Duct Leakage Test in Dumont, NJ

Verify your HVAC system’s efficiency and meet local requirements with reliable duct leakage test in Dumont, 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 Dumont, NJ

States and municipalities now follow the 2015 IECC, International Energy Conservation Code for single-family residences, as well as the 2018 International Energy Conservation Code for multi-family structures. The change will introduce meaningful implications for home builders and HVAC contractors active in the state. A Duct Leakage Test in addition to a Blower Door Test is now required for new construction and remodeled homes under the 2015 rules. Did you know that duct systems contribute heavily to air leakage in homes throughout 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 vital for homes both old and newly built. Keep reading to find out why duct leakage test matters and what benefits it provides.

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How a Duct Leakage Test Is Conducted

To set up a duct leakage test in Dumont, NJ, the technician begins by sealing all supply and return registers, leaving only the air handler or main return open. A duct blaster, which is a specially calibrated fan, is then installed at the opening. The fan depressurizes the ducts, helping identify all points where air may be escaping.

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 — often described as a duct blaster test — identifies leaking areas in your ducts so you can determine the most efficient sealing fix.

duct leakage test is prompt, clean, and does not interrupt residents’ activities. Most tests in Dumont, NJ finish within 30 to 60 minutes, and the benefits to your home’s comfort and efficiency can last for years.

How to Measure Duct Leakage

Duct leakage is monitored in cubic feet per minute (CFM) per 100 square feet of the conditioned sections of the home. Your technician uses a nanometer to read small pressure variations, helping determine the volume of air escaping through the ducts. Understanding this number helps you pinpoint leakage points, think through potential improvements, and verify your home’s adherence to local energy code requirements in Dumont, NJ.

Cost of Excessive Duct Leakage

If your energy bills are unusually high, your rooms feel unevenly heated or cooled, or your HVAC system needs frequent repairs, duct leakage could be the issue. According to ENERGY STAR, leaking ducts cause the average home to lose 20%–30% of conditioned air. Hot or cold air entering from outside increases the workload on your HVAC system, leading to higher energy bills and a drop in comfort.

Overworked equipment also contributes to repeated breakdowns and pricey repairs. Proper duct sealing helps maintain the long-term health of your HVAC system, extending its lifespan and reducing ongoing maintenance needs.

Duct leaks can also cause dust, mold spores, and excess moisture — along with other contaminants — to infiltrate the duct system. This can heighten allergy issues, compromise indoor air quality, and slowly cause expensive structural damage behind walls or ceilings.

How to Properly Seal Ductwork in an Old Home

The 2015 IRC/IECC requires all newly constructed homes to have fully sealed ductwork with modern, energy-saving materials such as mastic, foil tape, and insulation. But what if those leaks are tucked away behind walls or ceilings?

Aerosol sealing technology (AeroSeal) enables effective sealing of leaks hidden inside ducts. To complete this method, all vents are closed off except for one access opening. The HVAC system is isolated, and a machine is linked to the duct system. It pressurizes the ducts and emits a fine aerosolized sealant designed to fill small leaks unreachable with standard sealing.

This method seals small to medium leaks effectively. However, large gaps may still call for manual sealing using mastic and tape. Technicians run a duct leakage test before and after aerosol sealing to quantify the reduction in leakage and verify the success of the process.

Common Areas of Duct Leakage

The most usual area for air leakage in ducts is at the joints. Ductwork includes various metal pieces pressed together using tight fittings and metal bands, but these connections are hardly ever airtight.

As your HVAC system moves through annual heating and cooling cycles, the ductwork expands and then contracts. Over time, this movement causes the joints to loosen, opening gaps and leaks — making a duct leakage test beneficial for both new and older homes in Dumont, NJ.

Many energy auditors detect duct leakage by physically checking the ducts and using a small tool to assess the width of joint gaps. If your duct system has not been properly sealed with mastic and approved tape, it’s very likely that leakage exists.

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

To achieve a passing duct leakage result, your system needs to be under 4 CFM per 100 square feet when the air handler is installed, or 3 CFM per 100 square feet when it isn’t. For new construction, the home must pass a duct leakage test before qualifying for an occupancy certificate.

If your home in Dumont, 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 critical not just for code compliance, but also for defending your home’s comfort and energy performance.

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 Dumont, NJ

Local Energy Audits proudly delivers services across Dumont, NJ and the surrounding neighborhoods. We specialize in pinpointing duct leakage and energy inefficiencies using blower door tests and duct leakage tests. Whether you’re constructing a new house or upgrading your current one, we’re here for you.
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 sealing all the ducts and registers with duct mask tape on both the supply and return side.

After the registers are sealed, we attach the duct tester to either the unit itself or a main 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 Dumont, NJ

Ensure your HVAC system is operating efficiently, compliant with code, and performing optimally with high-quality duct leakage test in Dumont, NJ. Whether you’re a homeowner looking for improved comfort or a contractor preparing for a final inspection, our certified team provides fast, accurate, and affordable testing.

We use industry-standard duct blaster equipment and supply on-site support to help you pass your test, curb energy waste, and maintain your HVAC system’s long-term performance.

📞 Call 888-213-3975 ✉️ Request a Quote

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