# Duct Cleaning Toronto | $400-$800, Inspected First > Duct cleaning in Toronto from $400-$800, plus ductwork repair, airflow balancing and dryer vent cleaning by TSSA-certified techs. Call 647-254-4113. URL: https://besthvactoronto.ca/ductwork-duct-cleaning/ ![Best HVAC Toronto technician cleaning a home supply duct with a rotary brush and vacuum hose](/images/hero/technician-in-plain-navy-uniform-cleaning-a-reside.webp) # Duct Cleaning in Toronto & Ductwork Repair Across the GTA Last updated: October 26, 2026 Best HVAC Toronto [/ →](/) has over 20+ years of Greater Toronto Area experience specialising in ductwork & duct cleaning across Toronto and the wider GTA. Residential duct cleaning, commercial duct cleaning, ductwork design and installation, duct sealing, and dryer vent cleaning across Toronto and the GTA, from Etobicoke and North York to Mississauga and Markham. Our licensed, TSSA-certified and WSIB-covered technicians correct the undersized return and supply plenum sizing common in post-war Toronto bungalows, balance CFM airflow across zones using static duct pressure and manometer readings, and install new duct runs to the Ontario Building Code with proper R-value insulation on runs through unconditioned space. Duct cleaning follows NADCA cleaning standards, using negative-air machines with HEPA filtration and rotary brush agitation to remove accumulated dust from supply and return ducts, the blower housing, and the evaporator coil cabinet, which improves indoor air quality where the ducts are genuinely contaminated. Dryer vent cleaning covers full mechanical brushing from the dryer to the outdoor termination, with bird nest and blockage inspection, to cut the risk of a lint fire. 2026 pricing: duct cleaning runs $400-$800 for a full residential system; dryer vent cleaning runs $150-$300; MERV filtration upgrades run $250-$650; commercial and light industrial duct cleaning, new ductwork, zone additions, and rebalancing are quoted per project after an airflow survey. Ductwork design, repair, and new installation are quoted per project after an on-site assessment. Same-day weekday capacity. 24/7 dispatch for gas emergencies and Enbridge Red Tags. - check\_circle TSSA G1/G2 certified - check\_circle 20+ years experience - check\_circle Manufacturer-Authorized Dealer call Call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) View pricing [#pricing →](#pricing) payments **From $400**. for a typical home duct cleaning - star star star star star 4.9 (150+ reviews) - verified TSSA G1/G2 Certified & $2M Insured - bolt 2-Hour Emergency Response - workspace\_premium Manufacturer-Authorized Dealer Common problems ## Sound familiar? air ### Some rooms barely get any airflow Usually undersized returns, crushed runs, or ductwork that was never balanced after a renovation. We diagnose the layout, not just clean what's there. coronavirus ### Dust and allergens building up despite regular cleaning Unsealed joints in unconditioned spaces pull in attic or crawlspace air. We seal and inspect the full run, not just vacuum the vents. local\_fire\_department ### A dryer that takes two cycles to dry a load A lint-packed dryer vent is a fire risk as well as an inconvenience. Dryer vent cleaning is part of every ductwork visit. ## What does a ductwork and duct cleaning visit include? Best HVAC Toronto is a TSSA-certified HVAC contractor that has served Toronto and the GTA since 2005. Our technicians design, install, clean, repair, and balance residential and commercial ductwork, and clear dryer vents to prevent lint fires, in everything from Etobicoke bungalows and Leslieville semis to Markham detached homes, stacked townhouses, and commercial units. Residential duct cleaning is the most common request; commercial duct cleaning for restaurants, offices, and warehouses runs on its own schedule outside business hours. The duct system is the part of a heating and cooling installation that homeowners think about least and that determines comfort most. You can install excellent equipment and still have a cold basement and a hot upstairs if the distribution is wrong. We will also be direct about duct cleaning, because it is the most oversold service in this industry. Cleaning genuinely helps after renovation or construction work, after a rodent or insect problem, where there is visible debris or biological growth at the registers, and when a home has been vacant. In a well-maintained house with a decent filter and no visible contamination, the measurable benefit is small, and a filtration or ventilation upgrade [/indoor-air-quality-systems/ →](/indoor-air-quality-systems/) usually does more for indoor air quality than repeat cleaning. We inspect the runs before quoting and tell you which situation you are actually in. ![Technician measuring supply register airflow with a capture hood while balancing a residential duct system](/images/content/technician-measuring-supply-register-airflow-with-.webp) Where we can nearly always help is airflow. If a room never reaches temperature, the usual cause is distribution rather than furnace [/furnace-installation-repair/ →](/furnace-installation-repair/) capacity. We measure static pressure across the air handler and airflow in CFM at each register, which turns an argument about equipment size into a specific, fixable finding. ### What is included in a duct cleaning Inspection and photographs of the runs, rotary brush agitation with a negative-pressure vacuum on the trunk, cleaning of all accessible supply and return runs, register and grille cleaning, furnace blower compartment cleaning, filter replacement, and post-work airflow verification. ## What ductwork problems do older Toronto homes have? ### Not enough return air The most common fault in post-war Toronto housing. Many Scarborough and North York bungalows were built with one central return, and when the basement was finished years later, nobody added another. Air cannot get back to the furnace, so it cannot be delivered either. Look for doors that drift shut, whistling under closed doors, and rooms that never quite reach temperature. ### Long, undersized, or crushed runs Flexible duct pinched behind a joist, a run stretched to the far corner of an addition, or a takeoff that was never sized for the room it serves. All produce the same result: not enough air arriving where it is needed. ### Unsealed joints in unconditioned space Ductwork in an attic, garage, or crawlspace leaks heated and cooled air into spaces you are not trying to condition. Sealing accessible joints with mastic is cheap and effective. ### Ductwork never rebalanced after a renovation Finishing a basement, adding a second floor, or converting an attic changes the heating and cooling load of the house. Systems that were balanced correctly in 1975 are rarely still balanced today. ### Dryer vents packed with lint A separate issue but one we are asked about constantly. A restricted dryer vent makes the appliance run far longer than it should and is a genuine fire risk. If clothes need two cycles, check the vent before blaming the dryer. ## How much does duct cleaning cost in Toronto? For cleaning, the drivers are the number of supply and return runs, the size of the home, and access. A compact East York semi with eight runs sits at the lower end of the 2026 range of $400 to $800; a large Vaughan home with twenty runs across three levels sits at the upper end. Pricing is the same whether you are in downtown Toronto, Mississauga, or Brampton, and the Best HVAC Toronto crew dispatches across the GTA, so the duct cleaning crew near you works from the same written rate card. Commercial duct cleaning is quoted per building after a walk-through, because the number of air handlers, the duct sizes, and after-hours access vary far more than they do in houses. For ductwork modification, the cost depends on how much needs changing and how accessible it is. Adding a return in an unfinished basement is straightforward. Running a new supply to a finished attic bedroom means opening and repairing finished surfaces, which is the larger part of the cost. New trunk runs for an addition are quoted per project after a load calculation. For diagnostics, we would rather charge for an airflow survey and give you a specific answer than sell equipment that does not address the cause. Where duct correction turns out to be unnecessary, we will say so, and that visit will have saved you the price of a furnace you did not need. ## How often should you clean your air ducts? The industry recommendation from the National Air Duct Cleaners Association (NADCA) is duct cleaning every three to five years for average residential homes, with more frequent cleaning for specific triggers. Reasons to clean sooner: recent renovation work that generated construction dust drawn into the ductwork, moving into a new-to-you home with unknown maintenance history, visible dust discharge from supply registers within seconds of the blower starting, allergy or asthma flare-ups tied to seasonal HVAC operation, pets that shed heavily and coat return grilles with hair and dander, or evidence of pest activity (droppings on registers, unusual smells