Why choose Sem's Duct Cleaning?

With a tradition that spans more than 3 decades, we can proudly call ourselves one of the best providers of residential air duct cleaning in Markham. We hold our clients’ wellbeing in the highest regard and consider it our mission to help keep the air in their homes healthy and fresh at all times. We treat every task with utmost attention to detail and quickly devise custom solutions that fit our customers’ specific needs. Services we offer include:

  • Thermostat testing
  • Air filter assessment
  • Airflow checkup
  • Air leak identification
  • General equipment assessment
  • Compressor examination
  • Electrical component testing
  • Pest infestation detection
  • Furnace/heater & humidifier checkup
  • Gas connections inspection

Want to see our experts in action?

Call (289) 466-5006 today.

Our experts in AC duct cleaning ensure your convenience & safety

Lowered energy costs

Dirty HVAC vents limit airflow and place extra strain on your cooling and heating system. This can increase its energy consumption by up to 40%, which will be reflected in your electric bill.

Better indoor air quality

Without air conditioning duct cleaning, your ductwork will eventually fill up with dust, grime, pollens, toxins, and even fungal spores, negatively impacting your and your family’s health.

Protects your property

A grimy HVAC system will spread dust and other particulate matter throughout your home. This will not only make it smell strange, but may also damage sensitive electronics and other costly items.

Fewer long-term repairs

Dingy heating and cooling systems tend to last less and break down more often than ones that are kept in good condition. By keeping the ductwork tidy, you’ll extend the life of your equipment.

Our approach to residential duct cleaning has been carefully refined


User-friendly booking system

Obtain an estimate in minutes or schedule your service from any device via our state-of-the-art online form.


Purpose-built solutions

After carefully examining your system, we’ll prepare a custom plan for the specific type and layout of your HVAC vents.


Floor protection

We’ll use time-tested vent magnets, corner guards, and floor runners to keep your floors safe and tidy while we work.


Furniture protection

We’ll move any furniture that’s not an antique or too bulky out of the way to shield it from falling debris. This usually takes less than 15-30 minutes.

Where can I schedule a detailed duct cleaning service in the Greater Toronto Area
Toronto Residential Air Duct Cleaning _ How We Work _ Best in GTA

Comprehensive dusting

We have an advanced device that uses an air want to rapidly remove grime out of every canal and near-instantaneously vacuums it into our van.


Pneumatic brushing

We’ll loosen any hard dirt buildup in your ductwork using a pneumatically-powered rotary brush, and then push it into the vacuum with a reverse nozzle.


Final touches

We’ll finalize our service by carefully wiping down all supply and return vents in your home, and install a new vacuum hose access plate if you’re a new client.


Transparent pricing system

We leave no space for interpretation as to what exactly you’ll be getting for your money. We’ll never charge you hidden fees and other added expenses.


Broad service area

Our team for residential AC duct cleaning operates not only in Markham, but also in Aurora, Thornhill, Mississauga, Etobicoke, and across the GTA.

We serve a wide range of different properties

  • Houses
  • Apartments
  • Condominiums
  • Rentals
  • Cabins
  • Historic homes
  • Freshly built residences
  • Newly renovated spaces

*We recommend giving us a call even if your home in Markham doesn’t fall into any of the categories in the above list. We’re dedicated to ensuring our clients’ satisfaction and may be able to come up with a tailored residential air conditioning duct cleaning solution for your specific property.

Apart from residential AC duct cleaning in Markham, we also provide:

  • Central vacuum cleaning
  • HVAC vent washing
  • Dryer duct cleaning
  • Post-renovation services
  • Winter washing
  • Pipeline cleansing
  • Air conditioner washing
  • Furnace cleansing
  • Summer maintenance
  • Carpet washing

Keep your indoor air pure with the help of a skilled & experienced crew

Dial (289) 466-5006 today.

Frequently Asked Questions

Yes. Without residential air duct cleaning, the heating and cooling vents on your property in Markham will eventually become so dirty they will start contaminating your indoor air. This can cause all sorts of respiratory issues, which include sinus congestion and other sinus-related problems.

Residential AC duct cleanings can alleviate a range of different issues. These include:

  • Poor indoor air quality
  • Increased energy bills
  • Unpleasant smells
  • Insufficient airflow
  • Reduced HVAC system life
  • More frequent HVAC malfunctions

Inbuilt HVAC vents can’t be cleansed using everyday household products and supplies. It requires specialized hardware that can only be handled by qualified technicians. That’s why you should always leave your AC duct cleaning to a reputable company in Markham.

As a general rule, residential air ducts should be cleaned once every 2-3 years. However, if you live in a busy downtown district or near a major thoroughfare or construction site, more frequent service visits may be necessary.

Sem’s Duct Cleaning is a highly rated AC duct cleaning provider that operates across Toronto and the surrounding communities. Our clients value our detailed approach, top-of-the-line hardware, and team of certified experts who take pride in their work. We serve a large area, so if you’re in need of a comprehensive residential HVAC duct cleaning in Maple, in-depth air conditioning duct cleaning in Aurora, or professional-grade air duct cleaning services in Newmarket, we’re the ones to call.

Want to know more or schedule an appointment? Whether your property is situated right next to the Markham Village Town Hall or out in Catchet, our crew is just a brief phone call away. Get in touch with us today.

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