Cleaning your air ducts is essential for maintaining good indoor air quality and keeping your HVAC system running efficiently. Many homeowners wonder if they can handle this task on their own. While some aspects of duct cleaning can be done yourself, others require professional tools and expertise. Here’s what you need to know about DIY duct cleaning and when to call in the pros.


What You Can Do Yourself:

Change Air Filters Regularly

One of the simplest and most effective DIY duct cleaning tasks is changing your air filters. Filters should be replaced every 3 months or more often if you have pets or allergies. Clean filters help keep dust and debris from circulating through your ducts.

Clean Vent Covers and Registers

Remove and clean the vent covers and registers throughout your home. Dust and debris often accumulate on these surfaces. Use a vacuum with a brush attachment or wash them with warm, soapy water. This simple step is an easy way to start your DIY duct cleaning process.

Vacuum Around Duct Openings

You can vacuum around the openings of your air ducts to remove visible dust and debris. Use a vacuum with a long hose attachment to reach into the duct openings as far as possible. While this won’t clean the entire duct system, it helps reduce surface dust.

Inspect for Visible Mould or Mildew

Look for any visible signs of mould or mildew around the duct openings or vent covers. If you see any growth, clean it with a mold-killing solution, such as white vinegar or hydrogen peroxide. However, significant mould problems in your ducts require professional cleaning.


What DIY Duct Cleaning Tasks Can You Handle Yourself?

You can handle simple DIY duct cleaning tasks like changing air filters, cleaning vent covers, and vacuuming around duct openings. However, deep cleaning the entire duct system, addressing mould issues, and cleaning hard-to-reach areas require professional tools and expertise. Attempting these tasks yourself could cause damage or leave harmful debris behind. Always consult a professional for complex duct cleaning needs to ensure safety and effectiveness.

What You Shouldn’t Do Yourself: The Limits of DIY Duct Cleaning

Deep Cleaning of the Entire Duct System

DIY duct cleaning does not involve cleaning the entire ductwork system. Professional duct cleaning services use specialized equipment, such as high-powered vacuums and rotary brushes, to clean the ductwork thoroughly. Attempting to do this yourself without the right tools could damage the ducts or leave harmful debris behind.

Handling Major Mold Infestations

If you suspect mould growth inside your ductwork, don’t attempt to clean it yourself. Professionals are equipped to handle mould safely, preventing it from spreading throughout your home. Attempting to clean mould yourself can make the problem worse and affect your health.

Cleaning Ducts in Hard-to-Reach Areas

Some parts of your ductwork are difficult to access without specialized tools. Trying to reach these areas without the proper equipment could cause damage. Professionals have the tools needed to clean even the most challenging sections of your duct system.

When to Call in the Professionals for Duct Cleaning

While some tasks can be part of your DIY duct cleaning routine, certain situations require professional duct cleaner attention:

  • Persistent dust or debris buildup, even after regular cleaning.
  • Visible mould or mildew inside the ductwork.
  • Unusual odours coming from the ducts.
  • Unexplained increases in energy bills.

If you notice any of these signs, it’s time to call a professional duct cleaning service.


DIY duct cleaning can help maintain the cleanliness of your home and improve air quality. Regularly changing air filters, cleaning vent covers, and vacuuming around duct openings are simple tasks you can do yourself. However, deep cleaning, mould removal, and hard-to-reach areas should be left to the professionals. Knowing what you can and can’t do yourself ensures you keep your air ducts clean and your home safe.