from vents). Reasons cleaning does not need to happen: no visible dust discharge from supply registers, no allergy or health issues tied to the HVAC system, and a home that has been well-maintained with regular filter replacement. Filter replacement is more important than duct cleaning for ongoing air quality; a good MERV 11 filter changed quarterly keeps most of the debris out of the ductwork in the first place. Duct cleaning is a periodic reset, not a substitute for filter discipline. Cleaning cost typically runs $400-$800 for a full residential system including supply and return ducts, blower housing, and cabinet. Dryer vent cleaning (separate from HVAC duct cleaning) is typically recommended annually and runs $150-$300 for a standard residential run. ## How dryer vent cleaning prevents lint fires Dryer vents accumulate lint faster than most homeowners realise. Even with a lint trap catching most fabric fibres, fine lint bypasses the trap and coats the interior of the exhaust vent between the dryer and the outside termination. Fire services across Ontario regularly name lint build-up as a leading cause of clothes dryer fires: when the vent is restricted, airflow drops, the heating element runs hotter, and lint sitting near it can ignite. The warning signs that dryer vent cleaning is overdue: clothes take longer than one cycle to dry (typically an extra 15-30 minutes on the same load), the dryer body feels excessively hot to the touch during operation, a burning smell during the dry cycle, or lint visibly puffing out around the door seal. Any of these means the vent is restricted and the dryer is running hot enough to ignite lint. Annual cleaning is the recommendation for standard residential dryers with vent runs under 25 feet. Homes with long vent runs, multiple 90-degree bends, or condensed vent terminations should clean more frequently. Our cleaning includes disconnection at the dryer, mechanical brush through the full vent length, inspection at the outdoor termination for bird nests and blockages, and a post-cleaning airflow measurement to confirm restoration. Typical cost runs $150-$300 for a residential vent up to 30 feet including the termination inspection. ## Does duct cleaning actually improve indoor air quality? The honest answer: sometimes yes, often no. The industry has a chequered reputation because low-quality operators over-promise. What duct cleaning definitively does: removes accumulated dust, dander, and small debris from supply and return ductwork, which reduces re-entrainment of that debris into indoor air when the blower runs. What duct cleaning definitively does not do: eliminate ongoing air quality problems that have sources other than dirty ducts. Duct cleaning is worth the money in these specific scenarios. After a construction or renovation project where drywall dust or sawdust was drawn into the returns during work. After a rodent or pest infestation where droppings or nesting material contaminated the duct interior. In a newly-purchased home where the previous owners had heavy pets, smoked indoors, or had persistent mould issues. Or when a visible dust cloud discharges from supply registers within seconds of the blower starting, indicating heavy accumulation coating the interior. In these cases, professional cleaning to NADCA standards (negative-air machines with HEPA filtration, mechanical agitation brushes, and sealed vacuum collection) makes a measurable difference in indoor particulate levels. Duct cleaning is a waste of money in these scenarios: routine cleaning without specific symptoms; ongoing allergy problems that persist despite regular filter replacement (the source is elsewhere, usually pet dander, dust mites, or outdoor pollen); or as a replacement for filter replacement (a MERV 11 filter changed quarterly does more for indoor air than annual duct cleaning). Best HVAC Toronto technicians survey the ductwork with a borescope before quoting so you can see the actual condition of your ducts and make an informed decision. Transparent pricing ## How much does ductwork cost in Toronto? Ductwork design, repair, and new installation are quoted per project after an on-site assessment. receipt\_long Written quote before any work begins. No hidden fees. ### Dryer vent cleaning Fire prevention Starting from $ 180 for a typical home duct cleaning - check Full duct run cleared of lint - check Exterior termination checked - check Airflow verified after cleaning - check Recommended annually Get a quote [tel:+16472544113 →](tel:+16472544113) MOST COMMON ### Whole-home duct cleaning Typical