Duct Cleaning Cost in the GTA: We Checked 22 Companies' Websites

GTA companies advertise whole-home duct cleaning at $49 to $650. The $49 is a Groupon package covering up to 10 vents. The $650 is Power HVAC's flat price for a home of 6,500 to 7,500 sq ft. That is 13 times the low price ($650 divided by $49 = 13.3). We read 22 GTA duct cleaning websites on August 26, 2026 and copied every price with its conditions. A price a company charges is not an estimate it publishes about the market. The $500 to $1,100 quoted for Toronto is the second kind.

What GTA companies advertise for a whole house

One row, one company, one priced item, with its limit.

The next four rows are a different kind of number.

1 Clean Air's $500 to $1,100 sits in its "Average Cost of Duct Cleaning by Region" table, a Canada-wide list of city averages. A region average is a city-wide average, not a quote for your home. The same page elsewhere calls residential work $200 to $600. My Property Care's column is headed "Realistic 2026 Cost". Integrated Clean Air writes that cleaning "typically costs between $400 and $700". Useful, but nobody has offered you that price.

Power HVAC prices by square footage, not by vent, and runs the same $195 headline in Vaughan. Mint in Scarborough publishes only $10 a vent.

A headline is worth only its vent cap. DAVESDUCTS covers 16 vents and prints the rest itself: "Example: 25 vents - 16 vents = 9 vents x $5 = $45 + $389 = $434 x 1.13 (hst) = $490.42 CAD". That is the only tax-included total for a specific home among the 22.

The per-vent rate is where a flat price stops being flat

Count your vents, supply and return, before you phone anyone. One extra vent runs from $5 at DAVESDUCTS to $39 at the top of 1 Clean Air's band, a spread of $34 ($39 - $5).

Dryer vents are a separate purchase

What the 22 GTA sites do and do not tell you

We checked each site for a price, a rate for extra vents, a dryer vent price and a word about tax. Of the 22, 18 publish at least one price and four publish none: Enercare, Power Vac Toronto-GTA, Air Force Duct Cleaning and AtlasCare in Oakville.

Tax is left out most often. Five sites state it beside the price. Home Depot writes "Taxes and additional services are not included". My Property Care writes "HST of 13% applies to all duct cleaning services in Ontario". DAVESDUCTS prints "+ HST" on its price, AMDuct prints "+ hst" on all three tiers, and Duct Care's Groupon listing says "Taxes are extra". Two more say it elsewhere: City Duct in coupon fine print, Power HVAC on its condo page. "No hidden fees" or "all-inclusive" is claimed on eight of the 22, two of which publish no price.

Several companies publish charges that raise the bill. Power HVAC lists "Additional furnace: $100 (Most likely in houses more than 4,000 sqft.)". Four firms publish a rate for vents over the cap. DAVESDUCTS alone shows its extra charges as clearly as its headline price. It prints a "$149 + hst" attic or crawlspace surcharge. A "$199 + tax" truck fee applies if a technician comes out, finds no work needed and you say no.

The same company, two different prices

Five companies publish two numbers for one thing. This is what the pages say, not a claim about why.

Home Depot's Toronto average sits below its national floor ($199 - $189 = $10), under an asterisk: "Figures presented does not include applicable taxes". BlueGuard's search snippet is $40 above its own page ($189 - $149). City Duct's example is under its base price and under its own formula ($290 + 5 x $9 = $335). Its $25 coupon needs a "Minimum duct cleaning order of $325.00 (before HST)" that no base-price job reaches.

How a $49 special becomes a $249 bill

NADCA names the price shape rather than any seller. It describes "blow-and-go" companies that "hook unsuspecting homeowners with bargain-basement prices like '$89 whole-house specials'". They then "do an inferior job, only cleaning what the homeowner can see", then "up-sell add-on services". Nothing below says how any named merchant does its work.

CleanFreshAir Services sells duct cleaning on Groupon at CA$49 for "up to 10 supply and return vents", across a 20-mile radius from Whitby. The fine print holds the real price: "All supply & return vents must be cleaned; extra $10 fee per additional vent beyond 10." So a 20-vent house pays $49 + $100 = $149. A 30-vent house pays $49 + $200 = $249, before the surcharge for "more than two main ducts". Condos do not qualify, and the merchant's spec line reads "National Air Duct Cleaners Association Certified: no". Pricier deals exclude condos too. Duct Care's fine print also says "Not valid for condos or commercial units."

