Duct Leakage Test in Island Heights borough, NJ

Keep your HVAC system energy-efficient and up to code with accurate duct leakage test in Island Heights borough, 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 Island Heights borough, 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 result in significant implications for home builders and HVAC contractors doing business in the state. A Duct Leakage Test plus a Blower Door Test are now compulsory in newly constructed or renovated homes according to the 2015 regulations. Did you know that ducts are among the biggest contributors to air leakage in homes all across Pennsylvania, New Jersey, and Delaware? Leaked air can escalate your energy costs, force your HVAC system to work harder, and move insulation and dust throughout your house. 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 start conducting a duct leakage test in Island Heights borough, NJ, the technician seals all supply and return registers other than the main return or the air handler. A specially calibrated device known as a duct blaster is then attached to the duct opening. Its purpose is to depressurize the system so that escaping air can be detected.

The duct blaster joins forces with a precision pressure sensor to monitor airflow and pinpoint leak points in the ducts without disturbing your home. A duct leakage test — sometimes known as a duct blaster test — shows exactly where your ducts are leaking air so you can apply the right sealing fixes.

duct leakage test is simple, clean, and minimally invasive for residents. Most tests in Island Heights borough, NJ finish in 30 to 60 minutes, and the upgrades continue benefiting your home’s comfort and efficiency long after.

How to Measure Duct Leakage

Duct leakage is evaluated in cubic feet per minute (CFM) per 100 square feet of conditioned space inside the home. Your technician uses a nanometer to detect pressure variations, helping quantify the amount of duct leakage. Understanding this number helps you locate trouble spots, review possible upgrades, and see if your home complies with local energy code requirements in Island Heights borough, NJ.

Cost of Excessive Duct Leakage

If you’re facing higher energy bills, uneven heating or cooling, or recurring HVAC repairs, duct leakage could be to blame. According to ENERGY STAR, leaking ducts cause the average home to lose 20%–30% of conditioned air. Hot or cold outdoor air infiltrating your system makes your HVAC system work overtime, which boosts energy costs and reduces comfort.

Overworked equipment also heightens the chance of system failures and expensive repairs. Proper duct sealing helps ensure the long-term stability of your HVAC system, extending its lifespan and reducing future maintenance work.

Duct leaks can also permit dust, mold spores, extra moisture, and other airborne contaminants into the duct system. This can worsen allergies, reduce indoor air quality, and even cause expensive structural damage behind walls or ceilings over time.

How to Properly Seal Ductwork in an Old Home

The 2015 IRC/IECC calls for new homes to include duct systems that are completely sealed using efficient materials such as mastic, foil tape, and insulation. But what happens when leaks are hidden deep inside walls or ceilings?

Aerosol sealing technology (AeroSeal) gives technicians a way to reach concealed duct leaks without opening walls or ceilings. To conduct this method, all vents are blocked except for one access point. The HVAC system is isolated, and a machine is connected to the duct system. It pressurizes the ducts and sprays a fine mist of sealant that fills tiny leaks and holes beyond the reach of conventional sealing.

This method excels at sealing small to medium leaks. However, bigger holes often must be sealed manually with mastic and tape. Technicians use a duct leakage test before and after aerosol sealing to evaluate how much leakage has been lowered and verify the results.

Common Areas of Duct Leakage

The most frequent source of duct air leakage is the joints. Ductwork uses many metal pieces pressed together with tight fittings and metal bands, but these joining points are rarely airtight.

As your HVAC system delivers heat and cooling across different seasons, the ducts constantly expand and contract. Over time, this movement shifts and loosens the joints, resulting in gaps and leaks — which is why all homes in Island Heights borough, NJ, new or older, benefit from duct leakage test.

Many energy auditors check for leaks by feeling along the ductwork and using a small tool to gauge the size of gaps between joints. If your duct system is missing mastic and approved tape sealing, there’s a significant chance that air leakage is happening.

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

To achieve a passing duct leakage result, your system must remain below 4 CFM per 100 square feet with the air handler installed, or 3 CFM per 100 square feet if the air handler is missing. For new construction, a duct leakage test must be passed before any home is eligible to receive an occupancy certificate.

If your home in Island Heights borough, NJ cannot achieve a passing duct leakage score, you are likely wasting money on heating and cooling — and increasing wear on your HVAC system over time. Meeting the 3–4 CFM requirement is significant not only for meeting local code but also for maintaining optimal comfort and efficiency in your home.

Your technician will also offer professional recommendations to tackle leakage issues so you can secure a passing score, reduce utility costs, and strengthen home performance.

Local Energy Audits — affordable duct leakage test in Island Heights borough, NJ

Local Energy Audits is proud to serve families and builders across Island Heights borough, NJ and the surrounding local areas. We specialize in uncovering duct leakage and energy inefficiencies using both blower door tests and duct leakage tests. Whether you’re starting a new build or improving a current home, we’re here to assist.
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 with duct mask tape being placed on all ducts and registers on both the supply and return sides.

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

The ducts are then reduced to a depressurized state of 25 Pascals. With them depressurized, the nanometer gives us the duct leakage reading.

Schedule Your Duct Leakage Test in Island Heights borough, NJ

Ensure your HVAC system stays energy-efficient, fully compliant, and operating at peak performance with accurate duct leakage test in Island Heights borough, NJ. Whether you’re a homeowner optimizing comfort or a contractor completing mandatory inspections, 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.

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