Do You Need a Duct Leakage Test? blog header image
May 26, 2023

If you are involved in new construction projects in Denver and the surrounding Colorado area, ensuring the efficiency and effectiveness of the building's HVAC system is crucial. One essential aspect of this process is conducting a duct leakage test, also called a duct blast test.

Today we’re going to explain what a duct leakage test is and answer some frequently asked questions.

What is a Duct Leakage Test? Why Test for Duct Leakage?

A duct leakage test assesses the airtightness of a building's ductwork system. It involves pressurizing the ducts with a blower fan and measuring the amount of air leakage. By testing for leaks before drywall is hung and construction is finished, you can fix issues before the home or building owner starts to use the system, ensuring that the HVAC system operates efficiently, improving indoor air quality and minimizing energy waste.

Duct blast tests can also be performed post-construction, though this is not ideal as it can be more expensive and time consuming to address any leaks you discover as a result of testing after rough-in.

Benefits of a Duct Leakage Test

Energy Savings

Duct leakage tests identify air leaks. Leaky ducts can cause conditioned air to escape into unconditioned spaces such as attics or crawlspaces. This results in increased energy consumption as the HVAC system works harder to compensate for the lost air. By sealing these leaks, energy efficiency is improved, leading to lower utility bills and a more energy efficient system.

Improved Comfort

Leaky ducts can also result in uneven heating or cooling throughout the various parts of a home or commercial building, leading to comfort issues. By identifying and sealing leaks using a duct leakage test, the HVAC system can distribute conditioned air more effectively, leading to greater indoor comfort.

Healthier Indoor Air Quality

Leaky ducts can introduce contaminants, such as dust, allergens, and pollutants. These contaminants can then be distributed throughout the building, potentially affecting the health and well-being of occupants. A duct leakage test helps identify and address these leaks, preventing indoor air quality issues. This is particularly important for individuals with allergies, respiratory conditions, or sensitivities to airborne particles.

When Is Duct Leakage Testing Required?

Another reason to have a duct leakage test performed is to meet local energy code. In fact, testing is required in Denver for all new construction projects, regardless of where the ductwork is located. For Colorado counties outside of Denver, duct blast tests are required for any ductwork that runs through an unconditioned space, like a crawl space or unfinished attic. By adhering to these codes, you ensure your project is in compliance and avoid potential penalties or delays.

How Much Does a Duct Leakage Test Cost in Colorado?

E3 Power’s duct leakage testing services start at $275 for individual tests and $250 per test for multiple systems. Both include 1.5 hours of diagnostics. Additional diagnostics time is charged at $25 per 15 minutes.

Find a Duct Leakage Test Company Near You with e3 Power

A duct leakage test helps verify the efficiency, comfort, and air quality of a building's new HVAC system. E3 Power has over 10 years of experience and has performed over 500 duct leakage tests throughout Denver and Colorado. Talk to our team today—we can help you meet local energy codes and ensure that your new HVAC system will operate efficiently and correctly!

Schedule duct leakage testing for your new construction project. Call (303) 292-1233 or contact e3 Power online to get started.

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