Frequently Asked Questions

We have a base price of $295.00 which includes 5 air vents. Each additional supply/return vent is $9.00 per vent and each cold air return vent is $9.00 per vent, so the final price depends on the total number of air vents in your home. There is a minimum charge of 10 vents. We clean all of the heating and cold air return air vents. The base price includes the cleaning of all of supply/return duct work and all components in the air stream (including furnace fan, air conditioning coil, furnace plenums, air filter, etc.). Our price includes all vacuum hook-ups to supply/return duct work required to do the complete job. If your home has two or more furnaces, there may be an additional charge of $125-$170 per furnace which depends on the location of the furnace. Otherwise, there are absolutely no hidden charges. The only thing extra is HST.

There is usually 1 vent per 100 square feet in your home. Please note that your final price will depend on the actual number of vents that our technician(s) counts while doing your home.

Our prices are a great value. When you consider the quality of work, you’ll agree we are hands-down the #1 choice for air duct cleaning in the GTA.

We use truck-mounted vacuum equipment and compressed air. Our technician runs a large vacuum hose from our truck to your furnace. Once the duct system is under suction, we clean each air vent with 250 psi of compressed air, starting on the top floor and working our way back down to the basement. This blows all the dirt from the air vents into the main ductwork. From there, we use air-snakes and air-whips to clean the main ductwork. The vacuum draws all of the dirt out to our truck. The procedure is repeated to clean the return air ductwork. All air-handling components are cleaned using compressed air.

Make sure the service provider has clear access to all duct openings and heating and air conditioning equipment.

We recommend this be done every 2 – 4 years in most cases. We have many customers who have us back annually, and some every two years like clockwork. If any member of your home suffers from asthma or allergies to dust then we recommend that you have your ducts cleaned more frequently. If you’ve recently completed renovations or are moving into a new home, then air duct cleaning is a must.

In most cases, no. We normally use this in cases where the customer has a definite odour coming from the ductwork. Also in cases where the homeowner has converted their heating system from oil to gas and had soot in the ductwork. What we use is actually a deodorant / sealant which becomes the new surface inside the ductwork. If even one tiny dust particle is left in the system after we’ve cleaned it, this will seal it in permanently. We’ve been using this product since day one with excellent results. There is a small extra charge for this if you require it.

We do not service the furnace itself, however we work with reputable companies who can.

Our list of services is extensive. If it has anything to do with your heating system, we probably do it. We do furnace cleanings / inspections, service work, gas piping, venting and air balancing. We install new gas furnaces, central air conditioning, air cleaners, humidifiers, complete duct systems or new heating vents.

We also do masonry cleaning and grafitti removal, heavy vacuuming and insulation removal.

Our service area is huge. We go as far west as Niagara Falls, to eastern parts of Ontario such as Cobourg, New Castle and as far north as Huntsville if the call arises.

When choosing an air duct cleaner, avoid making your decision solely on the basis of price. The quality of the job should be your highest priority, because quality will determine your savings in energy costs, comfort, and durability. Find out exactly what’s included in the job and what is not. The first thing that many of our prospective customers ask is the price. Some of our competitors do have a much lower “base price” or “hook-up” charge. But if they apply that price 3 or 4 times or more because they had to “hook-up” to your duct system that many times, then tell you that you should have them clean the furnace fan for only $ 49.00 while they’re there, etc., etc., then that “cheaper” price ends up costing you much more. It makes little sense to clean the air duct system without cleaning the furnace fan. Why would a reputable company leave it up to the customer to decide if they want to spend the extra money for that or not?

We also do service and cleaning on gas furnaces. Over the years, we have been to several homes to clean the furnace just after a duct cleaner left. Sure they came and made some noise for twenty minutes, but they didn’t clean the furnace fan, or the fan compartment, and obviously didn’t even take the door off the furnace. If they weren’t going to clean the air filter, they could have at least told the customer to replace it. When asked why they didn’t do any of these things, their excuse is “Well, we’re duct cleaners not furnace technicians”.

At City Duct Cleaning Inc., we clean everything in the airstream, and it’s always included in the job.

Our base price applies only once.

