Benefits of Sem’s Air Duct Cleaning Services

  • We thoroughly pre-check your system service and conduct a Multi-Point System Check.
  • We use drop sheets, moving blankets, corner guards and register covers in preparation for careful treatment of your home when appropriate.
  • We clean the furnace blower and blower housing to give your system a complete clean.
  • We also make room for cleaning zones or framework or parts that follow stable cleaning techniques.
  • Our experts provide skilled finishing by wiping down the outside of your furnace and sealing the access panels to have convenient future access.


CALL US AT (647) 476-2711


Before beginning with cleaning, the first thing our experts at Sem’s air duct cleaning company do is to conduct a full inspection of your air duct system. Statistics have noticed that there are specific device characteristics for every home in Markham. Hence, our specialists take the exhaustive time to do a comprehensive check-up to determine the air duct issue before continuing with the simplest and safest way to clean your air duct. We will then carefully explain to you the results of all our inspections immediately. Your professionals will then carefully clarify the processes involved in starting and finishing the cleaning operation.

Our techniques at Sem’s Duct Cleaning are similar to the old-style brush cleaning and the safety of modern pneumatic cleaning systems in cleaning your furnace and duct cleaning, which is the best form of air duct cleaning that provides all the benefits of direct surface contact cleaning. This is the best way to clean your duct in Markham.

Sem’s Duct Cleaning provides the best furnace cleaning methods to our customers, and this is because we believe in supplying our customers and prospective customers with well-standardized services without extra charge!

Popular issues experienced by building owners in Markham

We are the Markham duct cleaning company that will bring you amazing results.

  • Water ducts, such as dead insects or mice, are overrun by vermin.
  • To the degree that it strangles the air that flows through the vent into the house, dust and debris clog the duct.
  • Within your ducts or in other parts of your ventilation, heating or cooling system, there is substantial and discernible mold growth.

Sem’s Duct Cleaning is a modern duct cleaning business with expertise built for the modern era.

For information on how air duct cleaning services in Markham work, please feel free to reach any of Sem’s Duct Cleaning specialists.


Reduced Costs For Electricity

A well-maintained system can work more effectively than one that has been ignored. When you frequently manage the HVAC system, you get to pay lower bills. Our technicians can clean dust from interior components during your tune-up, tighten electrical connections, and lubricate moving components. These modifications give you a better-calibrated device that is designed to provide the utmost energy efficiency.

Fewer Visits For Maintenance

As part of your maintenance visit, our service technicians carefully inspect every part of your HVAC unit. We should fix them immediately if we find any pending issues, rather than waiting for them to escalate into major concerns. This means that with no downtime, you will enjoy faster, more affordable repairs. Take care of early development concerns so that you don’t have to call us back for maintenance visits in the future.

Indoor Comfort Improved

One of the top areas we inspect during a maintenance visit by a technician is the thermostat feature. It ensures that your device correctly reads temperatures and reacts as it should. Make sure that the thermostat is adjusted correctly by the technician. Let us help you take care of your HVAC system’s maintenance to maximize relief from these discomforts.

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 by taking good care of the equipment. Get your heating system serviced in the fall to prepare for winter problems before the temperatures begin to fall.


How We Operate:

Forms of Markham Buildings:

  • Warehouses, facilities for industrial use and commercial premises

  • Company offices: skyscrapers, low rise and ground floors

  • Supermarkets, bars, cafes, high schools, department shops, small premises for processing and manufacturing, laundry

  • Health buildings and clinics, homes for disabled citizens, long-term care facilities

  • Schools; Public, Residential, Primary, Secondary; Nurseries

  • Buildings and real estate, rental land, skyscrapers

  • Elevator, townhouses, low-rise buildings, houses, flats, attics, residential buildings

  • After renovation, buildings, houses, flats and ground floor buildings

    *You can contact us to get started with the full planning if we didn’t mention your house type.

Why Trust Sem’s Duct Cleaning for Cleaning Your Air Ducts in Markham?

Our technicians were chosen here at Sem’s Duct Cleaning in Markham and are professionally certified. Our pride is our assurance that we provide a strong inclination and ability for certified team members to use all modern equipment and equipment available on the market. We will never, with all the above promises, place you at a disadvantage. All the questions that bother you about cleaning the duct and the processes will be answered.

