How Much Does Duct Cleaning Cost in Toronto? (2026 Pricing Guide)

Most Toronto homeowners get quoted one price and charged another. Whether you've seen a $99 ad online or received a cold call promising a deep clean for next to nothing, the duct cleaning industry in Toronto has a well-documented pricing problem. This guide cuts through it — real numbers, no lead forms, no bait-and-switch.

Quick Answer — Toronto Duct Cleaning Prices at a Glance

Service	Average Cost	Typical Range
Standard duct cleaning (up to 16 vents)	$289–$389	$189–$550
Per additional vent	$5–$15	—
Dryer vent cleaning (add-on)	$89–$129	—
Furnace blower cleaning	$69–$150	—
AC coil cleaning	$59–$100	—
Mold treatment / sanitizing	$49–$200	—
HRV / HEPA filter cleaning	$89–$150	—
Attic or crawlspace surcharge	$149+	—

Toronto market rates, May 2026. Prices exclude HST.

The average Toronto homeowner pays between $289 and $389 for a standard duct cleaning on a detached home. Condos and townhouses come in lower. Larger homes with multiple furnaces, attic ductwork, or heavy contamination will cost more.

What Affects the Price of Duct Cleaning in Toronto?

Number of Vents

Most quotes are based on a set number of supply and return vents — typically 10 to 16. Each vent beyond that adds $5 to $15 to your invoice. Before calling anyone, walk through your home and count every vent cover you can see, including return air vents (the larger ones, usually in hallways or common areas). This gives you a realistic baseline before you hear a quote.

Size and Type of Home

A condo with 8 vents is a very different job than a two-storey detached home with 25. Homes over 4,000 square feet or with multiple furnace units are typically quoted separately — expect custom pricing and longer appointment windows.

Accessibility

Standard pricing assumes ducts accessible from the basement or a main utility room. If your ductwork runs through the attic or a crawlspace, most companies charge a surcharge of $149 or more. Custom or non-standard duct layouts that require extra time and equipment also cost more. Mention this upfront when getting quotes.

Level of Contamination

Light annual dust buildup is a standard clean. Post-renovation debris, heavy pet dander, years of neglect, or visible mold are a different category — they require more time, more passes, and sometimes additional remediation. An honest company will inspect first and tell you what you're dealing with before starting.

Add-On Services

Dryer vent cleaning, furnace blower cleaning, AC coil cleaning, and HRV filter cleaning are all priced separately from the main duct clean. Most companies offer a discount when booked on the same day. These are legitimate add-ons — a clogged dryer vent is a fire hazard, not an upsell.

Duct Cleaning Cost by Home Type in Toronto

Home Type	Estimated Vents	Typical Cost (before HST)
Condo / apartment	6–10	$150–$250
Townhouse	10–16	$250–$389
Detached bungalow	14–20	$350–$500
Two-storey detached	20–30	$450–$650
Large home (4,000+ sq ft)	30+	Custom quote

Homes with two furnaces are quoted per furnace unit — factor that in if you have a finished basement with its own HVAC system.

Duct Cleaning Scams in Toronto — What to Watch For

This is the part of the guide most companies won't write, but it's the most important section on this page. Toronto has a documented, ongoing problem with duct cleaning fraud. Here's what it looks like.

The $99 Bait-and-Switch

A company advertises duct cleaning for $99 or less. A technician arrives, does a quick look, and suddenly the quote becomes $400, $600, or more — for mold treatment you didn't ask for, extra vents, or contamination that conveniently appeared on arrival. Legitimate companies price by vent count and home size. Any flat rate under $150 for a full home is a red flag.

Cold Calls Claiming to Be Local Companies

Well-known Toronto duct cleaning companies have publicly warned homeowners about phone scammers impersonating their businesses. If you receive an unsolicited call offering duct cleaning, hang up. Reputable local companies do not cold call. Find them through Google, HomeStars, or direct referral — then call the number on their official website.

Pressure to Add Mold Treatment on Arrival

Mold discovered the moment a technician walks in, requiring an expensive sanitizing package to proceed — this is one of the most common pressure tactics in the industry. Real mold contamination in ductwork does exist, but it requires visible evidence and should be documented. If a technician insists you need a $300 treatment with no photos or explanation, that's a problem.