In Ontario homes, air ducts should generally be cleaned every 3 to 5 years, or sooner if you have pets, allergies, recent renovations, smoke exposure, or visible dust buildup. City Duct Cleaning has been serving the GTA since 1987, providing professional residential and commercial duct cleaning to improve indoor air quality across Toronto, Mississauga, Brampton, Markham, Vaughan, and surrounding areas.

Yes. Professional duct cleaning removes dust, pollen, pet dander, mold spores, and debris from your HVAC system. This can reduce allergy symptoms, improve airflow, and help your heating and cooling system run more efficiently. City Duct Cleaning uses trained technicians and specialized equipment to deliver reliable air duct, dryer vent, and insulation removal services throughout the Greater Toronto Area.

Duct cleaning in the GTA typically ranges from $250 to $600+, depending on home size, number of vents, system condition, and additional services like dryer vent cleaning or insulation removal. City Duct Cleaning offers clear, cost-effective pricing with consultations across Toronto, Scarborough, North York, Mississauga, Brampton, Vaughan, Richmond Hill, Markham, Oshawa, Whitby, and nearby communities.

Common signs include excessive dust around vents, musty odours when your HVAC system is running, inconsistent airflow between rooms, increased allergy symptoms, higher energy bills, and visible dust or debris inside air registers. If you notice any of these issues, professional air duct cleaning can help restore indoor air quality and improve HVAC performance.

Yes. Professional air duct cleaning removes accumulated dust, dirt, pet dander, and other airborne particles from your ductwork. While some dust naturally enters your home through daily activities, clean air ducts help reduce the amount of dust circulating through your HVAC system, making it easier to maintain a cleaner living environment.

Yes. Having your air ducts professionally cleaned before moving into a new home removes dust, allergens, pet hair, and debris left behind by previous occupants. For sellers, clean ductwork can demonstrate that the HVAC system has been properly maintained and may enhance the home's overall appeal to prospective buyers.

Yes. Dust and debris inside ductwork can restrict airflow, forcing your heating and cooling system to work harder. Professional duct cleaning helps restore proper airflow, allowing your HVAC system to operate more efficiently, which may reduce energy consumption and extend the life of your equipment.

Yes. Since the furnace and ductwork operate together as one HVAC system, cleaning them during the same appointment helps prevent dust and debris from recirculating through the system. This provides more comprehensive cleaning and supports better system performance.

Homes with dogs, cats, or other pets typically accumulate more pet hair, dander, and dust inside the duct system. If you have multiple pets or family members with allergies, scheduling professional air duct cleaning more frequently can help improve indoor air quality and reduce airborne allergens.

Yes. Following water damage or professional mould remediation, air duct cleaning helps remove any remaining dust, debris, or contaminants that may have entered the HVAC system. If mould is suspected inside the ductwork, a professional inspection should be completed before cleaning begins.

Absolutely. Offices, retail stores, restaurants, warehouses, schools, healthcare facilities, and other commercial buildings rely on clean HVAC systems to maintain healthy indoor air quality. Regular commercial duct cleaning helps improve airflow, reduce airborne contaminants, and support efficient HVAC operation.

Before your appointment, ensure technicians have easy access to vents, air registers, the furnace, and mechanical room. Moving small furniture or personal belongings away from vents can help the cleaning process proceed efficiently. Professional technicians will handle the rest while protecting your home during the service.

Professional duct cleaning companies use powerful HEPA-filtered vacuum systems, negative pressure equipment, compressed air tools, and specialized rotary brushes to remove dust and debris from the entire HVAC system. These methods provide a much more thorough cleaning than household vacuum equipment.

Yes. Professional air duct cleaning is available for condominiums, apartments, townhomes, and other multi-unit residential properties. Cleaning methods are adapted to suit individual HVAC systems, fan coil units, and building ventilation layouts while improving indoor air quality for residents.

Professional technicians have the training, specialized equipment, and experience needed to clean the entire HVAC system safely and effectively. DIY methods typically clean only visible vent openings and cannot remove debris deep inside the ductwork. Hiring an experienced duct cleaning company helps ensure a more complete cleaning, improved airflow, and better long-term HVAC performance.