• Multi-Point System Check. Sem’s Duct Cleaning will perform a thorough pre-check of your air duct system and its operations.
  • We Treat Your Home With Care. When you hire us for a cleaning project, we make use of drop sheets, corner guards, moving blankets, and register covers for your furniture and floor protection.
  • Full System Clean. When you hire us for a cleaning service, we clean the Furnace Blower and Blower Housing.
  • Dual Zone Cleaning. Each of your air duct system is cleaned in “zones” with safe cleaning methods.
  • Professional Finishing. Sem’s Duct Cleaning will wipe down the outside of your furnace and seal the access panels for convenient access in the future.



CALL US AT (647) 476-2711


Before we begin the cleaning process, our duct cleaning tech specialists will perform a complete inspection of your air duct and HVAC system.

As every home has its own special features, our tech specialists thoroughly evaluates the problems with your air duct. This process has to be carried out before we begin or choose the best, easiest and safest method of cleaning your air duct.

Sem’s duct cleaning will use safe furnace and air duct cleaning methods to deliver the benefits of direct surface cleaning. The process involves the use of old-style brush cleaning, and the safety of modern pneumatic cleaning systems.

When you hire the services of Sem’s Duct Cleaning service in Oshawa, we offer you the best services in furnace cleaning and at no extra charge!

8 SOS Signs Your Air Ducts Might Be Sending You

Sometimes, air ducts could be creative by letting you know that they need attention, and these signs will be addressed below.

  • Dust and odour
  • Mould or mildew
  • Visible Debris
  • Clogged up air filters
  • Dirty A/C coil and interior parts
  • No previous record of air duct cleaning
  • Dust in your home or workplace
  • Your health gets poorer than normal

We are a Duct Cleaning Company is Oshawa that delivers great results!



When the air duct system of your home is properly cleaned, you protect your family from harmful dust and other pollutants.


Many homes have their air ducts systems located in their basements and as we know the humidity there is usually higher.


Most of the time, animal fur gets lodged in the air vents and builds up living germs, fungus, and allergy causing bacteria. Pet dander is one of these allergens and exists in poorly cleaned vents. It can also hinder the functions of your HVAC system and slow down the airflow when clumped up.


Accumulated dust and pollutants in your ductwork will hinder the airflow in your HVAC system. However, observing proper cleaning will ensure the elimination of build-up and guarantee proper airflow. Insects and rodents living, breeding, and dying in your ducts will need to be cleaned as well.


Our services:

We operate in buildings:

  • Warehouses, Industrialbuilding & Commercial spaces

  • Business Offices: high rise, low rise and ground floor

  • Retail stores, Grocery stores, Restaurants, Coffee shops, Gym, Small production spaces & Manufacturing, Laundry

  • Medical buildings & Hospitals, Seniors homes, long term care facilities, retirement homes

  • Schools; Elementary, Secondary, Public, Private; Day-cares

  • Real estate buildings & holdings, high rises, rental properties

  • Townhouses, walk-ups, low rise, homes, condos, lofts, apartment building

  • Post-construction buildings, houses, apartments, condominium buildings

    *If you don’t see your type of building listed here, you can contact us to make preparations before the cleaning process.


Why You Should Trust Sem’s Duct Cleaning Services In Oshawa For Cleaning Your Air Ducts?

Sem’s Duct Cleaning employs the hands of professional technicians, personally handpicked from Oshawa. Delightfully, we assure you of our staff’s professionalism and ability to use sophisticated equipment and modern gear. Also, if you have any question about the cleaning process and our methods of cleaning, our professionals will be available to answer all your questions.

Whenever we are called for a job in Oshawa, we try our possible best to ensure that our air duct cleaning services are done right the first time, and that is why we spend much time in preparing for the job. During the preparation, we ensure that all the doors and windows are airtight and then complete the work in the air duct.