Duct Care Inc sells 20 vents at CA$339, which is $290 above the CleanFreshAir headline ($339 - $49 = $290). It charges $10 a vent over 20, states "Taxes are extra" and is NADCA certified.

In 2013 CBC Marketplace hired several Toronto companies that cold-called it with fake caller ID. That year, expert Gino Merenda set the floor at "at least two hours and cost more than $300, depending on the size of the home". CBC's report: "In two cases, the cleaners completed the job in approximately one hour and charged $115 and $99 before tax, respectively." Both bills landed $185 and $201 under that floor ($300 - $115, $300 - $99). In March 2015 the CRTC penalised nine air duct cleaning companies "based in the Greater Toronto Area". They had cold-called without registering for the National Do Not Call List. Four settled for $55,000 in total and five received notices totalling $94,000. Its Chief Compliance and Enforcement Officer said they "used foreign call centres that sometimes used caller identification spoofing".

What GTA residents report paying

Bad experiences share one shape: the number changes after the crew is inside.

The widest gap in the reviews: $550 over the quote before tax ($875 - $325 = $550).

What the law says about a price you cannot actually get

The Competition Act covers this. Its wording: "the making of a representation of a price that is not attainable due to fixed obligatory charges or fees constitutes a false or misleading representation". The Competition Bureau calls that drip pricing, which means advertising a price you cannot actually pay. Sales tax is the one exception. A required per-vent charge is not. Bait and switch selling can be challenged under the same Act, and so can selling "at a price that is higher than the price advertised".

The Ontario rule matters more to most readers. Duct cleaning is on Ontario's restricted list. These services "cannot be offered or sold at your home unless you initiate the transaction", a rule in force since March 1, 2018. Ontario lists exceptions: "There are some exceptions, including instances where you already have a contract in place." The repair visit is the common one. A contractor in your home for a repair may not sign you up during that visit. They "will only be able to leave information". Any in-home agreement over $50 must be written, with a 10-day cooling-off period from the day you receive your copy. You can cancel inside it. Consumer Protection Ontario takes complaints on 1-800-889-9768.

Is duct cleaning worth it, at any price

Canada's federal position is CMHC's. Duct cleaning "will not usually change the quality of the air you breathe, nor will it significantly affect airflows or heating costs". It adds that "regular duct cleaning is probably unnecessary for most householders". CMHC lists four situations where it "could make sense (although there is little research data to support this)". They are water or mould in the ducts, a newly built house or major renovation, and real airflow trouble where "a duct cleaning could reveal significant blockages". The fourth is visible debris in return air registers, which CMHC says you can vacuum yourself. It separates what the price lists blur. Cleaning furnace and air conditioning parts has been shown to affect airflow. Cleaning the ducts alone has not.

The Canadian Forces Housing Agency Occupant Handbook, updated May 1, 2026, adds a warning. It says "the process of duct cleaning can temporarily increase particles in the air as the system is disturbed". It tells occupants to check filters monthly and replace them every three months instead. Jeffrey Siegel, a University of Toronto engineering professor, told CBC Radio that a review of 60 or 70 studies "found that duct cleaning doesn't make a difference".

Health Canada's page on improving indoor air quality does not address duct cleaning. We searched it for "duct" on August 26, 2026, and found one real mention of ductwork: the filter inside it. The page advises running an HVAC system "with a filtration system built into the duct work". Its PM2.5 guidance mentions in-duct filters, not cleaning. The US EPA publishes a band "from $450 to $1,000 per heating and cooling system". NADCA's consumer site Breathing Clean puts an average-sized home "between $450 and $1,000". Both are US dollars from US bodies, and neither is a GTA price.

What a proper cleaning includes, and how to buy one

NADCA's test has two halves. First, "source removal": the dirt is knocked loose and pulled out with "agitation devices designed to loosen contaminants". Second, the whole system stays "placed under continuous negative pressure (a vacuum)", so the vacuum runs throughout. Breathing Clean names what cheap specials leave out: "the air handler, blower fans, coils, registers, or necessary access openings". Before you book:

• Get three written quotes, as EPA advises: "talk to at least three different service providers".
• Ask whether HST is in the figure, because most sites leave 13% off the page.
• Price the dryer vent separately, $40 to $250 across the six companies publishing one.
• Refuse the phone pitch and the doorstep sale, which Ontario's rules restrict.
• Ask to be shown the dirt, before and after, and whether the crew is NADCA certified.