No Truck-Mounted or High-Powered Equipment

Proper duct cleaning requires a truck-mounted vacuum system or a commercial-grade portable unit that creates strong negative pressure throughout the duct system. A technician showing up with a shop vac and a brush is not cleaning your ducts — they're going through the motions. Ask what equipment they use before booking.

What a Legitimate Quote Looks Like

- Itemized by vent count, not a flat mystery rate

- HST listed separately and clearly

- No disposal fees, access fees, or surprise charges

- Written confirmation sent before the job starts

- A company you can find on Google with real, verifiable reviews

How Often Should You Clean Your Ducts in Toronto?

NADCA (the National Air Duct Cleaners Association) recommends every 3 to 5 years under normal living conditions. In Toronto specifically, there are a few factors that push that timeline shorter:

• Pets: Pet dander and hair accumulates fast in ductwork. Clean every 2–3 years.

• Allergy or asthma sufferer** Every 1–2 years is reasonable, or whenever symptoms worsen.

• - **Post-renovation:** Any construction in your home — even minor — pushes debris into the duct system. Clean immediately after the work is done.

• - **After an infestation:** Rodents or insects in your ducts require cleaning as soon as the infestation is resolved.

• - **Recent home purchase:** If you don't know when the ducts were last cleaned, treat it as overdue.

  
  

Signs you need cleaning now: dust visibly blowing from vents, a musty or stale smell when the system runs, unexplained spikes in energy bills, or rooms that heat and cool unevenly despite no mechanical issues.

Is Duct Cleaning Worth It in Toronto?

Yes — under the right conditions. Here's an honest breakdown:

Worth it if:

- You haven't had it done in 5+ years

- You have pets, allergy sufferers, or young children in the home

- You've recently renovated or moved into a resale home

- You're seeing visible dust discharge or smelling something when the system runs

- You want to extend the life of your furnace and HVAC equipment

Less urgent if:

- Your system was cleaned within the last 2–3 years with no major changes

- You live in a small condo with minimal ductwork

- Your home was newly built with clean duct installation

The benefits when it's warranted are real: better airflow, fewer allergens circulating through your home, improved HVAC efficiency, and a furnace that doesn't have to work as hard. The energy savings alone can offset the cost over time.

Get a Transparent Quote From FreshFlow GTA

FreshFlow GTA serves Toronto, Etobicoke, Brampton, and Mississauga. Our pricing is straightforward — quoted by vent count, no hidden fees, no surprise invoices.

What's included:

- Full duct system cleaning with truck-mounted equipment

- Supply and return vents

- Main trunk lines and branch ducts

- Free inspection before any add-ons are recommended

Get Your Free Quote →

Frequently Asked Questions

How much does duct cleaning cost in Toronto?

For a standard home, expect to pay $289–$389 before HST. Condos run lower ($150–$250) and large detached homes or properties with multiple furnaces run higher. Get a quote based on your specific vent count.

How long does duct cleaning take?

A typical detached home takes 2 to 4 hours. Larger homes, heavily contaminated systems, or add-on services like dryer vent and furnace blower cleaning will extend the appointment.

Is duct cleaning a scam?

The service itself is legitimate and beneficial when done properly. However, Toronto has a well-documented problem with low-ball phone scams and bait-and-switch pricing. Always book through a company you've found independently — not one that called you — and confirm pricing in writing before they arrive.

How do I know if my ducts need cleaning?

Dust blowing from vents, a musty smell when your system runs, worsening allergies indoors, or simply not knowing the last time it was done are all good reasons to book an inspection.

Does duct cleaning include furnace cleaning?

Not automatically. Furnace blower cleaning and AC coil cleaning are typically add-on services priced separately. Confirm what's included in your quote before booking.

What's the difference between supply and return vents?

Supply vents blow conditioned air into rooms — they're the smaller ones throughout your home. Return vents pull air back to the furnace — they're larger, usually in hallways or open areas. Both need to be counted and cleaned.

*Related: [Duct Cleaning Services in Toronto](/duct-cleaning-toronto)*