Using our truck-based blast vacuum to create suction in the ducts, we can suck out dirt, debris, and allergens quickly. All the debris in the ducts will be sucked into our truck’s bed, hence eliminating all dirt in your home or office.

We use our 300psi scrubbing tools to remove all debris left after sucking out the dirt. Our professional tools are very powerful and can remove all debris and remnants without damaging the integrity of your duct structure.

Once we complete the scrubbing process, we commence the air-washing process. We air-wash the drop, filters, blower fan and other parts of the air handler. We also offer to install galvanized steel access panels on the openings of your vacuum hose. Once approved, the installation process is performed immediately.

Sem’s Duct Cleaning is able to deliver quality and effective cleaning services, irrespective of the type of duct or building. To start, you can contact us today to get a free quote for your duct cleaning project in Oshawa.

Duct Cleaning Process - steps by Sem’s Duct Cleaning


Sem’s Duct Cleaning guarantees

a cleaner and healthier air duct when you schedule for cleaning services with our professional cleaning team in Oshawa. We provide the best technique for cleaning the duct as well.


Blast Vacuum

When we go for cleaning projects, we use a Truck-Vac system to ensure complete cleanliness. This method of cleaning is popular in the Greater Oshawa Area due to its efficiency in sucking out all particles of mildew and dust.


Skilled Workforce

To ensure your maximum satisfaction, Sem’s Duct Cleaning services offers the best and professionally trained technicians to inspect and clean your ducts.


Planning and Preparation

To ensure everything goes as planned, our team of professionals create a proper plan. They also cover your floors and furniture to avoid the spread of dust, while ensuring that your doors and windows are fit for the process. We prevent the spread of dust as well.


Powerful Air Pressure

To completely eliminate all dust and debris, we use negative air pressure 8’ vacuum hoses along with our Truck-Vac system.

Duct Cleaning Process - steps by Sem’s Duct Cleaning


Scrub Clean

We have many tools, and our 300psi scrubbing equipment are very reliable in the physical removal of all dust and debris left in your ducts.


Cover Cleaning

Our team not only does the cleaning of the insides of the ducts, but also the cleaning of grill covers and drops.


The Essentials

When we come to clean your ducts, our job is not complete until we air-wash and vacuum the drop, filter box, blower fan, and interior cabinet of your HVAC.


The Grand Finale

Finally, once we have completed the cleaning process, we will place a new, and shiny galvanized access panel at the entrance of your vacuum hose.

How To Prepare Your Home For Your Cleaning Appointment

The air ducts in your home circulate the flow of heat and cold within your home. With time, dirt, dust, debris, and other pollutants can accumulate in the air channels. These pollutants building up in your air channels might negatively affect your indoor environment and your comfort. Hiring the services of professional duct cleaners will help to eliminate all contaminants, while restoring proper air quality.


CALL US AT (647) 476-2711

Before We Arrive:

Remove Clutter

Before the duct cleaning process, ensure that the air vents are easily accessible to your contractors. An example of clutter elimination is to remove your couch from the front of the vent, allowing the professionals complete the task faster.

Inspect Your Furnace & A/C Unit

If you have items stored near your furnace, hot water tank, or A/C unit, it is advisable that you change their location. Observing this advice will help your technician to completely clean the components of your HVAC system including grills, fans, and registers.


Secure Your Pets

During the cleaning process, contractors will leave your doors open, hence, unconsciously allowing your pets to escape. To avoid this development, you might want to secure them in a room.

Properly Instruct Your Contractors On Home Rules

The first thing you should do after welcoming the contractor is to give them a quick tour of your home. Show them the different location of your air vents and other parts of your HVAC system. If you aren’t going to be around during the process, leave a phone number with them so they can conveniently reach you.

Interesting Facts!!!

Did you know?

  • Movie theatres were the first businesses to have an air conditioning unit in the 1930 and summer blockbusters were the main attraction.
  • In 1200 BC, the Romans were the first civilised culture to have furnaces in their homes.

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