5 Telltale Signs Your Home Needs Duct Cleaning

Your ductwork is the system of pipes and vents that deliver heated or cooled air throughout your home. Over time, these pipes and vents can collect dust, pollen, pet dander, and other allergens. When your furnace or air conditioner kicks on, it circulates these contaminants throughout your home, which can aggravate allergies and respiratory problems.

Here are five common signs it’s time to get your home some duct cleaning:

1. Uncontrollable Dust Around the House

If you have to dust a lot and the dust never seems to disappear, you might need to clean your air ducts. A dirty HVAC system can push particulate matter into the air in your home, which can cause a build-up of dust.

The dust you see everywhere is made up of tiny particles of matter. These particles eventually settle on every surface, which is why you notice dust all the time, no matter how often you clean it up.

2. Dirt, Dust, or Debris Around Registers and Vents

If your ductwork is dirty, the air flowing through it is likely carrying dust and other debris out through the vents. This can lead to several problems, including reduced airflow, decreased efficiency, and even indoor air quality issues.

This means it’s time to clean your ducts when they are so full of dust and other particles that they spill out of the system. You should ideally do a deep cleaning and follow up with maintenance cleanings every two years.

3. Mold in Your HVAC System

If you think you see or smell mould in your furnace or air conditioner, there are likely mould spores in your ductwork. If you don’t want to breathe in the mould inside your house, you should consider professional duct cleaning. In addition to duct cleaning, you may also want to do a mould test to see if your home needs any mould remediation to keep indoor air quality healthy.

4. Air Filters Get Dirty Unusually Quickly

The filters in your HVAC system need to be changed at regular intervals to keep the system running smoothly. If your air filters are constantly getting clogged and dirty, it is a sign that your ductwork is also very dirty. Cleaning the ductwork professionally can solve the problem and keep your HVAC filters working properly for as long as they are supposed to.

5. Unexplained Increases in Heating and Cooling Expenses

Dirty ductwork can make your heating and cooling system less efficient, costing you more utility bills.

A clean ductwork system makes it easier for air to flow through the filters, vents, and returns in your home. A dirty system makes it harder for your heater or air conditioner to circulate temperature-controlled air throughout your house.

Scheduling regular professional duct cleaning is a great way to help keep your monthly heating and cooling costs down. When your ductwork is clean, your HVAC system will run more efficiently.


Duct cleaning is an important part of home maintenance. It removes dust, dirt, and other debris from your ductwork, improving the efficiency of your HVAC system and ensuring that the air in your home is clean and healthy. While duct cleaning is not difficult or expensive, hiring a professional to do the job right is important.

Canada Unified Services Inc. is a registered cleaning company in Calgary. We have been providing cleaning services for carpets, furnaces, ducts, and houses since 2014. We also offer water damage restoration services at affordable prices. Our cleaning services are guaranteed environmentally friendly, use non-toxic chemicals, and are safe for families and pets. If you’re looking for duct cleaning services in Calgary, get in touch with us today!