: low prices almost always mean cut corners, and sometimes they're outright scams.

The duct cleaning industry has a well-documented problem with "bait and switch" pricing. A company advertises a whole-home duct cleaning for $99 or $149, technicians show up, and suddenly you're being told your ducts are "severely contaminated" and the real job will cost $800-$1,200. This practice is so common that the Better Business Bureau regularly warns consumers about it. Legitimate duct cleaning for an average Ottawa home — done properly — costs $400 to $800, and that price reflects real labour, proper equipment, and time.

What proper duct cleaning actually requires is truck-mounted or high-powered portable vacuum equipment, rotating brush systems to dislodge debris from duct walls, and a technician who spends 3-5 hours in your home. Shortcuts like handheld shop vacs or compressed air alone simply don't clean your duct system — they just move debris around. A low-price operator is almost certainly skipping the equipment and the time.

There's also a licensing consideration. In Ontario, while duct cleaning itself doesn't require a TSSA license, any company that touches your furnace or makes adjustments to gas components absolutely needs licensed technicians. Some discount operators will poke around your furnace without the credentials to do so safely.

For Ottawa homeowners, look for companies that are NADCA-certified (National Air Duct Cleaners Association), carry WSIB coverage, and can show you before-and-after photos of the work. Ask specifically what equipment they use and how long the job will take — those two questions alone will tell you a lot.

If you'd like a straightforward quote from a reputable team, Ottawa HVAC Pro offers professional duct cleaning with full transparency on pricing and process. No surprises.