What sets us apart from the competition

Sem’s Duct Cleaning is the leading provider of commercial and industrial air duct cleaning in Richmond Hill and the region. We boast three decades of experience and can perform a thorough check-up and inspection of your HVAC unit:

  • Thermostat testing
  • Leak identification
  • Compressor check
  • Humidifier & heater assessment
  • Airflow evaluation
  • Air filters inspection
  • System check for pest infestation
  • Electrical components check-up

Make your premises a healthy environment

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

Why commercial air duct cleaning makes sense

Reduces costs for electricity

When you regularly maintain your HVAC system, you save on electricity bills. Our technicians can inspect and clean your interior components during your tune-up.

Improves indoor comfort

We put special focus during our maintenance visit on the thermostat. We can make sure that your device reads temperatures correctly and reacts accordingly.

Fewer visits for maintenance

Our experienced technicians meticulously inspect every part of your HVAC unit. Our team can tend to all pending issues immediately.

Longer equipment lifetime

By conducting a cooling tune-up during springtime before temperatures rise, you’ll ensure the longevity of your air conditioner and furnace.

Reach out to Richmond Hill’s specialists in air duct cleaning


Time-tested procedures

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 cutting-edge Truck-Vac system to ensure removal of all dust particles from the cooling and heating vents.


Experienced professionals

At our company, we employ highly-skilled technicians who perform efficient and reliable service.


Air pressure cleaning

We use  negative air pressure and 8”-diameter suction hoses and so our Truck-Vac can suck out 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 quality 300psi scrubbing tools make it easy to clean any leftover residual debris or dust.


Transparent prices

Request your quote via our user-friendly scheduling platform and get an accurate cost with no hidden fees.


Knowledge and experience

Our team possesses the expertise to render an all-encompassing service to fulfill all the tasks.


Effortless scheduling

Simply pick your preferred date and schedule your commercial air duct cleaning.


Available across the region

Our services are available in Richmond Hill and across the Greater Toronto Area.

Our services are suitable for a wide variety of buildings

  • Facilities for industrial use and commercial purposes, warehouses
  • Skyscrapers, company offices, low rise and ground floors
  • After renovation buildings, houses, flats, and ground floor buildings
  • Residential buildings, low-rise buildings, townhouses, houses, flats
  • Public schools, primary, secondary schools, nurseries
  • Clinics and health buildings, long-term care facilities
  • Supermarkets, cafes, restaurants, department shops
  • Buildings and real-estate, rental land, skyscrapers

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

Discover our range of comprehensive commercial air duct cleaning

  • Post-construction washing
  • Industrial air duct cleaning
  • Housing pipeline cleaning
  • Dryer duct maintenance
  • Summer dust cleaning
  • Winter duct washing
  • Carpet cleaning
  • Centralized vacuum cleaning
  • Dryer duct washing

Schedule our commercial air duct cleaning in Richmond Hill today!

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

Frequently Asked Questions

Commercial air ducts in workplaces can become dirty for a number of reasons, but the most common cause is dust and dirt from the building itself, which can be brought in by people or by the air conditioning system. Pollution from outside can also get into the ducts, as well as insects, spiders, and other pests. All of these elements can cause the air in the building to be less healthy to breathe.

It’s crucial to keep air ducts clean in commercial buildings to maintain a healthy environment and prevent the growth of mold and the spread of allergens and other contaminants. Regular cleaning can help reduce asthma and allergies, as well as improve energy efficiency.

Regular cleaning your system is essential for your health and the health of your employees. Not only does it keep your air clean and free of contaminants, but can also help to improve the efficiency of your HVAC system, as well as the overall working environment.

However, not all methods are created equal. Some can actually do more harm than good, especially if they’re not performed correctly. It’s why you should always use a professional service for commercial duct cleaning in Richmond Hill and the surrounding areas. Reach out to our team today to set up an appointment.

The frequency at which you should clean your system depends on several factors. These include the type of duct, nature of the business, and the level of pollution in the surrounding environment. Typically, it’s recommended that air ducts be cleaned every one to three years.

If your business produces a lot of airborne pollutants, or your location has high levels of dust or dirt in the air, it may be necessary to clean your ducts more often. Similarly, if your business doesn’t produce much airborne pollution and you’re located in a relatively clean area, you may be able to go longer between cleanings.

While regular air duct cleaning is essential, it’s also important to keep the rest of your HVAC system in good condition. Make sure you have your filters changed regularly and have the entire system inspected and serviced at least once a year. Neglecting these basic maintenance tasks can lead to decreased efficiency and increased energy bills.

Sem’s Duct Cleaning is the go-to professional air duct cleaning for commercial, industrial and residential clients across the Greater Toronto Area. Our experienced technicians have nearly 30 years of experience and knowledge under their belt and can be found across the region. Reach out to us if you need:

Reach out to our team and book your service today. Whether your building is located near Oak Ridges Corridor Conservation Reserve or the David Dunlap Observatory, you can lean on our technicians to provide an efficient service.

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.

$50 OFF

until Dec 31