We do not diminish the quality and service we provide. For the first, second, third or tenth time, we provide the same quality of service ... No matter how long you need our service, we offer the same performance. We do our best to provide an air duct cleaning service that is concise and satisfactory. Every minute, we prepare your work well, ensure that all doors and windows are airtight, and then finish the air ductwork before leaving.

We create vacuuming in the ducts where all the waste will be drawn into the truck bed using our truck vacuum cleaner, removing all the dirt from your office or home. Impurities, garbage and allergens are readily absorbed in a few minutes using this vacuum. So in a few minutes, we’ve got you covered.

With powerful features, we use different professional cleaning tools to remove any remaining dirt without damaging the dirt. We agree that after vacuuming, we use a 300 psi peeling tool to remove debris. After vacuuming the dirt, we do this immediately.

When we finish the duct cleaning, what do we do? Drop by drop, and we begin air washing filters, fans and other parts of the air conditioning system. Regardless of the duct or location’s nature, our duct cleaning team from Sem’s will provide an efficient and superior cleaning service. Today you can contact us and get a free evaluation of the duct cleaning work in Markham. We also sell the installation of galvanized steel access panels on the suction pipe openings, even though we provide professional air duct cleaning services. We execute and complete this installation immediately, even before you fulfil your promises.

Duct Cleaning Process - steps by Sem’s Duct Cleaning


With Sem’s air duct cleaning, we provide

the best technique for cleaning the duct. After a scheduled cleaning service with our skilled cleaning, we guarantee that you will have a clean duct and healthier air duct after a scheduled cleaning service with our professional cleaning team in Markham.


Blast Vacuum

We conduct Duct cleaning services using the Truck-Vac method by vacuuming all dust and mold particles for superior duct cleaning. This is one of the most effective of all the other techniques adopted in Markham.


Trained Workforce

All of our technicians in the duct cleaning services of Sem’s are well-trained workers who provide the best services for you and ensure satisfaction in any cleaning job.


Planning and Preparation

Before we start cleaning your air ducts, we’ve set up a few plans. We have established a suitable course of action that will prevent bad results. By coating the floors, guaranteeing the door’s suitability and arranging your furniture for the operation, we do this. We prevent the spread of dust as well.


Unavoidable Air Pressure

When washing, we use 8ft negative air pressure vacuum hoses to ensure our Truck-Vac sucks all the duct waste into the vacuum layer.

Duct Cleaning Process - steps by Sem’s Duct Cleaning


Clean Scrub

Our 300 psi cleaning tools make it convenient to scrub any residual dust or debris physically. It may be used in vacuum cleaners.


Cleaning Cover

Our equipment can also clean the duct’s interior and clean the lids and drips off the grill.



We need to rinse and vacuum the HVAC groove, filter housing, ventilator and cabin to provide a full-service system.


The Grand Finale

After cleaning is complete, our team installs new shiny galvanized access plates over the vacuum hose openings.

How To Prepare

One or two days before the specified date, we will call you to confirm all your data’s validity. These details include the cleaning address and budget you requested; You can ask questions by phone or email during the process.


CALL US AT (647) 476-2711

In choosing an HVAC system cleaner, what criteria should I use?

Use the following pre-qualifications, however, to narrow down the list of possible contractors:

  • Make sure that you have as much interaction as you can with many local contractors.
  • Make sure you understand how long the company has been in business and has gathered its expertise.
  • Evidence of the company’s approved and sufficiently protected insurance is very significant.
  • The business you select must be assured that it is important to clean and visually inspect all the air ducts and related device components in your apartment.
  • You may not be familiar with the equipment your hired company wants to follow. You should also question if the company has the right cleaning facilities to operate effectively and if the company has done similar work in homes to yours.
  • Get references from neighbours if necessary.

Facts of Interest!!! Do you know the following?

  • When you feel hot or too cold in workplaces, no doubt, productivity declines; research has verified that the optimal working temperature is 71 degrees (21.7 degrees Celsius).
  • Remember that the most common cause of HVAC faults is dirt and dust accumulation.
$20 1 JAN. - 1 MAR.