Duct Leakage Test in Millville city, NJ

Ensure your HVAC system operates efficiently and meets local energy codes with professional duct leakage test in Millville city, NJ. Our certified technicians discover and measure air leaks in ductwork so homeowners and builders can achieve better comfort, cut down on energy waste, and meet state compliance needs.

Why Duct Leakage Test is Important In Millville city, NJ

States and municipalities have adopted 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 present notable implications for home builders and HVAC contractors active throughout the state. A Duct Leakage Test together with a Blower Door Test must now be performed in all newly built or remodeled homes to comply with the 2015 regulations. Did you know that ducts are responsible for a large share of air leakage issues in homes in 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 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 start the duct testing process in Millville city, NJ, the technician seals all supply and return registers except for the main return or the air handler. A duct blaster — a precision-calibrated fan — is then fitted to the duct opening. By depressurizing the system, it makes all air leaks much easier to detect.

The duct blaster operates alongside a precision pressure sensor to track airflow and identify duct leaks without disrupting your home. A duct leakage test — sometimes labeled as a duct blaster test — finds where your ducts are leaking air so you can decide on the best sealing strategy.

duct leakage test is swift, clean, and carried out with no disturbance to residents. Most tests in Millville city, NJ are done within 30 to 60 minutes, with improvements that strengthen comfort and efficiency for years to come.

How to Measure Duct Leakage

Duct leakage is calculated in cubic feet per minute (CFM) for every 100 square feet of conditioned space. Your technician uses a nanometer to sense slight pressure changes, showing precisely how much air is escaping through the ductwork. Understanding this number allows you to highlight problem zones, explore improvement possibilities, and confirm compliance with local energy code requirements in Millville city, NJ.

Cost of Excessive Duct Leakage

If you’re experiencing spikes in utility bills, uncomfortable temperature variations, or ongoing HVAC repair needs, duct leakage may be to blame. According to ENERGY STAR, many homes lose as much as 20% to 30% of conditioned air through duct 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 makes breakdowns more common and repairs more expensive. 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 enable dust, mold spores, elevated moisture, and unwanted contaminants to infiltrate the duct system. This can aggravate allergies, lower indoor air quality, and eventually lead to costly structural damage hidden behind walls or ceilings.

How to Properly Seal Ductwork in an Old Home

The 2015 IRC/IECC states that new homes must have duct systems sealed completely with energy-efficient products such as mastic, foil tape, and insulation. But what happens when leaks are hidden deep inside walls or ceilings?

Aerosol sealing technology (AeroSeal) enables effective sealing of leaks hidden inside ducts. To apply this method, every vent is sealed aside from one access point. The HVAC system is isolated, and a machine is connected to the ducts. It pressurizes the ducts and distributes an ultra-fine aerosol sealant to fill small gaps and holes that manual sealing methods can’t access.

This method is ideal for small to medium leaks. However, any large openings will still need manual sealing 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 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 provides heating and cooling year-round, the ducts repeatedly expand and contract. Over time, this movement compromises the joints, forming gaps and leaks — which is exactly why duct leakage test is encouraged for new and older homes in Millville city, NJ.

Many energy auditors detect leaks by checking the duct surfaces by hand and using a small tool to measure joint gap width. 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 measure below 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, a duct leakage test must be passed before any home is eligible to receive an occupancy certificate.

If your home in Millville city, NJ doesn’t pass its duct leakage evaluation, you’re likely paying more for temperature control — and contributing to long-term HVAC strain. 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 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 Millville city, NJ

Local Energy Audits proudly helps clients across Millville city, NJ and surrounding communities. We specialize in measuring duct leakage and energy inefficiencies using advanced blower door and duct leakage tests. Whether you’re building new or improving old, we’re here to help.
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 applying duct mask tape to seal every duct and register on both the supply and return sides.

After the registers are sealed, we set up the duct tester by attaching it to the unit or a main return.

The ducts are then depressurized to a level of 25 Pascals. Once depressurized, the nanometer provides an accurate duct leakage reading.

Schedule Your Duct Leakage Test in Millville city, NJ

Ensure your HVAC system stays energy-efficient, fully compliant, and operating at peak performance with accurate duct leakage test in Millville city, NJ. Whether you’re a homeowner seeking better comfort or a contractor wrapping up a final inspection, our certified team delivers fast, accurate, and affordable testing.

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

📞 Call 888-213-3975 ✉️ Request a Quote

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