What sets us apart from the competition

Sem’s Duct Cleaning is the leading provider of commercial and industrial air duct cleaning in Newmarket and the surrounding area. Our specialists have three decades of experience and can conduct a complete inspection and check-up of your HVAC unit:

  • Thermostat test
  • Leak identification
  • Compressor check
  • Heater & humidifier evaluation
  • Airflow assessment
  • Air filters inspection
  • System check for pest infestations
  • Electrical components evaluation

Ensure the safety and freshness of your premises

Reach out to our team at (647) 476-2711

Why commercial air duct cleaning makes sense

Reduces costs for electricity

When you frequently manage the HVAC system, you save on electricity bills. Our technicians can clean dust from interior components during your tune-up.

Improves indoor comfort

One of the main areas we inspect during a maintenance visit is the thermostat feature. It ensures that your device correctly reads temperatures and reacts as it should.

Fewer visits for maintenance

Our service technicians carefully inspect every part of your HVAC unit. Rather than waiting, we’ll tend to pending issues immediately.

Longer equipment lifetime

By arranging a cooling tune-up early in the spring before the summer heat takes over, you will make the most of your investment in a quality air conditioner and furnace.

Reach out to Newmarket’s experts in air duct cleaning


Time-tested methods

Our team uses tried-and-true techniques for commercial air duct cleaning that ensures a cleaner and healthier air flow throughout your space.


Blast vacuum

We use our powerful Truck-Vac system that guarantees removal of all dust particles from the heating and cooling vents.


Highly-skilled experts

At our company, we employ only the best and well-trained technicians who provide consistent and efficient service.


Air pressure cleaning

We use 8″-diameter suction hoses and negative air pressure so our Truck-Vacs can suck out every bit of debris to prevent any damage to your vents.

Toronto Residential Air Duct Cleaning _ How We Work
Toronto Residential Air Duct Cleaning _ How We Work _ Best in GTA

Scrub clean

Our efficient 300psi scrubbing tools make it convenient to physically clean any leftover residual debris or dust.


Transparent pricing

Request a quote by following our easy-to-use booking platform and get an accurate estimate of the price with no hidden costs.


Experience and know-how

Our members are highly skilled and experienced technicians who can render comprehensive services to fulfill all your requirements.


Easy scheduling

Simply give us a call and pick a date of your choosing for your commercial air duct cleaning.


Available across the region

Our services are available throughout Newmarket and across the Greater Toronto Area and beyond

Our services are suitable for a wide variety of buildings

  • Warehouses, facilities for industrial use and commercial purposes
  • Company offices, skyscrapers, low rise and ground floors
  • After renovation buildings, houses, flats, and ground floor buildings
  • Residential buildings, townhouses, low-rise buildings, houses, flats
  • Public schools, residential, primary, secondary schools, nurseries
  • Health buildings and clinics, Long-term care facilities
  • Supermarkets, bars, cafes, department shops, restaurants
  • Buildings and real-estate, rental land, skyscrapers

If you don’t see your type of building or space in Newmarket or the nearby areas on the list, get in touch and let us know how we can help.

Discover our range of comprehensive commercial air duct cleaning

  • Industrial air duct cleaning
  • Post-construction washing
  • Cleaning the housing pipeline
  • The vents washing
  • Cleaning the vents in the air
  • Dust cleaning during winter
  • Dust cleaning during summer
  • Carpet cleaning
  • Centralized vacuum
  • Dryer duct washing

Book our commercial air duct cleaning in Newmarket with ZERO hassle!

Reach out to our specialists at (647) 476-2711.

Frequently Asked Questions

Commercial cooling and heating systems are sophisticated and are composed of numerous different components that depend on the type of system you have.

However, some issues arise more frequently than others. Here are the three most common problems that business owners in Newmarket face and why  industrial air duct cleaning may be in order:

  • Clogged  air filters: Worn or clogged filters will push your system to work harder, increasing its energy use and reducing its efficiency. Also, this may eventually lead to a more serious system breakdown.
  • Leaky refrigerant: The lines of the refrigerant in your unit can develop leaks, reducing its efficiency and potentially causing other components to malfunction.
  • Malfunctioning thermostat: Sometimes, there’s no issue with your system but the problem lies with your thermostat. A faulty thermostat can cause fluctuations with the temperature and improper functioning.

The obvious answer is, to put it simply, commercial air duct cleaning improves the air quality in your space. On average, people spend the majority of their time indoors. So to ensure the air you’re breathing is the cleanest and safest quality, hire the best technicians in Newmarket for the job. Reach out today to request a quote!

Routine industrial or commercial air duct cleaning removes regular buildup in your HVAC system. This process helps support healthy indoor air quality (IAQ). It also provides smooth airflow for your heating and cooling system. This can improve efficiency, which supports smart energy consumption and lower utility bills.

In some situations, routine maintenance isn’t enough. And you may need to schedule your service sooner than three to five years from your last maintenance. Some signs that your ductwork needs more immediate attention include:

  • Illness: Lingering colds, sinus infections, and other respiratory problems may indicate the need for better IAQ. Asthma and allergy sufferers may benefit from more frequent cleanings, as well.
  • Infestation: Rodents and insects are fond of making air ducts their home. Prevent the spread of disease and illness from these vermin with air duct cleaning.
  • Mold: Mold is a dangerous contaminant. Remove visible growth as soon as possible. But you’ll also need to remove the source. Mold spores are airborne and may spread easily through your vents. If you encounter this problem, talk to your technician about restorative and preventative measures.
  • Remodeling: Space renovation work generates massive amounts of dust, dirt, and debris. Unsealed ducts are prime for contamination. Schedule a ductwork inspection with our team after a remodeling project, and our technicians will check for buildup in your HVAC system.

For over three decades, Sem’s Duct Cleaning has been the leading provider of professional air duct cleaning to private and public clients across Newmarket and the Greater Toronto Area. If you’re searching for reliable, experienced, and qualified technicians, don’t hesitate to contact us for:

Reach out to us and book your service today. Whether your building is located near Fairy Lake or near the Mabel Davis Conservation Area, you can count on our team to quickly show up and meet your needs with utmost care and efficiency.

View our commercial service area

Give us a call to (647) 476-2711
or get an air duct cleaning quote online

Some of the services might not be available at all times. Please contact us for more information related to your specific HVAC cleaning needs.