Leaky Ducts vs Sealed Ducts: How Much Energy Are You Losing?

Last Updated
January 3, 2026
5 min read

Duct leakage is one of the most overlooked causes of energy waste in residential HVAC systems.

Leaky Ducts

Leaks allow conditioned air to escape into attics, walls, or crawlspaces before it reaches living areas.

Common Indicators

  • High energy bills
  • Uneven room temperatures
  • Weak airflow from vents

Sealed Ducts

Properly sealed ducts ensure that air reaches its intended destination efficiently. 

If you are worried that your ducts may be leaking, let one of our experts come inspect your home.

Benefits

  • Improved HVAC performance
  • Consistent indoor temperatures
  • Reduced energy waste
  • Better indoor air quality

Energy Loss Impact

Leaky duct systems can lose up to 20–30% of conditioned air, significantly increasing utility costs.

Comfort and Control

Sealed ducts help maintain balanced airflow throughout the home, eliminating hot and cold spots.

Professional Sealing Solutions

Duct sealing methods such as mastic or aerosol-based sealing can dramatically improve system efficiency.

Stop the Air Loss

If you suspect duct leaks, a professional duct test can pinpoint problem areas and restore efficiency.

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