Duct Leakage Test in Walpack Township, NJ

Maintain top HVAC efficiency and stay aligned with local energy codes using trusted duct leakage test in Walpack Township, NJ. Our certified technicians locate and assess air leaks in ductwork to help homeowners and builders improve comfort, reduce energy consumption, and comply with state regulations.

Why Duct Leakage Test is Important In Walpack Township, 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 generate several impactful implications for home builders and HVAC contractors operating statewide. A Duct Leakage Test and a required Blower Door Test are now part of the compliance process for new construction and remodeled homes under 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 increase monthly energy costs, stress your HVAC system, and scatter dust and insulation across your living areas. This makes duct leakage test essential for both new and older homes. Continue reading to understand why duct leakage test matters and how it can benefit you.

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How a Duct Leakage Test Is Conducted

To perform a duct leakage test in Walpack Township, NJ, the technician begins by sealing every supply and return register except for the primary return or air handler unit. A duct blaster — a specially calibrated fan — is then connected to the opening. It depressurizes the duct system to expose areas where air is leaking.

The duct blaster uses its precision pressure sensor partner to measure airflow and uncover duct leaks without causing any home disruption. A duct leakage test — frequently called a duct blaster test — reveals air escape points in your ducts, guiding you toward the best sealing options.

duct leakage test is swift, clean, and carried out with no disturbance to residents. Most tests in Walpack Township, NJ take around 30 to 60 minutes, but the efficiency and comfort improvements can last for many 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 monitor tiny pressure fluctuations that indicate how much air is leaking through the ducts. Understanding this number lets you identify inefficiencies, weigh improvement options, and confirm your home’s compliance with local energy code requirements in Walpack Township, 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, the average duct system loses between 20% and 30% of its conditioned air due to leaks. When your system pulls in hot or cold outdoor air, the HVAC unit has to work harder, driving up energy usage and reducing comfort indoors.

Overworked equipment also leads to recurring breakdowns and higher repair expenses. Proper duct sealing helps sustain your HVAC system’s long-term condition, increasing its operational lifespan and decreasing maintenance requirements.

Duct leaks can also create openings for dust, mold spores, moisture, and various contaminants to enter the duct system. This can worsen allergy reactions, negatively affect indoor air quality, and contribute to costly hidden structural damage over the years.

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 happens when air leaks are concealed deep in the walls or ceilings?

Aerosol sealing technology (AeroSeal) enables effective sealing of leaks hidden inside ducts. To perform the technique, all vents are sealed except a single access opening. The HVAC system is isolated, and a machine is hooked into 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 conduct a duct leakage test before and after aerosol sealing to measure how much the leakage has been reduced and ensure the treatment is successful.

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 regulates temperatures through the seasons, the ducts expand when heated and contract when cooled. Over time, this movement loosens the joints, causing gaps and leaks — which is why both new and older homes in Walpack Township, NJ should consider a duct leakage test.

Many energy auditors test for duct leakage by feeling along the ducts and using a small tool to gauge how wide the gaps are at the joints. If your duct system has not received sealing with mastic and approved tape, leakage is very probable.

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

To achieve a passing duct leakage result, your system has to be under 4 CFM per 100 square feet when the air handler is in place, or 3 CFM per 100 square feet without it installed. For new construction, a duct leakage test must be successfully passed before the home can obtain an occupancy certificate.

If your home in Walpack Township, NJ does not pass a duct leakage test, you are likely paying more than necessary for heating and cooling — and placing long-term strain on your HVAC equipment. 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 recommend effective ways to fix leakage issues so you can earn a passing score, save on utilities, and improve home performance.

Local Energy Audits — affordable duct leakage test in Walpack Township, NJ

Local Energy Audits proudly covers Walpack Township, NJ and all nearby towns. 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 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 taping off all ducts and registers with duct mask tape on the supply and return sides.

After the registers are sealed, we secure the duct tester to the HVAC unit or to 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 Walpack Township, NJ

Ensure your HVAC system stays energy-efficient, fully compliant, and operating at peak performance with accurate duct leakage test in Walpack Township, 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 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 Walpack Township, NJ with dependable and energy-efficient testing solutions.