Duct Leakage Test in Wenonah, NJ

Protect system efficiency and meet local building codes by choosing certified duct leakage test in Wenonah, NJ. Our certified technicians inspect and measure air leakage in ductwork, enabling homeowners and builders to boost comfort, prevent energy waste, and adhere to state guidelines.

Why Duct Leakage Test is Important In Wenonah, NJ

In most states and municipalities, the 2015 IECC, International Energy Conservation Code is required for single-family homes, while the 2018 International Energy Conservation Code is required for multi-family homes. The change will create several important implications for home builders and HVAC contractors operating within the state. A Duct Leakage Test as well as the required Blower Door Test must now be performed on new or remodeled homes following the 2015 regulations. Did you know that duct systems can be major sources of air leakage in homes across Pennsylvania, New Jersey, and Delaware? Leaked air can cause your energy bills to rise, strain your HVAC system, and move dust and insulation around your living spaces. This makes duct leakage test an essential part of maintaining both new and older homes. Keep reading to discover why duct leakage test is important and how it can support your home.

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How a Duct Leakage Test Is Conducted

To begin performing a duct leakage test in Wenonah, NJ, your technician closes off all supply and return registers except the main return or air handler system. A specially calibrated fan called a duct blaster is then connected to the opening. This fan depressurizes the duct system, making it easier to pinpoint exactly where air is leaking.

The duct blaster functions with a precision pressure sensor to analyze airflow and spot leaks in the duct system without affecting your home’s comfort. A duct leakage test — sometimes labeled as a duct blaster test — finds where your ducts are leaking air so you can decide on the best sealing strategy.

duct leakage test is prompt, clean, and does not interrupt residents’ activities. Most tests in Wenonah, NJ take only 30 to 60 minutes, yet the comfort and efficiency gains can last for years.

How to Measure Duct Leakage

Duct leakage is determined in cubic feet per minute (CFM) for every 100 square feet of conditioned interior space. Your technician uses a nanometer to capture subtle pressure changes, allowing accurate measurement of duct air leakage. Understanding this number helps you detect inefficiencies, assess needed upgrades, and ensure your home complies with local energy code requirements in Wenonah, NJ.

Cost of Excessive Duct Leakage

If you are experiencing high utility bills, uneven temperatures, or frequent HVAC repairs, duct leakage may be the cause. According to ENERGY STAR, the average household loses 20%–30% of conditioned air because of leaking ducts. Hot or cold outside air entering your system forces your HVAC system to work harder, driving up energy costs and reducing comfort.

Overworked equipment also makes breakdowns more common and repairs more expensive. Proper duct sealing helps promote the long-term integrity of your HVAC system, extending its lifespan and limiting continued maintenance needs.

Duct leaks can also let in dust, mold spores, added moisture, and other harmful contaminants. This can negatively influence allergies, weaken indoor air quality, and lead to expensive long-term damage behind walls or ceilings.

How to Properly Seal Ductwork in an Old Home

The 2015 IRC/IECC mandates that new homes include fully sealed duct systems built with energy-efficient materials like mastic, foil tape, and proper insulation. But what if those leaks are tucked away behind walls or ceilings?

Aerosol sealing technology (AeroSeal) gives technicians a way to reach concealed duct leaks without opening walls or ceilings. To begin this method, every vent is sealed except for one access opening. The HVAC unit is isolated, and a machine is installed onto the duct system. It pressurizes the ducts and injects a fine aerosolized sealant that targets small holes and gaps unreachable by traditional sealing methods.

This method works very well for small to medium leaks. However, larger openings may still need to be sealed manually with mastic and tape. Technicians carry out a duct leakage test before and after aerosol sealing to assess how much leakage has improved and ensure the treatment was effective.

Common Areas of Duct Leakage

The most typical location for air to escape from ducts is at the joints. Duct systems are built from multiple metal pieces pressed together with tight fittings and metal bands, but these joints are seldom completely airtight.

As your HVAC system warms and cools over the seasons, the ductwork expands and then contracts. Over time, this movement shifts and loosens the joints, resulting in gaps and leaks — which is why all homes in Wenonah, NJ, new or older, benefit from duct leakage test.

Many energy auditors detect leaks by checking the duct surfaces by hand and using a small tool to measure joint gap width. If your duct system lacks proper sealing with mastic and approved tape, there is a high chance that leakage is taking place.

What Is an Acceptable Amount of Duct Leakage per Energy Code?

To achieve a passing duct leakage result, your system needs to register under 4 CFM per 100 square feet with the air handler attached, or 3 CFM per 100 square feet without it attached. For new construction, the home must pass a duct leakage test before qualifying for an occupancy certificate.

If your home in Wenonah, NJ does not meet the duct leakage requirement, you’re likely paying elevated heating and cooling costs — and overburdening your HVAC system. Meeting the 3–4 CFM requirement is essential not only for code compliance but also for protecting your home’s energy efficiency and comfort.

Your technician will also provide expert recommendations on how to address leakage issues so you can achieve a passing score, lower your utility bills, and improve your home’s overall performance.

Local Energy Audits — affordable duct leakage test in Wenonah, NJ

Local Energy Audits proudly delivers services across Wenonah, NJ and the surrounding neighborhoods. We specialize in diagnosing duct leakage and energy inefficiencies through blower door and duct leakage test. Whether your home is new or existing, we’re ready to help.
If you’d like to book a test, call us during business hours or contact us online to request an appointment.

The Duct Leakage Test Steps Explained

A duct leakage test begins by ensuring all ducts and registers are sealed with duct mask tape on both the supply and return sides.

After the registers are sealed, we set up the duct tester by attaching it to the unit or a main return.

The ducts are then brought down to 25 Pascals of pressure. With the ducts depressurized, the nanometer can be used to read the leakage level.

Schedule Your Duct Leakage Test in Wenonah, NJ

Ensure your HVAC system stays energy-efficient, fully compliant, and operating at peak performance with accurate duct leakage test in Wenonah, NJ. Whether you’re a homeowner addressing comfort issues or a contractor completing the last inspection step, our certified team ensures fast, accurate, and affordable testing.

We use industry-standard duct blaster equipment and supply on-site guidance to help you pass your test, reduce energy loss, and maintain the long-term health of your HVAC system.

📞 Call 888-213-3975 ✉️ Request a Quote

Serving homeowners, builders, and contractors across Wenonah, NJ with dependable and energy-efficient testing solutions.