Duct Leakage Test in East Greenwich township, NJ

Make sure your HVAC system performs at its best and satisfies local energy standards with certified duct leakage test in East Greenwich township, NJ. Our certified technicians assess and measure air leaks in ducts to help homeowners and builders increase comfort, reduce energy inefficiencies, and ensure state compliance.

Why Duct Leakage Test is Important In East Greenwich township, NJ

Across the country, states and municipalities enforce the 2015 IECC, International Energy Conservation Code for single-family buildings and the 2018 International Energy Conservation Code for multi-family buildings. The change will have some significant implications for home builders and HVAC contractors operating in 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 ducts often contribute significantly to air leakage problems in homes throughout Pennsylvania, New Jersey, and Delaware? Leaked air can boost your energy bills, overload your HVAC system, and send dust and insulation particles throughout your home. This makes duct leakage test important for all types of homes, whether new or old. Continue reading to learn why duct leakage test is essential and how you can benefit.

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How a Duct Leakage Test Is Conducted

To commence a duct leakage test in East Greenwich township, NJ, your technician will seal every supply and return register except the primary return or air handler. A calibrated duct blaster is then mounted to the opening. By depressurizing the duct system, it creates ideal conditions for detecting air leaks.

The duct blaster collaborates with a precision pressure sensor to evaluate airflow and locate leaks throughout the ductwork without disturbing your household. A duct leakage test — commonly called a duct blaster test — detects areas where your ducts lose air, helping you select the most efficient sealing solutions.

duct leakage test is simple, clean, and minimally invasive for residents. Most tests in East Greenwich township, NJ are completed in just 30 to 60 minutes, while the benefits to comfort and efficiency can last long-term.

How to Measure Duct Leakage

Duct leakage is defined in cubic feet per minute (CFM) per 100 square feet of conditioned space within the structure. Your technician relies on a nanometer to read slight pressure variations that show the amount of air leaking through the duct system. Understanding this number enables you to recognize problem areas, consider efficiency improvements, and verify that your home meets local energy code requirements in East Greenwich township, NJ.

Cost of Excessive Duct Leakage

If you’re encountering increased energy bills, temperature inconsistencies, or constant HVAC repairs, duct leakage could be the source. According to ENERGY STAR, the average duct system loses between 20% and 30% of its conditioned air due to leaks. Outside hot or cold air leaking into your system puts extra strain on your HVAC unit, raising energy bills and decreasing comfort.

Overworked equipment also leads to recurring breakdowns and higher repair expenses. Proper duct sealing helps protect the long-term performance of your HVAC system, increasing its lifespan and lowering future maintenance requirements.

Duct leaks can also let dust, mold spores, moisture, and other pollutants enter the duct system. This can worsen allergy conditions, affect indoor air quality, and result in costly damage forming behind walls or ceilings over time.

How to Properly Seal Ductwork in an Old Home

The 2015 IRC/IECC ensures that new homes are built with duct systems sealed entirely using efficient materials such as mastic, foil tape, and insulation. But what if some leaks are hidden within the depths of your walls or ceilings?

Aerosol sealing technology (AeroSeal) makes it possible to seal leaks found deep within the ductwork. To use this method, technicians seal all vents except one access point. The HVAC system is isolated, and a machine is hooked up to the duct system. It pressurizes the ducts and releases a fine sealant mist that finds and fills small holes that traditional sealing methods cannot access.

This method is great for handling small to medium leaks. However, larger holes often require manual sealing with mastic and tape. Technicians perform pre- and post-aerosol sealing duct leakage tests to measure the improvement and confirm treatment effectiveness.

Common Areas of Duct Leakage

The most frequent point of air leakage in ductwork is the joints. Multiple metal parts are pressed together using tight fittings and metal bands, although these junctions are seldom airtight.

As your HVAC system changes between heating and cooling during the year, the ducts naturally expand and shrink. Over time, this movement leads the joints to loosen, resulting in gaps and leaks — making a duct leakage test important for new and older homes in East Greenwich township, NJ.

Many energy auditors locate duct leakage by touching the ductwork and using a small tool to measure the width of separation between joints. If your duct system hasn’t been finished with mastic and approved tape, leaks are highly likely.

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

To achieve a passing duct leakage result, your system must show under 4 CFM per 100 square feet if the air handler is installed, or 3 CFM per 100 square feet if it is not. For new construction, homes are required to pass a duct leakage test before an occupancy certificate can be issued.

If your home in East Greenwich township, NJ cannot pass a duct leakage test, you are likely wasting money on heating and cooling — and causing long-term wear on your HVAC system. Meeting the 3–4 CFM requirement is crucial not only for passing code but also for maintaining your home’s overall energy efficiency and comfort.

Your technician will also share expert recommendations for fixing leakage problems, helping you achieve a passing score, save on utilities, and improve home performance.

Local Energy Audits — affordable duct leakage test in East Greenwich township, NJ

Local Energy Audits proudly covers East Greenwich township, NJ and all nearby towns. We specialize in locating and diagnosing duct leakage and energy inefficiencies through blower door and duct leakage tests. Whether your home is newly built or older, we’re here to help.
If you’d like to schedule 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 sealing all the ducts and registers with duct mask tape on both the supply and return side.

After the registers are sealed, we position the duct tester on the HVAC unit or on a primary return.

The ducts are then brought to a depressurized pressure of 25 Pascals. Once depressurized, we use the nanometer for a leakage reading.

Schedule Your Duct Leakage Test in East Greenwich township, NJ

Ensure your HVAC system achieves strong efficiency, full compliance, and dependable operation with precise duct leakage test in East Greenwich township, NJ. Whether you’re a homeowner aiming for better comfort or a contractor completing final approval, our certified team ensures fast, accurate, and affordable testing.

We use industry-standard duct blaster equipment and offer direct on-site guidance to help you pass your test, lower energy waste, and protect your HVAC system’s long-term health.

📞 Call 888-213-3975 ✉️ Request a Quote

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