Toronto home Starting from $ 400 for a typical home duct cleaning - check All supply and return runs - check Rotary brush and negative-pressure vacuum - check Registers and grilles cleaned - check Typically $400 to $800 Get a quote [tel:+16472544113 →](tel:+16472544113) ### Ductwork repair or redesign Quoted per project Starting from $ 1,200 for a typical home duct cleaning - check Static pressure and airflow survey - check New returns, takeoffs, or trunk runs - check Joint sealing with mastic - check Room-by-room balancing Get a quote [tel:+16472544113 →](tel:+16472544113) Prices are guide ranges for Toronto and the GTA. Final pricing depends on your equipment, access, and site conditions, and we confirm it in writing before starting. Request a free estimate [/contact/ →](/contact/) or call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) . savings Financing available on approved credit, plus lease-to-own with zero down on qualifying installs. Why us ## Why choose Best HVAC Toronto for ductwork? handshake ### We say no when cleaning will not help Duct cleaning is heavily oversold in this market. If your ducts are clean and your problem is airflow, we will tell you and quote the fix that works. monitoring ### Airflow diagnostics, not guesswork Static pressure and register readings tell us why a room is cold. Guessing leads to bigger equipment that makes the problem louder rather than better. local\_fire\_department ### Dryer vents taken seriously Lint accumulation is a genuine fire risk and a common cause of dryers that take three cycles. We clear the full run and verify airflow afterwards. architecture ### Design for real houses Finished basements, additions, and converted attics change a duct system's load. We redesign around what the house is now, not what it was in 1962. ## How Best HVAC Toronto compares | Feature | Typical provider | Best HVAC Toronto | | --- | --- | --- | | Cleaning recommendation | Sold to everyone | Inspected first, recommended only when it helps | | Airflow complaints | Sell a bigger furnace | Measure static pressure, fix distribution | | Duct sealing | Foil tape | Mastic on accessible joints | | Post-work verification | None | Register airflow re-measured and balanced | | Dryer vent | Partial clear from the inside | Full run plus exterior termination checked | How it works ## How does our ductwork service work? 1. 1search ### Survey the system For cleaning we inspect the runs first. For airflow complaints we measure static pressure and register flow before proposing anything. 2. 2handshake ### Explain what will help Duct cleaning helps some homes and does very little for others. We will tell you honestly which case you are in rather than selling the service by default. 3. 3build ### Do the work Cleaning uses a rotary brush with negative pressure on the trunk. Repairs and redesign work is sealed with mastic and supported properly. 4. 4verified ### Verify the result We re-measure airflow at the registers after any duct modification and balance the system room by room. ## Not sure what your ductwork situation needs? Get a straight answer and a written price, with the numbers to back it up. No pressure, no scare tactics. call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) Book Online [/contact/ →](/contact/) Our work ## Recent ductwork projects Click any image to enlarge. Reviews ## What customers say about our ductwork work starstarstarstarstar4.9 out of 5 from 150+ customer reviews star star star star star > The basement was always freezing. Instead of selling us a bigger furnace they fixed the return air and added a run. Cost a lot less than the other quote suggested. EErrol M.Guildwood, Scarborough star star star star star > They fixed the return air upstairs when we replaced the furnace. Bedrooms are finally the same temperature as the rest of the house. AAmrit K.Mount Pleasant, Brampton star star star star star > Replaced the original builder furnace and fixed the return air upstairs at the same time. Whole house is more even now. SSteph R.Hawthorne Village, Milton FAQ ## Ductwork questions, answered ### How much does duct cleaning cost in Toronto? expand\_more At 2026 rates, a typical home duct cleaning in Toronto runs $400 to $800 depending on the number of supply and return runs, the size of the house, and access. A compact East York semi sits at the lower end and a large three-level Vaughan or Markham home at the upper end. Dryer vent cleaning is usually around $180 on its own and less when combined with a duct cleaning. Be cautious of advertised prices well under $150, which almost