Duct Leakage Test in Pequannock, NJ

Make sure your HVAC system is performing efficiently and meeting local standards with thorough duct leakage test in Pequannock, NJ. Our certified technicians find and measure ductwork air leaks, allowing homeowners and builders to improve indoor comfort, reduce energy waste, and satisfy state standards.

Why Duct Leakage Test is Important In Pequannock, 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 introduce meaningful implications for home builders and HVAC contractors active in the state. A Duct Leakage Test along with a Blower Door Test is now required for any newly constructed or remodeled home as outlined in the 2015 regulations. Did you know that leaking ducts are a widespread cause of air loss in homes across Pennsylvania, New Jersey, and Delaware? Leaked air can lead to rising energy bills, added strain on your HVAC system, and unwanted insulation and dust spreading through your home. This makes duct leakage test a key step for new and older homes alike. Read ahead to see why duct leakage test is needed and what advantages it offers.

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How a Duct Leakage Test Is Conducted

To commence a duct leakage test in Pequannock, 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 pairs with a precision pressure sensor to measure airflow and identify leak locations in the ducts without disrupting your home. A duct leakage test — sometimes referred to as a duct blaster test — uncovers air leaks in your ductwork so you can determine the ideal sealing approach.

duct leakage test is efficient, clean, and performed without bothering residents. Most tests in Pequannock, 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 assessed using cubic feet per minute (CFM) per 100 square feet of conditioned space. 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 helps you detect issues, explore potential fixes, and determine if your home aligns with local energy code requirements in Pequannock, 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, homes with leaky ducts routinely lose 20% to 30% of conditioned air. Outside air that’s too hot or too cold entering your system strains your HVAC, resulting in higher energy consumption and less comfort.

Overworked equipment also causes components to fail more often, leading to costly repairs. 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 dust, mold spores, moisture, and other pollutants enter the duct system. This can make allergies more severe, reduce the quality of indoor air, and produce costly structural harm behind walls or ceilings as time progresses.

How to Properly Seal Ductwork in an Old Home

The 2015 IRC/IECC mandates fully sealed duct systems in new homes, made from energy-efficient materials like mastic, foil tape, and proper insulation. But what about leaks that occur deep behind walls or ceilings out of sight?

Aerosol sealing technology (AeroSeal) is designed to reach and seal hidden gaps throughout the duct system. 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 injects a fine aerosolized sealant that targets small holes and gaps unreachable by traditional sealing methods.

This method is great for handling small to medium leaks. However, larger holes often require manual sealing with mastic and tape. Technicians conduct duct leakage test before and after aerosol sealing to see how much the leakage dropped and ensure the treatment worked properly.

Common Areas of Duct Leakage

The most common spot where air escapes in duct systems is the joints. Ductwork features several metal pieces pressed together using tight fittings and metal bands, though these areas are seldom airtight.

As your HVAC system heats and cools throughout the year, the ducts expand and contract. Over time, this movement allows the joints to loosen, producing gaps and leaks — which is why a duct leakage test is suggested for homes of all ages in Pequannock, NJ.

Many energy auditors examine duct leakage by touching the ducts and using a small tool to measure the gap width between joints. If your duct system hasn’t been sealed with mastic and approved tape, there is a strong likelihood that leakage is happening.

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

To achieve a passing duct leakage result, your system must read under 4 CFM per 100 square feet with the air handler installed, or 3 CFM per 100 square feet without the air handler. For new construction, the duct leakage test must be passed prior to the home being approved for an occupancy certificate.

If your home in Pequannock, 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 essential not only for following building code, but for keeping your home comfortable and energy-efficient.

Your technician will also share expert solutions for tackling leakage problems so you can pass the test, cut down utility expenses, and improve overall comfort and efficiency.

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

Local Energy Audits is proud to work with customers in Pequannock, NJ and all nearby areas. 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 ensuring all ducts and registers are sealed with duct mask tape on both the supply and return sides.

After the registers are sealed, we attach the duct tester directly to the unit or to one primary return.

The ducts are then depressurized to a Pascal of 25. With the ducts depressurized we can use the nanometer to get a reading of the duct leakage.

Schedule Your Duct Leakage Test in Pequannock, NJ

Ensure your HVAC system stays efficient, compliant, and operating at peak performance with expert duct leakage test in Pequannock, NJ. Whether you’re a homeowner enhancing indoor comfort or a contractor finishing a final inspection, our certified team offers fast, accurate, and affordable testing.

We use industry-standard duct blaster equipment and give on-site guidance to help you pass your test, minimize energy waste, and support the long-term health of your HVAC system.

📞 Call 888-213-3975 ✉️ Request a Quote

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