What duct cleaning actually costs in Mississauga
Date Published
Duct cleaning in Mississauga runs $249 to $499 for a typical house and around $179 for a condo suite. The wider market sits between $199 and $399 for a base package covering roughly ten vents, with $28 to $45 per additional vent, which puts most all-in bills somewhere between $349 and $749.
That range is wide because the industry prices by vent count while advertising by base rate. Here is what actually determines your number.
Vent count sets the price, not square footage
This is the single most useful thing to understand before you call anyone. A duct cleaning is priced by how many runs have to be individually agitated, and that is your vent count — the registers in each room, plus the cold-air returns.
Square footage correlates loosely and nobody prices on it. A 2,400 square foot bungalow and a 2,400 square foot three-storey can differ by eight vents.
Walk the house and count. Every room, including the basement, plus the large intake grilles — usually one per floor. Now you can price the job yourself and you cannot be surprised on the day.
Typical Mississauga counts
- Condo suite: 6 to 8 vents and one return
- Townhouse: 10 to 14 vents
- Detached, 1960s–80s: 14 to 20 vents
- Detached, 1990s–2000s: 18 to 24 vents
- Large newer detached: 22 to 28 vents, sometimes two furnaces
Why the $99 ads exist
A $99 duct cleaning is a door-opener, not a price. That figure typically covers a fixed number of vents — often six — with everything beyond it billed per vent on the day, plus separate line items for the furnace, the cold-air returns and a sanitizing treatment presented as mandatory.
A homeowner who booked $99 commonly signs for $400 to $600. This is the most frequent complaint in Ontario duct cleaning reviews, and it is a business model rather than an accident.
The defence is simple and it costs you nothing: before booking, give the company your vent count and ask for the all-in number including every add-on and HST. Ask for it in writing. A company that will not put a number in a text message before arriving is telling you what kind of visit it plans to be.
What should be included
At these prices, a cleaning should include the furnace blower compartment and cabinet, every supply run, at least one cold-air return, and all main trunk lines. The blower collects more buildup than any individual duct run — cleaning the branches while leaving it coated accomplishes very little, and charging separately for it is a false separation.
What legitimately costs extra
- Additional cold-air returns beyond the first, around $35 each
- Dryer vent cleaning, $79 to $99
- AC evaporator coil, around $89
- Antimicrobial sanitizing, around $69 — worth it for confirmed growth or after water damage, not as a default
- Duct insulation removal, always quoted on site
When it is not worth paying for
If your system was cleaned in the last three years, there has been no renovation, nobody in the house has respiratory issues and you are not seeing dust from the registers, you can wait.
Health Canada does not recommend routine duct cleaning as a health measure for a system that is already clean. The honest case for doing it is accumulated debris, post-renovation dust, a home whose history you do not know, or visible buildup — not an annual calendar entry.
Our prices
We publish every number on the pricing page: $179 for a condo suite, $249 up to 10 vents, $349 up to 20 vents, $499 for an unlimited deep clean with sanitizing. Additional vents are $25. The price quoted on the phone is the price paid.