always turn into a much larger bill on the day. ### Is duct cleaning actually worth it? expand\_more Sometimes. It is genuinely worthwhile after renovation or construction work, after a rodent or insect problem, when there is visible debris or mould at the registers, or when a home has been vacant or is being bought. In a well-maintained home with a good filter and no visible contamination, the benefit is limited. We inspect first and tell you honestly which situation you are in. ### Why is one room always colder than the rest? expand\_more It is almost always distribution rather than capacity. The usual causes are insufficient return air, a supply run that is too long or too small, a closed or crushed damper, or ductwork added during a renovation without rebalancing. We measure static pressure and register airflow to find the cause, and fixing distribution is normally far cheaper than replacing equipment. ### How often should dryer vents be cleaned? expand\_more Annually for most households, and every six months for large families or where the run is long or has multiple bends. Lint accumulation restricts airflow, which makes the dryer work harder and run longer, and it is a recognised fire risk. If your clothes need two cycles to dry, the vent is the first thing to check. ### What is static pressure and why do you measure it? expand\_more Static pressure is the resistance the blower has to push against, measured across the air handler. Most residential systems are designed for about 0.5 inches of water column. Many real installations run well above that because of restrictive filters, undersized returns, or crushed flex duct. High static pressure reduces airflow, causes hot and cold rooms, and shortens the life of the blower motor. ### Can leaky ducts really cost me money? expand\_more Yes, and often more than people expect. Ductwork running through an unconditioned attic, garage, or crawlspace can lose a meaningful share of heated or cooled air through unsealed joints before it reaches a room. Sealing accessible joints with mastic is inexpensive and one of the better returns available in a duct system. ### Do I need more return air? expand\_more Frequently, in Toronto's post-war housing. Many bungalows in Scarborough and North York were built with a single central return, and once the basement was finished, air had nowhere to get back to the furnace. Symptoms include doors that swing shut on their own, whistling under closed doors, and rooms that never reach temperature. Adding returns often solves what people assume is a furnace problem. ### Do you install new ductwork for additions and basements? expand\_more Yes. We design and install new trunk runs, takeoffs, returns, and registers for additions, finished basements, and converted attics. The key step is recalculating the load for the enlarged space rather than simply extending the existing system, which is how additions end up permanently cold. ### Do you offer commercial and industrial duct cleaning? expand\_more Yes. We handle commercial duct cleaning and kitchen exhaust ductwork for restaurants, retail stores, offices, and warehouses across Toronto, Mississauga, and Brampton, and light industrial duct cleaning for warehouse and production spaces. Commercial work usually needs scheduling outside operating hours, which we arrange, and we provide documentation for insurance and health inspection purposes. Commercial jobs are quoted per project after a site survey, and ongoing maintenance contracts are available for property managers. ### Are your duct cleaning technicians licensed and insured? expand\_more Yes. Every Best HVAC Toronto technician is TSSA-certified, covered by WSIB, background-checked, and works under $2 million in general liability insurance. That matters on duct work because the job involves the furnace blower compartment and, on gas appliances, the area around the burners and venting. We are an HRAI member, and all work is done to the Ontario Building Code. ### How do I stop duct cleaning sales calls? expand\_more Register your home and mobile numbers on the National Do Not Call List (DNCL) run by the CRTC, and ask any caller to remove you from their list, which they are legally required to do. Unsolicited calls offering whole-home duct cleaning for $99 or less are a well-known Toronto bait-and-switch: the low price rarely survives the visit. If you want your ducts assessed, book a company directly and ask for the inspection findings before agreeing to any cleaning. ### Will duct cleaning help my allergies? expand\_more It can help if there is