AccuServ Heating and Air Conditioning

4 Common Ductwork Problems That Hurt Your HVAC System

January 21, 2022

Think of your ductwork as the circulatory system of your home. It’s the lifeline of a heating, ventilation, and air conditioning (HVAC) system. Just like it’s important to keep your body healthy to ensure proper blood flow from your head to your toes, your ductwork also need to be maintained and inspected to ensure it functions correctly. Without proper ductwork maintenance in Toronto, however, your system can experience poor airflow and low efficiency.

Below we list four common ductwork problems that can negatively affect your furnace or air conditioner.


Poorly Sealed Vents

Air leaks within the ductwork system can have a detrimental effect on the HVAC system itself. Ductwork requires tight seals to allow proper airflow throughout the system. With ductwork installation in Toronto, it is important for the airducts, registers, and vents to be connected without any gaps or cracks.

Poorly sealed ductwork can force the heating or cooling unit to work overtime to adjust for the fluctuating temperatures. In addition, poorly sealed vents can also introduce contaminated air into the house. This is a common scene in basements, attics, and throughout the crawlspaces under the house.

Damaged or Dirty Ducts

The purpose of ductwork is to transport airflow from a heating or cooling unit to rooms throughout the home. Any exchange of air can see dirt, air pollutants, and debris gather and settle within the ductwork, even if the proper air filters are installed.

In addition, ducts can also suffer from wear and tear over time and can become damaged. As expected, damaged ductwork lowers efficiency, decreases airflow, and demands more power from the providing unit. This form of blockage can be caused by physical stress and small animals such as insects, squirrels, and mice burrowing their way inside your ductwork.

Improper Insulation

Yes, ductwork requires insulation and a vapour lining like any wall, roof, or doorway needs. The insulation should meet standard safety regulations and be properly installed, and the vapour lining should have the required R-value for today’s standards. Without insulation and a proper vapour lining, the ductwork will allow air to escape.

Blocked Supply Vents and Return Grilles

Lastly, one of the most common blockages of airflow throughout the ductwork happens when the supply vents and return grills are covered. Often times, furniture, boxes, cabinets, and other large items are unintentionally placed in front or on top of the openings. This too can force the unit to work longer and harder to make set temperature.

Ductwork Installation in Toronto

The experts at AccuServ Heating and Air Conditioning can provide a thorough inspection and diagnosis of any ductwork issues. Our technicians can help determine the best solutions to correct ductwork problems, all within your time and budget, including:

  • Installation of new ductwork
  • Modification of existing ductwork
  • Ductwork calculation for correct sizing
  • Diagnosing air flow issues
  • Full ductwork drawings

Contact us at (416) 269-2228 or by email to get in touch and take advantage of our HVAC maintenance, installation, and repairs in Toronto!