What Is a Duct Leakage Test?

A duct leakage test measures how much air escapes from your home’s ductwork system. During the test, a calibrated fan and pressure gauge are used to pressurize the ducts and identify air leaks. Even small leaks can add up to significant energy waste, higher utility bills, and reduced comfort inside your home.

Our team uses industry-standard testing equipment to ensure your ductwork is performing efficiently and safely. The results give you a clear picture of the health of your HVAC system and highlight whether duct sealing or replacement is needed.

Why Should You Get a Duct Leakage Test?

  • Lower Energy Bills: Leaky ducts can waste 20–30% of conditioned air. A test helps pinpoint the problem so it can be corrected.

  • Better Comfort: Eliminating duct leaks ensures every room receives the right amount of heating and cooling.

  • Improved Indoor Air Quality: Leaky ducts can draw in dust, allergens, or even attic/crawl space air. Sealing them helps keep your air clean.

  • Protect Your Investment: A properly sealed duct system reduces strain on your HVAC equipment, helping it last longer and perform more reliably.

  • Meet Code Requirements: In many cases—especially with new homes, renovations, or home sales—duct leakage testing is required to meet building codes or qualify for energy efficiency rebates.

Who Is a Good Candidate for Testing?

  • Homeowners with High Utility Bills: If your bills don’t match your usage, duct leakage may be to blame.

  • Uneven Comfort: Hot or cold spots in your home often point to duct issues.

  • Older Homes: Duct systems over 10–15 years old may have significant leaks.

  • Renovations & Additions: Anytime you remodel or add on to your home, testing ensures your ducts are working efficiently.

  • New Homeowners & Sellers: A duct leakage test can add value by documenting the efficiency of your home’s HVAC system.

Why Choose DNA Heating & Cooling?

We design and install duct systems to exceed industry standards, targeting less than 4% leakage (well below the national average). Every duct system we install or repair comes with our Lifetime Craftsmanship Warranty, giving you peace of mind that your home is in good hands.