genuine contamination in the ducts, but for most homes an upgraded filter and better humidity control deliver more benefit for less money. We would rather point you toward the intervention that will actually improve things than sell a cleaning that looks impressive and changes little. ## Related services airIndoor Air Quality SystemsHRV and ERV ventilation, humidifiers, filtration, and UV purification for healthier indoor air. [/indoor-air-quality-systems/ →](/indoor-air-quality-systems/) local\_fire\_departmentFurnace Installation & RepairHigh-efficiency furnace installs and same-day diagnostic repair across Toronto and the GTA. [/furnace-installation-repair/ →](/furnace-installation-repair/) ac\_unitAir Conditioning Installation & RepairCentral AC sized to your home, plus 24/7 emergency repair through Toronto heat waves. [/air-conditioning-installation-repair/ →](/air-conditioning-installation-repair/) ![](/images/hero/hvac-technician-in-plain-grey-uniform-kneeling-bes.webp) 24/7 for gas emergencies, red tags, no-heat and no-AC ## Ready to book ductwork? Residential duct cleaning, commercial duct cleaning, ductwork design and installation, duct sealing, and dryer vent cleaning across Toronto and the GTA, from Etobicoke and North York to Mississauga and Markham. Our licensed, TSSA-certified and WSIB-covered technicians correct the undersized return and supply plenum sizing common in post-war Toronto bungalows, balance CFM airflow across zones using static duct pressure and manometer readings, and install new duct runs to the Ontario Building Code with proper R-value insulation on runs through unconditioned space. Duct cleaning follows NADCA cleaning standards, using negative-air machines with HEPA filtration and rotary brush agitation to remove accumulated dust from supply and return ducts, the blower housing, and the evaporator coil cabinet, which improves indoor air quality where the ducts are genuinely contaminated. Dryer vent cleaning covers full mechanical brushing from the dryer to the outdoor termination, with bird nest and blockage inspection, to cut the risk of a lint fire. 2026 pricing: duct cleaning runs $400-$800 for a full residential system; dryer vent cleaning runs $150-$300; MERV filtration upgrades run $250-$650; commercial and light industrial duct cleaning, new ductwork, zone additions, and rebalancing are quoted per project after an airflow survey. Written quotes before work begins, and manufacturer parts coverage registered on your behalf. call Call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) Get a Free Estimate [/contact/ →](/contact/) - check\_circle Manufacturer registration filed on your behalf - check\_circle Written quotes before work starts - check\_circle TSSA G1/G2 certified, WSIB covered Cities we serve ## Ductwork & Duct Cleaning Across the GTA Ductwork installation and repair, aeroseal duct sealing, static pressure and CFM airflow balancing, dryer vent cleaning, and return-air correction. ### Ductwork & Duct Cleaning in North York City of Toronto [Ductwork & Duct Cleaning in North York →](/ductwork-duct-cleaning/north-york/) ### Ductwork & Duct Cleaning in Etobicoke City of Toronto [Ductwork & Duct Cleaning in Etobicoke →](/ductwork-duct-cleaning/etobicoke/) ### Ductwork & Duct Cleaning in Scarborough City of Toronto [Ductwork & Duct Cleaning in Scarborough →](/ductwork-duct-cleaning/scarborough/) ### Ductwork & Duct Cleaning in Vaughan City of Vaughan [Ductwork & Duct Cleaning in Vaughan →](/ductwork-duct-cleaning/vaughan/) ### Ductwork & Duct Cleaning in Markham City of Markham [Ductwork & Duct Cleaning in Markham →](/ductwork-duct-cleaning/markham/) ### Ductwork & Duct Cleaning in Mississauga Peel Region [Ductwork & Duct Cleaning in Mississauga →](/ductwork-duct-cleaning/mississauga/) ### Ductwork & Duct Cleaning in Brampton Peel Region [Ductwork & Duct Cleaning in Brampton →](/ductwork-duct-cleaning/brampton/) ### Ductwork & Duct Cleaning in Richmond Hill City of Richmond Hill [Ductwork & Duct Cleaning in Richmond Hill →](/ductwork-duct-cleaning/richmond-hill/) ### Ductwork & Duct Cleaning in East York City of Toronto [Ductwork & Duct Cleaning in East York →](/ductwork-duct-cleaning/east-york/) ### Ductwork & Duct Cleaning in Oakville Halton Region [Ductwork & Duct Cleaning in Oakville →](/ductwork-duct-cleaning/oakville/) ### Ductwork & Duct Cleaning in Burlington Halton Region [Ductwork & Duct Cleaning in Burlington →](/ductwork-duct-cleaning/burlington/) ### Ductwork & Duct Cleaning in Ajax Town of Ajax [Ductwork & Duct Cleaning in Ajax →](/ductwork-duct-cleaning/ajax/)